Did You Know...
...that one person who claimed to be the inventor of the television is Russian emigre Vladimir Zworykin? In 1929 David Sarnoff, founder of RCA, asked Zworykin what it would take to develop TV for commercial use. He said: a year and a half and $100,000. In reality, it took 20 years and $50 million! Before his death in 1982 at the age of 92, Zworykin said of his invention: "The technique is wonderful. It is beyond my expectations. But the programs! I would never let my children even come close to this thing."
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| Number | Title | Issue Date |
| 8181616 | Roller tappet for internal combustion piston engines comprising an anti-rotation device An internal combustion piston engine comprising at least one cylinder head, said cylinder head closing at least one cylinder, inlet and outlet channels of said cylinder head being regulated, each one, by at least one inlet and outlet valve that is loaded by a closin... | 05/22/2012 |
| 8171906 | Valve lifter guide and method of using same A valve lifter guide mountable in the engine block of an internal combustion engine, the valve lifter guide comprising at least one elongated socket defining a longitudinal axis, the at least one socket dimensioned to receive a valve lifter therein, and at least one... | 05/08/2012 |
| 8136494 | Lifter guide A guide for use in a vehicle engine having an engine block, cylinder head, and a cylinder head gasket. The guide comprises a valve lifter retention portion, a push rod retention portion in communication with the valve lifter retention portion via one or more apertur... | 03/20/2012 |
| 8127731 | Tappet clearance adjusting cover coupled with secondary air valve This invention is to provide a tappet clearance adjusting cover coupled with a secondary air valve. The tappet clearance adjusting cover is disposed on a cylinder head of an engine. The secondary air valve includes a recessed element and a cap which jointly form a r... | 03/06/2012 |
| 7900591 | Switchable component for a valve train of an internal combustion engine The invention proposes a switchable component (1) for a valve train of an internal combustion engine, said component (1) comprising a housing (2) in whose bore (3) an axially displaceable inner element (4) comprising coupling eleme... | 03/08/2011 |
| 7900592 | Switchable component for a valve train of an internal combustion engine A switchable component for a valve train of an mternal combustion engine, comprising a housing, a coupling means, an inner element being biased by at least one lost motion spring, a stop means, and an anti-rotation device configured as a thin-walled ring comprising ... | 03/08/2011 |
| 7856953 | Dual valve lifter assembly The dual valve lifter assembly has a dual valve lift with two hydraulic lash adjusters therein and a guide for orienting and preventing rotation of the dual valve lifter. The guide has four ledges and the dual valve lifter has four flats which mate with the four led... | 12/28/2010 |
| 7823555 | Low profile valve lifter assembly The low profile valve lifter assembly has flats inside the bore of the outer housing and walls are formed and extended down from the plate of the guide such that the walls align with the flats of the bore to prevent rotation of the lifter with the guide. A groove an... | 11/02/2010 |
| 7565890 | Rail used as a torsional stop for the valve train of an internal combustion engine, and roller tappet arrangement A rail used as a torsional stop for the valve train of an internal combustion engine is disclosed. The rail includes spaces (10) which are arranged in a row spaced apart at a distance from one another within the rail (8) and accommodate inserted valve ... | 07/28/2009 |
| 7431001 | Rail used as a torsional stop for the valve train of an internal combustion engine, and roller tappet arrangement A rail used as a torsional stop for the valve train of an internal combustion engine is disclosed. The rail includes spaces (10) which are arranged in a row spaced apart at a distance from one another within the rail (8) and accommodate inserted valve ... | 10/07/2008 |
| 7421994 | Hydraulic lash adjuster having a check valve cartridge sub-assembly An improved hydraulic lash adjuster including a cup-shaped adjuster body, and a plunger assembly disposed within the adjuster body. The plunger assembly includes a stepped axial bore extending from a body inner end to a central oil passage opening onto a hemispheric... | 09/09/2008 |
| 7409940 | Apparatus and method for maintaining controlled orientation of a roller lifter follower used in conjunction with a variable phased lifter In a variable phased valve lifter of an internal combustion engine, two or more roller lifter are allowed to move along constraining faces of a constraining mechanism in a first direction, and the constraining mechanism is allowed to move freely in a second directio... | 08/12/2008 |
| 7373907 | Valve lifter guide A valve lifter guide (100, 900, 1100) includes at least one conduit (101, 901, 1101). The conduit (101, 901, 1101) has a first inwardly-curved surface (103) opposed to a second inwardly-curved surface (105) such that the conduit is... | 05/20/2008 |
| 7350492 | Guide gib for the valve operating mechanism of an internal combustion engine In a guide gib for the valve operating mechanism of an internal combustion engine, having holding spaces (12, 13), which are arranged in the gib (8) at intervals one behind the other, for valve tappets, wherein to prevent a valve tappet from rotating a... | 04/01/2008 |
| 7311074 | Guide rail for valve tappet of an internal combustion engine A guide rail (1, 22) for valve tappets (2) of an internal combustion engine is provided. The guide rail (1, 22) has receptacle spaces (4), which are each used for receiving one of the valve tappets (2) and in which there are flatte... | 12/25/2007 |
| 7284520 | Valve lifter body and method of manufacture The present invention relates to a lash adjuster body, comprising A lash adjuster body, comprising an outer surface, enclosing a cavity, wherein the cavity includes an inner surface configured to accommodate an insert and a spring; and the cavity is fabricated throu... | 10/23/2007 |
| 7275507 | Rail used as a torsional stop for the valve train of an internal combustion engine, and roller tappet arrangement A rail used as a torsional stop for the valve train of an internal combustion engine is disclosed. The rail includes spaces (10) which are arranged in a row spaced apart at a distance from one another within the rail (8) and accommodate inserted valve ... | 10/02/2007 |
| 7273026 | Roller follower body The present invention relates to a roller follower, comprising an outer surface, enclosing a first cavity, a second cavity, and a transition opening, wherein the first cavity includes a first inner surface configured to house a cylindrical insert the second cavity i... | 09/25/2007 |
| 7263956 | Valve lifter assembly for selectively deactivating a cylinder A valve lifter assembly for deactivating a cylinder in an internal combustion engine. The valve lifter assembly is provided with a plunger movably disposed within a bore of a main body member to controllably isolate the cam lift from the rocker arm and valve of the ... | 09/04/2007 |
| 7210439 | Switching element for a valve train of an internal combustion engine The invention proposes a switching element (1) for a valve train of an internal combustion engine, particularly for valve deactivation, with a simple-to-implement measure for adjusting the coupling lash of its coupling means (8) in a receptacle (6 | 05/01/2007 |
| 7210437 | Periodically actuable tappet for a valve train or a pump drive The invention proposes a periodically actuable tappet (1) for a valve train, said tappet (1) comprising a hollow cylindrical skirt (2) that can be arranged through an outer peripheral surface (3) in a guide bore (4) of a surroundin... | 05/01/2007 |
| 7207302 | Valve lifter body The present invention relates to a valve lifter body, comprising an outer surface, enclosing a first cavity and a second cavity, wherein the first cavity includes a first inner surface configured to house a cylindrical insert, the second cavity includes a second inn... | 04/24/2007 |
| 7207303 | Switching element A switch element (1) is proposed for valve shut-off, fabricated as cam follower for a plunger rod valve drive of an internal combustion engine, having an outer part (2) and an inner element (4) axially movable in its bore (3) and with rot... | 04/24/2007 |
| 7159552 | Cup tappet for an internal combustion engine The invention relates to a cup tappet for an internal combustion engine, having a skirt which has a radial recess, into which an anti-rotation element (6) is inserted. The anti-rotation element protrudes from the skirt in the radial direction, in order to be ... | 01/09/2007 |
| 7159553 | Valve train for an internal combustion engine The invention provides a valve train for an internal combustion engine, comprising an elongate anti-rotation bridge (16) acting as a retention device and a mounting aid and comprising receptions (18) for valve lash adjusters arranged spaced behind one ... | 01/09/2007 |
| 7156079 | Diesel engine A diesel engine 1 of the present invention comprises: a camshaft 13 with a cam 21; a fuel injection pump 12 having a plunger 84; a tappet for driving the plunger 84; and a slide portion 2b. The tappet includes ... | 01/02/2007 |
| 7146948 | Valve lifting arrangement A valve actuating assembly for opening and closing a valve includes a cam mounted on a camshaft and enclosed by a pair of rotary cam guides each of which includes a roller channel having an outer race for receiving opposed ends of a roller that extends transversely ... | 12/12/2006 |
| 7146952 | Valve tappet system, especially anti-rotation bucket tappet having curved cam follower surface A valve tappet system includes a base body, a lateral section, which forms a guide surface for guiding the base body along an oscillation axis. The anti-rotation element to suppress a rotational or swiveling movement about the oscillation axis. The anti-rotation ele... | 12/12/2006 |
| 7143731 | Cup tappet of a valve train of an internal combustion engine The invention proposes a cup tappet (1) of a valve train of an internal combustion engine, said cup tappet (1) comprising a hollow cylindrical skirt (3) closed at one end by a bottom (2), said bottom (2) comprising an outer end sur... | 12/05/2006 |
| 7137373 | Valve lifter guide A valve lifter guide (100) includes a base (111) and at least one conduit (101) extending from the base (111). The conduit (101) has a first inwardly curved surface (103) opposed to a second inwardly curved surface (105 | 11/21/2006 |
| 7128034 | Valve lifter body The present invention relates to a valve lifter body, comprising an outer surface, enclosing a first cavity and a second cavity, wherein the first cavity includes a first inner surface configured to house a cylindrical insert, the second cavity includes a second inn... | 10/31/2006 |
| 7121244 | Anti-rotation guide for a roller follower valve lifter An anti-rotation guide for preventing rotation of a roller follower valve lifter in an internal combustion engine. The guide has an outer surface for engaging an engine bore and an inner surface for slidably receiving the lifter. One end of the guide includes an ant... | 10/17/2006 |
| 7090222 | Shaft sealing assembly for vacuum processing apparatus Herein disclosed is a shaft sealing apparatus which comprises a vacuum casing formed with a vacuum chamber, a driving shaft having an outer cylindrical surface and movably extending in the vacuum chamber of the vacuum casing, and a sealing ring in the form of an ann... | 08/15/2006 |
| 7086360 | Assembly and torsional stop device for roller tappets of a drive in an internal combustion engine The invention concerns a mounting and anti-rotation device (mounting aid) (1) for roller tappets of a valve train of an internal combustion engine in which gas exchange valves are activated by roller tappets. The roller tappets comprising a substantially cyli... | 08/08/2006 |
| 7032553 | Valve operating assembly The present invention relates to an assembly, comprising an adjusting body, a valve lifter body and means for cold forming at least a portion of at least one of the adjusting body and the valve lifter body. The adjusting body includes an outer surface enclosing a ca... | 04/25/2006 |
| 7007651 | Anti-rotation guide for a deactivation hydraulic valve lifter An anti-rotation guide for a deactivation hydraulic valve lifter for an internal combustion engine. The guide includes a through bore accommodating of a hydraulic valve lifter and is sized such that the outer end of the lifter may be inserted into the through bore o... | 03/07/2006 |
| 6997154 | Switch element A switch element (1) is proposed for valve shut-off, fabricated as cam follower for a plunger rod valve drive of an internal combustion engine, having an outer part (2) and an inner element (4) axially movable in its bore (3) and with rot... | 02/14/2006 |
| 6994064 | Guide rail for the valve train of an internal combustion engine In a guide rail for the valve train of an internal combustion engine, having receiving spaces disposed in an elongate body in spaced-apart relationship behind one another and accommodating valve lifters, flats are formed upon the outer surface area of each valve lif... | 02/07/2006 |
| 6978752 | Hybrid metal-composite valve lifter guide A hybrid valve lifter guide formed of metal and nonmetallic material for maintaining the angular position of a reciprocable valve lifter having a circumferential surface with at least one alignment flat. The guide includes a metal guide body having a longitudinal gu... | 12/27/2005 |
| 6976463 | Anti-rotation deactivation valve lifter A valve deactivation lifter including means for restricting relative rotation between the pin housing and the lifter body. When used in a V-style or slant engine, a prior art deactivation lifter can be subject to oil drainage during engine shutdown if the oil supply... | 12/20/2005 |
