|Publication number||USRE39144 E1|
|Application number||US 10/022,867|
|Publication date||Jun 27, 2006|
|Filing date||Dec 14, 2001|
|Priority date||Aug 14, 1998|
|Also published as||US6005306|
|Publication number||022867, 10022867, US RE39144 E1, US RE39144E1, US-E1-RE39144, USRE39144 E1, USRE39144E1|
|Inventors||Andrew M. Pickard|
|Original Assignee||Pickard Andrew M|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (21), Non-Patent Citations (2), Referenced by (3), Classifications (19), Legal Events (2)|
|External Links: USPTO, USPTO Assignment, Espacenet|
The present invention pertains to a wireless remote control door lock system, particularly adapted for residential entry and exit doors, for example.
The development of wireless remote control locks for motor vehicles and the development of wireless remote controls for operating residential and commercial garage doors has led to substantial improvements in the conveniences and security afforded in everyday life to persons living in both urban and rural settings. However, the improvements realized through the use of wireless remote controlled vehicle door locks and wireless remote control operators for residential and commercial garage doors have not been transferred to or adapted for use with residential entry and exit doors, for example. Accordingly, the conveniences and increased personal security that persons enjoy when entering a motor vehicle or when operating a garage door, for example, have not been available to entry and exit from a person's residence, office or other place of occupancy.
There are many instances when remote control of a pedestrian door is a residence, office or other building entry is desirable. With conventional key locks, for example, it is difficult to lock or unlock the door in poor lighting conditions. Children and elderly persons often have difficulty in manipulating keys and key operated locks. Moreover, it is often desirable to be able to lock or unlock a door from a distance during inclement weather or when a person's hands are occupied when approaching a door, such as when carrying various articles. Further, it is desirable for security purposes to be able to remotely control locking and unlocking of a door from relatively close proximity to the door. Still further, the development of suitable remotely controllable personnel entry and exit doors for residential as well as commercial buildings has also been at least somewhat retarded by the lack of a suitable system which can be easily retrofitted to existing structures as well as easily fitted to new buildings while such are being constructed.
It is to these ends that the present invention has been developed.
The present invention provides a wireless remote controlled lock system, particularly adapted for personnel entry and exit doors for residential as well as commercial buildings.
In accordance with one aspect of the present invention a remote control door lock system is provided which utilizes a wireless signal transmitter and receiver combination and which may be easily adapted to buildings during new construction or retrofitted to existing buildings to provide a suitable remotely controllable system.
In accordance with another aspect of the present invention a remote control door lock system has been developed wherein a door latching mechanism may be easily fitted with an electrical power operated striker plate assembly which is connected to a control unit including a wireless signal receiver. In this way, existing doors may be conveniently retrofitted with the remote controlled lock system and doors in newly constructed buildings may also be fitted, conveniently, with the lock system including the power operated striker plate assembly.
The remote controlled lock system of the present invention is also advantageously adapted to be connected to a conventional residential or commercial building AC electric power distribution system. In this regard, the system of the invention includes a control unit including a rectifier for converting AC electrical power to low voltage DC electrical power. The control unit also includes control relay means which provide, in accordance with a signal received by the wireless receiver, for operation of a low voltage DC power operated movable lock striker plate member for momentary unlocking of a door or continuous unlocking of the door, as selected by an operator of the lock system.
The present invention advantageously utilizes commercially available radio frequency range transmitter and receiver devices and wherein the transmitter device may be easily incorporated in a key ring fob or the like and conveniently carried by a person desiring access to a particular door.
Those skilled in the art with further appreciate the features and advantages of the remote controlled door lock system of the present invention together with other superior aspects thereof upon reading the detailed description which follows in conjunction with the drawing.
In the description which follows like parts are marked throughout the specification and drawing with the same reference numerals, respectively. The drawing figures are not necessarily to scale and conventional symbols are used in the schematic diagrams to illustrate certain components.
Clearly, it is advantageous for persons having authorization to enter and exit the structure 10 to be able to remotely control locking and unlocking of the door 11 for convenience, such as when such persons are carrying various objects, and for personal security reasons. Typically, it is be advantageous to control operation of locking and unlocking the door 11 from a distance of as much as 100 feet to 150 feet away. This distance is within the operating range of certain categories of small, hand-held, battery operated radio frequency transmitter devices. Other wireless signal transmitting and receiving devices, including infrared signal transmitters and receivers and the like are contemplated with respect to transmitter and receiver parts of the lock system of the present invention.
Referring primarily to
The striker plate assembly 14 is connected to a control unit 21.
Referring now to
Referring further to
Referring further to
Relay 40 includes two operable contactors 40a and 40b and relay 42 includes one operable contactor 42b. When a suitable signal is transmitted from the transmitter unit 36 to the receiver 32, internal switch means 32f within the receiver and connected to terminal 32e closes momentarily and connects the switch 44 and the relay 40 to ground for a predetermined time period, such as, for example, approximately 3.5 seconds. With terminal 32e effectively connected to ground, current flows through relay 40 causing contactor 40b to move to the alternate position from that shown in
However, if the transmitter 36 is activated a second time by operation of one of either switch 37a or 37b, internal switch means 32g within the receiver 32 and operably connected to terminal 32d closes momentarily causing relay 42 to move contactor 42b to the alternate position shown in
The alternate position of switch 44 may be selected by a user of the door lock system by operating the switch actuator 44c suitably mounted on the control unit 21. When the receiver 32 receives a signal from the transmitter unit 36, switch means 32f is momentarily closed as mentioned previously, for about 3.5 seconds, for example, energizing relay 40 to move the contactors 40a and 40b to the alternate positions shown in FIG. 3 and energizing the striker assembly 14 to allow the striker 18 to unlock the door. However, since the switch 44 is in the alternate position, the relay 40 will not latch but will remain energized only as long as the switch means 32f is closed.
Accordingly, the door lock system of the present invention provides alternate operating modes wherein a door 11 associated with the lock system may remain unlocked unless commanded to be relocked or the door remains unlocked for only a sufficient amount of time to quickly open the door and exit or enter the building 10 or any structure associated with a door and the door lock system according to the invention.
The installation and operation of the door lock system of the present invention is believed to be readily understandable to those skilled in the art from the foregoing description. The striker assembly 14 may be easily retrofitted to existing door jambs by replacing conventional fixed striker plates with the striker assembly 14 and by connecting the striker assembly to the control unit 21 which may be mounted either within a wall space as illustrated, or on the interior surface thereof. In either case it is convenient to place the enclosure 23 in such a position that access to the actuator 44c for the switch 44 may be easily obtained to select the working position of the switch and control unit 21. The transmitter unit 36 may include additional operating controls, not shown, such as controls for operating a garage door opener or controls for locking and unlocking the doors of a motor vehicle. Moreover, the transmitter unit 36 and the receiver 32 may be adapted to provide for a so-called rolling transmission code to prevent unauthorized operation of the control unit by a person gaining access to the code transmitted by the transmitter unit 36 at any one transmission event.
Although a preferred embodiment of the invention has been described in detail herein those skilled in the art will recognize that various substitutions and modifications may be made to the lock system disclosed without departing from the scope and spirit of the appended claims.
|Cited Patent||Filing date||Publication date||Applicant||Title|
|US4453161 *||Jun 4, 1982||Jun 5, 1984||Lemelson Jerome H||Switch activating system and method|
|US4573046 *||Nov 1, 1983||Feb 25, 1986||Universal Photonics, Inc.||Watch apparatus and method for a universal electronic locking system|
|US4763121 *||Aug 11, 1986||Aug 9, 1988||Nissan Motor Company, Limited||Keyless entry system for automatically operating automotive door locking devices without manual operation|
|US4794268 *||Jun 19, 1987||Dec 27, 1988||Nissan Motor Company, Limited||Automotive keyless entry system incorporating portable radio self-identifying code signal transmitter|
|US4970494 *||Nov 20, 1989||Nov 13, 1990||Keely William A||Radio controlled home security system|
|US4996525 *||Nov 24, 1989||Feb 26, 1991||The United States Of America As Represented By The Secretary Of The Navy||R. F. lockout circuit for electronic locking system|
|US5107258 *||Sep 30, 1988||Apr 21, 1992||Rene Soum||Wireless remote control high security system permitting the opening or theft-proof closing of relays actuating systems such as locks|
|US5437174 *||Nov 17, 1992||Aug 1, 1995||David Sokol||Retrofittable electronic and mechanical door lock system|
|US5477213 *||Oct 29, 1993||Dec 19, 1995||Zexel Corporation||Data input device for IC-key lock system|
|US5490698 *||Jul 5, 1994||Feb 13, 1996||Dezso; Paul M.||Door locking system|
|US5508692 *||Jul 29, 1994||Apr 16, 1996||Siemens Aktiengesellschaft||Central locking installation for a motor vehicle|
|US5625349 *||May 19, 1995||Apr 29, 1997||Intellikey Corporation||Electronic lock and key system|
|US5638056 *||Sep 13, 1994||Jun 10, 1997||Kabushiki Kaisha Toyoda Jidoshokki Seisakusho||Remote control apparatus|
|US5648764 *||Jul 31, 1992||Jul 15, 1997||Fujitsu Ten Limited||Apparatus for remotely controlling a door locking state and theft prevention alarm state of an automobile|
|US5650774 *||Nov 4, 1994||Jul 22, 1997||Clifford Electronics, Inc.||Electronically programmable remote control access system|
|US5699685 *||May 17, 1996||Dec 23, 1997||Kiekert Ag||Central lock system for an automotive vehicle with satellite processors at respective locks|
|US5729198 *||Oct 25, 1996||Mar 17, 1998||Gorman; Kim Ramsey||Wireless residential door unlatch system|
|US5852944 *||Apr 18, 1997||Dec 29, 1998||Stephen C. Cohen||Remotely controlled door lock|
|US5987818 *||Oct 21, 1998||Nov 23, 1999||Dabideen; Pooran||Remotely controlled door locking and opening system|
|US5990579 *||Apr 3, 1998||Nov 23, 1999||Ricci; Russell L.||Remote controlled door strike plate|
|US6112563 *||Oct 2, 1998||Sep 5, 2000||Ramos; Israel||Remote control locking device|
|1||*||Brochure, Weiser Lock, Powerbolt Home Access System, (C) 1997 Masco Building Products Corporation.|
|2||*||DeMaste, Sarah, "Remote Access Locksets Gain Wider Distribution," National Home Center News, Apr. 27, 1998, pp. 37-38.|
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US9024759||Mar 10, 2014||May 5, 2015||Kwikset Corporation||Wireless lockset with integrated antenna, touch activation, and light communication method|
|US20140113563 *||Oct 22, 2013||Apr 24, 2014||Kwikset Corporation||Electronic lock having hardware based multi-wireless profile detection and setting|
|US20170051530 *||Apr 29, 2015||Feb 23, 2017||Thomson Licensing||A Self-Contained Deadbolt Sensing Arrangement|
|U.S. Classification||307/117, 340/5.2, 307/116, 307/139, 340/5.7, 340/12.5|
|International Classification||G07C9/00, H01H35/00, E05B47/00|
|Cooperative Classification||Y10T307/937, G07C9/00182, G07C2009/00984, Y10T307/766, Y10T307/773, E05B47/0047, E05B2047/0094, G07C2009/00793|
|European Classification||G07C9/00E2, E05B47/00C2|
|Jul 5, 2007||REMI||Maintenance fee reminder mailed|
|Dec 23, 2007||LAPS||Lapse for failure to pay maintenance fees|