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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:

Class Number	Class Name	Patents
123/90.51	Composition, surface treatment manufacture	151
123/90.49	Cushion and silencer	57
123/90.52	Lash adjustment	126
123/90.5	Rotation prevention	155

Patents under this class:

1 2 3 4 5 6

Patent Number	Title Of Patent	Date Issued
4152953	Roller cam follower with anti-rotation device	May. 8, 1979
4112884	Valve lifter for internal combustion engine	Sep. 12, 1978
4007716	Offset valve lifter effecting valve rotation	Feb. 15, 1977
3977370	Roller tappet	Aug. 31, 1976