Did You Know...
...When G.G. Hubbard learned of his future son-in-law's invention, he called it "only a toy." His daughter was engaged to a young man named Alexander Graham Bell.
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| Number | Title | Issue Date |
| 7066503 | Springless oven door latch assembly A springless motorized door latch assembly for locking an oven door in a locked and sealed position for purposes of cleaning the oven. A motor and cam cause a latch member to move between three different positions. In one position the latch member prevents the oven ... | 06/27/2006 |
| 7025185 | Torque releasing device In a torque releasing device, a bearing is composed of an angular contact ball bearing, raceway surfaces of which are applied with a pre-load in order that the occurrence of fretting at the bearing during torque transmission may be prevented. Thus is ensured that th... | 04/11/2006 |
| 6398226 | Chuck with one-way lock A chuck includes a generally elongated body having a tail section configured to rotate with the drive shaft and a nose section having an axial bore formed therein. A plurality of jaws are movably disposed with respect to the body to and away from the axia... | 06/04/2002 |
| 6098485 | Lead screw actuator A high resolution actuator is provided which can be used in extreme environments, e.g., at extremely low temperatures. The actuator uses electromagnetic forces to actuate levers which then cause rotation of a lead screw. The actuator uses very small gaps ... | 08/08/2000 |
| 5918510 | Rotary indexing apparatus A rotary indexing apparatus includes a base, a table rotatably supported on the base, a drive unit for rotating the table, and a clamp ring fixed to the base to surround the table. Interference fit is established between the clamp ring and the table in or... | 07/06/1999 |
| 5873443 | Shiftable device acting as a brake or clutch, such as a frictional brake or a frictional clutch A shiftable device which acts as a brake or coupling, such as a frictional brake or a frictional clutch, includes a first component and a second component and a pressure ring arranged between the first and second components, wherein the pressure ring is c... | 02/23/1999 |
| 5649613 | Rotation clutch for the drive of cleaning spirals A rotary clutch (1) for the drive of cleaning spirals (6) for the cleaning of pipelines has a set of clutch jaws (2), which can move radially with respect to the axis (A--A) of the clutch, each of these jaws having an inner friction surface for carrying a... | 07/22/1997 |
| 5601491 | Quiet appliance clutch The clutch is an integral gear stage in a subfractional horsepower motor gear train that is used in an appliance such as an icemaker or cam-operated timer. The clutch has an inner member with arc-shaped springs that carry curved protrusions and an outer m... | 02/11/1997 |
| 5577583 | Free wheel double lock clutch mechanism A clutch providing lost motion between a motor operated mechanism for operating a vehicle door lock and a manually operated mechanism for operating the vehicle door lock. The clutch includes a cam member rotatable about an axis between a first "locking" p... | 11/26/1996 |
| 5362293 | Drive clutch for a centrifuge rotor A clutch assembly for a centrifuge rotor includes at least one pair of complementary clutch elements each operatively associated with the rotor. Each element in the pair is preloaded into contact with the drive shaft. A torque applied to the shaft in eith... | 11/08/1994 |
| 5085306 | Releasable coupling for shaft elements A coupling for establishing a releasable torque transmitting connection between a hollow shaft element (1) and a journal element (2) positioned therein, by coupling members (13) provided in apertures in the hollow shaft element and radially movable therei... | 02/04/1992 |
| 4844677 | Locking device A locking device is formed of a base, a grabbing member and a plurality of arcuate legs flexibly connecting the base and grabbing member. The grabbing member is operatively deformable by relative movement of the base and grabbing member toward and/or away... | 07/04/1989 |
| 4836346 | Quickly-releasable clutch A quickly-releasable clutch, comprises a linearly-movable member formed with a spiral thread on its outer surface; an angularly-movable member; an inner sleeve secured to the angularly-movable member to overlie the linearly movable member; a ball received... | 06/06/1989 |
| 4795013 | Coupling assembly and friction shoe therefor A coupling assembly which includes an inflatable annular tube, a plurality of friction shoes removably attached to the tube so that the shoes move radially as the tube is inflated and deflated. The shoes include a friction pad bonded to one side of a back... | 01/03/1989 |
| 4623191 | Rotating and positioning tool for axially symmetrical workpieces, especially steering tie rods in motor vehicles Rotating and positioning tool for axially symmetrical workpieces, especially for steering tie rods in motor vehicles. A housing with a recess for the introduction of a workpiece accommodates a clamping mechanism with a crown gear that is positioned and dr... | 11/18/1986 |
| 4497398 | Fluid operated clutch or brake A brake or clutch having two relatively rotatable members and a hollow fluid-distensible resilient annular tube frictionally engaging one of the members. The tube is split and the ends butted together. And at the butt ends of the tube means are provided f... | 02/05/1985 |
| 4491206 | Braking device A braking device with two braking members for frictional engagement with a surface and a brake release linkage, a part of which is pivotable about two positions. A feature is provided to cause pivotal movement of the part in a first sense upon application... | 01/01/1985 |
| 4460078 | Torque release clutch A system for transmitting motion between a driving component and a driven component includes a torque release clutch for transmitting motion between the components until a predetermined amount of force is required to do so, whereupon the clutch releases. ... | 07/17/1984 |
| 4384626 | Clamp-on stabilizer A clamp-on stabilizer fixes the lateral position of a drill string in a borehole. The stabilizer includes a gripping sleeve with slotted and tapered ends, a stabilizer body receiving the sleeve, and a tubular locknut threaded into the body. The lower end ... | 05/24/1983 |
| 4273229 | Elastic mounting for high-speed rotor A mounting for a shaft of a tool rotating at high speed comprises a rotatably journaled tube with an axial bore of a diameter exceeding that of the tool shaft. The latter is held in that bore by resilient inserts, such as soft springs or O-rings, whose el... | 06/16/1981 |
| 4269423 | Brake and wheel assembly A brake and wheel assembly for vehicles having small diameter wheels and heavy axle loading requiring high capacity braking is disclosed. An axle extension shaft cantilevered transversely on a vehicle frame mounts rotatably a dual wheel hub which also ser... | 05/26/1981 |
| 4243128 | Electromagnetic clutches An electromagnetic clutch wherein a rotational force is transmitted between a first rotatable member and a second rotatable member by a magnetic attraction of an armature supported on one of the first and second rotatable members to the other member. The ... | 01/06/1981 |
| 4197930 | Air clutch with centrifugal force cancellation device An air clutch has a rotatable drum positioned within a rotatable rim and an air bellows attached to the interior surface of the rim and expandable with the supply of compressed air to urge a plurality of friction blocks into contact with the exterior surf... | 04/15/1980 |
| 4184572 | Device for temporarily rigidly uniting a free circular element with a fixed circular element A device for temporarily holding fast a free circular element with respect to a fixed circular element having circular segments with tangential ramps and a rigid ring with rollers axially rotatable thereon for local thrust against the ramps to cause locki... | 01/22/1980 |
| 4046240 | Centrifugal friction clutch A double-arm, sharply angled lever is pivoted at its fulcrum to the drive element of the clutch, and has one arm extending generally in a direction to the center of rotation of the driven element, and biassed by a spring force to engage the driven element... | 09/06/1977 |
| 3993172 | Cooled, externally engaged drum brake A brake is disclosed for use with motor vehicles and particularly with motor vehicle trailers having heavy axles. The brake includes a brake ring which is connected securely to the wheel hub. At least two brake shoes act on the external peripheral surface... | 11/23/1976 |
| 3986586 | Brake mechanism and cooling structure therefor A brake, particularly adapted to stop feeder rolls of a paperboard partition assembly machine quickly, of the drum and embracing arms type, the two brake arms spring-urged into contact with the drum, with cam-operated means for separating brake shoes from... | 10/19/1976 |
