...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 |
| 7958795 | Pedal system To enable a pedal system equipped with an actuator to reduce power consumption and put a pedal at an appropriate position when there is no need to operate the pedal. A system state control unit changes pedal position to an end position or original position before de... | 06/14/2011 |
| 7331272 | Multiple-stroke hydrostatic axial piston machine A multiple-stroke hydrostatic axial piston machine has a plurality of piston-shaped displacement bodies (13) that can each move longitudinally in a displacement chamber (12) and are each supported by a roller body on a track (9) that is provided... | 02/19/2008 |
| 7278777 | Hand held concrete vibrator A concrete vibrator powered by a portable drill includes a housing having a contacting pad at one end and an axial bore. A camshaft is received within the bore. A transverse retainer is secured on the camshaft for retaining the camshaft within the bore. The camshaft... | 10/09/2007 |
| 7252017 | Axial adjusting device with multiple ball means An axial adjusting device comprising two discs which are rotatable relative to one another, which are supported coaxially relative to one another and between which there are guided balls in pairs of ball grooves whose depth varies across the circumference. Of the di... | 08/07/2007 |
| 7156406 | Anti-roll bar for the chassis of a motor vehicle The invention relates to a roll stabilizer for the chassis of a motor vehicle, comprising an actuator (3), which is mounted between anti-roll bar halves (1, 2) and which rotates these about a rotation axis in opposite directions as necessary. The curve... | 01/02/2007 |
| 7083395 | Pump system for pumping liquefied gases Under one aspect of the present invention, a liquefied gas pump assembly is coupleable to a source of liquefied gas. A cooling assembly is positioned generally adjacent to a pump module. The cooling assembly has a converging pump-head-receiving aperture, a fluid inl... | 08/01/2006 |
| 7066042 | Advancing/retracting mechanism An advancing/retracting mechanism having a pair of cams is disclosed. The advancing/retracting mechanism includes a first cam, a second cam, and a barrel. The first cam includes an angled surface and a shoe, and the second cam includes an angled surface and a slider... | 06/27/2006 |
| 7033525 | High conductivity polyaniline compositions and uses therefor The present invention describes compositions formed from polyanaline and carbon nanotubes, which exhibit enhanced conductivity and which provide uses in electronic circuit applications. ... | 04/25/2006 |
| 7032687 | Percussion device Percussion device, includes a housing and two movable bodies, an impact body for an impact pin protruding from the housing, and a balancing body for counterbalancing impact motions of the impact body. The housing includes springs, which constantly strive to bring th... | 04/25/2006 |
| 7033149 | Medium pump adapted for ease of disassembly and assembly A medium pump for a motor includes a pump case with a pump cylinder and a pump piston positioned displacaebly in the pump cylinder in the direction of a pump axle. The pump piston rotates about the pump axle by running off an oblique control surface and realizes axi... | 04/25/2006 |
| 7028579 | Over-mold lever An over-mold lever in particular for use in a clamping mechanism for a vehicle steering column, is preferably made primarily of plastics material and includes a main portion (1) a head (5) and a hand grip (4). The head (5) is molded over ... | 04/18/2006 |
| 7004121 | Arrangement at a piston engine and method of controlling the pistons A piston engine in the form of a piston pump or a piston engine (motor) comprises two or more piston cylinders (14b, 14c), preferably positioned with the same angular distances of 180 degrees for two cylinders, 120 degrees for three cylin... | 02/28/2006 |
| 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 |
| 6976909 | Extended sanding support An extended sanding support tool, consistent with certain embodiments of the present invention has an elongated metal housing having first and second ends. A first bearing is coupled to the housing adjacent the first end and a second bearing is within the housing cl... | 12/20/2005 |
| 6911232 | Module, nozzle and method for dispensing controlled patterns of liquid material A liquid dispensing module and nozzle or die tip for discharging at least one liquid filament. The nozzle includes a strand guide for guiding a substrate past the nozzle and a frustoconical protrusion disposed on a surface of the nozzle adjacent the notch. A liquid ... | 06/28/2005 |
| 6860167 | Transmission for a stabilizer arrangement for a motor vehicle chassis A transmission with an essentially unloaded neutral position includes two curved-path carriers each having a curved path and a coupling element configured to engage with the curved paths of the curved-path carriers. The coupling element includes an engaging element ... | 03/01/2005 |
| 6851331 | Tilt steering apparatus A tilt steering apparatus comprises a lock lever rotatable around the axis of a supporting shaft. When a lock lever is rotated around the axis of the supporting shaft, a cam surface is rotated relative to a cam follower. As a result, the cam surface presses the cam ... | 02/08/2005 |
| 6722787 | Thrust ring and method for producing a thrust ring, bearing system for bolts of universal joints and cardan joint arrangement A thrust ring, in particular an axial bearing thrust ring, for forming a running surface for rolling elements, for use in bearing systems for universal joints of cardan shafts. The ring has a first planar end side and a second end side, having two surface regions on... | 04/20/2004 |
| 6718838 | Rotary drive mechanism and appliance timer/sequence switch utilizing same A rotary drive mechanism for use with a timer/sequence switch in an appliance is presented. The mechanism converts linear motion from a cam tracker following a programmed cam track to rotary motion to drive a vent damper in an appliance. The rotary motion output is ... | 04/13/2004 |
| 6647593 | Hinge unit of mounting strap A hinge assembly has a tubular member having a longitudinal axis, a peripheral surface, and a slot formed in the peripheral surface. A button member extends into the tubular member to undergo sliding movement in an axial direction along the longitudinal a... | 11/18/2003 |
| 6622379 | Lift cam mechanism for electronic parts mounting apparatus An electronic parts-mounting apparatus including a rotating vertical shaft and at least one mounting head arranged around the vertical shaft has a lift cam mechanism that operates to lift and lower an associated one of the at least one mounting head as ea... | 09/23/2003 |
| 6386815 | Pick-up apparatus for semiconductor chips A pick-up apparatus for picking up semiconductor chips comprising an integrated or a separately rotatable composite cam formed by a plurality of cylindrical cams, and a plurality of cylindrical pin holders having a plurality of push-up pins, and at least ... | 05/14/2002 |
| 5667895 | Shock attenuation device A device contains a super absorbent hydrophilic polymer in combination with a compatible liquid to form a thick, viscous gel-like colloidal fluid to provide high durability, low cost, and ready manufacture in footwear, medical applications, including surg... | 09/16/1997 |
| 5644949 | Compressor cam and method for manufacturing the same A cam having a front surface and a rear surface to reciprocate a double-headed piston of a compressor twice for every rotation of a drive shaft. A positioner is provided on the front and rear surface of the cam to position the cam on a fixture used for gr... | 07/08/1997 |
| 5639223 | Compressor with cylindrical cam surface A double-headed piston type compressor has a disk plate. The disk plate is rotatably supported on a drive shaft for driving each piston along a reciprocating path. The plate is curved in a single direction to form a solid cam on its surface. The cam trans... | 06/17/1997 |
| 5634775 | Wave cam type compressor A wave cam type compressor is provided. The compressor has a wave cam body mounted on a rotary shaft for integral rotation and pistons operably contacting said cam body by way of shoes. The shoes are moveable relative to the cam body according to the rota... | 06/03/1997 |
| 5603245 | Method for a translatory motion of components A structural component (21) is moved axially back and forth with the aid of a closed cam (40A) arranged on a rotating cam carrier (33) for mechanically entraining cam follower rollers carried by the structural component. At least one roller (26) of a pair... | 02/18/1997 |
| 5601416 | Wave cam type compressor A wave cam type compressor is described. Cylindroid blocks are provided to support a drive shaft and to contain a plurality of cylinder bores centered around the drive shaft. A wave cam attached to the drive shaft has cam surfaces on the front side and th... | 02/11/1997 |
| 5542340 | Wave cam type compressor A wave cam type compressor includes cylinder blocks. A drive shaft is rotatably supported in the center cylinder blocks. A plurality of cylinder bores are defined about the drive shaft in the cylinder blocks. A wave cam, mounted on the drive shaft, compri... | 08/06/1996 |
| 5511912 | Hand tool attachment An attachment for a hand tool for converting rotary motion to reciprocating motion to an air bathed tool holding chuck.... | 04/30/1996 |
| 5458012 | Drive for a crystal ball for moving a figure upwardly and downwardly The present invention provides a crystal ball which move upwardly and downwardly, wherein the convex surface of the planetary gears which is used to drive the revolving disk is a bevel to form a bulgy state, and a mantle surrounding said bulgy convex surf... | 10/17/1995 |
| 5452647 | Wave plate type compressor Disclosed is a compressor having a plate rotatable about an axis of a rotary shaft and a piston connected to the plate, wherein the plate causes the piston to reciprocate between a top dead center and a bottom dead center of its stroke in accordance with ... | 09/26/1995 |
| 5116147 | Anti-blockage bearing An anti-blockage bearing for use in rotary core drilling of rock or other hard earth. Situated between the upper end of a freely suspended core barrel assembly and the core barrel coupling, the invention consists of spherical bearings retained within an u... | 05/26/1992 |
| 5099805 | Variable valve actuating device and method A variable valve actuating device and method are disclosed, the device including a rotatable cam having a selectively configured cam face engagable with a worm drive at an outer engaging surface of the cam, the worm drive being configured for both rotary ... | 03/31/1992 |
| 5040426 | Drive mechanism for moving a member along a defined path A drive mechanism for converting a rotational drive motion into a linear back and forth motion comprising driven member (21) for performing said back and forth motion, and a rotational drive member (33) for applying a driving force to the driven member. T... | 08/20/1991 |
| 4925154 | Gate valve with supplemental actuator An improved gate valve having a body with a chamber and an inlet and an outlet extending therethrough into said chamber, a gate mounted for reciprocation in said chamber between open and closed positions, a pressure responsive actuator having a housing, a... | 05/15/1990 |
| 4871143 | Gate valve with supplemental actuator An improved gate valve having a body with a chamber and an inlet and an outlet extending therethrough into said chamber, a gate mounted for reciprocation in said chamber between open and closed positions, a pressure responsive actuator having a housing, a... | 10/03/1989 |
| 4811834 | Mechanical transfer feeder A transfer feeder for operating to successively transfer articles from a certain position to a next position by clamping, lifting, advancing, lowering and unclamping repeatedly articles with a pair of parallel feed bars. The transfer feeder is provided wi... | 03/14/1989 |
| 4756239 | Anti-rolling structure for double headed piston of disc cam type reciprocative compressor An anti-rolling structure for a double headed piston of a disc cam type reciprocative compressor, comprising a cylinder block (1) through which a plurality of pairs of front and rear cylinder bores (4) are provided in parallel to a drive shaft (3) rotatab... | 07/12/1988 |
| 4717119 | Device for bleeding or for draining a heat exchanger, such as a radiator for a motor vehicle The device comprises a stopper having an operating head (10), an intermediate portion (12) bearing a sealing ring, and a tail (14) formed with radial ribs which co-operate with slopes in the orifice in which the stopper is to be mounted, a portion (30) of... | 01/05/1988 |