|Publication number||US20050279722 A1|
|Application number||US 11/210,014|
|Publication date||Dec 22, 2005|
|Filing date||Aug 23, 2005|
|Priority date||Aug 22, 2003|
|Publication number||11210014, 210014, US 2005/0279722 A1, US 2005/279722 A1, US 20050279722 A1, US 20050279722A1, US 2005279722 A1, US 2005279722A1, US-A1-20050279722, US-A1-2005279722, US2005/0279722A1, US2005/279722A1, US20050279722 A1, US20050279722A1, US2005279722 A1, US2005279722A1|
|Original Assignee||Ala Ali|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (19), Referenced by (44), Classifications (4)|
|External Links: USPTO, USPTO Assignment, Espacenet|
This is a continuation in part of U.S. patent application Ser. No. 10/924,665, filed Aug. 23, 2004 which claims the priority of U.S. Provisional Patent Application Ser. No. 60/497,437 filed on Aug. 22, 2003.
1. Field of the Invention
The invention relates to inventory control systems and in particular to systems which monitor and report on the number of items stored at a particular location.
2. Description of the Prior Art
Many inventory management systems such as those in grocery stores and general merchandising stores commonly display products for sale on a shelf. In an effort to organize products in a more cost-effective and time-efficient manner, and display them in an esthetically pleasing way, stores began placing dividers and pusher paddles on shelves. Dividers may vary in length and height to facilitate better organization of products on a shelf. They allow a pusher paddle to be placed in between them to move products forward as products are retrieved from the front of the shelf.
Inventory data, that is, data reflecting the number of items, such as a can, at a particular location on a shelf is conventionally collected manually although various proposals have been made to automate the collection of such data.
Conventional product display systems, such as the Shelf-facing System, available from FFr Inc. of Cleveland, Ohio include a spring-powered pusher paddle movable on a track against the resistance of a flat spring coiled within. In a grocery store application, a series of cans may be lined up in front of the paddle to fill the shelf. As one can is removed, the spring causes the remaining cans to be pushed forward to maintain the appearance of a full shelf.
What is needed is an improved technique for automating the collecting of inventory data.
An inventory control system is disclosed in one aspect having one or more paddles, a position of which is changed by adding or removing items to be inventoried, one or more encoder strips, each connected for motion with a paddle and one or detectors at least one of which is each responsive to the motion of an encoder strip to determine the addition or removal of the items.
An inventory control system is disclosed in one aspect having one or more paddles, a position of which is changed by adding or removing items to be inventoried, each paddle including an illumination target, one or more sources of illumination, each illuminating one or more targets and one or more detectors, each responsive to light reflected from the one or more targets for detecting motion of each paddle to determine how many items to be inventoried were removed from inventory related to each such paddle.
An inventory control system is disclosed in a further aspect having a housing including a plurality of detectors, each detector including a source of illumination and one or more photo detectors configured to detect motion of the contrasting bars of an encoder strip which may be associated therewith to determine how many items were removed and/or removed from inventory associated therewith, each detector further including a post on which may be mounted a self coiling portion of an encoder strip, a linear member of which may be extended or retracted in response to the motion of a pusher associated with a subset of the items, whereby changes in the configuration of the items to be inventoried may easily be accommodated by changing the number and position of the pushers, attaching a portion of the linear member of an encoder strip to each pusher and mounting a self coiling portion of that encoder strip on a convenient post.
A method for inventory control is disclosed by providing a plurality of detectors mounted on a housing, providing a plurality of encoding strips, one of which may be associated with each of the detectors and connected for motion with a pusher associated with items to be inventoried and detecting motion of the encoder strips to determine items removed from inventory.
An improved inventory monitoring system is disclosed that allows users to keep their existing organization and display mechanism of products, yet monitors and communicates the most updated inventory of the products almost at the same time a change is made to the inventory. At the very moment a customer picks up a product and removes it from a product display space, the present inventory monitoring system would determine the number of the products remaining on the display space and transmits that information to a computer to be viewed by any user whoever has access to the computer, e.g., the manager of the store, an employee of the store, or the supplier of the products. The manager or any other employee of the store can react to the information by immediately replenishing the display space with a new set of the products. The supplier of the products may alert the store to order more supplies of the products.
An improved inventory monitoring system is disclosed that can be used to prevent theft. Knowing the most updated count of products displayed on the display space alert the store of a potential shoplifting. Because most shoplifters steal more than one item at a time, the significant decrease of the number of products in a short period of time will alert the store whether a potential shoplifting has taken place. Before the perpetrator leaves the store, the store security, acting based upon the most updated information, can locate and capture the perpetrator.
Such information can also be displayed near the display space to alert the employees of the number of the products remaining on the display space along with any other relevant information about the products, such as the price, the name and the sale status, the bar code number, etc. The employees walking by the display space then can react immediately and replenish the display space with a new set of the products on the display space before the products completely run out.
An improved inventory monitoring system is disclosed that uses an electronic detection system within a product display space to detect a movement of the inventory products. The product display space comprises a pusher paddle which indicates the position of the product placed farthest from the front of the product display space. By knowing the depth of the product and detecting the movement of the inventory products displayed on the display space, the improved inventory monitoring system calculates the number of products remaining on the display space.
After having determined the depth of the products 2, a user can use any of the following embodiments to detect the movement of the pusher paddle 7 and ultimately determine the most updated count of the products 2 remaining on the display space 4.
Referring now also to
The computer mouse 8 will sense any movement of the pusher paddle 7 and communicate the movement to a computer 10 which is in communication with the computer mouse 8.
As shown for example in
Electronic wiring and displays 6 can also be used to display product information like product name, product description, prices and inventory levels, etc.
For example, in
As Referring now also to
The encoder 103 may be slideably configured along the length of the display space to cover at least the combined depths of all the products displayed on the display space. The encoder 103 may have one end of the encoder 103 substantially in connection with the pusher paddle 107 so that the encoder 103 can move as the pusher paddle 107 moves along the length of the display space.
In one embodiment, the encoder 103 may have one end of the encoder 103 substantially in connection with one end of the spring within the pusher paddle 107 and have the other end of the encoder 103 substantially in connection with the other end of the spring within the pusher paddle 107 so that the encoder 103 can move as the pusher paddle 107 moves along the length of the displace space.
The encoder 103 that is substantially in connection with the pusher paddle 107 may loop around the display space. As the pusher paddle 107 moves towards the back end of the display space, the encoder 103 moves towards the back end of the display space 104. As the pusher paddle 107 moves towards the front of the display space, the encoder 103 moves towards the front of the display space.
As illustrated in
The rate of the pulsing is directly related to the speed of the encoder 103 which is directly related to the speed of the pusher paddle 107. Similarly, the rate of the pulsing is directly related to the distance that the encoder 103 has traveled which is directly related to the distance that the pusher paddle 107 has traveled. The pulses of light that have been received by the photocell 102 will be converted to the exact distance that the pusher paddle 107 has traveled, which will then be converted to the number of products remaining on the display space 104. Specifically, the distance that the pusher paddle 107 has traveled will be calculated by counting the pulses of lights being received and blocked through the encoder 103. The number of light pulses being received and blocked correlates to the number of the holes evenly spaced in the encoder 103 that the light has traveled through. Thus, using the number of light pulses being received and blocked can be translated to the distance that the encoder 103 has traveled, which is the distance that the pusher paddle 107 has traveled.
In another embodiment, two photocells 102 are used so that the system can detect both addition and deletion of a product to the display space. As illustrated in
As the encoder 103 moves in one direction the pulses of light are detected by one photocell before the other photocell. For example, if on an X-Y axis the encoder 103 moves from 0 to 100 (positive and to the right) and one photocell is at point (1,0) and the other photocell is at (2,0), a light pulse will be first detected by the photocell at (1,0) and then by the photocell at (2,0). If the encoder 103 is moving in the opposite direction, a light pulse will be first detected by the photocell at (2,0) and then by the photocell at (1,0).
When the pusher paddle 107 moves, the encoder 103 moves along with the pusher paddle 107, changing the light being traveled though the holes in the encoder 103. Because of their horizontal alignment along the encoder 103, one photo cell will detect the change in the light being traveled through the encoder 103 before the other photocell. If the first photocell has been receiving a beam of light through one of the holes in the encoder 103, it will now detect the light being blocked by the filled-in portion of the encoder 103. If the first photocell has not being receiving light, it will now detect a beam of light traveling through one of the holes on the encoder 103, and detect that the light is now being blocked before the other photocell detects such change. The distance that the pusher paddle 107 has traveled will be calculated by counting the number of light pulses being received and blocked through the encoder 103. The number of light pulses being received and blocked correlates to the number of the holes evenly spaced in the encoder 103. Thus, using the number of light pulses being received and blocked can be translated to the distance that the encoder 103 has traveled, which is the distance that the pusher paddle 107 has traveled. The system can detect the change of direction which translates to either addition or removal of products from the display space.
The photocell 102 is in connection with a computer 110 so that any movement of the pusher paddle 107 is determined and communicated to the computer 110 for users to view and stored in a database to be used at a later time. The computer may also be in connection with an electronic display 112 placed near the display space so that the most updated count of the products remaining on the display space can be displayed, along with other relevant information about the products, such as the price, the name, the sale status, the bar code number, etc. The computer 110 may also be in connection with another computer so that the most updated count of the products can be communicated to a remote user.
Referring now to
The nature of inventory systems is that the goods may not, and often are not, the same size at all locations even on the same shelf. Multistation unit 13, as shown in the figure, has four separate stations although a smaller or larger number of stations may be advantageous in particular applications. If inventory goods substantially larger the diameter of can goods 24 were to be stored on multistation unit 13 in addition to can goods 24, such larger can goods could be stored in station 10, while stations 18 and 20 were not used. Multistation monitor 24 may include a large number of monitor stations which provides the capability of working with a large number of inventory stations so that maximum shelf space may be utilized, but multistation monitor is sufficiently flexible so that the removal or non-installation of one or more of the stations does not alter the collection of data. Multistation monitor 24 therefore permits the sizes of the goods stored to be changed by persons stocking the shelves without requiring reprogramming or adjustment of the data collection system.
Each of the inventory stations 16, 18, 20 and 22 includes paddle 26 which pushes the goods stored to the front of the shelf as goods are purchased. Paddle 26 typically rides along track 28, on which can goods 24 may be positioned. Paddle 26 and track 28 may collectively be called pushers. Conventional pushers include a flat spring, coiled in paddle 26 and fixed at one end to the forward shelf edge 29 of track 28. Although the pushers may be provided separately from multistation monitor 24, it may be preferable to join each track 28 to multistation monitor 24 to improve the stability of both the inventory stations, that is the pushers and associated gear, and monitor 24. As discussed above, not all stations need be populated with pushers.
A typical multistation unit 13 may typically use the same type of monitor station mechanism for each inventory station. For ease of disclosure, four different types of monitor station mechanisms will be described on a single multistation unit.
Station 16 utilizes a continuous loop encoder 30 which rotates freely about forward and rearward rotation wheels 32 and 34 which are mounted for rotation at forward shelf edge 29 of track 28 and on multistation monitor 13 at monitor station 63, respectively. Wheels 32 and 34 may be positioned within or below track 28 and/or monitor 13 if convenient. Continuous loop encoder 30 is fixed to paddle 26 by anchor point 36 so that loop 30 rotates counterclockwise and clockwise as paddle 26 move forward and back indicating a decrease or increase in the number of can goods in inventory on station 16.
Referring now to
Referring now to
Although shown in the top view as extending through encoder strip 40, bars 42 and 44 may be formed on one vertical surface only. For example, black lines printed on one side of a transparent strip. As encoder strip 40 is caused to move forward or back as a result of motion of paddle 26, one of the photo detectors will sense the transition between transparent and non-transparent bars before the other photo detector. As a result, electronic circuitry, such as detector circuit 50, may be used to generate pulses as a result of the movement of encoder strip 30 and also detect whether the motion is related to the addition or removal of inventory.
Referring now again to
Alternately, LED 47 may be positioned adjacent outside guide 62 while photo detectors 46 and 48 are positioned adjacent inside guide 60. Further, outside guide strip 52 may be guided by other turning guides and the LED and photo detectors mounted adjacent a straight section of strip 52 before or after the change in direction. Turning guides 60 and 62 must be configured to permit illumination from LED 47 to pass through (or optionally be reflected by) encoder strip 52 to reach photo detectors 46 and 48.
Still further, position detector 38 may be used without turning guides so strip 52 unwinds from coil 54 and travels in a straight line to anchor 36. This configuration requires that the width of monitor housing 66 accommodate both position detector 38 and coil 54. It is usually preferable to reduce the width of monitor housing 66 to maximize the room for inventory on the shelf, along track 28.
Encoder strip 52 may conveniently be a self coiling strip, that is, in an unrestrained state a major portion of encoder strip 52 forms itself into coil 54 which may be easily mounted or demounted from pin 56. Such strips, currently made without non-transparent bars, are made of a high quality, coiled roll of plastic film and are available, for example, from Spring-Roll LLC in Winder, Ga. Contrasting stripes or bars may be printed directly on the Spring-Roll coiled roll or added to the coiled roll by another layer of plastic. When unrolled, at least a substantial portion encoder strip 52 will return to its original compact coiled shape, shown as coil 54.
Forward end 58 of encoder strip 52 is configured to be anchored to paddle 26 at anchor 36 as shown for example in station 18 of
Coil 54 has a central opening permitting it to be easily slipped onto pin 56 so that coil 54 freely rotates about pin 56 when forward end 58 is not anchored. If preferred, coil 54 may be fixed to pin 56 so that it cannot slip out of place. Turning guides 60 and 62 permit coiled encoder strip 52 to be easily mounted on pin 56 and threaded through the guides for attachment to anchor 36. Monitor station 64 includes a pair of turning guides 60 and 62 and pin 56.
Alternately, pairs of inventory and monitor stations may be configured to detect the position, or changes in position of paddle 26 along track 28 by changes in resistance or capacitance. For example, a thick film resistor may be positioned along track 28, along the flat coiled spring in each pusher, or along the shelf on which the multistation monitor is mounted and changes in the position of paddle 26 may be detected as a result of changes in the relationship between the thick film resistor and a fixed or moving contact. Similarly, the capacitance of the coiled portion of the flat spring in the pusher, or the capacitance between a fixed capacitance plate and a moving capacitance plate, one of which have a varying plate area, may be used to detect the position or changes of position of the paddle 26 with respect to track 28.
Multistation unit 13 may include monitor housing 66 being conveniently molded from a plastic and include a plurality, such as six, monitor stations molded thereon. Electronic circuitry 50, a portion of which is shown in
In this way, multistation unit 13 will have a plurality of monitor stations, such as stations 63, 64, 74 and 80 not all of which are activated. Each monitor station may be activated by aligning an inventory station, such as station 18, including track 28 and paddle 26, in front of that monitor station, slipping coil 54 of encoder strip 52 over post 56 and attaching forward end 58 to anchor 36. As a result, once multistation unit 13 is positioned on an inventory shelf it may be configured, and easily reconfigured, for a different number of monitor stations up to the maximum number of stations available on monitor housing 66, depending upon the sizes of the goods to be stocked or for other reasons.
Similarly, encoder strip 52, if damaged or to be reconfigured or updated, may easily be removed by unhooking strip 52 from paddle 26, allowing strip 52 to coil as much as it will coil and removing coil 54 from pin 56 and turning guides 60 and 62. Thereafter station 64 may be re-activated by simply installing another encoder strip 52 as described above. It is important to note that installation of multistation unit 13, together with one or more of the stations 16, 18, 20 and 22, is no more complex than the installation of conventional pushers. The only additional steps required for the activation of particular monitoring stations is the insertion of self coiling encoder strip 52, and connection of leading end 58 to the appropriate pusher and connection of the appropriate communication systems. These tasks do not require substantial special training or experience so that they can easily be handled by the staff normally used to stock and restock inventory shelves.
Referring now to
If more than one monitor station uses a target 76 for motion detection, the light reflected from any such target may be distinguishable from the light reflected from other pushers by differently shaped or sized reflecting blades of rotating target 77. For example, the relatively wide pulses from a wide bladed version of fan 77 may be distinguished from the relatively narrow pulses of a narrow bladed version of fan 77. The distinguishable widths of pulses should be greater than the differences in pulse width resulting from the normal motion of paddle 26. When using multiple stations with rotation it may be desirable to use a single light source, such as source 72, to illuminate targets on more than one station and or a single position detector to detect the reflected light from more than one station.
Referring now again to
Laser range finder 82 is aimed at target 84 at the rear of paddle 26. Monitor station 82 may include circuitry to provide pulses to electrical circuitry 50 for compatibility with other types of monitor stations or provide a digital or analog output reflecting the absolute distance to target 84 for use by electronic circuitry 50.
Multistation unit 13 includes a pair of communication connectors 68 which may be connected via cables 70 to other multistation units, such as unit 14, a portion of which is shown. A daisy chain of units may be connected in this way. Power may be provided from a central source to each daisy chain via cables 70 or individually to each unit. One end of the daisy chain is connected directly, or wirelessly, to a computer or computer network which includes software for converting the outputs of all the monitor stations into useful data related to inventory. For example, the software may count the pulses, and determine the sense, of the signals provided by the daisy chain of multistation units. Alternately, a hardware pulse counter may be provided between the daisy chain of units and the software to do this task, or circuitry 50 provided in each multistation unit could perform this task.
In certain applications, such as grocery or other stores with multiple isles, one or more daisy chained groups of multistation units, such as those along different shelves of an isle may be separately connected wirelessly to a main network to minimize installation costs and complexities. The main network may provide all processing needed for inventory control purposes using the signals from all monitor stations or transmit the raw or partially processed data to a central computer, perhaps via the Internet, for further processing, display or control.
The signals for all monitor stations within each multistation unit may conveniently be assigned to a designated channel or port so that the inventory data from each monitor station may be distinguished. In a daisy chained configuration, the most upstream unit, that is the multistation monitor closest to the computer collecting the data, may provide a sufficient number of separate channels or ports to carry data from all downstream units. Conventional circuitry, based for example on RS 232 standards, may be used to provide up to 256 separate channels. Conventional circuitry based on other standards, such as RS 485, may be used to provide a greater number of channels. Packet addressing may also be used to distinguish data from different monitor stations by adding a unique coding as an address header for each group of data sent.
The frequency of occurrence of the data is relatively low, even when shelves are being stocked so that a variety of conventional techniques may be used to forward, and distinguish, the relative position changes of each of a large number of pushers. One further piece of information for each pusher is required and may be changed whenever the inventory is relocated on the shelves. Whenever the motion to be detected from a particular pusher for a single can or other type of goods is changed, this knowledge must be made available to the system so that the particular number of pulses representing one can will properly be identified. In some applications, such as chains of stores where the arrangements of the goods on the shelves is centrally controlled, the type of goods on each pusher may be dictated centrally so that the person stocking the shelf follows a printed list provided by computer. The number of pulses representing a particular type of goods may be entered in a large database.
In other applications, such as those where the inventory arrangement is not controlled centrally, or changes rapidly, circuitry 50 may include an operating mode in which the circuitry or central computer learns the number of pulses related to a single item. This may be accomplished simply by causing the monitor unit to enter a learning mode and adding or removing a single item. Similarly an alarm or notification mode may be automatically entered whenever an item is added or removed outside of predefined parameters. That is, once the number of pulses representing a single item is accurately known by the system, an alarm may be raised when more than a predetermined number of items is removed from a shelf. This mode may be particularly useful in identifying shoplifters who often sweep the shelves by grabbing as many items at a time as possible. Similarly, the person stocking the shelves may be notified, perhaps at the end of the day when returned items are restocked, that an item of a different size than expected was added to a shelf.
Although many different embodiments have been described herein, many additional variations may made without departing from the spirit or scope of the inventions described herein which are identified in the appended claims.
|Cited Patent||Filing date||Publication date||Applicant||Title|
|US4419734 *||Jan 9, 1981||Dec 6, 1983||Indata Corporation||Inventory control system|
|US4742936 *||Jul 9, 1987||May 10, 1988||The Display Equation, Inc.||Dispensing device with numerical indicator for inventory control|
|US5553079 *||Mar 30, 1995||Sep 3, 1996||Hitachi Denshi Kabushiki Kaisha||Radio communication apparatus and method for multiplex transmission of voice and data signals|
|US5671362 *||Apr 4, 1995||Sep 23, 1997||Cowe; Alan B.||Materials monitoring systems, materials management systems and related methods|
|US5818336 *||Jan 4, 1996||Oct 6, 1998||Skywire, Llp||Drop box inventory monitoring and control system|
|US5881910 *||Aug 17, 1997||Mar 16, 1999||Advertising Display Company||Numerical inventory control device|
|US6105004 *||Apr 17, 1997||Aug 15, 2000||Eldat Communication, Ltd.||Product monitoring system particularly useful in merchandising and inventory control|
|US6269342 *||Mar 20, 1998||Jul 31, 2001||Telxon Corporation||Programmable shelf tag system|
|US6349244 *||Jun 9, 1999||Feb 19, 2002||The Coca-Cola Company||Cooler inventory management system|
|US6539280 *||Apr 11, 2000||Mar 25, 2003||Carl A. Valiulis||Merchandising method and apparatus|
|US6684126 *||Jan 12, 2001||Jan 27, 2004||Tosho, Inc.||Medicine storage apparatus|
|US6693539 *||Nov 29, 2000||Feb 17, 2004||Checkpoint Systems, Inc.||Inventory system using articles with RFID tags|
|US6752277 *||Aug 20, 2002||Jun 22, 2004||Masters Of Branding, Inc.||Product display system using radio frequency identification|
|US6990317 *||May 28, 2002||Jan 24, 2006||Wireless Innovation||Interference resistant wireless sensor and control system|
|US20030182193 *||Oct 1, 2002||Sep 25, 2003||Fujitsu Limited||Method of and device for shelf inventory tracking, and computer product|
|US20030216969 *||Jan 23, 2003||Nov 20, 2003||Bauer Donald G.||Inventory management system|
|US20050086133 *||Jan 8, 2004||Apr 21, 2005||Scherer William H.||System and method for sensing and analyzing inventory levels and consumer buying habits|
|US20050161420 *||Feb 1, 2005||Jul 28, 2005||Rtc Industries, Inc.||Product securement and management system|
|US20050168345 *||Feb 3, 2004||Aug 4, 2005||Rtc Industries, Inc.||System for inventory management|
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US7389886||Jul 6, 2006||Jun 24, 2008||Rtc Industries, Inc.||Product securement and management system|
|US7451881||Mar 13, 2007||Nov 18, 2008||Rtc Industries, Inc.||Product securement and management system|
|US7497341||Nov 26, 2007||Mar 3, 2009||Rtc Industries, Inc.||Product securement and management system|
|US7621409||Sep 20, 2007||Nov 24, 2009||Rtc Industries, Inc.||Product securement and management system|
|US7661545 *||Feb 1, 2005||Feb 16, 2010||Rtc Industries, Inc.||Product securement and management system|
|US7669722||Mar 3, 2009||Mar 2, 2010||Rtc Industries, Inc.||Product securement and management system|
|US7768399||Dec 5, 2005||Aug 3, 2010||Inventory Systems Gmbh||Holder for at least one object|
|US7792711 *||Feb 3, 2004||Sep 7, 2010||Rtc Industries, Inc.||System for inventory management|
|US8047385||Nov 1, 2011||Rtc Industries, Inc.||Product securement and management system|
|US8113360 *||Sep 29, 2008||Feb 14, 2012||Carl Olson||Product shelf divider system and method|
|US8113601 *||Jul 1, 2009||Feb 14, 2012||Rtc Industries, Inc.||Product securement and management system|
|US8136682||Sep 23, 2011||Mar 20, 2012||Rtc Industries, Inc.||Product securement and management system|
|US8210363||Sep 23, 2011||Jul 3, 2012||Rtc Industries, Inc.||Product securement and management system|
|US8235222||Jan 27, 2011||Aug 7, 2012||Rtc Industries, Inc.||Product securement and management system|
|US8235227 *||Aug 7, 2012||Rtc Industries, Inc.||Product securement and management system|
|US8240486||Mar 5, 2010||Aug 14, 2012||Southern Imperial, Inc.||Retail merchandise hook|
|US8260456 *||Mar 25, 2009||Sep 4, 2012||Fasteners For Retail, Inc.||Retail shelf supply monitoring system|
|US8312999 *||Jun 8, 2007||Nov 20, 2012||Rtc Industries, Inc.||Product management display system with trackless pusher mechanism|
|US8321304 *||Aug 6, 2008||Nov 27, 2012||Ferveo Technology||Stocked product sensing system|
|US8413823||Apr 9, 2013||Rtc Industries, Inc.||Product securement and management system|
|US8428774||Jun 4, 2009||Apr 23, 2013||Checkpoint Systems, Inc.||Apparatus and method for single unit access display|
|US8439208||Jul 10, 2012||May 14, 2013||Southern Imperial, Inc.||Retail merchandise hook|
|US8443988||Mar 4, 2010||May 21, 2013||Southern Imperial, Inc.||Alarm sounding retail display system|
|US8550262 *||Aug 3, 2011||Oct 8, 2013||Rtc Industries, Inc.||Product management display system with trackless pusher mechanism|
|US8676377||Aug 28, 2012||Mar 18, 2014||Fasteners For Retail, Inc.||Retail shelf supply monitoring system|
|US8727179 *||Oct 1, 2010||May 20, 2014||Rtc Industries, Inc.||Merchandise dispensing apparatus providing theft deterrence|
|US8788091||Oct 14, 2010||Jul 22, 2014||Giraffx Design, LLC||Dispenser for product packages|
|US8812378||Jul 29, 2011||Aug 19, 2014||Rtc Industries, Inc.||System for inventory management|
|US8823355||Feb 19, 2010||Sep 2, 2014||Inventory Systems Gmbh||Feed device for the automatic shifting of objects and method for detecting a movement of a feed unit in a feed device|
|US8938396 *||Sep 7, 2010||Jan 20, 2015||Rtc Industries, Inc.||System for inventory management|
|US8941495 *||Jun 11, 2012||Jan 27, 2015||Checkpoint Systems, Inc.||Wireless shelf pusher activity detection system and associated methods|
|US9129494||Dec 13, 2012||Sep 8, 2015||Southern Imperial, Inc.||Alarming pusher system|
|US9131787 *||Jun 26, 2013||Sep 15, 2015||Process Retail Group, Inc.||Merchandising unit and system|
|US20050161420 *||Feb 1, 2005||Jul 28, 2005||Rtc Industries, Inc.||Product securement and management system|
|US20100036754 *||Feb 11, 2010||Farrukh Khan||Stocked product sensing system|
|US20110017763 *||Oct 1, 2010||Jan 27, 2011||Colelli Robert P||Merchandise dispensing apparatus providing theft deterrence|
|US20110055103 *||Sep 7, 2010||Mar 3, 2011||Rtc Industries, Inc.||System for Inventory Management|
|US20110284488 *||Nov 24, 2011||Rtc Industries, Inc.||Product management display system with trackless pusher mechanism|
|US20130002422 *||Jun 11, 2012||Jan 3, 2013||Checkpoint Systems, Inc||Wireless shelf pusher activity detection system and associated methods|
|US20140001132 *||Jun 26, 2013||Jan 2, 2014||Process Retail Group, Inc.||Merchandising Unit and System|
|US20140353265 *||May 22, 2014||Dec 4, 2014||Vulcan Spring & Mfg. Co.||Illuminated Merchandise Dispenser|
|WO2005074563A2 *||Feb 2, 2005||Aug 18, 2005||Michael Alvin Lembke||System for inventory management|
|WO2005074635A2 *||Feb 2, 2005||Aug 18, 2005||Rtc Ind Inc||Product securement and management system|
|WO2014011618A2 *||Jul 9, 2013||Jan 16, 2014||Checkpoint Systems, Inc.||Item pusher apparatus with channel-based shuttle displacement detection and associated methods|