Did You Know...
...that the inventor of the electric motor was a blacksmith named Thomas Davenport? Described as "a brilliantly unsuccessful inventor", Davenport invented the first rotary electric motor. In 1836 he headed out -- on foot -- from his Vermont home to file a patent application at the Patent Office in Washington, D.C. By the time he got there, he had squandered away his money and couldn't afford the $30 filing fee so he turned around and went home. When he later mailed in his application with money he'd raised, the Patent office was destroyed in a fire. He did finally get credit for his invention on Feb. 5, 1837.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 8100469 | Collapsible chair with curved back support This invention is a backrest for collapsible or foldable chairs that provides ample and comfortable back support for a seated person. The backrest consists of a Collapsible Back Support Curve that, when incorporated properly into a collapsible chair, is easy to set-... | 01/24/2012 |
| 7445277 | Foldable chair with extensible legs The present disclosure relates to a foldable chair having an expanded use configuration and a collapsed storage configuration. The foldable chair includes front and rear legs, a seat back coupled to the front legs, and a seat bottom mounted to pivot relative to the ... | 11/04/2008 |
| 7435207 | Collapsible and storable apparatus for exercising core muscles A core muscle exercising apparatus has a support platform that is held off the ground in an operative position by opposed front support legs and opposed rear support legs. A front support leg on one side of the apparatus is pivotally secured to a rear support leg on... | 10/14/2008 |
| 7331628 | Folding chair with safety folding device A folding chair with safety folding device comprises a safety hook, a pin, a torsion spring, a bottom cover, a seat, a back, a pair of front legs, a pair of rear legs, a front crossbar, a rear crossbar and a pivotal shaft. The safety hook is employed to position the... | 02/19/2008 |
| 7328942 | Folding chair A sign holding device for a folding chair that allows the user to display customized messages on a back rest of the chair. The sign holder is attached to the back rest in various manners so as to permit messages to be displayed when the chair is unfolded. The sign h... | 02/12/2008 |
| 7293826 | Folding chair with an anti-pinching device A folding chair includes first and second parts each having at least one leg, a total number legs of the first and second parts being at least three. A third part of the chair forms a seat and is pivotally connected to the first and second parts. A connecting assemb... | 11/13/2007 |
| 7219955 | Anti-pinching device for use in a folding chair A folding chair includes first and second parts each having at least one leg, a total number legs of the first and second parts being at least three. A third part of the chair forms a seat and is pivotally connected to the first and second parts. A connecting assemb... | 05/22/2007 |
| 7213875 | Foldable chair This foldable chair comprises a frame forming the backrest and the forward prop and being articulately linked to a second frame forming the backward prop and to a plate forming the seat. A characterising feature lies in that the seat is linked in a pin-jointed conne... | 05/08/2007 |
| 7201349 | Medical unit in an aircraft An aircraft cabin includes an area to permit administration of first aid medical care to a passenger. The area includes at least a regulatory space located in front of an access door to the cabin. The rest of this area is occupied by a medical module fully dedicated... | 04/10/2007 |
| 7163262 | Cooler seat A Cooler Seat is disclosed. The seat has a seat back assembly and seat bottom assembly that provide comfortable seating and are collapsibly attached to a cooler container. The seat further includes a retractable awning for sun and rain protection. The seat bottom as... | 01/16/2007 |
| 7147277 | Foldable chair A chair. The chair folds by a plurality of hinges between an expanded position and a collapsed position to seat a person substantially horizontal while the chair is positioned on an angled surface. The chair comprises a back assembly, a seat assembly, a leg assembly... | 12/12/2006 |
| 7073852 | Collapsible chair with tensioned seat A collapsible chair (10) has a first (110) and second (112) front leg, a rear leg (120), a seat support rod (130), and a backrest is attached to the front legs. The legs and the seat support rod are coupled via cross braces (140... | 07/11/2006 |
| 7052081 | Foldable chair A foldable chair that includes front legs, rear legs, a seat and a collar slidable on the front legs pivotally coupling the front and rear legs. ... | 05/30/2006 |
| 7036888 | Chair with bight formed in leg A chair comprises a leg. The leg is formed to include a bight extending longitudinally along the leg to strengthen the leg. ... | 05/02/2006 |
| 7021705 | Children's chair A child safety, folding seat includes support members pivotally joined to a seat member. The seat member pivots between folded and unfolded conditions, and a lock locks the seat in the unfolded condition when the seat members is unfolded. Preferably, the lock is spa... | 04/04/2006 |
| 7017986 | Folding chair A folding chair is provided having a first front leg, a second front leg, a first rear leg, a second rear leg, a first link, a second link, a chair seat, and a backrest. The chair seat includes a seat member, a first support bracket, a second support bracket, and a ... | 03/28/2006 |
| 7014264 | Folding chair with pnuematically height adjustable seat A folding chair has a height adjustable seat whose height is controlled by a pneumatic cylinder having locking springs is seated inside each of the two tubular front legs of the chair. A trigger mechanism allows the user to release the locking aspect of the springs,... | 03/21/2006 |
| 6953221 | Foldable chair A foldable chair includes a chair frame and a seat frame. The chair frame includes two spaced apart front legs, two spaced apart rear legs pivotally connected to the two front legs respectively, and a supporting member transversely extended between the two rear legs... | 10/11/2005 |
| 6905172 | Adjustable chair device, kit and method of using same A chair device, an associated kit and a method of using same are disclosed for use in providing a reclining means for sitting on an uneven surface. The device includes a seat; a back; four upper legs; two armrests; four flanges; four lower legs; and four grommets. T... | 06/14/2005 |
| 6905168 | Stackable folding chair An injection molded plastic stackable folding chair having a pair of parallel front legs and a pair of parallel back legs pivotally connected to the front legs. The front legs are separated by top and bottom crosspieces. A seat having a uniform and smooth lower surf... | 06/14/2005 |
| 6890026 | Folding chair construction A folding chair constructed of synthetic polymeric material and having an aesthetic appearance simulating that of a traditional wooden folding chair, while incorporating structural features for facilitating uniform and stable stacking of like chairs, and for providi... | 05/10/2005 |
| 6863341 | Foldable chair A foldable chair includes a first leg, a second leg pivotally connected with the first leg, and a seat module pivotally mounted on the first leg and detachably locked on the second leg. The second leg is formed with a forward protruding holding portion formed with a... | 03/08/2005 |
| 6824210 | Collapsible chair A collapsible chair has a front leg, a rear leg, a cross brace, a seat support rod, and a back rest, coupled together such that the chair collapses in a single movement. In especially preferred aspects, a collapsible chair comprises a connector that is slidably coup... | 11/30/2004 |
| 6709050 | Slide rail-type metal foldable chair A folding chair with a front chair leg pivotally connected to a rear chair leg at a pivot point. The front leg has an elongated slide with a slide washer. A slide magazine having a U-shaped cross-section is movably disposed in the slide of the front chair leg. A bot... | 03/23/2004 |
| 6669281 | Pull rod-type foldable chair structure Pull rod-type foldable chair structure. A pull rod is telescopically inserted in the top end of the rear chair leg and pivotally connected with the front chair leg. When folding or unfolding the rear chair leg, the pull rod provides a pneumatic buffing ef... | 12/30/2003 |
| 6616223 | Foldable chair A foldable chair has a plastics seat pad, a plastics backrest, and a chair frame having a pair of metal front leg tubes and a pair of metal rear leg tubes. Each metal front leg tube and the corresponding metal rear leg tube are connected together. The pla... | 09/09/2003 |
| 6592182 | Stackable folding chair An injection molded plastic stackable folding chair having a pair of parallel front legs and a pair of parallel back legs pivotally connected to the front legs. The front legs are separated by top, bottom and intermediate crosspieces, wherein the top cros... | 07/15/2003 |
| 6554353 | Dual-purpose chair A dual-purpose chair comprises a seat structure and a base structure fastened detachably with the seat structure. When the seat structure and the base structure are fastened together, the chair serves as an office chair. The seat structure can be separate... | 04/29/2003 |
| 6386627 | Rear leg-supported foldable chair Rear leg-supported foldable chair including a front leg, a rear leg, a seat and a linking mechanism. The rear leg is pivotally connected with rear end of the seat. A connecting plate is disposed at top end of the rear leg for pivotally connecting with the... | 05/14/2002 |
| 6361105 | Folding chair with retractable cup holder A chair includes a chair arm (20) coupled to a frame (22, 28) and a cup holder (24) mounted to chair arm (20) for movement between a retracted position lying underneath chair arm (20) to an opened position lying away from the underside of chair arm (20) t... | 03/26/2002 |
| 6193307 | Folding chair A folding chair is disclosed. The folding chair has a pair of front legs each having an aperture defined therethrough. A tab is formed on an inside of each of the front legs and has a first orifice defined at an upper end thereof and aligned with the aper... | 02/27/2001 |
| 6131992 | Foldable chair supported by rear supporting legs A foldable chair supported by rear supporting legs is disclosed. The rear supporting legs are directly connected to a seat. A positioning structure for resisting against the seat is installed at the fulcrum of the front supporting leg. When the seat is ex... | 10/17/2000 |
| 6099073 | Folding chair An improved folding chair is provided, which comprises two uprights (2) each having an intermediate section (10), two struts (6) articulated on the uprights (2) and each having two ends (15a, 15b) defining a lower length than that of the uprights (2) and ... | 08/08/2000 |
| 6095597 | Collapsible chair A collapsible chair includes a pivotal member having a lower pivot hole for connecting with an upper portion of two front feet and an upper hole for connecting an upper end of two rear feet. The lower pivot hole and the upper pivot hole are not aligned bu... | 08/01/2000 |
| 5954391 | Stable three legged folding chair The three-legged folding chair has a primary frame with two legs and an apex, a secondary frame with two arms and an apex, and a third leg. The secondary frame is pivotally attached to the primary frame by two pivot pins. A back rest is secured to the pri... | 09/21/1999 |
| 5897161 | Two-directionally folding chair Folding chair (10) comprising a seat (20) carried by righthand and lefthand front legs (11a, 11c) and righthand and lefthand rear legs (11b, 11d), and a back-rest (14) associated with said rear legs (11b, 11d) . Front legs (11a, 11c) and rear legs (11b, 1... | 04/27/1999 |
| 5887888 | Combined cart and chair assembly A combined cart and chair assembly includes a front support, a seat frame, a rear leg frame, a container retaining frame, and a container. The front support has a handled upper section and a wheeled lower section. The seat frame is mounted pivotally to th... | 03/30/1999 |
| 5868469 | Folding chair having a seat adjustable in height A folding chair is composed of a support frame, two seat support arms fastened with the support frame by retaining pieces capable of sliding along the support frame, and a seat mounted on the two seat support arms. The seat can be adjusted in height by sl... | 02/09/1999 |
| 5782528 | Folding chair A folding chair (1) which consists of a seat (5) foldable; two pairs of struts, front (2) and rear (3) which converge on and connect to the chair back (6) functioning as legs and being connected to each other respectively by a rear horizontal cross-bar (9... | 07/21/1998 |
| 5738408 | Stackable folding chair A plurality of stackable folding chairs having two sets of legs pivotally attached to each other and a seat pivotally attached thereto. Indentations are formed in a first side of one of the two sets of legs and a protrusion is formed on a second side of t... | 04/14/1998 |
