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| Number | Title | Issue Date |
| 4898206 | Compression release retarder with valve motion modifier Apparatus is provided to increase the retarding horsepower of a compression release engine retarder driven from the exhaust valve pushtube or the fuel injector pushtube which includes a plenum communicating with the exhaust valve slave piston and the mast... | 02/06/1990 |
| 4840387 | Self-actuating keyless chuck A self-actuating keyless chuck for use with a reversible powered driver is disclosed. The chuck comprises a body which carries a rotatable split nut and a plurality of slidable jaws driven by the rotatable nut. A sleeve member is rotatably connected to th... | 06/20/1989 |
| 4838516 | Compression release retarder with valve motion modifier Apparatus is provided to increase the retarding horsepower of a compression release engine retarder driven from the exhaust valve pushtube or the fuel injector pushtube which includes a plenum communicating with the exhaust valve slave piston and the mast... | 06/13/1989 |
| 4793307 | Rocker arm decoupler for two-cycle engine retarder The invention is applicable to an internal combustion engine of the four-stroke cycle type equipped with a compression release engine retarder capable of producing one compression release event and one bleeder retarding event in each cylinder during every... | 12/27/1988 |
| 4706624 | Compression release retarder with valve motion modifier A process and apparatus are provided to increase the retarding horsepower of a compression release engine retarder driven from the exhaust valve pushtube or the fuel injector pushtube. The mechanism includes a plenum communicating with the exhaust valve s... | 11/17/1987 |
| 4706625 | Engine retarder with reset auto-lash mechanism An improved compression release retarder for internal combustion engines is disclosed. The improvement comprises hydro-mechanical mechanisms incorporated principally into the slave piston and adjustable stop which assures a prompt closing of the engine ex... | 11/17/1987 |
| 4688384 | Braking boost pressure modulator and method A method and apparatus for controlling the intake manifold air pressure during compression release engine retarding of a turbocharged internal combustion engine are disclosed. The apparatus comprises a solenoid actuated pressure responsive means communica... | 08/25/1987 |
| 4664070 | Hydro-mechanical overhead for internal combustion engine An hydromechanical overhead is provided for a four-cycle internal combustion engine. The hydromechanical overhead includes a set of master cylinders and pistons adapted to be actuated by each of the engine exhaust and intake pushtubes, a set of slave cyli... | 05/12/1987 |
| 4611960 | Tool holder A tool holder of the two-jaw type is provided which has the centering accuracy and gripping power of a three-jaw geared chuck. The tool holder includes a body having ways formed by a polygonal passageway which is perpendicular to the central axis of the t... | 09/16/1986 |
| 4592319 | Engine retarding method and apparatus Process and apparatus for the compression release retarding of a multi-cylinder four cycle internal combustion engine are provided. The process provides a compression release event and a bleeder event or a second compression releaser event for each engine... | 06/03/1986 |
| 4572114 | Process and apparatus for compression release engine retarding producing two compression release events per cylinder per engine cycle Process and apparatus for the compression release retarding of a multi-cylinder four cycle internal combustion engine are provided. The process provides a compression release event for each cylinder during each revolution of the engine crankshaft. In acco... | 02/25/1986 |
| 4510900 | Hydraulic pulse engine retarder A compression release engine retarder for a multicylinder four-stroke cycle engine is disclosed. The retarder incorporates an hydraulic pulse generator including a multichamber positive displacement pump of the piston and cylinder or gear pump type which ... | 04/16/1985 |
| 4429532 | Apparatus and method for temporarily converting a turbocharged engine to a compressor Apparatus and method are provided for temporarily converting a turbocharged engine into a compressor that can provide compressed air for various uses, such as for pneumatic unloading of cargo. In a preferred embodiment a compression release engine brake i... | 02/07/1984 |
| 4399787 | Engine retarder hydraulic reset mechanism An hydraulic reset mechanism is provided for an engine retarder of the compression relief type. The mechanism senses the force required to hold open an exhaust valve. When this force has decreased substantially from the force required to open the exhaust ... | 08/23/1983 |
| 4398510 | Timing mechanism for engine brake Hydro-mechanical brake timing means are provided to control the timing of an engine braking system of the gas compression type for an internal combustion engine wherein the engine braking system includes a hydro-mechanical mechanism which opens the exhaus... | 08/16/1983 |
| 4395884 | Method and apparatus for improved engine braking and operation A method and apparatus for providing improved engine braking and improved engine operation following a braking operation is disclosed. The invention relates to a turbocharged internal combustion engine fitted with a compression relief type of engine brake... | 08/02/1983 |
| 4296605 | Compression relief retarders for supercharged internal combustion engines An engine braking system is provided for an internal combustion engine of the Otto or Diesel type fitted with an exhaust gas supercharger and an air-to-air intercooler driven by a turbofan and having a gas compression relief type of engine brake. A contro... | 10/27/1981 |
| 4271796 | Pressure relief system for engine brake A pressure relief system for an internal combustion engine compression relief engine brake is disclosed. The pressure relief system comprises a bi-stable ball relief valve associated with the high pressure hydraulic system together with damping means adap... | 06/09/1981 |
| 4251051 | Solenoid structure having a relatively unrestrained generally flat armature member An improved solenoid adapted for use in a solenoid actuated valve or switch is disclosed. Increased speed of operation and increased capacity result from the incorporation of a plate or disc type of armature which is relatively unrestrained with respect t... | 02/17/1981 |
| 4214652 | Variable power transmission and absorption device An apparatus is provided which is adapted to deliver or absorb variable amounts of torque or to deliver variable quantities of an incompressible fluid at a predetermined pressure. The device comprises a positive displacement pump capable of pumping a comp... | 07/29/1980 |
