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| Number | Title | Issue Date |
| 7311179 | Elevator dampening system A dampening device for use with elevator cars or similar devices prevents damage to objects or persons within the elevator car upon failure of a drive chain. A hydraulic motor regulates the rate of descent. The dampening motor is monitored constantly using a pressur... | 12/25/2007 |
| 7226038 | Load arrestor, lifting system and method A load arrestor for use in conjunction with a primary lift, the load arrestor comprising a spool about which winds a safety line attached to a load supported at least in part by the primary lift, a lock mechanism comprising a lock plate connected to and rotatable wi... | 06/05/2007 |
| 7128189 | Equipment for engaging a safety braking device for a lift cage A tripping device for engaging an elevator lift cage safety brake has actuating levers arranged at a rotary axle for engaging safety brake wedges of the safety braking device. Each actuating lever has a longitudinal slot matched to the diameter of the rotary axle, w... | 10/31/2006 |
| 6752246 | Speed governor and elevator employing the speed governor In a speed governor linkage mechanism that is displaced by centrifugal force acting on rotary weights, a balancing weight is provided in addition to speed adjustment spring for generating balancing force in opposition to the centrifugal force. When the speed of the ... | 06/22/2004 |
| 6209690 | Load brake A load brake having a load shaft, a flange-like pressure plate fixedly mounted onto the load shaft, and a cogwheel arranged on the load shaft. A tension device produces an axial motion and force in the cogwheel as the wheel rotates with respect to the loa... | 04/03/2001 |
| 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 |
| 6086005 | Fishing reel with magnetic force spool rotational-speed control during spool free rotational state A fishing reel is provided which is capable of preventing noise and rapid change in the rotational speed of the spool which take place when a casting operation is performed, controlling backlash of a fishing line by a person even if the person is not skil... | 07/11/2000 |
| 5967443 | Speed governor for a rotational drive A speed governor for a rotational drive includes a rotor arranged to be driven by the rotational drive and located within a housing having a cylindrical inner side wall and an end wall. Centrifugal brake shoes are pivotally mounted on the rotor and contac... | 10/19/1999 |
| 5934588 | Fishing reel with centrifugal brake A fishing reel of the multiplier type has a frame, a line spool rotatably mounted in the frame, a brake disk coaxial with the line spool and non-rotatably but axially displaceably arranged in the frame, and a brake unit connected to the line spool and ada... | 08/10/1999 |
| 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 |
| 5848781 | Balancing hoist braking system A pneumatically operated balancing hoist includes a housing forming a gas chamber, an inlet for communicating with the gas chamber, a sliding piston, and a rotatable longitudinally movable cable drum. The rotatable longitudinally movable cable drum contai... | 12/15/1998 |
| 5540306 | Adjustable centrifugal brake The variable centrifugal brake is used for providing a load and for dissipating energy coming from a power input. The brake comprises a frame provided with a driven hub connectable to the power input. A floating plate is mounted on the hub with one side c... | 07/30/1996 |
| 5484043 | Speed responsive brake device In order to prevent serious damage to a flight control system in a failure mode, a failure protection unit includes an input shaft connected to a shaft of the flight control system with the input shaft normally being operably associated with a plunger hav... | 01/16/1996 |
| 5295562 | Centrifugal brake The present invention provides a centrifugal brake which, according to one aspect of the invention, has a center hub from which extend flex members terminating in tabs extending from the flex members. Disposed on the opposite side of each flex member from... | 03/22/1994 |
| 5287950 | Fall-arrest apparatus with constant winch braking A fall-arrest apparatus comprises a drum (1) which holds a cable (3) for attachment to a load and has a brake (7-11, 13-15) which automatically stops the drum if it exceeds a certain unwinding speed. The apparatus incorporates a winch mechanism (16-20) by... | 02/22/1994 |
| 5141085 | Hoist load brake The invention involves a hoist for raising and lower loads. The hoist includes a drive motor, gearing, a load brake and a cable-winding drum. The drum has an end with a splined annular member slidably engaging a similar splined annular member of a drum-co... | 08/25/1992 |
| 5137126 | Electromechanical control having a centrifugal structure The invention concerns an electromechanical control having a centrifugal structure comprising a shaft (22) driven in rotation by an electric motor (20) and defining an axis, at least two flyweights (38) capable of moving under the effect of a centrifugal ... | 08/11/1992 |
| 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 |
| 4846313 | Fall-arrest apparatus A fall-arrest apparatus comprises a cable drum (2) and a friction brake including a rotatable brake disc (14) which is pressed against a stationary brake ring (15). In the event that the drum accelerates in the unwinding direction to a certain speed, pawl... | 07/11/1989 |
| 4659074 | Passive-type treadmill having an improved governor assembly and an electromagnetic speedometer integrated into the flywheel assembly A passive treadmill having a governor mounted upon one end of a treadmill roller to adjustably limit the rate of speed of the treadmill belt. Resilient flexible rotating springs flex due to the centrifugal force developed during rotation, the magnitude of... | 04/21/1987 |
| 4627519 | Hydraulic disk brake having a braking torque-to-hydraulic force converter A hydraulic disk brake apparatus especially useful for braking the rotation of a hoisting drum used to support a drill string in a well. The apparatus comprises a hydraulic fluid pump having an actuating lever, a pair of brake calipers having hydraulicall... | 12/09/1986 |
| 4610123 | Apparatus for covering bales in baling presses An attachable apparatus for covering round bales of agricultural harvested goods with a section of a covering inside a molding chamber of a baling press includes a supply roll freely rotatable about a tranversal axis and having an adjustable braking force... | 09/09/1986 |
| 4574924 | Rotary shaft speed limiting arrangement A fluid controlled rotary shaft speed limiting arrangement has a brake disk secured to the shaft for rotational movement therewith. A braking arrangement exerts a braking force on the brake disk according to the amount of fluid pressure present in a brake... | 03/11/1986 |
| 4544152 | Passive-type treadmill A passive treadmill having a governor to adjustably limit the rate of speed of the treadmill belt. Resilient flexible rotating blades flex due to the centrifugal force developed during rotation, the magnitude of the centrifugal force being a function of t... | 10/01/1985 |
| 4531617 | Overspeed safety braking device An overspeed safety braking device comprising an input shaft, the speed of which is to be braked when it exceeds a limit value, a rotary friction brake having a fixed part and a rotary part, the input shaft being permanently coupled for rotation with the ... | 07/30/1985 |
| 4482042 | Retarder device for moving objects A retarder device for applying gradually increasing braking force to a moving object such as a pallet rolling on a gravitationally actuated conveyor system. The device produces a three-stage application of braking force to the moving object as the object ... | 11/13/1984 |
| 4363480 | Exercise device An isokinetic resistance exerciser in the form of a treadmill is the subject of the present invention. An improved isokinetic resistance is provided by oversized frictional members and flat centrifugal plates which respond to centrifugal forces to cause i... | 12/14/1982 |
| 4346793 | Motion snubbing device A motion snubbing device using an inertia mass, which is disposed within a housing and supported for free rotation on a shaft which is rotated with relative motion of telescoped support members. A spring plate is secured to the shaft and faces one end of ... | 08/31/1982 |
| 4257494 | Safety brake for elevators and aerial cableways A safety brake is provided for elevators, aerial cableways and the like which prevents unchecked downward travel of the cable car or the elevator cabin in case the lifting or drive cable breaks, or the transmission gear mechanism or the drive motor fails.... | 03/24/1981 |
| 4216848 | Centrifugal braking device Centrifugally activated members adapted to project outwardly by centrifugal forces when the rotational speed of a shaft to be braked reaches a predetermined level are brought into contact with a brake shoe to impart a rotational force thereto. When rotate... | 08/12/1980 |
| 4198033 | System for transmitting and/or controlling rotary motion The machines of the present invention are adapted to brake a rotor or pulley by the action of centrifugal weights or units which are arranged to produce a reactive braking action on the rotor or pulley. In one application, the machine constitutes a fire e... | 04/15/1980 |
| 4121702 | Emergency brake for rail cars An emergency brake mechanism is provided, particularly for small railway cars such as those used for monorail systems, for braking a car released by failure of the motor and main braking system. The brake mechanism includes a brake shoe with tapered surfa... | 10/24/1978 |
| 4102444 | Stepped torque rotary motion brake Rotatable discs are splined on a hub member and alternately arranged with stationary discs secured to the brake housing to form a brake disc assembly. The brake operator assembly is a combination electromagnet release, spring set assembly associated with ... | 07/25/1978 |
| 4095681 | Safety braking device for a unit moving along a surface, in particular for a lift car The safety braking device comprises a case for mounting on the unit and in which there is journalled a shaft carrying a drive wheel engaged with a surface along which surface the unit moves. Fixed brake discs prevented from rotating with respect to the ca... | 06/20/1978 |
| 4076449 | Pressure gas engine A pressure gas engine such as a compressed air turbine having a variable speed device for controlling the speed of a rotor and also having an overspeed safety device to prevent damage to the engine in the case of excess speed through malfunction. The over... | 02/28/1978 |
| 4065100 | Hoist load brake An improved load brake mechanism for hoists allows free movement of load supporting means connected with the hoist. The mechanism will stop the supporting means whenever the means achieves a predetermined velocity or acceleration. The braking mechanism al... | 12/27/1977 |
| 4036331 | Vehicle anti-skid brake control apparatus A vehicle anti-skid brake control mechanism consisting solely of mechanical components, particularly for use in two-wheel vehicles comprising a first brake device for primarily absorbing vehicle travelling energy and a second brake device for secondarily ... | 07/19/1977 |
| 3979969 | Controlled release mechanism for railway hand brake Kinetic energy incident to the trip release and consequent rapid spinning and unwinding of rotating members in a chain operated railway car hand brake mechanism is substantially dissipated by energy absorbing means which frictionally engage the rapidly ro... | 09/14/1976 |
| 3960034 | Flywheel with anti-cracking safeguard for protection against overspeed Flywheel assembly with anti-cracking safeguard for protection against overspeed, including a frustroconical shaft portion, a flywheel mounted in press-fitting engagement on the shaft portion and having a force applied thereto directed toward the end of th... | 06/01/1976 |
