Metal working – Means to assemble or disassemble – Puller or pusher means – contained force multiplying operator
Patent
1988-03-21
1989-06-06
Goldberg, Howard N.
Metal working
Means to assemble or disassemble
Puller or pusher means, contained force multiplying operator
291564R, 29428, B21K 120
Patent
active
048358495
ABSTRACT:
A pressure relief valve for a hermetically sealed reciprocating piston compressor is made in which a bore in a compressor cylinder head defines the valve body. Valve components are introduced into the bore through a valve opening on the bottom surface of the cylinder head. A discharge pressure chamber in the cylinder head also has a discharge pressure opening on the bottom surface. A path is provided between the valve opening and the discharge pressure opening, when the compressor is assembled, by means of a duct in a valve plate interposed between the cylinder head and a compressor crankcase. Also disclosed is a method for assembling the pressure relief valve in a cylinder head, whereby the valve components are temporarily retained within the bore by a washer-shaped soft metal valve seat that is compressed and expanded into an annular undercut or recess in the bore located adjacent to the bottom surface of the cylinder head. Upon final assembly of the cylinder head to the crankcase, the valve seat and other valve components are positively retained within the bore.
REFERENCES:
patent: 1692395 (1928-11-01), Thomas
patent: 2405466 (1946-08-01), Tabb
patent: 2812893 (1957-11-01), Cotter
patent: 2929551 (1960-03-01), Heidorn
patent: 3255954 (1966-06-01), Norlin et al.
patent: 3373763 (1968-03-01), Smilges et al.
patent: 3442491 (1969-05-01), Messerschmidt
patent: 3570095 (1971-03-01), Miner
patent: 3679328 (1972-07-01), Cattanach
patent: 3759057 (1973-09-01), English et al.
patent: 4270885 (1981-06-01), Shaffer et al.
patent: 4408967 (1983-10-01), Unger et al.
patent: 4427346 (1984-01-01), Romer
patent: 4459817 (1984-07-01), Inagaki et al.
patent: 4522568 (1985-06-01), Gelse et al.
patent: 4688312 (1987-08-01), Sasao et al.
Ahlersmeyer David L.
Cuda Irene
Goldberg Howard N.
Hoffman John F.
Jeffers Albert L.
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