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| Number | Title | Issue Date |
| 8047348 | Clutch structure for manual hoists A clutch structure for manual hoists includes a driven wheel for driving the wind device in the manual hoist. A ratchet and at least one resilient member are sequentially and co-axially mounted on the driven wheel. A nut is screwed onto the driven wheel to prevent t... | 11/01/2011 |
| 7325812 | Grip assembly for clutch cap, front sleeve, rear sleeve and method of making A grip assembly for one of a clutch cap for a clutch mechanism, a rear sleeve or front sleeve for a chuck assembly having a chuck mechanism with a plurality of adjustable jaws. The grip assembly includes an inner sleeve having open top and an open bottom opposite th... | 02/05/2008 |
| 7308948 | Electric power tool An electric power tool is provided which prevents malfunction with excellent operability even when one operation mode among various modes is selectable. In a gear case of a housing, there are provided a clutch switching groove which engages with a connecting project... | 12/18/2007 |
| 7228752 | Structure of a gearbox for all terrain vehicles A gearbox for all terrain vehicles which includes an engine having a crankshaft which drives a belt transmission mechanism of a transmission case thereby transmitting power to a final axle in the gearbox via a driven axle of the belt transmission mechanism, wherein ... | 06/12/2007 |
| 7201235 | Driver drill A driver drill that can effectively prevent erroneous clutch operation in a drill mode is provided. A flat washer positioned between steel balls for locking an internal gear and a coil spring is rotatable by rotative operation of a mode-change ring. Also, protruding... | 04/10/2007 |
| 7197968 | Screwdriver with adjustable device to limit transmitted torque A screwing tool with a device to adjust transmitted torque comprises a handle to introduce a torque to the device, which is borne in the hollow of the handle and a drive shaft as an output element of the torque. On the drive shaft inside the handle, two separate cou... | 04/03/2007 |
| 7137329 | Circular saw clutch assembly A circular saw clutch assembly includes an elongated rod that is coupled to a table saw assembly. A peripheral flange is integrally attached to the rod. The flange has a plurality of ball bearings mounted therein. A first washer abuts the flange and includes a plura... | 11/21/2006 |
| 7052239 | Oscillating fan clutch The invention pertains to a clutch for an oscillating fan wherein the clutch may be preadjusted for producing various degrees of oscillation, but will automatically adjust to a lesser degree of oscillation if the fan movement is restrained due to the fan's encounter... | 05/30/2006 |
| 6929074 | Elbow-type power hand tool An elbow-type power hand tool including a housing, a motor, a planet gear set, a transmission shaft, and a torque controller mounted in the housing for controlling output torque of the transmission shaft. The power hand tool including a battery pack mounted in the h... | 08/16/2005 |
| 6910836 | Impact driver for rotary tools Method and apparatus for improving the efficiency of the rotating cutter of a tool by converting at least part of the rotational torque applied to the cutter to repeated rotational impact forces. ... | 06/28/2005 |
| 6749049 | Torque limiting coupling A torque limiting coupling defines a longitudinal axis (17) and has a coupling hub (8) with circumferentially distributed through holes. Transfer elements are adjustably held in the holes. A coupling sleeve (6) has first recesses corresponding t... | 06/15/2004 |
| 6745883 | Electric power tool In an electric power tool having a clutch ring for adjusting a fastening torque, an outer member 3 which are lower in hardness than a base member 2 of the clutch ring 1 has a plurality of projections discontinuously arranged on the outer periphe... | 06/08/2004 |
| 6533093 | Torque adjusting device for a drill A torque adjusting device of an electric drill includes an annular member with notches in an end and grooves in an outer periphery thereof. A driving part connected to an output shaft is received in the annular member and operationally connected to the mo... | 03/18/2003 |
| 6328652 | Internal torque limiter for a right angle indexer A right angle indexer includes an internal torque limiter. The indexer includes an input shaft with a cam, and an output shaft. The cam on the input shaft rotates a hub on the output shaft. The hub is rotatable relative to the output shaft. The output sha... | 12/11/2001 |
| 6312339 | Safety coupling The safety coupling comprises a housing (12) made up of a housing capsule (13) and a screwed-on housing cover (14). The torque is transmitted from the input shaft (10) via coupling disks (17, 18) to the output shaft (19). The first coupling disk (17) comp... | 11/06/2001 |
| 6309304 | Internal torque limiter for a parallel indexer A parallel indexer having a housing, an input shaft rotatably mounted in said housing, an output shaft rotatably mounted in said housing and extending exteriorly thereof, said input shaft and output shaft being arranged parallel to each other, said output... | 10/30/2001 |
| 6305481 | Clutch mechanism for use in a power-driven tool A lock washer (24) presses balls (21) and pins (23) against a clutch cam (18) with protrusions (19) formed on its front face. A rear end (25a) of a spring holder (25) abuts on the inner edge of the front face of the lock washer (24) while the half of the ... | 10/23/2001 |
| 6045303 | Rotatable torque adjusting device of rotation tool A rotatable torque adjusting device which is incorporated in a rotation tool for adjusting output torque of the rotation tool is disclosed. The rotation tool has a front end surface on which a support cylinder is provided to rotatably support an output sh... | 04/04/2000 |
| 6010426 | Lock device of output shaft A lock device for an output shaft, wherein an output shaft is formed by connection of a driving shaft and a driven shaft, a play angle for not transmitting power for a specified angle in mutual rotating directions is formed in the connection area for conn... | 01/04/2000 |
| 5931272 | Torque responsive rotation control device An input-side rotary member 20, including an input gear 7, and an output-side rotary member 19, including a torque cam 1 fixedly mounted on an output shaft 12, are provided on the same axis of rotation. The input-side rotary member 20 is provided with an ... | 08/03/1999 |
| 5927453 | Device for overload protection and braking of a machine part driven by a motor A device for overload protection and for braking a machine part driven by a motor (2), in particular, a tool driven by a cam gear in a stamping and/or bending machine, comprises a module (3), an overload clutch (4) disengaging after exceeding a torque thr... | 07/27/1999 |
| 5868229 | Device for overload protection and braking of a machine part driven by a motor A device for overload protection and for braking a machine part driven by a motor (2), in particular a tool driven by a cam gear in a stamping and/or bending machine, comprises a module (3), an overload clutch (4)disengaging after exceeding a torque thres... | 02/09/1999 |
| 5868231 | Torque limiting coupling A torque limiting coupling, in drive lines or driving agricultural machinery has a first coupling part (1) and a second coupling part (14), as well as a switching ring (19) loaded by a spring (28). Balls (30) transmit torque between the first coupling par... | 02/09/1999 |
| 5857913 | Hollow shaft reduction gear with overload protecting device Hollow shaft reduction gear with overload protecting device facilitating adjusting the torque of the overload protecting device and repairing the device. A drive plate (8) is axially slidably mounted on one end portion of a hollow output shaft (2) project... | 01/12/1999 |
| 5626216 | Tool holder, in particular for robot welding or cutting torches A tool holder for robotic curing or welding torches includes a housing having a facing part, a stop plate which is at least partially disposed within the housing and has a home position in which the stop plate is disposed proximate the housing facing part... | 05/06/1997 |
| 5573074 | Gear shifting power tool A gear shifting power tool (10) includes a rotatably-driven, torque-responsive, gear shift device (30). Rotatably-driven, torque-responsive, gear shift device (30) may include drive spindle (38), plunger (54) positioned within drive spindle (38). Drive sp... | 11/12/1996 |
| 5555962 | Device for overload protection and braking of a machine part driven by a motor A device for overload protection and for braking a machine part driven by a motor (2), in particular a tool driven by a cam gear in a stamping and/or bending machine, comprises a brake (3), an overload clutch (4) disengaging after exceeding a torque thres... | 09/17/1996 |
| 5518190 | Grinding unit for a coffee grinding apparatus The grinding unit comprises a grinding rotor unit, incorporating a inlet screw member, a conical grinding tool member, a delivery dish member and a gear unit. A dog clutch is operationally inserted between the delivery dish member and the gear unit. A saf... | 05/21/1996 |
| 5505676 | Clutch torque control A clutch torque control features a plurality of clutch balls disposed between complementary races of input and output cams which are relatively axially displaceable upon the input cam rolling the clutch balls between matching cam peaks responsive to a dri... | 04/09/1996 |
| 5207539 | Power feed mechanism for rotary cutting tool A rotary cutting tool is described which includes a motor for moving the tool vertically into a surface to be cut. The motor is connected to the tool by a clutch which is most preferably a ball clutch selectively engageable to transmit drive. The clutch f... | 05/04/1993 |
| 5156244 | Torque sensing automatic shut-off and reset clutch for screwdrivers, nutsetters and the like An improved torque control and fluid shut-off mechanism for a fluid operated tool includes a driving clutch member and a driven bit holder connected by ball bearings retained by the clutch member which engages in pockets in the bit holder. The pockets inc... | 10/20/1992 |
| 5054588 | Torque sensing automatic shut-off and reset clutch for screwdrivers, nutsetters and the like An improved torque control and fluid shut-off mechanism for a fluid operated tool includes a driving clutch member and a driven bit holder connected by ball bearings retained by the clutch member which engages in pockets in the bit holder. The pockets inc... | 10/08/1991 |
| 4991701 | Tripping torque setting mechanism of overload clutch A tripping torque setting mechanism of an overload clutch having an adjusting nut threadedly engageable with a thread provided on a cylindrical part of a clutch hub, the adjusting nut being tightened against a spring to produce an urging force correspondi... | 02/12/1991 |
| 4934494 | Combined locking mechanism and switch especially for power tools A combined locking mechanism and switch especially for power tools has a switch, an actuator for directly turning on or off the switch, a locking member shiftable between a first position in which it is disposed in opposed relation to the actuator and a s... | 06/19/1990 |
| 4828095 | Internal overload clutch assembly An internal overload clutch assembly is provided for connecting rotating and rotatable members during normal operation and for disconnecting same when a maximum predetermined torque is exceeded, all of the operating components being mounted within an encl... | 05/09/1989 |
| 4746320 | Torque limiting clutch Torque limiting clutch comprising a driving member and driven member bearing mounted together, with the driving member having a flange integrally extending from its one end, and having locating slots therein, for accommodating a series of ball detents, an... | 05/24/1988 |
| 4635904 | Vehicle jack A leveling jack mounted on the frame of a vehicle with a horizontal stowed position and a vertical actuated position, including, a pair of telescoping tubular members, telescoping between open and closed position, a ball screw actuator including a ball me... | 01/13/1987 |
| 4625843 | Torque limiter with device indicating operation thereof A device for limiting the torque transmitted from an input shaft to an output shaft comprises a spring-loaded clutch interconnecting said shafts. Relative movement between parts of the clutch when a predetermined output torque is exceeded results in appli... | 12/02/1986 |
| 4605111 | Hoist A hoist includes a shaft driven by external force, a driving shaft connected to the shaft, a reduction gear train for transmitting rotation of the driving shaft to a load sheave, a mechanical brake assembly in the reduction gear train, and an overload saf... | 08/12/1986 |
| 4291553 | Torque limiter A torque limiter comprises a driving member and a driven member disposed concentrically with the former. A drive-transmitting body made fast on the driving member has on its outer periphery several radial grooves which, in turn, hold torque-transmitting r... | 09/29/1981 |
