US PATENT SUBCLASS 123 / 90.48
.~ Tappet

Current as of: June, 1999
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123 /   HD   INTERNAL-COMBUSTION ENGINES

90.1  DF  POPPET VALVE OPERATING MECHANISM {19}
90.48.~ Tappet {4}
90.49  DF  .~.~> Cushion and silencer
90.5  DF  .~.~> Rotation prevention
90.51  DF  .~.~> Composition, surface treatment manufacture
90.52  DF  .~.~> Lash adjustment {1}

DEFINITION

Classification: 123/90.48

(under subclass 90.1) 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.

(1) Note. Occasionally a tappet is more descriptively referred to as a cam follower.

SEE OR SEARCH CLASS

74, Machine Element or Mechanism,

569, for a mechanism element in the form of a cam follower.