Oiler for power chain saw

Details Oiler for power chain saw Oiler for power chain saw

1975-03-20

1976-07-06

Pinkham, Richard C.

Lubrication

Lubricators

Belt, cable, chain or conveyor

184 27R, 417501, 30382, F16N 7 14

Patent

active

039676986

ABSTRACT:
A power chain saw oiling device that automatically supplies lubricating oil to the cutting chain and guiding cutting bar. The device is easy and economical to fabricate and to assemble in the saw. An oil reservoir is formed in the saw housing and an oil flow path leads from the reservoir through a piston type pump to an oil distribution cavity open to the cutting bar and chain. The piston is operated directly by sliding contact against a cam rotated with the output shaft. A bypass tube of relatively narrow cross section is provided from the pump output chamber and discharges into the oil reservoir from its discharge end which is located above the distribution cavity to the cutting bar and chain. Oil flow from the pump is thus directed both to the oil distribution cavity for chain lubrication and to the bypass tube back to the oil reservoir. Under normal saw operation oil flow occurs to both, with sufficient discharge occurring to the chain for proper lubrication thereof; whereas the uphill pitch of the bypass tube creates a back pressure so that under low speed saw operation most, if not all, of the oil flow effectively goes to lubricate the chain and little or no oil is bypassed to the oil reservoir.

REFERENCES:
patent: 2062447 (1936-12-01), Davis
patent: 2157970 (1939-05-01), Rowland et al.
patent: 3382898 (1968-05-01), Walker
patent: 3763962 (1973-10-01), Gottlieb
patent: 3870125 (1975-03-01), Gorski

Affiliated with

Also associated with

Rating

Oiler for power chain saw does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Oiler for power chain saw, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Oiler for power chain saw will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1529134