Expansible chamber devices – Piston with rigid axially extending hollow stem – Relatively movable elongated part within stem
Patent
1974-05-10
1976-04-20
Maslousky, Paul E.
Expansible chamber devices
Piston with rigid axially extending hollow stem
Relatively movable elongated part within stem
92 94, 92100, 92129, 417471, 29525, F16J 300, F01B 1900
Patent
active
039510468
ABSTRACT:
A push rod and tappet assembly for a cam actuated pump in which a tappet having a barbed shank is lightly press fitted, during assembly, part-way into the hollow end of the push rod so that during the initial operating cycle of the pump, as the cam on which the tappet rides rotates through the first cycle of rotation, the pump piston to which the push rod is connected bottoms out and the shank of the tappet will then be forced further into the push rod to a position to thereafter provide substantially zero clearance in the pump.
REFERENCES:
patent: 1783940 (1930-12-01), Trumble
patent: 1899295 (1933-02-01), Schulze
patent: 2018153 (1935-10-01), Schulze
patent: 3328870 (1967-07-01), Rabinovich et al.
patent: 3793704 (1974-02-01), Antonevich
Lochmann Robert L.
MacManus Daniel C.
General Motors Corporation
Krein Arthur N.
Maslousky Paul E.
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