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| Number | Title | Issue Date |
| 8118143 | Centrifugal emergency brake An emergency braking assembly that stops the rotation of a shaft in the event that the speed of the shaft exceeds a predetermined speed. The braking assembly includes a flanged mounting ring that is mounted to a housing where the shaft extends through the ring, and ... | 02/21/2012 |
| 7073772 | Motor brake structure and manufacturing method thereof Disclosed is a motor brake structure including: a rotor; a rotor axis relatively fixed to the rotor; a soft material brake having a central portion thereof into which the rotor axis is inserted, the soft material brake rotating identically with the rotor axis; and a... | 07/11/2006 |
| 6988593 | Elevator governor A centrifugally activated device for controlling the speed of movement of an elevator cab includes the capability of controlling upward and downward movement. A first stopping device is associated with at least one elevator sheave. A second stopping device preferabl... | 01/24/2006 |
| 6790308 | Method and apparatus for making clutch plate with multi segment friction material A method and apparatus for making a friction clutch plate includes cutting a supply of friction material into a plurality of individual shaped segments. The cut segments are moved in a first horizontal linear direction to a position adjacent a shuttle assembly. At l... | 09/14/2004 |
| 6196485 | Dual-bearing reel centrifugal braking device A centrifugal braking mechanism of a dual-bearing reel for braking under centrifugal force the reel spool fitted rotatively in the body of the reel. The centrifugal braking mechanism achieves simple adjustment of braking force, by which adjustment distinc... | 03/06/2001 |
| 6079489 | Centrifugal backspin retarder and drivehead for use therewith A backspin retarder for a shaft comprises a brake mechanism including a stationary brake member and opposed brake members rotatable with the shaft and movable between braking position in which the movable brake members engage the stationary brake member a... | 06/27/2000 |
| 6079524 | Automatic stop mechanism for a rolling door An automatic stop mechanism for a rolling door includes two brake members mounted to the stop member which is removably engaged with the fixture, the stop member having a flange disengagably contacting the inclined flange to normally stop the rolling door... | 06/27/2000 |
| 6003798 | Adjustable brake for baitcast reel A braking apparatus for a fishing reel and a braking element assembly preferred for use in the inventive apparatus. The inventive braking apparatus comprises: a contacting structure; a plurality of braking elements for contacting the contacting structure ... | 12/21/1999 |
| 5950949 | Adjustable brake for baitcast reel A braking apparatus for a fishing reel comprising: a plurality of braking elements; a braking element assembly for retaining the braking elements in radial paths about a rotational axis such that a centrifugal force imparted to the braking elements by rot... | 09/14/1999 |
| 5931263 | Quasi-elliptical bidirectional progressive safety An elevator safety based on having the elevator lift-rod, under the influence of the elevator governor, cause to rotate approximately elliptical cams, called quasi-elliptical cams. The cams are wider in one orientation, just as an ellipse has a major axis... | 08/03/1999 |
| 5909848 | High pressure liquid rotary nozzle with coil spring retarder A high pressure liquid nozzle housing encloses a self-rotating speed-controlled nozzle. A cylindrical sleeve in the housing forms an inwardly facing friction surface engageable by a nozzle-driven friction generating speed control mechanism to provide incr... | 06/08/1999 |
| 5904229 | Brake assembly A brake assembly by means of which rotational motion and also linear motion, i.e. faulty motion of lifting platforms, especially dropping, is braked. The assembly comprises a braking gear (20, 21) fitted onto axle (4), a coupling (25, 26) to transmit rota... | 05/18/1999 |
| 5577587 | Centrifugal clutch A centrifugal clutch for a power driven working tool such as a chain saw, hedge trimmer, or the like having a hub portion (10) adapted to be connected to an engine shaft, and at least two clutch shoes (16, 17) rotatably journalled on the hub portion. The ... | 11/26/1996 |
| 5542619 | Fishing reel of the multiplier type A fishing reel of the multiplier type has a frame, a line spool rotatably mounted in the frame, a brake ring coaxial with the line spool and connected to the frame, and a friction brake device connected to the line spool and adapted, in cooperation with t... | 08/06/1996 |
| 5483849 | Governor with pulley A governor is provided with a pulley comprising a casing, a pulley rotatably supported by the casing and a long member wound around the pulley. The pulley is rotated when the long member is pulled. A spring member is provided for urging the pulley in the ... | 01/16/1996 |
| 5393005 | Brake structure for a reel A brake structure for a reel comprising a rotary member rotatable in a spool transmission system, a centrifugal brake device including a brake block radially slidably mounted on the rotary member and a brake shoe attached to a fixing structure, and a posi... | 02/28/1995 |
| 5280828 | Speed governor for rotational drive A speed governor is enclosed within a generally cylindrical housing which defines an interior cylindrical surface. A rotor is rotatably supported within the enclosure of the housing and is coupled to a power coupling belt by a pulley formed in the rotor s... | 01/25/1994 |
| 5222578 | Safety brake A safety brake of the type for use in hoist. As a hoist cage descends or ascends faster than a predetermined safety speed, a corresponding high speed motion is transmitted to a main shaft of the safety brake through a input pinion gear connected to the ma... | 06/29/1993 |
| 5135083 | Input responsive damper According to the invention, there is provided an input responsive damper comprising a worm wheel for being rotationally driven by an object of damping, a worm for being rotated by the worm wheel, a guide for movably guiding along the axis of the worm a wo... | 08/04/1992 |
| 5052255 | Speed brake A radial arm saw assembly (10) includes a fixed position support (12) and a power saw (22) mounted on the support (12) for reciprocating movement relative thereto. The saw (22) includes a blade (28) and a drive mechanism for powering movement of the blade... | 10/01/1991 |
| 4993276 | Drive assembly with overspeed brake A drive assembly brake is mounted in the gearbox connecting a motor driven input shaft to an output shaft, the output shaft being connected by a tubing string to a submersed rotary pump. The gearbox includes an output shaft housing portion defining an oil... | 02/19/1991 |
| 4938435 | Personnel lowering device A personnel lowering or descent control device. The device includes a housing adapted to be secured to a person intending to descend from a higher to a lower elevation, and containing a line adapted to be secured at one end to a fixed point at said higher... | 07/03/1990 |
| 4905797 | Centrifugal brake A centrifugal brake is disclosed which comprises centrifugal shoes which cooperate with supplemental weights. Each supplemental weight has a ring-type basic shape and, by means of a ring part, extends along the centrifugal shoe to be affected. In addition... | 03/06/1990 |
| 4903810 | Clutch shoe construction and method of making same An improved clutch shoe of the type that is mounted on the rotor of a centrifugal clutch for coupling engagement with an outer clutch housing. The shoe is formed by two similar L-shaped shoe half sections which are stamped of sheet metal. Each shoe half s... | 02/27/1990 |
| 4856623 | Overspeed brake An overspeed brake mounted on an elevator cage includes a shaft that carries a pinion engageable with a rack so that linear movement of the cage produces rotation of the shaft. A carrier rotated by the shaft has two pivotably mounted dogs thereon that mov... | 08/15/1989 |
| 4838333 | Roller blind with a centrifugal-mass brake located outside the roller and an end support containing the brake A roller blind comprising a horizontal roller for supporting the blind and mounted for rotation about its own axis, a blind having an upper edge fixed to the roller and a free lower edge, resilient means tending to bias the roller towards a position in wh... | 06/13/1989 |
| 4809823 | Braking device for a vehicle Braking device for a vehicle, comprising a mechanism for driving at least one friction member in frictional engagement with a rotary member to be braked, the mechanism comprising a wedge (28) movable in a first axis in order to shift an actuating member (... | 03/07/1989 |
| 4703186 | Hand-held scanner with a speed control device A hand-held scanner, namely, a hand-operated optical reader, capable of selectively and partially reading a necessary portion of a document. The hand-held scanner is equipped with a speed control device capable of producing a load for controlling the movi... | 10/27/1987 |
| 4616737 | Buffer device A buffer or damping device affixable as a unit to a rotating gear 22. The buffer includes a first gear 2, 3 engaging the rotating gear and a geared one-way clutch 4. The clutch is linked to a worm 7c on a shaft 7. A damping member 8 is fixed to the shaft ... | 10/14/1986 |
| 4595198 | Centrifugal brake for exercise machine An exercise machine primarily used in exercising and strengthening muscles and ligaments not normally affected by the standard dynamic and/or isometric approaches. The machine causes the user to work against a centrifugally operated brake which increases ... | 06/17/1986 |
| 4582179 | Centrifugal brake assembly A speed governing mechanism is provided utilizing plano-centric gearing and centrifugal braking. An outer cylindrical member serves as a cable drum and is rotated by playing out of the cable. A central shaft is fixedly mounted for supporting the assembly.... | 04/15/1986 |
| 4572333 | Speed governing and decoupling drive mechanism A decoupling and speed governing mechanism is disclosed for a spring returned drive train driven by a stepper motor. A pinion assembly in the drive train is rotatably coupled to the rotor by dogs on the assembly which engage spokes in a rotor in the motor... | 02/25/1986 |
| 4556155 | Elevator governor A flywheel or disc rotates around a circular stationary surface, for example, a shaft, the disc is configured relative to the stationary surface so as to define the tapered area or gap at diametrically opposite positions. Two flyweights that are mounted o... | 12/03/1985 |
| 4533026 | Device which can brake and/or stop a load secured to it and which falls, notably an anti-fall safety device A load carrying device, movable along a rope, has a casing formed of two cheeks, a shaft supported on the casing, and a pulley supported on the shaft. Two diverters are disposed on opposite cheeks of the casing so a rope enters the device on one diverter,... | 08/06/1985 |
| 4500048 | Centrifugal brake device, especially for the automatic winding of an electrical cable In a device with a centrifugal brake, in particular for the automatic winding up of an electrical cable for an electrically driven apparatus on a rotatable drum, that is journalled with its hub on a pivot spindle standing on a base plate and is braked on ... | 02/19/1985 |
| 4456805 | Portable turntable for use in microwave ovens A portable turntable apparatus for use in microwave ovens which is used as a supporting base for a container of food which is cooked within the oven and adapted to gradually rotate the same, the apparatus including a motor including metallic materials whi... | 06/26/1984 |
| 4448290 | Safety device for a cable wound drum The invention relates to an improved safety device for stopping cable payout in an overspeed condition, and particularly to a safety device for securing an object from falling because of failure of a hoisting device. According to the invention, an inertia... | 05/15/1984 |
| 4448284 | People rescue device This invention relates to a device for escaping from buildings in case of fires or other emergencies. The device enables persons to be rescued to leave the building by descending vertically along the external building walls. The device is made up of a clo... | 05/15/1984 |
| 4258832 | Automatically resetting safety brake Antifrictional screws are used to permit the resetting of safety brakes of the type used in hoists. As in prior brakes, centrifugally operated dogs connect braking members, but in the present brakes the dogs also engage actuating members of the antifricti... | 03/31/1981 |
| 4254854 | Centrifugal clutch shoe mounting arrangement A clutch construction has an improved arrangement for pivotally mounting a pair of centrifugally actuated clutch shoes on the drive rotor assembly of the clutch. A backing plate and drive flange are mounted in a spaced axial relationship with respect to e... | 03/10/1981 |
