Did You Know...
...that the Slinky toy was the result of a failed attempt by engineer Richard James to produce an antivibration device for ship instruments? His goal was to develop a spring that would instantaneously counterbalance the wave motion that rocks a ship at sea. Instead, he developed the Slinky.
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| Number | Title | Issue Date |
| 7350306 | Easy stairs Easy Stairs is an L-shaped device having a diagonal sliding rod attached to the two sides. Connectors with locking devices allow the diagonal rod to firmly affix to the sides at various locations. To use Easy Stairs, a user adjusts the diagonal rod along the edge of... | 04/01/2008 |
| 7089831 | Cross-type wrench A cross-type wrench including a connector in which a dogging cavity and a receiving space are formed and an adjustment member accommodated in the dogging cavity and the receiving space. The adjustment member has a downward extending engaging section formed with mult... | 08/15/2006 |
| 7083355 | Stirrup support indexer for a medical examination table An indexer for positioning a limb extension bar used with an examination table. The indexer permits a selective fixed position in the forward and backward directions and a selective fixed position with respect to rotational movement. The indexer consists of a housin... | 08/01/2006 |
| 7059220 | Wrench combination A wrench combination includes a first wrench, a second wrench and a joint for rotationally connecting the first wrench with the second wrench. The first wrench is movably connected with the joint. A socket can be attached to each end of the first wrench. The second ... | 06/13/2006 |
| 6951342 | Stroller with an adjustable backrest A stroller includes a leg unit, a seat frame mounted on the leg unit, a backrest frame pivoted to the seat frame, and a positioning mechanism including a base pivoted to the leg unit, a rail unit formed on the backrest frame, a slide unit mounted slidably on the rai... | 10/04/2005 |
| 6948197 | Changing table for playard A changing table for a playard includes a front and rear rails, and a pair of side rails connected to each other to form a platform substantially rectangular or elliptical in shape. A first pivot joint with a button mounted at the exterior is provided at one end of ... | 09/27/2005 |
| 6941842 | Wrench combination A wrench combination includes a first wrench and a second wrench. The first wrench includes a shaft and two sockets each formed at an end of the shaft. The second wrench is rotationally connected with the first wrench. The second wrench includes a shaft and two sock... | 09/13/2005 |
| 6910708 | One hand pull collapsible stroller A collapsible stroller including a lockable hinge and a seat assembly pivotally mounted on the stroller frame. With the use of a seat strap attached to the seat assembly, the stroller can be collapsed using one hand. Pulling on the seat strap pivots the seat assembl... | 06/28/2005 |
| 6901867 | Pivotal connection of a support brace to a table leg and a table top A table includes a support brace that interconnects the table top and the leg. The support brace includes a first end with an outwardly extending arm with an opening and a second end with an outwardly extending arm with an opening. A first bracket is attached to the... | 06/07/2005 |
| 6843499 | Foldable baby stroller A stroller includes two rear upright tubes and two assist tubes which are respectively connected to the rear upright tubes in parallel by two joint members. At least one folding assembly is connected between the two upright tubes. The rear upright tubes and the two ... | 01/18/2005 |
| 6692178 | Pivotable tool having crossing-connected arms A pivotable tool includes a pair of pivotally interconnected arms disposed in a crossing relationship and having a manually releasable releasing device which locks the arms in a perpendicular open position for use of the tool as a wrench. In each of two e... | 02/17/2004 |
| 6640924 | Rigging system for loudspeakers A rigging system for flying a vertical stack of loudspeakers includes left and right rigging side frames (15, 17). Each rigging side frame includes a frame structure having a top end (43), a bottom end (45), and rear and front corners (51, 53, 55, 57) whi... | 11/04/2003 |
| 6616367 | Position adjusting means for a back of a stroller A position adjusting apparatus for a back of a stroller includes an engaging rod, a controlling slide member, and a positioning block. The positioning block is fixedly connected to at least one handle support rod of the stroller, and has several engaging ... | 09/09/2003 |
| 6331089 | Mounting device for bicycle component A mounting device adapted to be coupled to a portion of a bicycle to adjustably support at least one bicycle component thereon. The bicycle mounting device has a bar clamp and a support member. The bar clamp has a bar clamping portion adapted to be couple... | 12/18/2001 |
| 6155740 | Stroller and a fold latch assembly thereof A fold latch assembly is provided for use with a collapsible stroller. The fold latch assembly includes a latch slidably connected to an arm of the collapsible stroller, a housing pivotally attached to the latch and slidably attached to the rear leg of th... | 12/05/2000 |
| 6095171 | Multiple-fold windproof umbrella with compact restoring mechanism A multiple-fold windproof umbrella includes: a central shaft having a rib assembly pivotally secured to the central shaft, a lower cloth secured to the rib assembly, an upper cloth secured to the central shaft and juxtapositionally retained above the lowe... | 08/01/2000 |
| 5362089 | Foldable baby stroller A baby stroller includes a pair of front legs, two handles and two rear legs pivotally coupled together, each of the supports has a member fixed on the upper end of the front leg and pivotally coupled to the lower end of the handle, a sleeve slidably enga... | 11/08/1994 |
| 5355903 | Umbrella The present invention includes an umbrella which converts to at least two separate canopy configurations. The umbrella has a closed position, from which it can be opened and latched into at least one middle position. Such a middle position can be used as ... | 10/18/1994 |
| 5259264 | Adjustable steering wheel An adjustable steering wheel, preferably for trucks, includes a steering column (4) on an upper supporting arm (3), which is pivoted in a lower supporting arm (2), which in turn is pivotally mounted to a windshield beam, for example, in the cab. A locking... | 11/09/1993 |
| 5220851 | Locking shock absorber for bicycle handlebars A lockable shock absorber interconnecting the upper portion of a bicycle front wheel fork with a handlebar thereabove provides releasably joinable body extending upwardly from the bicycle fork and pivotally mounting in its upper portion an elongate handle... | 06/22/1993 |
| 5211498 | Folding joint for a foldable playyard A folding joint for a foldable playyard having a base frame having two connecting members pivotably secured at the inside for holding two rails permitting them to be held in a longitudinally aligned position or folded up into a collapsed position. The con... | 05/18/1993 |
| 5149120 | Wheelchair lock A locking apparatus is operative to selectively prevent the folding of a wheelchair of the type having a pair of centrally pivoted cross braces under the wheelchair seat. A bracket member is provided at each end of a pin which is adapted to constitute the... | 09/22/1992 |
| 5121764 | Umbrella having reinforced top rib An umbrella includes a plurality of top ribs pivotally secured to a notch formed on an upper end of a central shaft and a plurality of stretcher ribs each pivotally secured between each top rib and a runner slidably held on the central shaft, each top rib... | 06/16/1992 |
| 4993743 | Folding and lock mechanism for pushcart A folding and lock mechanism for a pushcart includes a bracket pivotally mounted at its proximal end on a rear face of a rear leg intermediate opposite ends of the rear leg so that the bracket can be pivotally moved along the rear face of the rear leg bet... | 02/19/1991 |
| 4771643 | Spring return for motor driven loads A load return mechanism is provided having an actuator for driving a load, a load adapted to be driven by the actuator, a first lever driven by the actuator, a second lever attached to the load, and an apparatus for locking the two levers together so that... | 09/20/1988 |
| 4756402 | Side guide for aircraft belt loader An improved side guide for an aircraft belt loader having a vertical plate member positioned adjacent to and extending along side the belt conveyor frame which plate is supported by a pair of links, one of which has a slot and a cam surface terminating in... | 07/12/1988 |
| 4741582 | Mounting fastener A mounting fastener includes a nut carrier having a pair of oppositely extending resilient wings which extend below the nut carrier and spread as the carrier is slid in a confined track to hold the carrier in position until a bolt or other fastener is thr... | 05/03/1988 |
| 4726731 | Hitch A quick release hitch for attaching an implement to the arm of a hydraulic excavator comprises a pair of pivotted links, each link having a jaw for engaging a pin on the implement; the links can be jack-knifed to engage or disengage the implement; and loc... | 02/23/1988 |
| 4706986 | Mechanism for locking opened state of baby carriage When a baby carriage is in its opened state, the front and rear legs extend in an inverted-V form. Each rear leg is provided with a bracket extending toward the front leg, with a foldable locking rod turnably connected at its opposite ends between the bra... | 11/17/1987 |
| 4695024 | Test system manipulator arm An adjustable arm for controlling the horizontal and vertical position of an object mounted at one end of the arm comprises: means for rigidly mounting the end of the arm opposite the end at which the object is mounted; a plurality of interconnected links, a f... | 09/22/1987 |
| 4648619 | Collapsible wheelchair chassis The invention relates to a collapsible wheelchair chassis of the type including two side frames, which are jointed together by a pair of crossed braces provided with a pivot joint at their middle. According to the invention, the braces are arranged in a h... | 03/10/1987 |
| 4640301 | Foldable walker with plunger actuated latch assembly A locking assembly is disclosed which is suitable for releasably locking two articulated pivoting members in a fixed position with respect to each other. The locking assembly comprises a spring biased reciprocating latch, a plunger attached to the latch, ... | 02/03/1987 |
| 4615637 | Foldable self-erecting joint A self-erecting joint for a pair of hinged, tubular members in which the hinging is located at corresponding portions of the members and the opposite edge portions are connected by spring-biased toggle links which in the unfolded position of the members a... | 10/07/1986 |
| 4600207 | Connection of steering column to frame For adjusting the angle of inclination of a motorcycle steering column relative to the frame of the motorcycle the tubular steering column support has, near one of its ends, a pivot connection with the frame whereby its other end is swingable forward and ... | 07/15/1986 |
| 4522528 | Tilt cab support stay A stay can be used to support a cab of a tilt cab vehicle selectively in a first raised position in which the cab has been pivoted through an angle of, for example, 40° and the stay is in compression, and in a second raised position in which the cab has ... | 06/11/1985 |
| 4518002 | Foldable walker with plunger actuated latch assembly A locking assembly is disclosed which is suitable for releasably locking two articulated pivoting members in a fixed position with respect to each other. The locking assembly comprises a spring biased reciprocating latch, a plunger attached to the latch, ... | 05/21/1985 |
| 4484686 | Multiple offset boom extension A side stowable swing-around boom extension is pinned on the nose of a telescoping crane boom in a first use position nearly coaxial with the center line of the boom but tilted or offset therefrom at a small angle. Two larger angularly offset use position... | 11/27/1984 |
| 4452545 | Pivotal and movable connection A pivotal and movable connection between a pair of members which includes a slot in an offset portion of one of the members to locate the edge portions of the slot in laterally offset parallel relationship. A shaft on the other member mounts a pair of rol... | 06/05/1984 |
| 4452038 | System for attaching two rotating parts made of materials having different expansion coefficients A system is disclosed for attaching a cap of composite material to the exhaust housing of a turbojet. The system consists of three triangular rod assemblies arranged between the housing and the cap. The triangular rod assemblies bear at their ends eyelets... | 06/05/1984 |
| 4299313 | Mobile luggage case handle assembly A luggage case with a pair of wheels located at the lower edge has a handle assembly that can be folded into a side wall or swung outwardly into pulling (or pushing) relation. A two-part brace maintains a quasi locking of the handle assembly when in the o... | 11/10/1981 |
