William F. Semple, a dentist, was awarded the first US Patent on chewing gum in 1869. His recipe contained powdered chalk.
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| Number | Title | Issue Date |
| 7597205 | Collapsible foldable clothes rack A collapsible foldable rack includes left and right scissors-type frames with dowel rods extending between the scissors-type frames. The dowel rods are attached to inner arms of the scissors-type frame by brackets that allow the rods to rotate relative to the frame.... | 10/06/2009 |
| 7296699 | Structure of display rack A structure of a display rack which includes a plurality of main beams, connecting sockets, diagonal support beams, and extension sockets, characterized in that the main beam is of pre-defined length, the connecting socket is movable along the main beam, the diagona... | 11/20/2007 |
| 7172081 | Folding frame construction A folding frame construction for use as a clothers airer or drier comprises at least a first pair of U-shaped frames (10, 12) which are pivotally interconnected for folding about a first axis and which form the lowermost tier when in use, and a second pair of... | 02/06/2007 |
| 7168666 | Portable support structure The present invention is a device having at least two strut assemblies joined together to form a free standing support that is both portable and collapsible. Components may be joined to one another by a flexible cord, and a flexible load bearing web to limit the max... | 01/30/2007 |
| 7168580 | Rack A first section of a rack includes a first lower wire bend, a second lower wire bend, a first upper wire bend, and a second upper wire bend. The first section also includes a first pivot coupling into which is received a first end of each of the first and second low... | 01/30/2007 |
| 7156356 | Foldable stand The invention relates to a foldable stand having a left leg, a right leg, and a brace pivotably connected to both left and right legs. The brace has a first part and a second part where the first and second parts are pivotably connected to each other and wherein the... | 01/02/2007 |
| 7100877 | Collapsible two tier support A collapsible two tier support as for use in camping dishwashing is formed by four uprights connected by pivoted cross brace sets and having a fabric panel defining on upper support connected to the tops. Additional cross brace sets support a second fabric panel at ... | 09/05/2006 |
| 7090176 | Articulated support with lateral movement for high-voltage or medium-voltage electrical plant A support for high-voltage or medium-voltage electrical plant comprises four columns placed on a support surface and connected in pairs by crossmember assemblies. The columns are each articulated to rotate about a first horizontal axis at their end resting on the su... | 08/15/2006 |
| 7063220 | Collapsible clothesline A collapsible clothesline apparatus 10 is disclosed which includes a base member 12. The base member 12 is provided with a plurality of wheels 18 coupled thereto for moving the base member 12 from one location to another. Additiona... | 06/20/2006 |
| 6499705 | Multi-purpose supporting structure A multi-purpose support structure comprises at least four retractable erection tubes and a set of two scissors type connecting rods provided between two abutted erection tubes alternatively pivoted at their centers with the upper and the lower ends of eac... | 12/31/2002 |
| 6427858 | Laundry drying rack A laundry drying rack has an elongate member having an opening. The laundry drying rack further has a connecting rod having a connecting rod distal end. In an embodiment of the present invention, the laundry drying rack is further provided with an end con... | 08/06/2002 |
| 6393543 | System and a method for transformation of memory device addresses A system for transformation of memory device addresses between different memory device topologies, each topology having its address space, providing the use of minimum memory space and time required for storage and computing defect data and also the flexi... | 05/21/2002 |
| 6283314 | Foldable rack An expandable structure adapted to convert from a collapsed position to an expanded position, wherein a plurality of parallel rods are mounted to pivotally interconnected links, each of which has a plurality of bores asymmetrically spaced from one another... | 09/04/2001 |
| 5641137 | Bag dryer A bag dryer including a plurality of elongated dowels with each dowel having an exterior end, an interior end and a hole radially positioned therethrough with a common distance from the interior end; a pair of generally rectangular base portions with each... | 06/24/1997 |
| 5287971 | Rack for supporting loaded plastic grocery bags A rack that may readily be installed in the trunk or cargo compartment of a vehicle, the rack including at least one raised horizontal bar from which one can suspend in a row several loaded plastic-film grocery bags so that the bags then rest on the floor... | 02/22/1994 |
| 5199930 | Adjustable training hurdle An adjustable height training hurdle is provided for which allows variation of the height of the hurdle from near ground level up to regulation height. A slip gear is utilized to create a scissor action of the hurdle legs thus offering incremental adjustm... | 04/06/1993 |
| 5154441 | Folding and rolling two surface table A two tier, rolling and folding table has a top planar platform (1) supported at one end by a U shaped first leg assembly (7) connected to the platform by fixed pivots and supported at another end by a pair of legs (11) of a second leg assembly connected ... | 10/13/1992 |
| 4880194 | Apparatus and method for supporting articles An apparatus and method for maintaining articles such as automotive body parts, appliance body parts, tools, windows, masonry supplies and equipment, panelling, roofing material, and the like in an appropriate position for receiving service such as recond... | 11/14/1989 |
| 4823965 | Cord wood rack and carrier A portable compactly stored cord rack and carrier assembly is set forth. A flexible wood carrier formed of canvas or leather-like material is provided with opposed handles at terminal ends thereof and supportably enables transport of firewood whereby the ... | 04/25/1989 |
| 4789070 | Clothes airer Clothes airer of the type having a pair of hinged frames each with a pair of legs joined by a beam, the legs being pivoted between their upper and lower ends so that the frames can fold or unfold between retracted and in-use positions, there being struts ... | 12/06/1988 |
| 4763865 | Foldable keyboard stand A foldable keyboard stand is formed of a pair of elongated leg tubes that are pivotally connected together to form an X-shape which is arranged in an upright position. Horizontally arranged, parallel tubes are secured to the upper and lower ends of the le... | 08/16/1988 |
| 4705247 | Collapsible utility cart A foldable utility cart is disclosed having first and second pairs of support legs (4, 6) at opposite sides thereof. The support legs (4, 6) are pivotal coupled at mid-sections (14, 16) so as to selectively diverge and converge into free standing and stor... | 11/10/1987 |
| 4538365 | Horizontal drip dryer A dryer for drip dry type of clothing. The dryer has a horizontal screen, on which clothing to be dried can be placed, supported by two parallel rails, which are fastened to the tops of two pair of legs which have pivots to permit the dryer to be folded i... | 09/03/1985 |
| 4483241 | Combination rotisserie-shish kebab accessory A free-standing combination rotisserie and shish kebab accessory is provided which includes a three-walled box having a pair of wire frame members such that the two end walls fold flat for storage when the side wall is removed. A motor driven spit can be ... | 11/20/1984 |
| 4328899 | Crockery and glassware stand A crockery and glassware stand (a dish and glassrack) for supporting plates and glassware after washing-up, comprises two generally rectangular identical frame parts hinged together about a longitudinal extending hinge or pivot axis so that they can be cl... | 05/11/1982 |
| 4297795 | Portable drying rack A portable drying rack is provided which comprises frames of unitary construction for hanging articles and support members for supporting the rack in an upright position. The support members are pivotably attached to the frames to permit the drying rack t... | 11/03/1981 |
| 4295571 | File folder support rack A file folder support rack for suspending in an upright, readily accessible orientation legal-size file folders or regular-size file folders of the type having support hooks on the corners includes two aligned, yet spaced apart offset X-shaped end frame m... | 10/20/1981 |
| 4290532 | Support assembly A support assembly primarily designed to support clothes lines in an attended fashion and generally between the primary or permanent supports located at opposite ends of the clothes lines. A line engaging support bar includes a plurality of line attachmen... | 09/22/1981 |
| 4212400 | Stand for holding utensils to be dried A stand, particularly for holding utensils to be dried has two plate-like members pivotally connected with one another in a scissor-like manner and pivotable about an axis between an open position so as to assume a rack shape and a closed position. Each o... | 07/15/1980 |
| 4131205 | Clothes-drying rack The novel rack has a first pair of generally inverted U-shaped rigid members so arranged that one member has its legs disposed within and pivotally joined to the corresponding legs of the other near the mid-points thereof. A second pair of generally inver... | 12/26/1978 |
| 4117936 | Wire rack A self-clamping wire rack is provided for magazines, cards, napkins, letters, and the like; the rack being formed in its basic configuration of a first wire rod which is bent to constitute the rear side of the rack and also to constitute a pair of rearwar... | 10/03/1978 |
| 4008670 | Foldable sample display table A foldable sample display table having a square top and two substantially flat, similar, upright crossed frame sections whereon the top is placed. The top is removable and the frame sections are pivoted about the upright central axis of the frame table wh... | 02/22/1977 |
| 3994400 | Bicycle display rack A bicycle display rack including a pair of generally horizontal frame members mounted on legs in spaced parallel relation above the ground to support a bicycle in an upwardly inclined position with one wheel resting crosswise of the frame members and havi... | 11/30/1976 |