Oil pump for chain saw

Details Oil pump for chain saw Oil pump for chain saw

1987-04-27

1988-08-16

Smith, Leonard E.

Pumps

Expansible chamber type

Pumping member position controlled port

92 13, 184 33, F04B 4900

Patent

active

047640936

ABSTRACT:
An oil pump for use in a chain saw in which the pumping plunger is constituted by a needle roller and in which gear cam portions which are formed separately from the needle roller are fitted and connected to the needle roller.

REFERENCES:
patent: 1238939 (1917-09-01), Pfleeger
patent: 2070203 (1937-02-01), Gregg
patent: 4000790 (1977-01-01), Seuter
patent: 4034830 (1977-07-01), Mukai
patent: 4036326 (1977-07-01), Mukai
patent: 4636147 (1987-01-01), Schweitzer
patent: 4678411 (1987-07-01), Wieland

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