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Class Information
Number: 123/90.39
Name: Internal-combustion engines > Poppet valve operating mechanism > Rocker
Description: Device comprising a pivoted element, usually directly engaging a valve stem, which transmits the motion developed in the operating mechanism to the valve.


Sub-classes under this class:

Class Number Class Name Patents
123/90.44 Cam engaged 350
123/90.41 Individually fulcrumed 208
123/90.45 Lash adjustment 109
123/90.4 Plural valves 107
123/90.47 Yieldable engagement 14


Patents under this class:
1 2 3 4 5 6 7 8 9 10 11

Patent Number Title Of Patent Date Issued
4703729 Intake system with double intake ports for internal combustion engine Nov. 3, 1987
4697473 Rocker arm with cam-contacting roller Oct. 6, 1987
4694788 Internal combustion engine rocker arm Sep. 22, 1987
4683847 Valve system for overhead valve type four-cycle engine Aug. 4, 1987
4682575 Low friction high speed rocker arm Jul. 28, 1987
4674453 Rocker arm and method of forming the same Jun. 23, 1987
4672927 Valve actuator for internal combustion engine Jun. 16, 1987
4655176 Adjustable ratio roller rocker for internal combustion engines Apr. 7, 1987
4653441 Engine rocker arm assembly Mar. 31, 1987
4643144 Operating element for operating the valves of an internal combustion engine Feb. 17, 1987
4632074 Wear-resistant member for use in internal combustion engine and method for producing the same Dec. 30, 1986
4630576 Intake valve rocker arms of certain six cylinder internal combustion engines Dec. 23, 1986
4628874 Roller follower axle retention Dec. 16, 1986
4627392 Ceramic tip cast in valve rocker arm Dec. 9, 1986
4627391 Engine valve train system Dec. 9, 1986
4617883 Pivot members for a cam follower of valve mechanism for internal combustion engine Oct. 21, 1986
4617880 Valve actuating apparatus for optionally resting the operation of a valve in internal combustion engine Oct. 21, 1986
4614171 Rocker arm construction Sep. 30, 1986
4612887 Valve actuating apparatus for resting the operation of a valve in internal combustion engine Sep. 23, 1986
4611558 Valve actuating apparatus in internal combustion engine Sep. 16, 1986
4607600 Valve actuating apparatus in internal combustion engine Aug. 26, 1986
4594973 Cross head for internal combustion engine Jun. 17, 1986
4593662 Valve control of a supercharged four-cycle internal combustion engine Jun. 10, 1986
4584974 Valve operation changing system of internal combustion engine Apr. 29, 1986
4583502 Wear-resistant member for use in an internal combustion engine Apr. 22, 1986
4576128 Valve operation stopping means for multi-cylinder engine Mar. 18, 1986
4561391 Four valve for cylinder engine with single overhead camshaft Dec. 31, 1985
4556025 Engine valve mechanism having valve disabling device Dec. 3, 1985
4519345 Adjustable ratio rocker arm May. 28, 1985
4498432 Variable valve timing arrangement for an internal combustion engine or the like Feb. 12, 1985
4497307 Integral rocker arm hydraulic lifter and bearing assembly Feb. 5, 1985
4488520 Valve rocker assembly Dec. 18, 1984
4485770 Material for valve-actuating mechanism of internal combustion engine Dec. 4, 1984
4476824 Mechanical control element having wear-resistant surface Oct. 16, 1984
4475489 Variable valve timing device for an internal combustion engine Oct. 9, 1984
4452188 Apparatus for controlling feed of oil discharged from oil pump Jun. 5, 1984
4448166 Overhead cam type diesel engine May. 15, 1984
4440121 Locknut device for engine rocker arm adjustment Apr. 3, 1984
4438734 Overhead camshaft engine Mar. 27, 1984
4438738 Rocker arm and process for producing the same Mar. 27, 1984
4430969 Composite rocker arm and process Feb. 14, 1984
4430783 Method of making a rocker arm Feb. 14, 1984
4425881 Reciprocating engine air intake system Jan. 17, 1984
4402284 Internal combustion engine rocker arm arrangement having a readily replaceable plate spring Sep. 6, 1983
4401064 Rocker arm fitting structure Aug. 30, 1983
4397270 Valve operating mechanism for internal combustion engines Aug. 9, 1983
4387673 Valve opening control device Jun. 14, 1983
4365785 Rocker-arm having perpendicular geometry at valve mid-lift Dec. 28, 1982
4354460 Variable valve event engine Oct. 19, 1982
4336775 Valve selector Jun. 29, 1982

1 2 3 4 5 6 7 8 9 10 11


 
 
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