Did You Know...
...that Robert Adler has the dubious distinction of being the Father of the Couch Potato? Back in 1955 Adler was employed by what was then Zenith Radio Corp., where he was charged to invent something that would allow viewers to turn down the TV volume without leaving their chairs. After a series of flops (such as a wired contraption that people tripped over), Adler hit on the idea of using sound waves. Thus the Remote Control was born...
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7997243 | Ball type valve rotator An improved ball type valve rotator is provided that includes a main body segment having a bottom wall with an upper surface, and a body cap that overlies the main body segment. A ball cages assembly is housed between the main body segment and the body cap. The ball... | 08/16/2011 |
| 7997242 | Spring retainer and spring system A spring retainer can reduce the set height and mass of a coil spring. The spring retainer has a retainer body attached to a stem end of a valve and a circumferential plate-like spring part having an inner circumferential part supported by the retainer body and resi... | 08/16/2011 |
| 6662770 | Valve rotating device The invention relates to a valve rotator having an annular body in which are circumferentially provided several ball pockets having inclined ball races and in which a ball and a tangential spring are located in each case. In a rest position, the tangentia... | 12/16/2003 |
| 6588391 | Device for rotating a valve A device for rotating a valve for producing rotations of a gas charging valve in an internal combustion engine during its opening and closing movements. The device has a basic body having a plurality of pockets oriented in a peripheral direction for recei... | 07/08/2003 |
| 6539903 | Compound movement elliptic valve assembly The invention aims at achieving better filling of the cylinders located in the body of the valve (1) by implanting valves (2) with an elliptical head (3) whose linear opening/closing movement is complemented by a lateral rotation with a 55° amplitude, sa... | 04/01/2003 |
| 6526929 | Device for relative angular adjustment between two drive-connected elements rotating at the same rotational speed A device for relative angular adjustment between two drive-connected elements rotating at the same rotational speed, in particular between a chain wheel and a camshaft of an internal combustion engine, includes, as an actuating drive, an electrically comm... | 03/04/2003 |
| 5727507 | Valve rotation arrangement An improved valve rotation arrangement for providing valve rotation for a pressure medium valve in an internal combustion engine, especially a large diesel engine or gas engine, whereby the valve is opened under positive guidance for instance under the in... | 03/17/1998 |
| 5570663 | Valve rotator With vertical movement of a valve in an engine, a suspending member which suspends from a retainer engaged in the valve goes up and down with respect to a standing member on a cylinder head. A projection provided on the suspending member slides on incline... | 11/05/1996 |
| 4538558 | Valve rotating device The valve rotator comprises a body to be attached to and rotatable with the valve. The body has at least one groove therein extending partially around said valve stem. Shiftable means is disposed within the groove. A collar receives the valve spring biasi... | 09/03/1985 |
| 4484544 | Valve rotator A valve rotator is effective between a valve stem of an internal-combustion engine and a support, normally the cylinder head. The rotator comprises an upper spring plate, a lower spring plate spaced along an axis below this upper plate, a compression spri... | 11/27/1984 |
| 4425882 | Valve rotating device A valve rotator rotates a valve in an internal combustion engine about the axis of the stem of the valve. The valve is biased closed by a valve biasing spring. The valve rotator includes a body attached to and rotatable with the valve stem. The body has a... | 01/17/1984 |
| 4424773 | Valve rotator A valve rotator is effective between a valve stem of an internal-combustion engine and a support, normally the cylinder head. The rotator comprises an upper spring plate, a lower spring plate spaced along an axis below this upper plate, a compession sprin... | 01/10/1984 |
| 4241706 | Valve rotator assembly A rotator assembly for a poppet valve employed in an internal combustion engine employs a garter spring mounted in a circular groove concentric with the valve axis. A rotator plate rests on the garter spring so that the plate turns incrementally through a... | 12/30/1980 |
| 4227493 | Valve rotator A valve rotator for a valve in an internal combustion engine. The rotator has a body and a cap which surround the valve stem and are movable toward and away from each other. Coacting with the cap and the body are a spring washer for transferring axial loa... | 10/14/1980 |
| 4175505 | Valve rotator assembly A rotator assembly for a poppet valve employed in an internal combustion engine employs a garter spring mounted in a circular groove concentric with the valve axis. A rotator plate rests on the garter spring so that the plate turns incrementally through a... | 11/27/1979 |
| 4154424 | Valve rotator A valve is reciprocable between open and closed positions along a longitudinal axis and is rotatable about the axis by a rotator mechanism. The rotator mechanism includes first and second parts movable axially and rotatably relative to one another along a... | 05/15/1979 |
| 4141325 | Valve rotator A valve is reciprocable between opened and closed positions along a longitudinal axis and is rotatable about the axis by a rotator mechanism. The rotator mechanism includes first and second parts movable axially and rotatably relative to one another along... | 02/27/1979 |
| 4094280 | Valve rotating device An improved garter spring actuated valve rotator device wherein annular spring damping means are included internally of the coils of the garter spring.... | 06/13/1978 |
| 4075987 | Valve rotator An improved valve rotator includes a plurality of biasing springs which are effective to urge associated balls toward the shallow ends of ramps formed between a pair of housing members. The total force applied against the balls by the biasing springs is s... | 02/28/1978 |
| 3952713 | Valve rotator A rotator for a valve which is reciprocable along a longitudinal axis between open and closed positions and which is rotatable about such axis. The rotator includes a pair of parts movable axially and rotatably relative to one another along and about the ... | 04/27/1976 |
