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| Number | Title | Issue Date |
| 7360290 | Method of manufacturing rocker arm The present invention provides a method of manufacturing a rocker arm, having a process of rough processing, in which a metallic stock is subjected to compression-forming by cold forging to form a connecting portion, side wall lower portions of two side wall portion... | 04/22/2008 |
| 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 |
| 7246563 | Pivot assembly for planter closing wheel frame A pivot assembly is provided for attaching a closing wheel frame to a planter. The closing wheel frame has a pair of closing wheels attached at a rear end and a pair of mounting openings formed at a front end. The pivot assembly includes ball bearings having outer r... | 07/24/2007 |
| 7152320 | Rocker arm and method of manufacturing the rocker arm In relation to a rocker arm obtained by applying cold forging to a blank made from a metal wire rod, cold forging is applied to a blank obtained by cutting a metal wire rod to a predetermined length to make a second intermediate blank 34b having a pair... | 12/26/2006 |
| 7146950 | Connecting element for inseparable retention of a lever-type cam follower The invention proposes a connecting element (9) for retaining a lever-type cam follower (1), that serves to activate a gas exchange valve (5) of an internal combustion engine, inseparably on a support element (2) comprising a spherical en... | 12/12/2006 |
| 7043836 | Manufacturing method of rocker arm When forces given in the processes of machining in the cross direction and machining for forming a groove are adjusted and the machining is repeatedly conducted by a plurality of times, the valve engaging portion (10) is machined, and the metal flow (30 | 05/16/2006 |
| 7028653 | Roller rocker mounting mechanism A roller rocker mounting mechanism for an internal combustion engine valve actuating mechanism includes a first rocker stand having a first locating boss and a second rocker stand having a second locating boss. An indexing link has a first portion separably attachab... | 04/18/2006 |
| 6948466 | Finger lever of a valve train of an internal combustion engine The invention proposes a finger lever (1) of a valve train of an internal combustion engine, said finger lever (1) being switchable to different valve lifts for at least one gas exchange valve and comprising an outer lever (2) having two arms ( | 09/27/2005 |
| 6918343 | Pivot assembly for planter closing wheel frame A pivot assembly is provided for attaching a closing wheel frame to a planter. The closing wheel frame has a pair of closing wheels attached at a rear end and a pair of mounting openings formed at a front end. The pivot assembly includes ball bearings having outer r... | 07/19/2005 |
| 6901894 | Finger lever of a valve train of an internal combustion engine A finger lever (1) of a valve train of an internal combustion engine, said finger lever (1) being switchable to different valve lifts for at least one gas exchange valve and comprising an outer lever (2) having two arms (3a, 3 | 06/07/2005 |
| 6851403 | Valve drive having a rocker arm A valve drive having a rocker arm mounted on a cylinder head is provided. One end of the rocker arm is actuated by a push rod to actuate a valve stem of a poppet valve that engages the other end of the rocker arm, which is pivotably held between its ends on a suppor... | 02/08/2005 |
| 6694936 | Rocker arm arrangement for internal combustion engine A rocker arm (1) for a valve train of an internal combustion engine which is pivoted on a support pin (10) about its axis (9), whereby a push rod (7) contacts one end section (5), and the valve shaft (8) of a gas exchange valve contacts the other end sect... | 02/24/2004 |
| 6644254 | Valve train for internal combustion engine A valve train for an internal combustion engine includes a rocker shaft (9) provided with an oil passage, first and second rocker arms (7, 8) having support parts (7a, 8a) provided with bores (7b, 8b) to receive the rocker shaft (9) therein so as to be su... | 11/11/2003 |
| 6550438 | Valve drive having a rocker arm A valve drive mechanism is provided that has a rocker arm that by means of a swivel joint is movable about a pivot axis that extends transverse to the rocker arm. A control unit serves to actuate one end of the rocker arm, the other end of which actuates ... | 04/22/2003 |
| 6543402 | Load biasing retainer clip and valve actuator subassembly A retainer clip includes a U-shaped body, first and second legs, and a resilient segment interconnecting first ends of the legs. The legs are adapted to resiliently engage opposite sides of a wall of a rockable actuator member. A second end of the first l... | 04/08/2003 |
| 6523514 | Rocker arm and method of manufacturing rocker arm body It is an object of the present invention to provide a rocker arm having such a shape as to avoid generation of defects in a producing process and to avoid increase in weight and design change of a finished shape. A valve fitting portion 11 of a body 5 is ... | 02/25/2003 |
| 6508215 | Sheet metal rocker arm, manufacturing method thereof, cam follower with said rocker arm, and assembling method thereof A sheet metal rocker arm manufactured by the steps of punching one metal plate to form a blank having a predetermined contour and through holes, and subjecting this blank to a bending work based on a press work to form a pair of side walls parallel to eac... | 01/21/2003 |
| 6502536 | Method and apparatus for two-step cam profile switching A two-step roller finger follower includes an elongate body having a first side member and a second side member. A first end and a second end interconnect the first and second side members. The first and second side member define first and second pin orif... | 01/07/2003 |
| 6484682 | Rocker arm assembly There is provided a rocker arm assembly for mounting on a carrier in an internal combustion engine that can be pre-assembled and installed on the rocker carrier decreasing manufacturing time and cost. The rocker arm assembly comprises a rocker arm, a fulc... | 11/26/2002 |
| 6481400 | Valve deactivation assembly with partial journal bearings A valve deactivation assembly includes an elongate camshaft having at least one lift lobe. The lift lobe has a lift portion and a base circle portion, and is affixed to or integral with the camshaft. A first null lobe is disposed on a first side of the li... | 11/19/2002 |
| 6478001 | Cam follower with clamp A cam follower having a clamp disposed on at least one end thereof. The follower includes two opposing sidewalls interconnected by a lower pallet. A roller is rotatably mounted to and disposed between the sidewalls via needled or journal bearings or other... | 11/12/2002 |
| 6470842 | Lever-type cam follower A lever-type cam follower (1) of a thin-walled material like sheet metal is proposed. It has a simply structured valve stem guidance in the region of one of its ends (5). The guidance comprises a separate securing element (6) with a basically U-shaped cro... | 10/29/2002 |
| 6467444 | Valve operating system in internal combustion engine A valve operating system in an internal combustion engine includes an associative-operation switchover means capable of switching over the associative operation of a pair of rocker arms disposed adjacent each other and the releasing of the associative-ope... | 10/22/2002 |
| 6463899 | Valve operating system in internal combustion engine In a valve operating system in an internal combustion engine, a swinging support section provided at a base end of a rocker arm is swingably carried on a rocker shaft mounted in a cylinder head. A plurality of valve abutments are provided at a tip end of ... | 10/15/2002 |
| 6460498 | Rocker arm It is aimed to prolong the life of a rocker arm in which rollers are housed in a full type form between a ring and a pin from a viewpoint completely different from the idea of improving the material. It is proposed to suitably control the relation between... | 10/08/2002 |
| 6453861 | Valve gear of internal combustion engine In an internal combustion engine, a pair of suction ports are formed on left and right sides of the rear of the cylinder head with respect to the vehicle body. A pair of exhaust ports is formed on left and right sides on the front side of the cylinder hea... | 09/24/2002 |
| 6439179 | Deactivation and two-step roller finger follower having a bracket and lost motion spring A roller finger follower includes an elongate body having a first side member and a second side member. A bracket having first and second sides is associated with the body. The first side of the bracket is disposed adjacent an inside surface of the first ... | 08/27/2002 |
| 6431135 | Valve operating system in internal combustion engine In a valve operating system in an internal combustion engine, a swinging support section provided at a base end of a rocker arm is swingably carried on a rocker shaft, and tappet screws are threadedly fitted in a plurality of boss portions formed at a tip... | 08/13/2002 |
| 6418898 | Valve operating system in internal combustion engine In a valve operating system in an internal combustion engine, a rocker arm has a plurality of valve abutments provided thereon and capable of being individually put into abutment against upper ends of a plurality of engine valves cam abutments, and also h... | 07/16/2002 |
| 6412460 | Valve operating system in internal combustion engine A valve operating system in an internal combustion engine includes a cam shaft provided with a valve operating cam, a rocker arm having a pair of support wall portions which are integrally connected at their base ends to a swinging support portion swingab... | 07/02/2002 |
| 6352062 | Roller rocker arm assembly Internal combustion engine valve roller rocker arm system designed to manipulate horsepower output of an equipped engine. Each roller rocker arm system is formed of two arm members pivotally mounted to a common shaft and are joined together by a pin throu... | 03/05/2002 |
| 6347607 | Valve operating system in internal combustion engine One of adjacent rocker arms in a valve operating system of an engine is provided with first and second support walls. A roller is disposed between the first and second support walls to come into rolling contact with cams. A cylindrical roller shaft, suppo... | 02/19/2002 |
| 6347606 | Valve operating system in internal combustion engine A valve operating system in an internal combustion engine includes a switchover pin which is movable between an associatively operating position where adjacent ones of rocker arms are operated in association with each other, and an associative-operation r... | 02/19/2002 |
| 6345597 | Non-rotatable valve lifter mechanism A non-rotatable valve lifter mechanism for use in an internal combustion engine includes a rotatable cam shaft having at least one confinement member disposed on the cam shaft adjacent to its cam lobe. The valve lifter includes a follower and includes at ... | 02/12/2002 |
| 6334416 | Sheet metal rocker arm, manufacturing method thereof, cam follower with said rocker arm, and assembling method thereof A sheet metal rocker arm manufactured by the steps of punching one metal plate to form a blank having a predetermined contour and through holes, and subjecting this blank to a bending work based on a press work to form a pair of side walls parallel to eac... | 01/01/2002 |
| 6325030 | Roller finger follower for valve deactivation A roller finger follower includes an elongate body having a first side and a second side. A first end and a second end interconnect and space apart the first and second sides. The first and second sides define a first and second pin orifice, respectively.... | 12/04/2001 |
| 6321705 | Roller finger follower for valve deactivation A deactivation roller finger follower for use with an internal combustion engine includes an elongate body. The body has a valve pallet end and a socket. The pallet end is configured for engaging a valve stem of the internal combustion engine. The socket ... | 11/27/2001 |
| 6318317 | Device for interrupting the power flow between at least one valve and at least one cam of camshaft The invention relates to a device for interrupting the power flow between at least one valve and at least one cam of a camshaft, especially in a valve mechanism of a reciprocating internal combustion engine. The device comprises a first actuating lever co... | 11/20/2001 |
| 6311660 | Rolling-contact cylindrical element In a case where crowning is provided on a contact surface of a tappet roller by the combination of, for example, two circular arcs, a logarithmic crowning is determined in which an edge load does not occur in the bearing pressure even if its inclination w... | 11/06/2001 |
| 6302075 | Roller finger follower shaft retention apparatus A roller finger follower (RFF) wherein the shaft of the roller bearing is restrained in the follower finger by the overhead cam. Ends of the shaft are positioned in place in the follower finger by notches formed in the side walls of the follower finger. T... | 10/16/2001 |
