BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates generally to dry marker erasers. Specifically, the invention relates to a dry marker eraser having a reusable body and a disposable cleaning sheet removably attached to the body, and to a dispenser for the disposable cleaning sheets.
2. Description of the Related Art
Dry marker erasers have been used for many years to remove multiple color markings from white boards. Conventional handheld felt dry marker erasers are very similar in size to the standard chalkboard type erasers. Such erasers are often supplied for use in cleaning markings off of the whiteboard in order to prepare the whiteboard for another set of markings.
A problem with conventional dry marker erasers is that after several uses, the user often finds the eraser consumed or saturated with the residue from erased dry markings, such that the eraser is ineffective to remove any more markings. Unlike chalkboard dust, the user cannot simply pat off enough the residue to make the eraser effective again.
As a result of this problem, the user must periodically seek out a new eraser, usually in the midst of a presentation. The search for a new eraser tends to disrupt the presentation of the user, as well as limiting the time the user has to make his/her presentation. The following references provide examples of the conventional dry marker type erasers.
U.S. patent Publication No. 2001/0024720 describes a dry eraser member for receiving and releasably retaining a marking composition. U.S. patent Publication No. 2002/0083964 describes a cleaning tool, such as a mop head or cleaning mitt, that uses multiple cleaning sheets, such that as each sheet is used, it is removed, and a replacement sheet is uncovered, ready for the next use.
U.S. patent Publication No. 2002/0104180, describes a whiteboard eraser having a continuous roll cleaning sheet for quickly providing a fresh cleaning area. The publication describes, in FIG. 2, a prior art dry marker eraser having a removable sheet attached by hook and loop fasteners to a case.
U.S. patent Publication No. 2002/0106478 describes a cleaning sheet that provides scouring or scraping properties without the use of abrasive particles. U.S. patent Publication No. 2002/0176735 describes a simplified device for wiping and cleaning dirty surfaces. The device has a carrier body for a wiping element and, as an improvement, by using the device, it is more easily possible to remove dirt particles that are adhering to a surface to be cleaned, without any damage to the surface caused by excessive moisture.
U.S. patent Publication No. 2003/0003832 describes an improved cleaning sheet that effectively removes and retains particulate material from surfaces, while being thick enough and strong enough to withstand the rigors of a typical household cleaning process, even without the incorporation of a polymeric net or scrim material in the structure of the cleaning sheet. U.S. Pat. No. 2,739,334, issued to Hardey, describes cleaning, dusting, and polishing devices which include a resilient pad forming a backing for a removable covering material.
U.S. Pat. No. 2,916,759, issued to Smith, describes a cleaning tool provided with an accessory for detachably connecting a dusting cloth to the head thereof. U.S. Pat. No. 4,207,646, issued to Osborne, describes a chalkboard eraser in which a first portion of the working surface is used for erasing and a second portion is used for storage of chalk dust.
U.S. Pat. No. 4,720,888, issued to Menz, describes a hand held wiping/cleaning pad gripping device and to which pad the various dry or solvent soaking solutions can be readily applied, and which are used in the various phases of film processing, proof production, printing plate processing, press roller cleaning, and related type of operations.
U.S. Pat. No. 4,991,250, issued to Young, describes a dual-purpose cleaning device, which can be used for wet/damp mopping when a wiping/polishing sheet is not attached or, alternatively, with such a sheet attached, can be used for wiping or polishing of a surface. U.S. Pat. No. 5,432,973, issued to Wagner et al., describes a an eraser which can be used by itself and without any accompanying components, and also to an eraser which can hold one or a plurality of markers, so that the user can manipulate the eraser and the marker or markers as a unit, and change from one marker to another marker of different color quickly, thereby avoiding a disconcerting and attention-interrupting break in presentation by the dry board user.
U.S. Pat. No. 5,836,038, issued to Thorp, describes a dry marker eraser including a rigid support member having a layer of non-abrasive material attached to the bottom surface thereof and a strip of magnetic material attached to the top surface thereof. U.S. Pat. No. 5,930,920, issued to Arnold, describes a golf club wiping and cleaning device positioned, by clipping, onto the upper sidewall of a golf shoe in a position for wiping the club's face.
U.S. Pat. No. 6,007,891, issued to Davis et al., describes a message board having a frame adapted to receive and firmly retain various accessories in a convenient manner. U.S. Pat. No. 6,048,121, issued to Carver, describes a dry marker and eraser system the uses a small-scale eraser attached to a marker for making minor erasures without accidentally erasing larger portions of the white board.
U.S. Pat. No. 6,202,250, issued to Kenmochi et al., describes a rectangular wiping sheet adapted to be attached to a rectangular plate-like head which is, in turn, combined with a stick mounted on a top surface of the plate-like head to form a cleaner device used to clean a surface of floor or the similar surfaces, wherein the wiping sheet is provided adjacent a pair of sides thereof extending in parallel to each other with a plurality of slits extending through a thickness of the wiping sheet and each of the slits has a length of 5.about 0.30 mm as measured in a direction along the pair of sides.
U.S. Pat. No. 6,347,898, issued to Rhodes et al., describes a dry erase marker eraser having a flexible tubular sleeve with internal ribs. U.S. Pat. No. 6,367,115, issued to Frazier, describes a white board eraser provided for removal of ink dust and conditioning of white boards. The eraser has a plurality of treated layers of fabric which are used to clean and condition a white board and which are removed one at a time to present a new layer for use.
W.I.P.O. Patent Document No. WO 90/05478, published May, 1990, illustrates a device for cleaning floors by attaching floor cleaning cloths to footwear. The floor cleaning cloths are generally strips of fabric mechanically adhered to the soles of shoes. Japanese Patent No. 6-183196, published July, 1994, illustrates a continuous roll of white board eraser sheets, provided in a dispenser. Each sheet is individually dispensed, used, and discarded.
German Patent No. 4,321,596, published January, 1995, illustrates a fastening system for a cleaning cloth of a mop. The system allows the attachment of the cleaning cloth to the mop in a desired position and tension.
Japanese Patent No. 9-188097, published July, 1997, illustrates a white board eraser having a magnet for maintaining the eraser to the white board by magnetic attraction. Japanese Patent No. 2002-144791, published May, 2002, illustrates an eraser for a white board and blackboard. The eraser has a hollowed out portion, wherein a removable cleaning part fits therein.
None of the above inventions and patents, taken either singly or in combination, is seen to describe the instant invention as claimed. Thus a disposable dry marker eraser solving the aforementioned problems is desired.
SUMMARY OF THE INVENTION
The disposable dry marker eraser for erasing markings from whiteboard has an eraser body in the shape of a rectangular block. The bottom surface of the eraser body may be coated with adhesive, or it may have a hook fabric fastener affixed thereto. Disposable cleaning sheets are provided which are made from a pile type material which releasable attaches to either the adhesive coating or the hook fabric fastener. The dry marker eraser is packaged in a rectangular dispenser box having an open top and a pair of U-shaped cutouts defined in the opposing sides, the dispenser box being dimensioned so that the cleaning sheets lie in a vertical stack and the eraser body fits on top of the stack to align the top cleaning sheet with the bottom of the eraser body, the cutouts enabling the user to grasp the side surfaces of the eraser body while applying pressure to attach the cleaning sheet to the eraser body.
Accordingly, it is a principal object of the invention to provide a dry marker eraser.
It is another object of the invention to provide a dry marker eraser having removable cleaning sheets.
It is a further object of the invention to provide a dry marker eraser having a plurality of removable cleaning sheets provided in a dispenser box.
Still another object of the invention is to provide a disposable dry marker eraser with a plurality of disposable cleaning sheets packaged in a dispenser box which aligns the cleaning sheet with the bottom surface of the reusable eraser body to properly apply the cleaning sheet.
It is an object of the invention to provide improved elements and arrangements thereof for the purposes described which is inexpensive, dependable and fully effective in accomplishing its intended purposes.
These and other objects of the present invention will become readily apparent upon further review of the following specification and drawings.