...that "patent leather" got its name because the process of applying the polished black finish to leather was once patented?
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| Number | Title | Issue Date |
| 7332074 | Water circulation systems for ponds, lakes, and other bodies of water Circulation systems for ponds, lakes, or other bodies of water using a flotation platform, dish, and impeller. One embodiment has a connecting arrangement between the drive motor and the impeller that permits the two to be easily and quickly coupled and uncoupled. T... | 02/19/2008 |
| 7329190 | Torque transmission apparatus An apparatus for transmitting torque from a driving unit to a driven unit, comprising the first unit, the second unit and a plurality of torque transmission units. The first unit serves as the driving unit, which is rotatable around a central axis thereof. The secon... | 02/12/2008 |
| 7326215 | Curved surgical tool driver A surgical tool driver has a driven end connectable to a rotary drive source and a driving end connectable to a surgical tool. A shaft assembly there between includes a hollow outer shaft and a flexible drive shaft for transmitting rotary power from the driven end t... | 02/05/2008 |
| 7304241 | Swivel connector, cable, and assembly An assembly having a connector capable of rotating up to about +/−170 degrees; and a plurality of conductors, sized in the range of gauge 22 to gauge 26. ... | 12/04/2007 |
| 7300431 | Remote controlled device for tool rotating A remote-controlled device for rotating tools, preferably medical tools, comprising a hollow body (1) which is embodied in the form of pivotally connected proximal and distal parts (2, 6) provided with a pair of adjacent end surfaces (5, 5′) w... | 11/27/2007 |
| 7278342 | Tool connecting device A tool connecting device includes a tool mount having a non-circular socket opening for receiving a non-circular spatial engaging member of a tool shank to allow the tool shank to be selectively tilted relative to the tool mount to different angular position. An anc... | 10/09/2007 |
| 7228767 | Tool connecting device A tool connecting device includes a shaft having a non-circular socket opening for receiving a non-circular rotatable member of a tool member to allow the tool member to be selectively tilted relative to the shaft to different angular position. A protrusion is exten... | 06/12/2007 |
| 7191711 | Shafting especially a cardan shaft and homokinetic bogie drive system for rail vehicles A shafting, particularly a cardan shaft for rail vehicles, has two cardan joints (4,5), each of which comprises two link forks (7–10) coupled to one another by a central part (6). The central part (6) comprises at least two partial elem... | 03/20/2007 |
| 7153214 | Universal joint A universal joint to transmit force from a tool to a workpiece. A driver attachable to the tool has a spherical cavity. A plurality of inwardly facing protrusions is formed in the cavity. Each protrusion has a pair of conical sidewalls separated by an angled ramp. A... | 12/26/2006 |
| 7144326 | Constant velocity coupling and control system therefor A constant velocity coupling which rotabably connects an input shaft to an output shaft by means of a control mechanism or control system which, in particular forms, includes a gimbal arrangement comprised of an inner yoke rotatably connected to an outer yoke. The c... | 12/05/2006 |
| 7104339 | Automatically engaging coupler with flexible shaft for a seeding machine An agricultural seeding machine, includes a seed hopper, a first frame member carrying a drive shaft, a second frame member carrying a driven shaft, a coupler, and a flexible shaft. The first frame member and the second frame member are foldable relative to each oth... | 09/12/2006 |
| 7028699 | Tilting umbrella with adjustable cover A tilting umbrella with an adjustable cover includes an adjustable cover and a shaft. An upper joint is provided centrally of the cover having a positioning ball to be received in an upper connector formed on top of the shaft. Hence, the cover is adjustable to have ... | 04/18/2006 |
| 7018298 | Pivotal driving tool assembly A pivotal driving tool includes a socket having a non-circular cavity formed by three or more planer side walls, and having an inner retaining ring. A mandrel includes a driving shank having a non-circular cross section for engaging into the socket, to allow the soc... | 03/28/2006 |
| 6962489 | Moineau pumping device having a ball coupling A pumping device is provided which comprises a Moineau pump with a helical rotor inside a helical cavity of a stator, driver means, and a drive connecting rod coupled by a respective coupling to a driving shaft of the driver and to one end of the rotor. Each couplin... | 11/08/2005 |
| 6955623 | Single planet steering position planetary differential A single planet planetary differential including a shaft mechanism, a planet gear, disposed so as to be meshingly communicated with the shaft mechanism, a carrier device, the carrier device defining a carrier cavity for rotatingly containing the planet gear, a worm ... | 10/18/2005 |
| 6932369 | Wheelchair and structural elements therefore An assembly comprises an elongate member and a receiving member. The elongate member has an external cross-sectional shape which is substantially square and has corners replaced by circumferentially spaced circular portions of a circumscribing circle with flat porti... | 08/23/2005 |
| 6764051 | Moving yoke A moving yoke comprises a first yoke member, a second yoke member, swivellable relative to the first yoke member about a first axis, and a third yoke member having an arcuate portion. The second yoke member has an arcuate support portion, and the arcuate portion of ... | 07/20/2004 |
| 6722038 | Coupling for internal cutting member of rotary shaving apparatus Shaving apparatus having at least one pivotable cutting unit (3) comprising an external cutting member (4) and an internal cutting member (6) which is drivable relative to said external cutting member, a drive mechanism (8) for driving sa... | 04/20/2004 |
| 6663493 | Coupling device A coupling device includes a transmission member and a work shaft. The transmission member includes a cylindrical rod to be coupled to a rotary drive unit, and a curved coupling flange projecting axially relative to one end of the cylindrical rod and form... | 12/16/2003 |
| 6572480 | Polygon universal joint A universal joint adapted to interconnect a pair of rotating shafts at an angle relative to one another including a first member and a second member wherein the first member has a first longitudinal axis and includes an elongated semi-spherical head havin... | 06/03/2003 |
| 6517439 | U-joint construction A U-joint construction includes a drive coupling member connected to a drive shaft, and intermediate coupling member, and a driven coupling member connected to a driven shaft. The drive coupling member and the driven coupling member include bearings which... | 02/11/2003 |
| 6443106 | Coupling element connecting two parallel, spaced shafts for varying their position relative to one another The invention relates to a coupling element for connecting two parallel shafts which have an eccentricity, whereby the height of one shaft can be adjusted in relation to a fixed reference plane by means of movement along a rotational path parallel to the ... | 09/03/2002 |
| 6398656 | Universal joint A universal joint comprises a first rotation guide member, a second rotation guide member guided by the first rotation guide means to be rotatable, and a third rotation guide member guided by the second rotation guide member to be rotatable. The first, se... | 06/04/2002 |
| 6375577 | Universal style coupling A coupler for connecting a drive shaft to a driven member and accommodating a substantial misalignment between the drive shaft and the driven member, while minimizing audible noise and vibration. The coupling includes a hollow core nest element having a p... | 04/23/2002 |
| 6368222 | Universal joint and parallel mechanism machine incorporating the universal joint A universal joint having two or three degrees of freedom in rotation is disclosed which exhibits a small size, great rigidity and satisfactory accuracy. An end of a first node is connected to a base through a rolling bearing. A plurality of circular-arc g... | 04/09/2002 |
| 6344020 | Bearing and umbilicus gimbal with bearing retainer in blood processing system A bearing supports a rotating element. The bearing comprises an inner annular body and an outer annular body about the inner annular body. A bearing surface, which is located between the inner annular body and the outer annular body, supports the outer an... | 02/05/2002 |
| 6290606 | Polygonal ball drive system for earth auger An enclosed articulating joint for coupling a drive motor to an auger type earth anchor. The joint comprises a socket member attached to the drive motor and a ball member attached to the anchor. The socket member has a polygonal internal cross section whi... | 09/18/2001 |
| 6252394 | Rotary movement sensor equipped with means of assembly with a drive shaft designed to minimize the effects of a misalignment in the connection A sensor for detecting the angular position of a rotary drive shaft is disclosed which includes a stator, a rotor connected to the stator by a ball joint and including a moving target, and a drive shaft connected to the rotor. The moving target passes thr... | 06/26/2001 |
| 6195973 | Hay making machine with improved shaft coupling A hay making machine including at least two working elements in the form of rotary rakes which are carried by intermediate frames. The intermediate frames are arranged on a support frame and supported on the ground by at least one land wheel. The intermed... | 03/06/2001 |
| 6162125 | Motor shaft to gear pump coupling device for fluid borne noise reduction An electro-hydraulic gear pump power pack [10], including a gear pump [12] and a motor [16], are secured together to form a single assembly. The gear pump [12] has a gear drive [14] that is in rotational communication with a drive shaft [18] extending fro... | 12/19/2000 |
| 6152826 | Impact universal joint An impact universal joint has a socket which receives a swivel head. A flat leaf spring with dependent members is connected to the upper face of the socket. The swivel head is substantially a sphere with spaced-apart lugs formed around a circumference of ... | 11/28/2000 |
| 6145408 | Mechanism for feature improvement for bicycles and other crankdriven mechanism In the case of bicycles, the purpose of the new construction is to make maximum use of the momentum produced by pedalling under varying ground conditions, load, and acceleration--thus making bicycling easier. The construction has two variable positions wh... | 11/14/2000 |
| 6106164 | Transmission device of driving-force for camera A transmission device of driving-force for transmitting driving-force of various types of driving sources inside a camera. In order to provide the transmission device of driving-force that can contribute to downsizing of a camera without decreasing a tran... | 08/22/2000 |
| 6026703 | Dexterous split equator joint This invention comprises a general redundant spherical linkage capable of producing a hemisphere or greater of singularity-free, relative motion of two arms which intersect at a fixed point. All points of all links of the invention move on spheres that ar... | 02/22/2000 |
| 5989177 | Umbilicus gimbal with bearing retainer A blood processing centrifuge includes a disposable fluid processing assembly having a fluid processing chamber. Fluid is communicated to and from the fluid processing chamber through a flexible umbilicus. The fluid processing chamber spins while the cent... | 11/23/1999 |
| 5908183 | Precision power coupling housing The present device features a precision power coupling housing formed from a U-shaped, extruded aluminum channel. An input power source such as a motor is mounted to a first leg portion of the U-shaped channel while a load device to mounted to the second ... | 06/01/1999 |
| 5900685 | Anti-noise system for a moving object A noise-reduced stage lighting system has a motor having an output shaft driving a moving part of a stage lighting device, e.g. pan and tilt functions. An anti noise coupling is used to attenuate the noise produced by the assembly. An interface surface is... | 05/04/1999 |
| 5851151 | Pinless impact universal joint The universal joint is provided for use with power drive tools. A driving member (12) is provided having a bore (16) at one end for receiving a drive member and a cavity (18) at the other end. A driven member (14) is provided having a quadrified ball (20)... | 12/22/1998 |
| 5846135 | Universal joint comprising a pair of crown gear elements confined within a slotted casing A universal joint comprises a driving gear and a driven gear each provided with a respective crown gear cluster, and a slotted casing confining the driving gear and the driven gear in meshing engagement. The casing comprises a slot through which the drive... | 12/08/1998 |
| 5755622 | Centrifugally operated axial and torsional vibration reducer for a diaphragm coupling A vibration reducer for a diaphragm coupling is capable of suppressing axial vibrations as well as torsional vibrations. A diaphragm pack 3 is mounted between a diaphragm mount flange 2 provided on an intermediate shaft 1 serving as a drive shaft and a sh... | 05/26/1998 |