Did You Know...
...that the inventor of the electric motor was a blacksmith named Thomas Davenport? Described as "a brilliantly unsuccessful inventor", Davenport invented the first rotary electric motor. In 1836 he headed out -- on foot -- from his Vermont home to file a patent application at the Patent Office in Washington, D.C. By the time he got there, he had squandered away his money and couldn't afford the $30 filing fee so he turned around and went home. When he later mailed in his application with money he'd raised, the Patent office was destroyed in a fire. He did finally get credit for his invention on Feb. 5, 1837.
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| Number | Title | Issue Date |
| 8172048 | Braking device for a robot drive and method of detecting a braking state Method of detecting a braking state of a braking device of a robot drive, having a frame device which, if required, applies braking forces to a rotating component of the robot drive by means of a first movable frame element. As a result, the braking device is shifte... | 05/08/2012 |
| 8172049 | Noise damping for a quiescent-current-actuaged, electromagnetic spring pressure brake A quiescent-current-actuated electromagnetic spring pressure brake including torque transmission sleeves disposed between a machine wall and the brake, and an axially movable armature plate having bores along its periphery to receive the torque transmission sleeves.... | 05/08/2012 |
| 8146718 | Automatic system brake The translation apparatus comprises an elongate track, an elongate fixed member and a stage. The fixed member extends parallel to the track in a fixed lengthwise position relative to the track. The stage is mounted on the track and is capable of movement along the t... | 04/03/2012 |
| 8091691 | Disk brake A disk brake for a traction machine having a damping height of a damping mechanism that can be adjusted integrally. According to one embodiment, a disk brake includes: a static iron core; a spring and a coil assembly in the static iron core; a dynamic iron core asse... | 01/10/2012 |
| 7997390 | Automatic spring-loaded brake for industrial truck An industrial truck with at least one driven wheel, which is adapted to being braked during traveling operation by means of a service brake and which is adapted to being immobilized by a parking brake, comprises a braking force generation and braking force transmiss... | 08/16/2011 |
| 7963374 | Power-off electromagnetic brake The power-off electromagnetic brake (2) attracts an armature that is pressed by a spring force to a rotating member by a magnetic attraction force that is generated by energizing an exciting coil, and brake force that is acting on the rotating member is relea... | 06/21/2011 |
| 7958977 | Segment brake The invention relates to a mounting of one or more electromagnetically bleeding spring-loaded brakes (a, b) on a machine wall or the like. The invention is characterized in that the brakes are, while distributed over the periphery on the face, act upon an axially mo... | 06/14/2011 |
| 7926629 | Handle of electromagnetic brake An electromagnetic brake includes a housing, a pin, brake springs urged against the pin, a handle pivotably secured to the pin, a coil, a moveable armature plate, a moveable friction disc, a trigger switch on the housing and including a projecting contact and a pivo... | 04/19/2011 |
| 7708123 | Spring device with capability of intermittent random energy accumulator and kinetics release trigger A spring device includes an intermittent accumulator and kinetics release trigger that gradually winds up to accumulate kinetic energy (kinetics) as driven by manual or other random intermittent kinetics, and drives a kinetics release control to trigger the spring t... | 05/04/2010 |
| 7699145 | Elevator disk brake with damping An elevator brake assembly (16) includes a plate (26) having damper assemblies (28) including at least one spring (30) for controlling movement of the plate (26) relative to a magnetic field generator (20). A biasing member ... | 04/20/2010 |
| 7604099 | Brake device for elevator Provided is a braking device for an elevator in which energy required for braking and releasing is reduced. The braking device includes a movable plunger (5), braking mechanisms (1-4, 6, 7) which are connected to one end of the movable plunger a... | 10/20/2009 |
| 7594566 | Lock device, transmission/drive unit containing such a lock device, and method for manufacturing such a transmission/drive unit Blocking apparatus, as well as a gearbox drive unit containing such a blocking apparatus, as well as a method for production of a gearbox drive unit such as this for blocking any rotary movement of a shaft (14) with respect to a housing (16) of the gea... | 09/29/2009 |
| 7591351 | Brake for a lift A self-centering brake for a lift provides for the same braking moment in the case of normal operation and in the case of failure of a brake half. The brake consists of a housing which is U-shaped in cross-section, wherein a limb of the U corresponds with a brake ha... | 09/22/2009 |
| 7438162 | Caliper brake with disengaged position The invention relates to a caliper brake for a brake disc, in particular for elevator drives. Said brake comprises a brake body that is mounted on a fixed bolt (7) in a floating manner (1) and a brake caliper (2) that impinges on the brake disc ... | 10/21/2008 |
| 7434669 | Hydraulic vehicle brake A hydraulic vehicle brake equipped with a parking brake device, in particular for motor vehicles, including a brake housing in which a hydraulic service pressure chamber is delimited by a brake piston, wherein the parking brake device acts on the brake piston and, i... | 10/14/2008 |
| 7419033 | Emergency brake device for elevator An emergency brake device for an elevator includes a brake shoe portion provided inside a sheave 1 or deflector sheave of an elevator and having a brake shoe 5a at a lower end of the brake shoe portion, the brake shoe generating a braking force ... | 09/02/2008 |
| 7354372 | Actuator for shift-by-wire automatic transmission system An electric actuator for an automatic transmission includes an adapter to transmit rotary motion between the adapter and the automatic transmission. An electric motor has an output shaft operably connected to the adapter by a gear set which includes a ring gear. The... | 04/08/2008 |
| 7341129 | Double-sided door braking equipment for a operator This invention relates to a double-sided equipment for a braking system, comprising a first braking pad, a second braking pad, a braking component, a fixing spring component, a compression spring, and an electromagnet, wherein the braking component located between t... | 03/11/2008 |
| 7337882 | Linear electromechanical screw actuator for parking brake A linear electromechanical actuator of the screw type for a parking brake including a tubular nut (22) coupled by means of an external thread to the casing (12) of the actuator and operated to perform a screwing movement about and along a longitudinal ... | 03/04/2008 |
| 7334667 | Selective actuation device Selective actuation device (1) including an actuator (5) operating on an actuation mechanism (2). The mechanism (2) is equipped with at least one shaft (7) connected to a pusher element (8) to actuate a first operating group... | 02/26/2008 |
| 7310911 | Automatic door opener with magnetic clutch An automatic door opener (10) for opening or closing a door (28) includes a motor (14) driving a drive shaft (50) and an opener arm (18) connected to the door (28) and being responsive to rotation of the drive shaft (50 | 12/25/2007 |
| 7303167 | Flight lock actuator with dual energy sources A flight-lock actuator that can be powered by two sources of stored energy when aircraft power has been switched off. A mechanical energy storage device and an electrical energy storage device provide a fully redundant energy storage system that stores sufficient en... | 12/04/2007 |
| 7299898 | Progressive safety device A progressive safety device for an elevator includes a brake unit and an actuating unit. The brake unit has a first brake shoe with first spring assemblies and a triangular rotatable support with second and third brake shoes. The actuating unit has an electromagneti... | 11/27/2007 |
| 7281612 | Brake structure for a roll-up door A brake structure for a roll-up door includes a brake drum fixed to a transmission shaft of a speed reducer. The brake drum receives a pair of brake shoes in opposite inner sides thereof. The brake shoes are pivotably connected to each other at an end of each brake ... | 10/16/2007 |
| 7245052 | Wheel hub drive A wheel hub drive for a running wheel (10) is described. The drive having a transmission (7), a motor (8) and a brake (11), such that the enveloping circle (9) of the wheel hub drive is determined by the running wheel and the trans... | 07/17/2007 |
| 7241244 | Actuator for shift-by-wire automatic transmission system An electric actuator for an automatic transmission includes an adapter to transmit rotary motion between the adapter and the transmission. An electric motor has an output shaft operably connected the adapter by a gear set which includes a ring gear. A release mechan... | 07/10/2007 |
| 7237748 | Landing gear method and apparatus for braking and maneuvering Aircraft landing gear comprised of a wheel hub motor/generator disks stack, includes alternating rotor and stator disks mounted with respect to the wheel support and wheel. The wheel hub motor/generator can provide motive force to the wheel when electrical power is ... | 07/03/2007 |
| 7227322 | Hoist with detachable power and control unit A hoist is powered by a separate power unit. The hoist unit includes: a motor, a mounting connector, a spool, webbing, auto cut-off and a first portion of a mating electrical connector. The control unit includes a hollow pole, a hook, a second portion of the mating ... | 06/05/2007 |
| 7226018 | Landing gear method and apparatus for braking and maneuvering Aircraft landing gear comprised of a wheel hub motor/generator disks stack, includes alternating rotor and stator disks mounted with respect to the wheel support and wheel. The invention can provide motive force to the wheel when electrical power is applied, e.g. pr... | 06/05/2007 |
| 7222550 | Adjusting device with automatic release mechanism An adjusting device has a carriage, at least one guide element, on which the carriage is mounted such that it can be moved, a shifting device for moving the carriage, and a securing mechanism for securing the carriage in a desired position. To provide an improved ad... | 05/29/2007 |
| 7216744 | Arc brake A disc brake which is particularly designed for arcuate travel of less than 360 degrees has pie shaped segments, i.e. segments which are not complete circles which are interleaved. Some segments are rotatable about an axis and others are stationary and have friction... | 05/15/2007 |
| 7195107 | Machine having pulley coupled to rotor and partially overlying stator, elevator system including machine, and drive method A machine includes a motor that includes a stator carrying a concentrated winding wound on teeth and a rotor rotatable about the stator. The rotor includes a tubular casing and permanent magnets, and a pulley coupled to the rotor. ... | 03/27/2007 |
| 7185743 | Drive for an elevator installation A drive for an elevator installation which drives a car and a counterweight with a supporting and driving belt includes a drive shaft and at least one drive pulley driven in rotation by a motor. An air guide element is arranged in the region between the motor and th... | 03/06/2007 |
| 7182181 | Disc brake having a fixed disc The present invention concerns a disc brake having a fixed brake disc. On each of the opposing sides of the brake disc at least one brake pad is arranged. Furthermore, the disc brake has an actuator and a clamping device. The clamping device is axially fixed in rela... | 02/27/2007 |
| 7175006 | Apparatus and method for sensing disc brake actuator position For an air-operated disc brake there is provided an internal brake actuator stroke indicator which provides an indication, readily ascertained from outside the brake caliper, of the amount of actuator stroke remaining in a disc brake apparatus before a remaining ava... | 02/13/2007 |
| 7137489 | Actuator An actuator, preferably a linear actuator for furniture, comprises a brake spring (20) in the form of a helical spring having a plurality of windings wound around a cylindrical element (10) of plastics rotatable at least during braking, said spring bei... | 11/21/2006 |
| 7137595 | Flight lock actuator with dual energy sources A flight lock actuator that can be powered by two sources of stored energy when aircraft power has been switched off. A mechanical energy storage means and an electrical energy storage means provide a fully redundant energy storage system that stores sufficient ener... | 11/21/2006 |
| 7121633 | Electric parking brake apparatus An electric parking brake control unit of an electric parking brake apparatus has an input section for receiving signals for performing automatic activation and deactivation, but does not have a determination function and a circuit for inputting signals from various... | 10/17/2006 |
| 7117748 | Sensor arrangement for force measurement A sensor arrangement for detecting mechanical forces (F) with at least one magnetic-field-dependent sensor element, in which the output signal of the sensor element depends on the deflection of a mechanical component in the magnetic field in response to the exertion... | 10/10/2006 |
| 7104367 | Modular and adaptable brake system for an elevator sheave An adjustable brake is provided that applies a braking force directly to an elevator sheave over which a cable suspends an elevator car and a counterweight. The brake includes a pair of calipers that apply a braking force to either longitudinal end of the sheave. Th... | 09/12/2006 |
