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An automatic bed maker which uses the expansion of inflatable bladder to straighten, align, and tuck-in bed-cover assembly.
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| Number | Title | Issue Date |
| 7581714 | Device for handling a structure that is being lifted or lowered An operating includes a rack cut on both sides, sandwiched between two pinions with horizontal axes and arranged in the same horizontal plane or substantially in the same horizontal plane, driven into opposite directions by the same motorized system. The outlet shaf... | 09/01/2009 |
| 7258313 | Method for leveling an object A device for leveling an object on uneven or sloping floors. The device is comprised of a housing with a substantially hollow portion having a worm gear, a driven gear, and an elevation shaft with threads on at least a portion of the shaft's external surface. The wo... | 08/21/2007 |
| 7213796 | Linear actuator with releasably interlocking bands The linear actuator comprises an elongated first band wound in helical form about a central axis and capable of taking a retracted position and an extended position with its turns spaced from one another in the direction of the central axis, and first fasteners carr... | 05/08/2007 |
| 7156208 | Stairlift A stair lift includes a lift assembly arranged to be driven along a rail. The lift assembly includes a chassis supporting a load bearing member such as a seat. The chassis is formed by a main member on which are mounted a drive assembly and a levelling assembly for ... | 01/02/2007 |
| 7118580 | Instrument for inserting intervertebral implants In an insertion instrument for a three-piece intervertebral implant that includes an upper part that can be placed against a vertebra, a lower part that can be placed against the adjacent vertebra, and a pivot element that can be inserted between these two parts, th... | 10/10/2006 |
| 7080570 | Drive device for machine tools A machine tool drive device comprising in a structure: a line of inlet shafts; and angle takeoffs, each having an outlet shaft perpendicular to the line of inlet shafts, each being coupled to the inlet of a reversi... | 07/25/2006 |
| 6764065 | Trailer jack assistance apparatus An apparatus for assisting in the operation of a conventional trailer jack. The jack assistance apparatus is attached to a conventional trailer jack having telescoping tubes with a coarse adjustment and a fine adjustment. The apparatus includes a lever arm that enga... | 07/20/2004 |
| 6231269 | Apparatus for releasing a rack chock of a jack-up rig A "frozen" rack chock of a jack-up rig is released by a moving force imparted on the rack chock by a worm gear assembly. The worm gear assembly has a tooth wheel with a plurality of teeth and a worm gear member provided with a worm thread that engages the... | 05/15/2001 |
| 6149144 | Movable work bench A movable work bench used in repairing a transmission of a vehicle is provided, in which it is possible to control a desired height of the work bench, make fine adjustments for keeping the balance of the transmission supported on the work bench, and easil... | 11/21/2000 |
| 5797703 | Elevating unit for use with jack-up rig An elevating unit for a jack-up rig provides a pinion gear that rotates upon a support frame for engaging a toothed rack of each leg of the jack-up rig. Each pinion gear is mounted on a gear shaft that extends in opposite directions from a plane of rotati... | 08/25/1998 |
| 5421555 | Quick release trailer jack A quick release trailer jack comprises a vertical support mast extending through a jack body. Pinion and worm gears housed in the body couple a crank to a rack gear on the mast for vertically raising and lowering the mast relative to the trailer. A plunge... | 06/06/1995 |
| 5415159 | Support structure for abdominal lift A support structure for supporting a surgical instrument is provided. The support structure includes an arm assembly, a leg assembly, a base assembly, and a support bracket. The leg assembly includes a latch mechanism that engages the base assembly. The b... | 05/16/1995 |
| 4978104 | Quick release jack A quick-release rack and pinion safety jack assembly for mounting upon the tongue of a conventional trailer. The jack assembly comprises a vertical support stanchion extending upwardly from a rotatable caster, a rigid rack, and a weatherproof box-like gea... | 12/18/1990 |
| 4901982 | Method intended to facilitate disengagement of mechanisms applying high stress to one another A system and method are provided to facilitate disengagement of two mechanisms engaged with one another with a high stress therebetween, such as in rack locking arrangements used on offshore platforms. The first mechanism (e.g., a rack) is mobile in relat... | 02/20/1990 |
| 4848735 | Gear box for rack and pinion jack and method of making same A tongue mounted rack and pinion jack for a trailer wherein a pair of die-cast gear box segments are bolted together for supporting a handle driven worm gear and a pinion gear in self-contained bearing surfaces formed in the gear box segments. When the ge... | 07/18/1989 |
| 4799648 | Trailer jack using full sized spare tire An improved trailer jack has a castor structure enabling use of a full size spare trailer wheel and tire on the jack; the jack has a gear box mechanism, a lift post drivable up and down by the gearbox, and a lift element pivotally journaled inside the pos... | 01/24/1989 |
| 4792121 | Lifter A device for lifting and positioning a heavy object, comprising a base, a pair of arcuate arm moving rack gears, a pair of arms rotatively affixed to the arcuate rack gears, a pair of arm moving pinion gears fixed to an axle rotatively affixed to each arm... | 12/20/1988 |
| 4702458 | Quick release jack A jacking apparatus having a quick release mechanism for disengaging the main shaft of the jack from the jacking gear to allow the main shaft to be selectively raised and lowered as desired without operating the jacking gear. The main shaft has a pluralit... | 10/27/1987 |
| 4687026 | Equipment for closing conduits Equipment for closing conduits comprising a closing lid (1) having two circular disks with a peripheral sealing ring of resilient material. A tightening device connect the two disks at the center thereof causing during tightening to compress the sealing r... | 08/18/1987 |
| 4678165 | Mode of construction of lifting mechanisms for a jack-up platform and lifting mechanism for a jack-up platform A lifting mechanism (4) operating by means of cogwheels (6) climbing along a toothed rack (3) on the leg (2) of a jack-up platform (1). Lifting mechanisms (4) required for different applications of use, having different capacities of lifting are assembled... | 07/07/1987 |
| 4597561 | Lifting and depositing device for portable containers, e.g., containers, shelters, superstructure replacements parts or the like A lifting and depositing device for portable containers comprising a plurality of rack and pinion jacks, some of which are mounted on support legs of the container. Each rack and pinion jack has an accessory gearing which can be pivoted outwardly or remov... | 07/01/1986 |
| 4437792 | Vertically moving platform supported on legs A mobile platform with relatively vertically movable legs, of the off-shore drilling platform type, has a plurality of pairs of opposed racks on each leg, with a row of pinions supported in a pinion carrier for each rack. A link for each pinion carrier is... | 03/20/1984 |
| 4286649 | Apparatus for storing a continuous casting starting bar in elevated position A starting bar for a flow-through continuous casting mold is curved lengthwise in a vertical plane and has a trailing end for joining to a metal strand issuing from the mold, and a leading end portion provided with a row of rack teeth extending along the ... | 09/01/1981 |
| 4116251 | Log splitter with gear rack drive A log splitter of the horizontal track, upstanding blade, reciprocating carriage type is driven by mechanical rather than hydraulic mechanism to reduce cost and weight and breakage. Instead of crank arms, a gear rack and spur gear system is provided, ther... | 09/26/1978 |
| 4106768 | Amusement device An amusement device having a casing provided with a playing surface along which there is defined a path, a body for moving along the path, a magnetic mechanism within the casing on the opposite side of the playing surface from the body for attracting the ... | 08/15/1978 |
| 4093181 | Powered vehicle jack An automotive jack having a motorized carriage on which is carried a rotatable member engageable with a series of recesses located along a jack standard. The carriage is roller mounted on the jack standard and includes a bumper engaging arm. A reversible ... | 06/06/1978 |
| 4073475 | Chain link fence straightener Chain link fence straightener apparatus usable to restore bent chain link fence sections or segments without removal thereof from the fence, and including lower and upper tine means arranged on an upright post supported by a ground engageable base member,... | 02/14/1978 |
| 4013267 | Pendulum jack An automobile jack having a pivotal center post mounted in a swivel base and a pair of opposed legs which enables the user to move the car after it has been raised by the jack. The legs are caused to translate together in opposing directions by means of a... | 03/22/1977 |
| 3934852 | Trailer tongue jack A jack for supporting and adjusting the elevation of a trailer tongue comprises a ground support post, having either a caster wheel or foot plate at its lower end, extending downwardly through a jack mechanism housing which is bolted to the trailer tongue... | 01/27/1976 |
| 3930533 | Continuous casting apparatus with flexible starting bar which is gear-rack supported in storage position A flexible elongated strand-starting member curved lengthwise in a vertical plane has one end formed for temporarily plugging the bottom of a flow-through continuous casting mold. Extending from the opposite end of the starting member along one of its cur... | 01/06/1976 |
