Expansible chamber devices – With lubricating means – Piston has lubricant retaining or conducting means
Patent
1974-03-08
1976-01-06
Cohen, Irwin C.
Expansible chamber devices
With lubricating means
Piston has lubricant retaining or conducting means
91488, 92172, 92187, 92255, 403379, F16J 108, F16J 122
Patent
active
039304370
ABSTRACT:
The piston is formed with a piston head and a sleeve, fitted together such that the piston head has an outer end diameter matching the diameter of the cylinder, and then is formed with an offset inwardly extending shoulder, against which the piston sleeve can bear, to permit machining of the inner face of the piston head to form a bearing cup for a spherical head of a piston rod, and then assembly of the piston sleeve to bear against the abutment; drain line and oil connection lines may be formed in the piston to lead lubricating oil to the bearing cup. The piston head and sleeve can be connected by adhesives and, if necessary, tangentially located transverse pins.
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patent: 2066802 (1937-01-01), Rowntree et al.
patent: 2077688 (1937-04-01), Gottlieb
patent: 2141935 (1938-12-01), Rose
patent: 2974636 (1961-03-01), Farmer
patent: 3073254 (1963-01-01), Hoover
patent: 3172340 (1965-03-01), Blenkle
patent: 3173376 (1965-03-01), Hulman et al.
patent: 3183786 (1965-05-01), Defoe, Jr.
patent: 3343460 (1967-09-01), Jones
patent: 3474710 (1969-10-01), Stryker
Cohen Irwin C.
Von Roll AG
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