Did You Know...
...that the video game, Pong, was invented by a guy who graduated at the bottom of his engineering class? Nolan Bushnell spent more time running the games at a local amusement park than he did on his studies at the University of Utah. His dreams of working for Disney's amusement empire were dashed when the company wouldn't hire him. Taking a boring job, Nolan daydreamed about electronic versions of popular games. He invented Pong, the first video game, and went on to found Atari Co.
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| Number | Title | Issue Date |
| 7922591 | Shutter clutch A clutch assembly for a UV module shutter, comprises a shutter shaft, a shutter drive arm, a clutch plate, at least one ball, a clutch thrust washer, and a spring assembly. The shutter shaft has a flange, the flange having a plurality of radially positioned flange d... | 04/12/2011 |
| 7905786 | Decoupling mechanism for power tools A decoupling mechanism for a power tool having a motor driving a drive shaft that drives a rotating component includes a shaft gear disposed around the drive shaft. The shaft gear has a first side and a second side. The second side has at least one shallow receiving... | 03/15/2011 |
| 7794329 | Torque overload clutch A radial detent torque overload clutch has a retaining ring inside the outer housing to retain the hub in the housing and a thrust bearing between the ring and pawls to bear thrust loads that tend to pull the hub out of the housing. The pawls exert driving torque in... | 09/14/2010 |
| 7520813 | Torque limiter having two mechanical inlets A torque limiter is provided with a first plate that rotates a second plate via a plurality of balls. The second plate shares the same axis as the first plate. Each ball is suitable for escaping from a respective housing in order to cease driving the second plate wh... | 04/21/2009 |
| 7441642 | Low inertia ball brake/clutch A clutch assembly is provided that includes a rotor, a stator, a clutch element disposed between the rotor and stator, and an axial force source. First and second contact surfaces are disposed on the rotor and spaced axially apart. The second surface has a smaller r... | 10/28/2008 |
| 7367891 | Techniques for controlling transfer of torque using detent members responsive to radial force A torque limiting device includes a base configured to reside in a fixed position relative to a drive unit, an input shaft assembly configured to receive a torque load from the drive unit, and an output shaft assembly which is capable of rotating about an axis. The ... | 05/06/2008 |
| 7318691 | Tool apparatus for milling machine The present invention provides an automated-torque controlled tool for attachment to a milling machine. The tool comprises an elongated hollow housing defined by a neck section, a middle section, and a bottom section. The neck section is adapted to engage a spindle ... | 01/15/2008 |
| 7290649 | Roller arrangement for an accumulating roller conveyor The invention relates to a roller arrangement (7) for a stowing roller conveyor, comprising a stationary roller axle (20) arranged in a support frame (4) of the stowing roller conveyor, with a driving roller (9) and a conveying roller ( | 11/06/2007 |
| 7272998 | Torque-limiting mechanism A torque-limiting mechanism is provided for use in a variety of torque-applying tools. The mechanism includes a handle defining a housing in which are disposed a slip gear and a fixed gear. The fixed gear is attached to the housing while the slip gear is attached to... | 09/25/2007 |
| 7243581 | Fixed torque limiting driver A clutch assembly for use with a torque limiting driver. The clutch assembly comprises two relatively rotatable clutch plates, a driving plate and a camming plate, that face one another, with a plurality of rolling members housed between the two members. The driving... | 07/17/2007 |
| 7228752 | Structure of a gearbox for all terrain vehicles A gearbox for all terrain vehicles which includes an engine having a crankshaft which drives a belt transmission mechanism of a transmission case thereby transmitting power to a final axle in the gearbox via a driven axle of the belt transmission mechanism, wherein ... | 06/12/2007 |
| 7216749 | Clutch for rotary power tool and rotary power tool incorporating such clutch An external surface of a spindle is formed with tapering grooves which become narrower in a direction towards the forward end of the spindle. A slider sleeve is provided with splines which also taper in a forward direction. In this way, the slider sleeve is prevente... | 05/15/2007 |
| 7137329 | Circular saw clutch assembly A circular saw clutch assembly includes an elongated rod that is coupled to a table saw assembly. A peripheral flange is integrally attached to the rod. The flange has a plurality of ball bearings mounted therein. A first washer abuts the flange and includes a plura... | 11/21/2006 |
| 7134509 | Portable power tool with rotating output shaft and overload protection A portable power tool is provided which includes a rotation motor (11), an output shaft (14), a gearing (13) and a drive spindle (12; 112) connecting the gearing (13) to the motor (11). A drive line arresting lock device ( | 11/14/2006 |
| 7124566 | Cutting device, particularly a lawn mower A cutting device, particularly a lawn mower, has at least one rotating knife mounted on a rotating, motor-driven knife carrier by a screwless, detachable connection. This connection is detachable by a relative rotation between the knife and the knife carrier. It is ... | 10/24/2006 |
| 7093946 | Powerfold exterior mirror assembly An exterior rearview mirror assembly for a vehicle includes a base portion mounted to the vehicle and a movable portion that is pivotable relative to the base portion via a motor or motorized actuator or powerfold unit or the like. The powerfold unit is operable to ... | 08/22/2006 |
| 7093947 | Mirror device for vehicle A foldable mirror device for a vehicle, in which a case is mounted on a support shaft erected from a base. The case includes a ring-shaped support portion for supporting the shaft, a motor connected to a transmission for swinging the mirror, and a clutch portion for... | 08/22/2006 |
| 7052239 | Oscillating fan clutch The invention pertains to a clutch for an oscillating fan wherein the clutch may be preadjusted for producing various degrees of oscillation, but will automatically adjust to a lesser degree of oscillation if the fan movement is restrained due to the fan's encounter... | 05/30/2006 |
| 7051820 | Rotary hammer An electrically powered rotary hammer comprising a rotary drive mechanism including a spindle drive gear rotatably mounted around the spindle for rotationally driving the spindle, or a part of the spindle, via an overload clutch. The overload clutch is arranged such... | 05/30/2006 |
| 7050226 | Play-free rotary mounting A play-free rotary mounting for a drive roll held on stop surfaces in the axial direction on a cylindrical body, wherein V-shaped annular grooves with an opening angle V are provided at least in one of the end faces of the drive roll and the stop surface located opp... | 05/23/2006 |
| 7040470 | Overload clutch for protecting a drive train An overload clutch for a torque transmission is disclosed which comprises a rotatable drive member coaxially coupled to a rotating driven member. One of the drive member and driven member, hereinafter referred to as the first member, comprises an annular band delimi... | 05/09/2006 |
| 7032481 | Constant force socket A constant force socket is constructed to include a socket body, which has an inner hole at one end and a set of teeth radially disposed inside the inner hole, a ratchet wheel, which is mounted inside the inner hole of the socket body and has a tool hole at one side... | 04/25/2006 |
| 7032476 | Torque adjustable tool A torque adjustable tool includes an active member and a passive member which is removably connected to the active member by two respective clutch portions. Driving power is connected to the active member and the passive member outputs a torque. A spring is mounted ... | 04/25/2006 |
| 7032759 | Pusher centrifuge The invention relates to a pusher centrifuge (1) for the separation of a mixture (2) into a solid cake (3) and into a liquid phase (4). The pusher centrifuge (1) in accordance with the invention includes an outer screen drum (6 | 04/25/2006 |
| 7028454 | Drum clutch slippage system An improved clutch slippage detection system, comprising a magnetic actuator and at least one reed switch sensor located at a slip clutch, which reed switch changes its state, at the instant the clutch begins to overrun. ... | 04/18/2006 |
| 7025151 | Device for limiting a torque to be transferred The invention relates to a device for limiting torque to be transferred, having first and second shafts having a longitudinal axis; at least first and second transfer elements arranged coaxial with the longitudinal axis of the first and second shafts, the first tran... | 04/11/2006 |
| 7025211 | Double pusher centrifuge The invention relates to a double pusher centrifuge including a screen drum (3) rotatable about an axis of rotation (2) for separating a mixture (4) into a solid material cake (5) and a liquid phase (6), a mixture distributor (7... | 04/11/2006 |
| 7017756 | Multi-stage pusher centrifuge The invention relates to a multi-stage pusher centrifuge (1) for the separation of a mixture (2) into a solid cake (3) and into a liquid phase (4). The multi-stage pusher centrifuge (1) includes an outer screen drum (6) rota... | 03/28/2006 |
| 7000492 | Axial adjusting device with spring support during the return motion An axial adjusting device includes two discs which are rotatable relative to one another and coaxially supported relative to one another, between which two discs balls are guided in pairs of ball grooves. The depth of the pairs of ball grooves is variable across the... | 02/21/2006 |
| 6942394 | Bearing race support without distortion A race for a bearing, which is mountable to a mount, has an annular bearing surface with a center axis defining an axis of rotation for the bearing and mutually perpendicular radial and transverse directions relative thereto. The race also has a radial wall that is ... | 09/13/2005 |
| 6932729 | Compressor having a power transmission mechanism which prevents balls from moving in an axial direction A compressor includes a power transmission mechanism. The power transmission mechanism includes a shaft, and a first rotation member fixed to the shaft. The first rotation member includes a plurality of accommodation portions. The power transmission mechanism also i... | 08/23/2005 |
| 6910836 | Impact driver for rotary tools Method and apparatus for improving the efficiency of the rotating cutter of a tool by converting at least part of the rotational torque applied to the cutter to repeated rotational impact forces. ... | 06/28/2005 |
| RE38606 | Clutch mechanism for reciprocating saws A reciprocating saw including a housing, a spindle mounted for reciprocating motion within the housing, a gear rotatably mounted within the housing, a wobble shaft rotatably mounted within the housing, a wobble plate rotatably mounted on the wobble shaft and connect... | 10/05/2004 |
| 6691849 | Clutch mechanism The invention provides a clutch mechanism (200) having a driven pulley (32) and a drive pulley (34) to which a load is applied, the clutch mechanism (200) having an engaged position in which torque applied in use to the driven pulley (32) is transmitted t... | 02/17/2004 |
| 6620066 | Drive unit for an alternator of a motor vehicle A drive unit for an alternator of a motor vehicle is provided with a driven pulley, which rotates around its own axis, and with a unit for connection of the pulley to a rotary drive shaft for the alternator; the drive unit is also provided with a revoluti... | 09/16/2003 |
| 6425837 | Power transmission A power transmission has a drive side rotatable member having a plurality of tapered radial concave portions with each having a pair of tapered surfaces. The plurality of tapered radial concave portions are disposed in a radial direction along a radial ax... | 07/30/2002 |
| 6312339 | Safety coupling The safety coupling comprises a housing (12) made up of a housing capsule (13) and a screwed-on housing cover (14). The torque is transmitted from the input shaft (10) via coupling disks (17, 18) to the output shaft (19). The first coupling disk (17) comp... | 11/06/2001 |
| 6206784 | Torque limiter A torque limiting device capable of transferring torque within a power train, and also capable of disengaging the torque transfer connection when the torque level exceeds a specific point. A specific ball bearing joint is formed where a radial boss mates ... | 03/27/2001 |
| 6132435 | Torque limiting device for surgical use The present invention is directed to a device for limiting the maximum torque that is applied to a screw during a surgical procedure. The driving connection between the input and output shafts of the device is established through a plurality of transmissi... | 10/17/2000 |
| 6119547 | Automatic balancing device An automatic balancing device for rotary units or systems. The automatic balancing device includes an annular housing, and an annular outer race track disposed in the annular housing. The outer race track is concentric with and attachable to the rotary sy... | 09/19/2000 |
