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.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7364024 | Apparatus for driving and braking a cutting blade of a lawn mower An apparatus for driving and braking a cutting blade of a lawn mower is disclosed. The apparatus includes a shaft for rotating the blade, and a pulley driven by the engine. The shaft extends through a housing. The apparatus includes means for biasing the pulley towa... | 04/29/2008 |
| RE39701 | Clutch device for magnetic recording/reproducing apparatus A clutch device for a magnetic recording/reproducing apparatus for transmitting power for a tape conveying regardless of the quantity of tape wound around a reel, including a rotating central shaft installed on a main chassis, a drive pulley connected to the rotati... | 06/26/2007 |
| 7086516 | Clutch device for magnetic recording/reproducing apparatus A clutch device for a magnetic recording/reproducing apparatus for transmitting power for a tape conveying regardless of the quantity of tape wound around a reel, including a central shaft installed on a main chassis, a drive pulley connected to the central shaft, a... | 08/08/2006 |
| 7021439 | Clutch apparatus Disclosed is a clutch apparatus for use in two-phase position control, which includes a clutch housing for supporting and rotating together with the shaft and a driving gear for selectively driving the housing in a rotatable manner with the help of a clutch interven... | 04/04/2006 |
| 6974010 | Clutch mechanism A clutch mechanism includes rotation operating unit for rotating a second rotational member integrally with a first rotational member, the rotation operating unit includes a collar member installed near the second end of the operating spring, and at least one brakin... | 12/13/2005 |
| 6962093 | Noise reduction structure for power take-off unit gear assembly A noise reduction structure is provided for use with a meshing gear assembly, such as in a power take-off unit for selectively providing power to one or more rotatably driven accessories. The meshing gear assembly includes meshing input and output gears that are sup... | 11/08/2005 |
| 6866588 | One-way damper A damper includes a housing and a rotor. A portion of the rotor extends outwardly of the housing and has a gear rotatably disposed thereon. A coil spring encircles the portion of the rotor, and has an end segment secured to the gear. Rotation of the gear in one dire... | 03/15/2005 |
| 6755284 | Electrically driven parking brake actuation assembly A parking brake actuation assembly is provided including an electric motor and a first rotatable member operatively connected to the electric motor so as to enable the motor to rotate the first rotatable member in a brake applying rotational direction. The first rot... | 06/29/2004 |
| 6702080 | Clutch device for magnetic recording/reproducing apparatus A clutch device for a magnetic recording/reproducing apparatus for transmitting power for a tape conveying regardless of the quantity of tape wound around a reel, including a rotating central shaft installed on a main chassis, a drive pulley connected to ... | 03/09/2004 |
| 6700246 | Tubutor motor A tube motor with an electric motor drive with a drive shaft located in a gear box. A reducing gear with a driven shaft is located in a gear box and coupled with the drive shaft via a gear input shaft for rotary securing of the driven shaft especially whe... | 03/02/2004 |
| 6637567 | Free run clutch apparatus A free run clutch apparatus is disclosed for damping movement of a device mechanically connected to the apparatus. The apparatus includes a housing which defines an enclosure and a rotor rotatably located within the enclosure, the rotor defining a cavity.... | 10/28/2003 |
| 6488133 | Clutch system and method A soft action clutch uses a helical spring attached to a pulley at one end and free at the other end. In a relaxed state, preferably, the helical spring presses outwardly pushing a brake pad assembly against a fixed outer field cup braking the pulley. To ... | 12/03/2002 |
| 6095312 | Adjusting device Infinitely operating two-way adjusting device having a rive element 1, an output element 2 adjustable in angle by operating the drive element 1, and a stepped switching mechanism mounted between the drive and output elements 1, 2 which contains a fixing d... | 08/01/2000 |
| 5950783 | Self adjusting wrap spring clutch A self-adjusting wrap spring clutch has a spring overlying driving and driven arbors and in engagement with each. One end of the spring is loosely connected to a control collar, which surrounds the spring and at least a portion of each of the arbors, whil... | 09/14/1999 |
| 5926887 | Mode shifter for a washing machine A washing machine with an improved mode shifter comprises a basket for holding an article to be washed, a basket collar coupled to the basket, an agitator disposed within the basket, an agitator collar coupled to the agitator, a brake for reducing a rotat... | 07/27/1999 |
| 5810139 | Bicycle and a friction device for controlling a clamping roller coupling of a bicycle hub of a bicycle A friction device for controlling a clamping roller coupling for a drive device or for a back-pedal brake device connected to a bicycle hub can include a driving link with an ascending surface profile, at least one roll, a cage ring with cage arms, and an... | 09/22/1998 |
| 5605212 | Washing machine transmission clutch/brake mechanism A clutch/brake mechanism for a transmission of a washing machine which uses an upwardly moving disc brake activated by a spring clutch dependent on the direction of rotation of an associated motor to provide the agitation and the high speed spin of the wa... | 02/25/1997 |
| 5522242 | Washing machine transmission drive connection A transmission for a washing machine which uses an off center gear in combination with a rack and pinion agitation mechanism, a brake clutch, and a drive clutch to provide the agitation and the high speed spin of the washing machine. A lost motion interco... | 06/04/1996 |
| 5509284 | Washing machine transmission A transmission for a washing machine which uses an off center gear in combination with a rack and pinion mechanism, a brake clutch, and a drive clutch to provide the agitation and the high speed spin of the washing machine. The input shaft is in line with... | 04/23/1996 |
| 5485764 | Parking brake system A ratchet wheel, connected to a motor through a worm gear and a worm wheel, is supported on a pedal shaft which pivotally supports a brake pedal. The ratchet wheel engages a ratchet member mounted on the brake pedal. When the brake pedal is depressed, the... | 01/23/1996 |
| 5460252 | One-way rotary damper A one-way rotary damper comprising a housing, a rotor consisting of a braking disk accommodated in a cavity of the housing and a shaft unitary with the braking disk and projecting toward the outside of the housing, viscous oil filling the housing cavity f... | 10/24/1995 |
| 5335563 | Foot-operated parking brakes for cars and one-way dampers for use therein A one-way damper comprising, one forming member for forming an accommodating chamber, other forming member disposed opposite to the one forming member such that the one and other forming members form the accommodating chamber therebetween and the other fo... | 08/09/1994 |
| 5308154 | Braking system with nonbackdriveable actuator A vehicle braking system is provided. In a preferred embodiment, the system has an actuator frame with a bore fluidly connected to the wheel brake and to a master cylinder. A piston, mounted within the bore, is operationally associated with a non-rotative... | 05/03/1994 |
| 5275262 | Pedal parking brake device A pedal parking brake device makes it possible to provide a brake retaining state at the maximum braking position. The pedal parking brake device performs a rotational locking of a brake pedal by a coil spring provided at a rotatably supporting position o... | 01/04/1994 |
| 5170867 | Pedal parking brake Pedal parking brake. This device is provided with a supporting shaft fixed to the side of a car body, a rotary body attached to another end of the supporting shaft, a damper case interposed between the supporting shaft and the rotary body, a lock spring l... | 12/15/1992 |
| 5133437 | Wrap spring clutch with brake A self-braking electromagnetic wrap spring clutch having a wrap spring control ring and a brake control armature plate at separate locations within a common magnetic circuit. The self-braking electromagnetic clutch includes: a shaft, a driving hub rotatab... | 07/28/1992 |
| 5101944 | Positioning apparatus employing a spring clutch Apparatus for positioning a movable member, the apparatus comprising a driving shaft, a driven shaft and a clutch for engaging and disengaging the driving shaft and the driven shaft. The circumferential surface of a cam fixed around the driven shaft has s... | 04/07/1992 |
| 5090530 | Wrap spring clutch/brake unit with spring differential adjustment The tangs of the clutch and brake springs of a wrap spring clutch/brake unit are connected to separate sleeves which form the control collar of the unit. The sleeves are normally coupled for rotation in unison by an internally splined ring which may be sl... | 02/25/1992 |
| 5022505 | One-way clutch for transmitting only rotation of first member to second member A clutch is provided which comprises a first rotatable member, a second rotatable member provided for rotational movement relative to the first rotatable member, a coil spring wound around the first and second rotatable members, and a one-way brake. Rotat... | 06/11/1991 |
| 4953676 | Spring coupler A spring coupler comprises a casing, a drive member rotatably mounted within the casing including a main portion and a core portion fixedly connected thereto by staking manner, a driven member rotatably mounted within the casing including a main portion a... | 09/04/1990 |
| 4892175 | Wrap spring clutch/brake apparatus with helper clutch mechanism A wrap spring clutch/brake apparatus includes a clutch mechanism for supplying increased frictional torque at low rotational speeds to a load. The clutch mechanism is formed of an inner cylindrical-shaped member, an outer annular member disposed concentri... | 01/09/1990 |
| 4830151 | Damper comprising rotor shaft and gear sleeve having equal external diameter portions with clutch spring wound thereabout A damper for damping rotation has a construction in which a rotor having a braking plate immersed in oil disposed within a casing and a gear are coupled together by a means of a clutch spring in the form of a coil spring. When the gear is rotated in one d... | 05/16/1989 |
| 4825988 | Electromagnetically controlled spring clutch mechanism An electromagnetically controlled spring clutch mechanism for transmitting the rotating forces of an input rotating element adapted to rotate in a predetermined direction and in a direction opposite thereto to an output rotating element. According to one ... | 05/02/1989 |
| 4817771 | Spring clutch with engageable first and second helical clutch springs A spring clutch includes a driving hub attached to a drive shaft, a driven hub to which a mass to be rotated is attached, and first and second helical clutch springs which are engageable to interconnect the driving hub and the driven hub, the first helica... | 04/04/1989 |
| 4782593 | Chain saw with a stopping device A portable chain saw wherein the motor drives a hub which is coaxial with a cylindrical portion of the shaft for one sprocket wheel of the chain. A coil spring is wound around the hub and the cylindrical portion to normally transmit torque from the hub to... | 11/08/1988 |
| 4760903 | Method and apparatus for extending the life of a wrap spring clutch A method and apparatus for extending the life of a control or drive spring in a wrap spring clutch. The tang of the control spring fits into a control slot of a control collar which rotates when the clutch is actuated. When the clutch is actuated, the con... | 08/02/1988 |
| 4703841 | Adjustable electromagnetic clutch brake An electromotive control drive mechanism, in particular for industrial sewing machines, comprises a continuously drivable motor and a brake/clutch unit connected therewith. A clutch disk connected in a rotationally fixed manner with a driven shaft can, by... | 11/03/1987 |
| 4697673 | One-way damper A one-way damper has a rotor which is provided with a braking disc at one of its ends. The braking disc is received in a housing of the damper and the housing is filled with oil. The other end of the rotor extends outward from the housing and has a gear l... | 10/06/1987 |
| 4696515 | Infinite manual seat back recliner A seat back recliner mechanism is disclosed including a serially arranged gear train having a pair of infinitely adjustable spring coil clutches serially arranged by way of a reduction gear. One clutch absorbs rotational loading on the seat back in one di... | 09/29/1987 |
| 4651854 | Spring coupler brake A spring coupler including a drive member, a driven member, a pair of coil springs interconnecting the drive and driven members, and a cylindrical housing providing a unidirectional drive either clockwise or counter-clockwise. The drive member has a pair ... | 03/24/1987 |
