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...During the Civil War, the Confederacy established its own Patent Office which issued 266 patents, a third of which concerned implements of war.
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| Number | Title | Issue Date |
| 7938235 | Brake and media device employing the same A brake includes a braking portion for braking a rotatable element, a swinging portion secured with the braking portion, a resilient portion integrally formed with the swinging portion for generating a restoring force to make the braking portion contact the rotatabl... | 05/10/2011 |
| 7267213 | One-way clutch A one-way clutch is proposed which is low in surface pressures and durable. It includes an inner ring having a cylindrical outer surface, and an outer ring having a cylindrical inner surface defining a wedge-shaped space in cooperation with the cylindrical outer sur... | 09/11/2007 |
| 7219793 | Apparatus, arrangement and method for braking A braking device for a pallet intended to run in a conveying track. The braking device includes a matrix and a braking element. The matrix includes the support service and exterior surface and a recess having various screws and openings. The braking element includes... | 05/22/2007 |
| 7207245 | Screw-locking wrench A tool comprises a first handle and a second handle, each handle extending from a gripping end portion to a working end portion, the first handle having first screw threads disposed circumferentially about an inner portion of a first through-hole at the working end ... | 04/24/2007 |
| 7207889 | Damper mechanism A damper mechanism 6 is provided to transmit torque while absorbing and damping torsional vibrations. A small coil spring 45 achieves characteristics of a low rigidity in a small torsion angle region of the torsion characteristics when compressed by ro... | 04/24/2007 |
| 7191876 | Rotation-retarding device with direct engagement The rotation-retarding device includes a first element and a second element having a rotary motion to be retarded relative to each other. The first element includes a block of flexible material (106), the second element (107) is able to locally deform ... | 03/20/2007 |
| 6997295 | Clutch having elements capable of independent operation A freewheeling clutch includes torque transmitting elements disposed between an inner race and an outer race. The elements include active surfaces that may be defined by an angularly variable radius of curvature that varies with respect to roll angle at an increasin... | 02/14/2006 |
| 6928694 | Apparatus for controlling a door Door check device for a vehicle door, movable from a closed position in a door frame to a plurality of different open positions and held in the open positions, includes a strip connected to the door or door frame and a braking mechanism connected to the other of the... | 08/16/2005 |
| RE38498 | One-way clutch apparatus A one-way clutch apparatus comprising a driving member having a plurality of recesses, a corresponding plurality of biasing members disposed in the recess, a corresponding number of keys or struts disposed over the biasing members in the recesses, and a driven membe... | 04/20/2004 |
| 6564911 | Braking assembly The invention relates to a braking assembly for permitting axial rotation of a shaft in a first direction and inhibiting axial rotation of the shaft in a second, opposite direction, comprising: a hydraulic clutch having a torque generating member and a to... | 05/20/2003 |
| 6536571 | Split locking sprag A split locking sprag is used as a locking element between an inner race portion and an outer race portion which are moved or driven relative to each other, and has a release linkage that allows the sprag halves to be moved relative to each other to chang... | 03/25/2003 |
| 6217452 | Direction-dependent driving coupling between the rotor of a permanent-magnet synchronous motor and the working part A direction-dependent driving coupling between the rotor of a permanent-magnet synchronous motor and a working part. The coupling comprises at least one first eccentric driving tooth and at least one cantilevered elastomeric element which are rigidly coup... | 04/17/2001 |
| 6059084 | Sprag clutch assembly A spray clutch assembly has a first disc having an exterior surface and a second disc spaced apart from the first disc in a generally parallel relationship. A plurality of sprags are circumferentially spaced apart and pivotally mounted between the inner s... | 05/09/2000 |
| 5967267 | Roller unlocking sprags A roller type sprag member consisting of three main elements, an outer roller half section, an inner roller half section, and an assembly-location pin. The sprag locks using roller locking techniques in a manner well known in the case of a three-dimension... | 10/19/1999 |
| 5896967 | One-way clutch A one-way clutch is provided with a retainer formed with a holding hole for holding a sprag biting between an outer race and an inner race. The retainer further has a sprag restraining piece intervening between the outer race and the inner race. The sprag... | 04/27/1999 |
| 5894915 | One way clutch A one way clutch has a retainer for receiving a sprag intervening between an outer ring and an inner ring. The retainer includes a cylindrical structural body; a stepped flange which radially protrudes from one end of the structural body so that it commun... | 04/20/1999 |
| 5868226 | Screw-released roller brake A screw-released roller brake including an input drive assembly, an output drive assembly, a plurality of locking sprags, a mechanical tripper nut for unlocking the sprags, and a casing therefor. The sprags consist of three dimensional (3-D) sprag members... | 02/09/1999 |
| 5806644 | Freewheeling idler wheel hub An idler wheel hub with freewheel mechanism, which encompasses an inner freewheel ring and an outer freewheel ring. Located radially between the freewheel rings are an inner cage and an outer cage. These cages are provided with recesses so that clamping b... | 09/15/1998 |
| 5779014 | One-way clutch mounting structure A one-way clutch includes an outer ring 8, an inner ring 9 and a plurality of clutch members 10 interposed between the outer and inner rings 8 and 9. The present invention provides a one-way clutch mounting structure by having the outer ring of one-way cl... | 07/14/1998 |
| 5769188 | Rotary damper with self-standing mechanism A rotary damper for use with a toilet lid has a damper shaft rotatably supported by a damper housing, a collar of synthetic resin fitted over the damper shaft for rotation therewith, and a casing of synthetic resin fixed to the damper housing and disposed... | 06/23/1998 |
| 5765670 | One way clutch In a one way clutch, a sprag does not always turn around a center of curvature thereof, failing to move smoothly because the sprag contacts an outer ring and an inner ring on the surface. Accordingly, switching from idle rotation to locking of the clutch ... | 06/16/1998 |
| 5722522 | Overrunning multiple-row sprag clutch An overrunning multiple-row sprag clutch is provided comprising an annular outer race, an inner race positioned concentrically within the outer race to define an annular space therebetween, and two or more discrete annular sprag rows, each having a plural... | 03/03/1998 |
| 5690032 | Device for preventing reverse run of carrier of trolley conveyor A reverse run prevention device is provided for use in a trolley conveyor having carriers adapted to run and stop on a rail via engagement and disengagement with pusher dogs on a drive chain. The reverse run prevention device includes an over-running clut... | 11/25/1997 |
| 5676226 | Sprag and roller one-way clutch assembly A sprag and roller one-way clutch assembly (10) including an outer cage (12), an inner cage (14) and a ribbon spring (16) for use with a clutch having outer and inner races (70, 72). The outer and inner cages (12, 14) each defines a plurality of correspon... | 10/14/1997 |
| 5642795 | One-way clutch A one-way clutch comprises a first ring, a second ring spaced from the first ring to define an annular space therebetween, engaging members disposed in the annular space, at least one holding member for holding the engaging members, and a biasing member f... | 07/01/1997 |
| 5632363 | One-way clutch A one-way clutch according to the present invention comprises an outer race fitted in a housing member, an inner race, a plurality of engaging members arranged between the outer race and the inner race, a cage for holding the engaging members, a spring fo... | 05/27/1997 |
| 5601167 | One-way clutch A one-way includes a drag strip between a retainer and a driver ring to ensure transmission of rotation of the driver ring to engagement members such as sprags even when the driver ring is abruptly accelerated or is driven at a high speed. The drag strip ... | 02/11/1997 |
| 5597057 | One-way clutch apparatus A one-way clutch apparatus comprising a driving member having a plurality of recesses, a corresponding plurality of biasing members disposed in the recesses, a corresponding number of keys or struts disposed over the biasing members in the recesses, and a... | 01/28/1997 |
| 5520268 | Friction type resistance booster chain A friction type resistance booster chain includes a locating structure and a set of chain pieces arranged staggeringly into an upper and a lower row and fitted in the locating structure. Each of two adjacent chain pieces has a force receiving surface bein... | 05/28/1996 |
| 5482144 | Three-dimensional roller locking sprags A torque coupling sprag system which provides contact between the sides of at least one groove and at least two contact surfaces angled with respect to the central axial direction of at least one rotatable 3-D sprag member located between a drive member a... | 01/09/1996 |
| 5337869 | Sprag retainer with rotational restraint A sprag retainer includes a cross member central portion which is biased into contact with an inner peripheral surface of an outer race. The central portion is spaced slightly radially outwardly from axial ends of the retainer. Thus, only the central port... | 08/16/1994 |
| 5232072 | Center-free large roller bearing A heavy-duty open-center anti-friction bearing (1), especially for mounting on generator sheds in wind-powered electricity-generating plants. It comprises two races (2 and 3) with friction-reducing structures (4) rolling between them and with a brake that... | 08/03/1993 |
| 5000303 | One-way clutch A one-way clutch comprises an outer race where inner surface is formed with a raceway surface and an annular groove; an inner race whose outer surface is formed with a raceway surface; a plurality of wedge members interposed between the outer and inner ra... | 03/19/1991 |
| 4997070 | Retainer for one-way clutch In a one-way clutch composed of radially spaced, mutually rotatable and concentrically disposed first and second rotary members, and torque transmitting members arranged between the first and second rotary members to transmit torques therebetween, an annu... | 03/05/1991 |
| 4907679 | Catch device for a roll-up door, grate, grill or the like A catch device to prevent a rapid rotation of the shaft of a roll-up door or the like has a toothed brake wheel received in an asymmetric clamping ring in a housing. A pawl on the clamping ring engages in a toothed recess of the brake ring at excessive sp... | 03/13/1990 |
| 4875564 | Spray clutch with a double cage A double cage structure for a freewheel sprag clutch in which the inner cage ring is formed of metal and the outer cage ring is formed of a plastic material.... | 10/24/1989 |
| 4836340 | Anti-backlash device for a pump shaft The present invention is concerned with an anti-backlash device for a pump shaft comprising an asymmetrical idler (3) pivoting around a fixed axis (4) and an elastic device (5) which produces a restoring force that tends to press the idler (3) against the... | 06/06/1989 |
| 4815759 | Vehicle with steering-controlled torsion bar stabilizer An anti-sway system for a steerable vehicle of the type employing a torsion bar suspension. Operatively coupled to the torsion bar for each of the vehicle's steerable wheels or skis is a mechanism for increasing the effective spring rate of the suspension... | 03/28/1989 |
| 4764041 | Multifunctional cassette with web brake for a printer A multifunctional cassette (1) for a printer (131), in which the cassette (1) that can be arranged in the printer (131) is provided with first, second and third chambers (31, 35, 37). The second chamber (35) and the first chamber (31) can accommodate a su... | 08/16/1988 |
| 4742896 | Brake means Brake means at devices for converting a rotary motion into a linear one by means of a threaded spindle (1) and a member (4) arranged in engagement with the threads thereof, and moving along this at the rotation of the spindle (1). The brake means consists... | 05/10/1988 |
