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Class Information
Number: 123/90.48
Name: Internal-combustion engines > Poppet valve operating mechanism > Tappet
Description: Device comprising an element which is in direct contact with the actuating element (cam) and which transmits (ordinarily by reciprocatory movement) the motion of that element to other components of the operating mechanism.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 5213072 |
Valve actuating mechanism in the cylinder head of a combustion engine |
May. 25, 1993 |
| 5193496 |
Variable action arrangement for a lift valve |
Mar. 16, 1993 |
| 5168841 |
Tappet with ceramic seat plate |
Dec. 8, 1992 |
| 5161500 |
Outlet valve lifter for an internal combustion engine |
Nov. 10, 1992 |
| 5159906 |
Adjustable valve system for an internal combustion engine |
Nov. 3, 1992 |
| 5129372 |
Cup tappet body for valve tappets |
Jul. 14, 1992 |
| 5113811 |
Hydraulic valve control device for internal combustion engines |
May. 19, 1992 |
| 5103779 |
Electro-rheological valve control mechanism |
Apr. 14, 1992 |
| 5099807 |
Preloaded axle stake for roller follower |
Mar. 31, 1992 |
| 5090364 |
Two-step valve operating mechanism |
Feb. 25, 1992 |
| 5081976 |
Bucket tappet for an internal combustion engine with overhead camshaft |
Jan. 21, 1992 |
| 5070827 |
Low mass valve lifters |
Dec. 10, 1991 |
| 5060607 |
Tappet structure |
Oct. 29, 1991 |
| 5022356 |
Roller valve lifter with anti-rotation member |
Jun. 11, 1991 |
| 4995353 |
Valve train with lash/compliance compensation |
Feb. 26, 1991 |
| 4967705 |
Roller tappet assembly |
Nov. 6, 1990 |
| 4964741 |
Roller assembly |
Oct. 23, 1990 |
| 4930463 |
Electro-rheological valve control mechanism |
Jun. 5, 1990 |
| 4909198 |
Aluminum alloy valve lifter with sprayed coating and method of producing same |
Mar. 20, 1990 |
| 4909197 |
Cam follower assembly with pinless roller |
Mar. 20, 1990 |
| 4885952 |
Cylindrical tappet |
Dec. 12, 1989 |
| 4869215 |
Cam mechanisms |
Sep. 26, 1989 |
| 4850311 |
Three dimensional cam cardanic follower valve lifter |
Jul. 25, 1989 |
| 4846121 |
Variable friction roller tappets |
Jul. 11, 1989 |
| 4836155 |
Variable duration valve opening mechanism |
Jun. 6, 1989 |
| 4805567 |
Valve mechanism for at least two simultaneously actuable valves |
Feb. 21, 1989 |
| 4739675 |
Cylindrical tappet |
Apr. 26, 1988 |
| 4677945 |
Mechanical valve lifter construction adapted for mechanical/hydraulic valve lifter interchangability |
Jul. 7, 1987 |
| 4638772 |
Valve actuating apparatus for minimizing the need for lash adjustment |
Jan. 27, 1987 |
| 4637357 |
Tappet arrangement for engine valve train |
Jan. 20, 1987 |
| 4615440 |
Tappet cartridge assembly container and applicator |
Oct. 7, 1986 |
| 4615309 |
Valve actuating mechanism for internal combustion engine |
Oct. 7, 1986 |
| 4607599 |
Roller follower hydraulic tappet |
Aug. 26, 1986 |
| 4602409 |
Method for securing a funnel-shaped guide member in a self-adjusting hydraulic tappet |
Jul. 29, 1986 |
| 4580533 |
Valve mechanism having variable valve timing |
Apr. 8, 1986 |
| 4561393 |
Sealed unit for hydraulic lifter |
Dec. 31, 1985 |
| 4549509 |
Tappet |
Oct. 29, 1985 |
| 4510897 |
Mechanism for actuating the valve rockers of an internal combustion engine |
Apr. 16, 1985 |
| 4475490 |
Hydraulic valve lifter |
Oct. 9, 1984 |
| 4469056 |
Dual follower variable valve timing mechanism |
Sep. 4, 1984 |
| 4448155 |
Guide for roller cam follower |
May. 15, 1984 |
| 4406257 |
Cam roller follower |
Sep. 27, 1983 |
| 4387674 |
Valve train |
Jun. 14, 1983 |
| 4380216 |
Economical engine construction |
Apr. 19, 1983 |
| 4352344 |
Valve operating mechanism for internal combustion engines |
Oct. 5, 1982 |
| 4335685 |
Lifter assembly |
Jun. 22, 1982 |
| 4279226 |
Hydraulic tappet for an internal combustion engine having an overhead camshaft |
Jul. 21, 1981 |
| 4231267 |
Roller hydraulic valve lifter |
Nov. 4, 1980 |
| 4173954 |
Limited rotation roller tappet |
Nov. 13, 1979 |
| 4153017 |
Alloyed chilled iron |
May. 8, 1979 |
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