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 |
| 7424941 | Clutch device with buffer function A clutch device with a buffer function comprises a first spindle having an engaging surface; a second spindle having a rack at a side near the first spindle; the second spindle movably engaged to the first spindle; a clutch sleeve enclosing the second spindle; a fro... | 09/16/2008 |
| 7419041 | Main shaft dog clutch and method A transmission shaft is divided into a first shaft portion releasably connectable to a first electric motor/generator via a first gear set and a second shaft portion connected to a second electric motor/generator via a second gear set. The first and second shaft por... | 09/02/2008 |
| 7284981 | Functional handpiece having a light emission element at its forward end Functional handpiece 1 having an elongate handpiece body which has at its rearward end a connection element for connection with a flexible supply line, and has at its forward end a light emission element of a light permeable material for the illumination of the trea... | 10/23/2007 |
| 7273016 | Variable speed drive for agricultural seeding machines An agricultural seeding machine includes a mechanical drive; a seed meter including a driven shaft; and a planetary gear set. The planetary gear set includes an input shaft connected with the drive, an output shaft connected with the driven shaft, a ring gear, and a... | 09/25/2007 |
| 7104339 | Automatically engaging coupler with flexible shaft for a seeding machine An agricultural seeding machine, includes a seed hopper, a first frame member carrying a drive shaft, a second frame member carrying a driven shaft, a coupler, and a flexible shaft. The first frame member and the second frame member are foldable relative to each oth... | 09/12/2006 |
| 7055795 | Drive mechanisms for valve actuators The present invention provides a motorized valve actuator wherein the drive from the motor to the output shaft of the actuator is via a worm and worm wheel or other gear mesh which is incapable of being back driven, the actuator having an alternative manual drive, t... | 06/06/2006 |
| 6830142 | Power splitting transfer cases for changing vehicle traction drives A transfer case for a vehicle having two-wheel drive and four-wheel drive operating modes operatively established by a drive transfer mechanism that is selectively employed to interconnect a main power drive shaft construction for the drive of a first set of wheels ... | 12/14/2004 |
| 6581664 | Articulated-arm awning An articulated-arm awning having at least two articulated arms, each incorporating an inner and outer articulated arm section that are connected to one another by a joint having a substantially vertical swiveling axis. The outer articulated arm section of... | 06/24/2003 |
| 6557683 | Face clutch coupling device A face clutch coupling device between rotating members comprises a first clutch element and a second clutch element which have face teeth and are movable relative to one another between a disengagement position and an engagement position in which the rota... | 05/06/2003 |
| 6253824 | Disconnect for powered sectional door An operator (10) for moving in upward and downward directions a sectional door (D) having a counterbalancing system (30) including a drive tube (31) interconnected with the door including, a reversible motor (40), a drive shaft (50) selectively driven in ... | 07/03/2001 |
| 6206162 | Dog clutch mechanism A dog clutch for a power tool such as a chain saw for engagement and disengagement of the motor from the cutting tool comprising a first gear (32) mounted on and attached to a rotatable spindle (34), a second gear (36) rotatably mounted adjacent the first... | 03/27/2001 |
| 6123235 | Caulking gun A caulking gun includes a frame connected in the body of the device, a motor and a first gear respectively connected to the two sidewalls. A shaft extends through the two sidewalls with a sleeve and a board respectively and movably mounted to the shaft. A... | 09/26/2000 |
| 6073742 | Self-centering dog clutch A self-centering dog clutch includes two coupling-parts is arranged in a simple manner such that components serving for centering purposes are not necessary. Contact faces of the two coupling-parts are off-set relative to the rotational axis of the dog cl... | 06/13/2000 |
| 6066062 | Gear change for automobile vehicle provided with auxiliary epicyclic gear train with helical gears including axially displaceable crown A gear change for an automobile vehicle comprising a box, a main train, an input shaft of which is connected to the engine and a primary shaft of which can be connected angularly to the input shaft by a plurality of pairs of gears, and an auxiliary epicyc... | 05/23/2000 |
| 5996756 | Yarn supply apparatus and clutch arrangement therefor A yarn supply apparatus is equipped with a clutch arrangement in order to couple a drive wheel to rotate with a yarn supply wheel as necessary. The clutch arrangement is constructed in an open design, in which any development of narrowing spaces is avoide... | 12/07/1999 |
| 5839556 | Connecting mechanism and method for connecting transmission components of an off-the-road vehicle A connecting mechanism for selectively connecting transmission components has a gear with teeth and a clutch collar mechanism. The clutch collar mechanism has a clutch collar, pins, springs used to bias the pins, and spring plates. To connect the clutch c... | 11/24/1998 |
| 5741003 | Child-resistant handle A child-resistant handle to be mounted to a valve stem to which is affixed a cogwheel adapter by a shoulder screw. The shoulder screw rotatably mounts the freely rotatable handle to the valve stem. The handle has an inverted cup shape that extends over an... | 04/21/1998 |
| 5671904 | Valve safety handle A valve safety handle having a handle slidably attached to a valve stem. The handle incorporates a handle female spline sized to engage a valve stem male spline. The handle female spline is urged out of engagement with the valve stem male spline by means ... | 09/30/1997 |
| 5651292 | Splitter shift mechanism and control A splitter-type compound transmission (110) is provided with a splitter clutch (180) having increased backlash and a three-position actuator (202) controlled by a microprocessor-based controller (222). The controller will receive inputs for various sensor... | 07/29/1997 |
| 5560432 | Steering clutch for small agricultural implements A steering clutch assembly attached between an axle and a wheel of a rear-tined rotary tiller allows the implement to be steered. The clutch assembly comprises three coaxial tubular elements, the inboard-most of which is affixed to one of the driven shaft... | 10/01/1996 |
| 5515748 | Engine control device and actuator for the same An engine control device for a boat, ordinary operated with power-assisting actuator, and manually operated through control cable at emergency state. The actuator has a rotary shaft supported by a casing, a slide gear mounted on the rotary shaft in axiall... | 05/14/1996 |
| 5014835 | Power work-machine A power work-machine having a clutch drum of a centrifugal clutch provided on one end of the output shaft has a plurality of peripheral notches formed on its axially extended outer end portion and a dog clutch provided on the drive shaft of a work-machine... | 05/14/1991 |
| 4625848 | Lock device Electrically-controlled and manually-actuatable lock devices are provided which can be attached in a simple manner to doors of all types. Given remodeling of existing doors, the cylinder lock present in the respective door can remain. The lock device conv... | 12/02/1986 |
| 4601372 | Automatically engageable and disengageable drive coupler mechanism An automatically engageable and disengageable drive coupler mechanism is provided in which separate drive and driven couplers are automatically coupled to and uncoupled from each other simply by moving the couplers into and out of contact with each other ... | 07/22/1986 |
| 4566566 | Device for temporarily uncoupling two coaxial rotating elements The invention relates to mechanisms for uncoupling two rotating elements. The device includes a positive clutch sliding on a rotating drive element and subjected to the action of a return spring, an energy storage spring stronger than the return spring an... | 01/28/1986 |
| 4453624 | Handwheel clutch for sewing machines A clutch element fastened to the end of a sewing machine main shaft by a shouldered screw is slidable thereon to a first position wherein axially extending clutch fingers thereof extend through guide notches in an interlock element fixed to the main shaft... | 06/12/1984 |
| 4378185 | Tool driving apparatus A power tool includes a turret rotatably mounted on a hub, a first shaft rotatably mounted in the hub and a second shaft mounted for rotation in the turret and for aligned rotating engagement with the first shaft in the hub. First and second members, incl... | 03/29/1983 |
| 4369936 | Fishing reel clutch control mechanism A clutch control mechanism is provided for a fishing reel which has a spool shaft having a spool and supported to a stationary member. The spool shaft is connected through a transmitting mechanism having a clutch to a handle supported to the stationary me... | 01/25/1983 |
| 4271781 | Outboard motor clutches An outboard motor propulsion unit which is manufactured and sold without a clutch is provided thereafter with a clutch, as follows. The spring connecting the propeller to the output shaft is removed. Interengageable clutch members are fitted to the thrust... | 06/09/1981 |
| 4189284 | Slipping clutch mechanism A fan having an air directing grille mounted in the path of air flow includes means for rotating the grille at a speed slower than the speed of rotation of the fan blade. The means for rotation also includes a clutch mechanism having a rotary drive member... | 02/19/1980 |
| 4131186 | Timer construction and clutch construction therefor or the like A timer construction having a timer motor and a selectable time period unit adapted to be interconnected to the timer motor of a clutch construction to drive the time period unit for a selected time period, the clutch unit including a first rotatable memb... | 12/26/1978 |
| 4082365 | Pneumatic outlet operating mechanism A pneumatic outlet for a hopper is disclosed having a tubular conduit extending from at least one end of the outlet to which suction or air under pressure may be applied for unloading the outlet. The tubular conduit is rotatably mounted and is connected t... | 04/04/1978 |
| 3991864 | Motor saw, especially motor chain saw A clutch arrangement for a motor driven chain saw having a first clutch element driven by the motor shaft and a second clutch element normally engaged with the first clutch element but disengageable therefrom and a centrifugal clutch between the second cl... | 11/16/1976 |
| 3974663 | Drive unit in circular hosiery machines for a dial with plate shift clutch An arrangement in a circular hosiery machine in which a motion drive device is provided between the needle cylinder and the dial. A program chain advances with each revolution, and a program drum advances intermittently with the action of the chain. A clu... | 08/17/1976 |
