Chain saw oil pump with overload protection

Details Chain saw oil pump with overload protection Chain saw oil pump with overload protection

1974-10-17

1976-02-17

Pinkham, Richard C.

Lubrication

Lubricators

Belt, cable, chain or conveyor

301234, 30381, 83169, 145 35A, 184 32, F16N 736, F16N 1302, F16N 2502, F16N 2504

Patent

active

039386228

ABSTRACT:
Disclosed herein is a chain saw oil pump comprising an engine supported by a suitable frame, a pumping chamber defined by the frame and including an inlet and an outlet, a pumping member reciprocal and rotatable in said pumping chamber relative to the inlet and to the outlet so as to effect pumping operation incident to such reciprocation and rotation, and a spring biased gear for yieldably drivingly connecting the pumping member to the engine for rotation of the former in response to operation of the latter.

REFERENCES:
patent: 849530 (1907-04-01), Clay
patent: 2014113 (1935-09-01), Morse
patent: 2650626 (1953-09-01), Kiekhaefer
patent: 3068961 (1962-12-01), Stihl et al.
patent: 3331331 (1967-07-01), Irgens et al.
patent: 3717221 (1973-02-01), Densow

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