Chalkboard Cleaning Means, Chalk Or Eraser Holder, Or Chalk Dust Receiver Patents (Class 434/417)
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Patent number: 11312174Abstract: A single sweep eraser system allows cleaning of a whiteboard with a single, simple and rapid motion across the board. The system provides track brackets and glides that support a cleaning bar applying sufficient pressure to a cleaning pad extending the height of the board to provide broad area cleaning without the need for the user to “lean in” hard against the cleaning pad. The tracks conveniently hold the cleaning bar off to one side of the board for ready access.Type: GrantFiled: July 25, 2019Date of Patent: April 26, 2022Inventor: Caleb Dykema
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Patent number: 10092123Abstract: Apparatus for a visual reminder of surrendered burdens to God includes a wooden cross having first and second sides, where the wooden cross is configured to be viewable with at least one side visible. The apparatus further includes a plurality of paper notes configured to be inscribed upon by a user and be fastened to the at least one visible side of the wooden cross by a plurality of wrought iron nails.Type: GrantFiled: April 26, 2016Date of Patent: October 9, 2018Assignee: Rad Joy, LLCInventor: Richard Alan Drew
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Publication number: 20150024369Abstract: A handheld message board is provided. The message board includes a front portion and a back portion. The front portion may be made of an erasable writing surface, such as a chalk board or a dry-eraser board. The present invention may further include a handle attached to the back portion so that a user may easily grasp the handheld message board and write on the front portion. The handle includes a strap having a first end and a second end. The first end and the second end are attached to the back portion forming a loop in between to secure a user's hand.Type: ApplicationFiled: July 7, 2014Publication date: January 22, 2015Inventor: Damon Gabriel Brown
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Publication number: 20130295550Abstract: A reusable gift bag of the present invention includes a portion of the bag that can receive a temporary marking. Reusable gift bags for holding a gift therein can be re-used after the gift has been removed. The message receiving panels are reactive to a disappearing ink solution and accordingly can be repeatedly written on allowing the ink fade away to become invisible. Alternatively, without using a specific ink-receiving panel, the entire portion of the gift bag handbags may be made from materials which are reactive to a disappearing markers.Type: ApplicationFiled: May 7, 2012Publication date: November 7, 2013Inventor: LAKSHMI MULLAGURU
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Patent number: 8191197Abstract: The non-permanent marker board eraser apparatus provides a basic design and construction that exposes minimal moving parts to erasure debris. The two-spaced apart horizontal guide rails are u-shaped and open outwardly. The vertical traveling eraser sections are motor powered and provide for drive from either upper first guide rail or the lower second guide rail via a rubberized wheel that fits within either of the two guide rails. The control buttons provide for selective eraser marker board contact. Each board travel is accompanied by automatic eraser return to a rest position outside of or to the edge of the board's marking surface. Cleaning fluid is also dispensed through the erasers.Type: GrantFiled: April 22, 2010Date of Patent: June 5, 2012Inventor: Michael J. Hunsucker
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Publication number: 20110162163Abstract: The present invention wipes a writing board through areas. A teacher can wipe an area of a blackboard while writing on another area. Thus, a writing board can be flexibly used with convenience obtained and time saved.Type: ApplicationFiled: January 7, 2010Publication date: July 7, 2011Applicant: NATIONAL CENTRAL UNIVERSITYInventors: Shu-San Hsiau, Chi-Hsin Ho, Peng-Shin Lee, Po-Ting Pan, Chao-Hung Zeng, Yi-Fu Hsieh
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Patent number: 7934288Abstract: An eraser for use in erasing markings on boards, such as chalk boards and white boards, is provided. The eraser comprises a form-fitted finger element made from a knitted or felted fabric. The finger element consists of a tubular member that defines a longitudinally extending finger passage. The tubular member has one open end and one closed end. The open end is sized such that the finger of the eraser user is insertable through the open end, so that at least a portion of the finger is received within the finger element passage.Type: GrantFiled: October 9, 2007Date of Patent: May 3, 2011Inventor: Danielle Waldman
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Publication number: 20100255456Abstract: A hand-held dry-erase board system for efficiently storing a writing instrument in the handle of a portable dry-erase board. The hand-held dry-erase board system includes a frame including a writable surface, a handle, wherein the handle includes an upper end and a lower end and wherein the upper end of the handle is attached to the frame and a clip, wherein the clip is attached to the handle and wherein the clip secures a marker.Type: ApplicationFiled: April 2, 2010Publication date: October 7, 2010Inventor: Julia M. Rhodes
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Patent number: 7575334Abstract: A chalk holding device for marking up dry walled walls of a building uses a pole that has a chalk holder at one end wherein chalk is received within the holder and locked in place via a compression ring. The pole may be threadably attached to an additional extension pole on the end opposite the chalk holding end. A light source is attached to the pole either by clamping the light source and attaching the clamp to the pole via another clamp, via adhesion or welding, or other appropriate attachment method, or the light source is an LED ring such that the pole passes through a central opening of the LED ring with the ring attached to the pole.Type: GrantFiled: February 27, 2007Date of Patent: August 18, 2009Inventor: Mark C. Becnel
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Publication number: 20090092957Abstract: An eraser for use in erasing markings on boards, such as chalk boards and white boards, is provided. The eraser comprises a form-fitted finger element made from a knitted or felted fabric. The finger element consists of a tubular member that defines a longitudinally extending finger passage. The tubular member has one open end and one closed end. The open end is sized such that the finger of the eraser user is insertable through the open end, so that at least a portion of the finger is received within the finger element passage.Type: ApplicationFiled: October 9, 2007Publication date: April 9, 2009Inventor: Danielle Waldman
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Publication number: 20080199842Abstract: Disclosed is a dual density slide-on tray that includes a dual density elongate section. The dual density elongate section includes a thermoplastic base section that has an attachment side and a utility side. Also included in the dual density elongate section is a thermoplastic tray section that has a tray-section base. The thermoplastic tray section is attached at its tray-section base to the utility side of the thermoplastic base section. In this embodiment, the thermoplastic tray section is less dense or at least softer than the thermoplastic base section.Type: ApplicationFiled: February 21, 2007Publication date: August 21, 2008Applicant: Mooreco, L.P.Inventor: John C. Hardt
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Patent number: 6983919Abstract: An adjustable display device for computer monitors includes a pair of panels that are slidably connected together such that the display device has a compact configuration and a plurality of extended configurations. The slidability of the panels allows the display device to be adjusted to fit computer monitors of any size. The display device is supported on a computer monitor by a pair of hinges, one extending from each respective panel. The hinges allow the display device to rotate between stored and operative positions relative to the monitor.Type: GrantFiled: March 29, 2004Date of Patent: January 10, 2006Assignee: Adstracts, Inc.Inventor: Scott A. Kroggel
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Patent number: 6948210Abstract: An automated erasure system that is suitable for erasure of non-permanent markings from boards is disclosed. The boards being erased can be whiteboards (whether electronic or not) or other boards (e.g., chalkboards).Type: GrantFiled: September 26, 2002Date of Patent: September 27, 2005Inventor: Chirag Shah
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Patent number: 6944904Abstract: The present invention 10 discloses a chalkboard cleaning device that is mountable to a conventional chalkboard 12 providing means for selectively cleaning parts thereof. The present invention 10 is comprised of a rail 18 mounted to the top edge of an existing chalkboard 12 having the cleaning apparatus 20 attached thereto and extending from the top to the bottom edge of the board 12. The present invention 10 is comprised of an adjustable frame 30 and sponge 20 which is trimmed at the time of installation to fit the adjusted frame size. The frame 30 has a tensioned 40 rail 18 engaging element 27 for selectively moving the cleaning apparatus 20 to a desired point to be cleaned. Once positioned the apparatus 10 has a pump 26 and fluid containing reservoir 22 in communication with sponge 20 whereby pressure applied to the pump button 48 releases fluid 54 into the body of the sponge 20 whereupon movement of the cleaning apparatus by means of the handle 24 cleans the selected area.Type: GrantFiled: August 11, 2003Date of Patent: September 20, 2005Inventor: Gaylord A Williams
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Patent number: 6895627Abstract: A blackboard eraser including a cube having two semi-cylindrical grooves symmetrically arranged in a longitudinal direction therein, and a central brush atop an elevated surface formed between the two grooves. A longitudinal groove is defined underneath each of the send-cylindrical grooves, and equal-length side brushes, which are affixed to an inner surface of a lid, are respectively positioned in the longitudinal grooves. Two grooves are arranged adjacent to each end of the semi-cylindrical grooves, which provide for a shaft affixed to each end of a roller to dispose therein. The brushes and the rollers form the eraser, which are enclosed within a closed chamber between the lid and the two semi-cylindrical grooves. When erasing chalk dust from a blackboard, the chalk dust sticks to the rollers and is carried to the side brushes. The side brushes then wipes the dust, which falls into the closed chamber.Type: GrantFiled: February 2, 2004Date of Patent: May 24, 2005Inventor: Chieh-Jen Lin
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Patent number: 6370720Abstract: An automatic blackboard erasing apparatus reciprocates, or moves back and forth, horizontally on a blackboard. The automatic blackboard erasing apparatus incorporates a housing, right and left erasing elements each having one or more brushes and one or more wiper members, a variable contact element for controlling the contact state of the erasing elements relative to the blackboard, a washing liquid supplier for providing washing liquid between the brushes and the surface of the blackboard, and a controller for controlling the operation of the erasing apparatus. When the erasing apparatus traverses to the right of the blackboard to erase the blackboard, the left erasing element is in contact with the blackboard, and the right erasing element is not in contact with the blackboard. When the erasing apparatus traverses to the left of the blackboard to erase the blackboard, the right erasing element is in contact with the blackboard.Type: GrantFiled: April 8, 1999Date of Patent: April 16, 2002Inventor: Chang-ho Jang
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Patent number: 6266841Abstract: An automatic erasing device is used for erasing chalk marks on a writing board, and includes an erasing mechanism having an elongated housing disposed frontwardly of and slidable relative to the writing board along a longitudinal axis. The housing extends in a transverse axis relative to the longitudinal axis, and has a rear wall formed with an elongated rear opening to confront the writing board, and a lower portion formed with a water tank. An eraser unit is disposed within the elongated housing, and is biased to protrude outwardly and rearwardly of the rear wall via the elongated rear opening for abutting against the writing board. The eraser unit is connected to the water tank in such a manner that water flows from the water tank into the eraser unit so as to soak the eraser unit while the eraser unit moves on the writing board.Type: GrantFiled: April 19, 2000Date of Patent: July 31, 2001Assignee: Huey Yeau Co., LTDInventor: Ming-Pao Cho
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Patent number: 6139331Abstract: A board base provides a storage and display unit for a plurality of markable white erasable presentation panels. Such presentation panels can be used with erasable marker pens. The board base can display one presentation panel and store four additional presentation panels. The board base can be adapted to permit either first side removal, second side removal, or top side removal. Set screws are provided for releasably securing these members. Indicia, such as color coded or numbered tabs permit ready identification by the user, and provide an accessible manual gripping portion for removal of each presentation panel. In operation, a selected presentation panel is removed from the framework in the board base, and the presentation panel is inserted into a front presentation slot in the lower track member. The presentation panel is positioned flush with the front board for ease of marking and viewing.Type: GrantFiled: December 21, 1999Date of Patent: October 31, 2000Inventor: Mike C. Owen
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Patent number: 5957700Abstract: Writing boards such as electric blackboards which can erase all information written thereon without wiping the board by hand. On a front surface of an endless recording medium provided in the electric black board letters, characters, etc. are written with a writing tool. The writing tool uses an ink which is easily erasable with a cleaning liquid stored in a container. At the back surface of the recording medium, there is provided a cleaning instrument which faces the back surface of the recording medium. When all the writing is to be erased, an erasing switch is pushed. A pump is operated to move the recording medium, relative to the cleaning instrument. Thus, the cleaning liquid stored in the container circulates through tubes and the cleaning instrument and squeezes the cleaning liquid through an opening of the cleaning instrument to the recording medium.Type: GrantFiled: June 2, 1997Date of Patent: September 28, 1999Assignees: Ricoh Elemex Corporation, Ricoh CompanyInventor: Kenzo Ariyama
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Patent number: 5649828Abstract: A writing board system comprises a white board having a writing surface for receiving a written mark thereupon, a liquid tank filled with water liquid for erasing the written mark from the writing surface, an applicator for applying the liquid in the liquid tank onto the writing surface, and a writing implement having an ink including at least one electron donative coloring compound selected from the group consisting of 2-{2-[4-(dodecyloxy)-3-metoxyphenl]-ethenyl}quinoline, 3-cyclohexylamino-6-chlorofluoran, 3-diethyl amino benzo [a]-fluoran, 3-(4-diethylamino-2-etoxyphenyl)-3-(1-ethyl-2-methylindol-3-yl)-4-azaphtha lide, 3.3 bis(4-diethylamino-2-etoxyphenyle)-4- azaphthalide, and 3-cyclohexyl methyl amino-6-methyl-7-anilinofluoran, and an electron acceptive developing compound selected from the group consisting of zinc salicylate and bisphenol A.Type: GrantFiled: June 12, 1995Date of Patent: July 22, 1997Inventor: Kiyoharu Kawashima
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Patent number: 5607312Abstract: A writing board with an automatic erase device includes a frame, a driving roller and a supporting roller rotatably mounted on the frame in a parallel manner, an endless writing sheet trained around the driving and supporting rollers to form a front exposed writing surface and a back surface, a supporting board interposed between the front writing exposed writing surface and the back surface of the writing sheet for providing a fixed rigid supporting to the front exposed surface, and an erase device positioned behind the back surface of the writing sheet and mounted on the frame. The erase device includes at least an elongated eraser which is extended along a width of the writing sheet and is disposed in the touching with the back surface of writing sheet, so that a writing content on the front exposed writing surface can be erased by the eraser automatically when the writing sheet is rotated by the driving roller.Type: GrantFiled: January 13, 1995Date of Patent: March 4, 1997Inventor: Jie-Zhang Zhou
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Patent number: 5430965Abstract: A message display board includes: a writing board embedded on a base plate mounted on a fixing object such as a car, a pen clamped on a pen-holding portion formed on the base plate for writing purpose, a plurality of suction cups which are attached by vacuum on a wall such as a wind shield of a car to present the writing board outwardly to display message written on the writing board, a lamp secured on the base plate for illuminating the writing board to be visible at night time or in dark place, and an eraser detachably embedded in the base plate and being withdrawn from the base plate for erasing the message written on the board to prepare for the next use.Type: GrantFiled: March 8, 1993Date of Patent: July 11, 1995Inventor: Shih-Wang Lai
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Patent number: 5397091Abstract: A blackboard includes a rectangular board member, a protective frame member provided on each side of the board member, and a tray connected to a lowermost one of the frame members and movable between an unfolded position for receiving erasers and writing implements and a folded position. The lowermost one of the frame members has a front side which is formed with a longitudinally extending retaining portion that confines a longitudinally extending space which is substantially L-shaped in cross-section. The tray has a rear side wall which is formed with a transversely and longitudinally extending rearward anchor projection that is substantially T-shaped in cross-section and that has a head portion which extends into the space.Type: GrantFiled: April 2, 1993Date of Patent: March 14, 1995Inventor: Gwo-Nan Tsuar
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Patent number: 5163845Abstract: A portable, free-standing visual aid designed to be used by coaches, teachers and other group leaders. The invention incorporates a large chalkboard, a chalk tray, sliding, two-sided inserts, a storage pocket for the inserts, and a smaller storage pocket for other items. It has a handle for portability. Some models use releasable fasteners to hold a chalk holder and eraser.Type: GrantFiled: January 28, 1991Date of Patent: November 17, 1992Inventor: Carol L. Blassingame
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Patent number: 5131849Abstract: A board apparatus is arranged for educational presentation of inter-relationship relative to atomic particles and their associated energy levels relative to interaction of such particles, wherein the board structure includes a central ferrous metallic base plate formed with a perimeter framework accommodating a plurality of ferrous metallic discs to simulate atomic particles such as electrons and their interaction relative to one another. A modification of the invention includes a dispenser housing mounted to a first side of the framework and a container housing mounted to a second side of the framework to provide for the respective dispensing of the discs and the storage of writing instruments.Type: GrantFiled: October 4, 1991Date of Patent: July 21, 1992Inventor: John J. Perrero
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Patent number: 4941225Abstract: This invention relates to an automatic chalk-powder collecting device for blackboard eraser; it mainly comprises a body portion, two symmetrical side covers, a powder box, and a powder-collecting assembly. By means of the aforesaid structure and a one-way brake switch in the powder-collecting assembly, the rollers of this invention are controlled to rotate in one direction only. When the present invention is erasing a blackboard back and forth same as a conventional eraser does, the chalk powder on the rubbing cloth can be cleaned automatically and simultaneously. It is deemed that the present invention has greatly improved the drawbacks of the conventional eraser, which must be beaten or cleaned repeatedly in use to cause a lot of powder flying in the air.Type: GrantFiled: November 13, 1989Date of Patent: July 17, 1990Inventor: Su-Land Liao
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Patent number: 4872237Abstract: A chalk dust remover is disclosed to remove the chalk dust which has accumulated on the surface of a chalk board cleaner. The device has a housing, a perforated support member, and a sheet of porous, open cell foam material which extends over the support member and is attached to the housing. The chalk board cleaner is rubbed over the foam material which causes the chalk dust to be removed and passed through the foam material and the perforated support, and into a receiving chamber within the housing. The foam material is releasably attached to the housing by engagement with a hook portion of a releasable hook and loop type fastener.Type: GrantFiled: November 25, 1985Date of Patent: October 10, 1989Inventor: Lloyd J. Smith
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Patent number: 4742594Abstract: An improved blackboard eraser used for automatically erasing the chalk dust comprises a housing, in which several sets of brushes and rollers in number corresponding to the brushes are installed. The rollers are made of suitable chalk-erasing material and the bottom contacts the brushes, so that the brushes can erase the chalk dust on the rollers, then they let the chalk drop down into the trough, when the rollers are rotating. This method avoids the chalk dust flying in the air. The gear means are installed on each side of the rollers. Furthermore, the gear means are connected with the idle gears on two sides of the housing to form a gear system. The RPM between the rollers are different due to the different number of the gear teeth between the gear means and the idle gears; then a friction effect is generated because of the different speeds between them, so that the erasing effect for the blackboard is improved.Type: GrantFiled: September 5, 1986Date of Patent: May 10, 1988Inventor: Jin-Sheng Chen
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Patent number: 4596059Abstract: An automatic dust-removing eraser of a rolling-friction type for use on a blackboard includes: a casing body having an open section or cavity in the central portion; a plurality of different guiding slots vertically formed at both ends of the side walls defining the open section; a spare space provided at each end portion with an escape clack valve and a discharge door respectively disposed in the opposing side walls defining the spare spaces; a pair of supporting members each having integrally-linked parallel plates respectively secured in the guiding slots of the casing body; and a plurality of master rollers and slave rollers mounted within the cavity in interrelated coupling; so that, by means of the matched rotation of the master and slave rollers and the unilateral check action effected from the supporting members, the chalk dust gathered by the master rollers over the surface of the blackboard is automatically removed through self-brushing and discharging action of the slave rollers.Type: GrantFiled: December 16, 1983Date of Patent: June 24, 1986Inventor: Wen-Chin Lee
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Patent number: 4549327Abstract: A cleaner and chalk dust receptacle for chalk board erasers comprises a box shaped container which is received and supported within a wall mounted cover member. The container has an open top, a bottom wall, a back wall, a front wall, and a pair opposed side walls which are provided with opposed outwardly arcuate convex beads extending longitudinally therealong, and the cover member has an open front, a top wall provided with an opening therethrough, a back wall, and a pair of side walls extending from the open front to the back wall. The interior surface of the side walls are provided with opposed arcuate concave grooves extending longitudinally therealong for slidably receiving the beads of the container. A scraper blade disposed on the top surface of the top wall extends transversely across the opening in the top wall for scraping chalk dust from the bottom surface of chalkboard erasers when they are drawn thereacross.Type: GrantFiled: September 21, 1984Date of Patent: October 29, 1985Inventor: Robert M. Johnson
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Patent number: 4462134Abstract: A blackboard eraser comprising a base, an uppermost cover mounted on the base, two erasing rollers pivotedly mounted within the base, a controller and two scrapers wherein the controller normally engages with the rollers for erasing use and may be depressed to release the rollers for their free rotation to contact the scrapers formed atop the rollers so as to scrape the dust accumulated on roller into a storing chamber spaced between the base and the uppermost cover for final disposal of dust.Type: GrantFiled: December 20, 1982Date of Patent: July 31, 1984Inventor: Jeng-Lin Wang
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Patent number: 4437839Abstract: An indicia receiving board, such as a chalkboard, or marker board having a writing surface and a longitudinal folding rail hinged at its ends and projecting forwardly from the bottom of the board. The hinged arrangement provides a rail which may be folded upwardly into close proximity to the plane of the indicia receiving or writing surface and thereby permit the use of a much thinner shipping carton with an appreciably reduced internal packaging support. After a board is removed from its carton, the rail is pivoted about its end hinges to an extended transverse position generally perpendicular to the writing surface of the board and thereby provide a ledge or shelf for chalk, erasers, markers, and/or other indicia affixing and removing articles. The rail is supported in its extended position by substantially coextensive foot means projecting from the inner lower margin of the rail to engage the bottom of the board.Type: GrantFiled: April 19, 1982Date of Patent: March 20, 1984Inventor: John H. Stempel