Pumps – Expansible chamber type – Having pumping chamber pressure responsive distributor
Reexamination Certificate
2006-07-11
2006-07-11
Freay, Charles G. (Department: 3746)
Pumps
Expansible chamber type
Having pumping chamber pressure responsive distributor
C417S564000, C417S567000, C137S512400, C137S857000
Reexamination Certificate
active
07074022
ABSTRACT:
A reciprocating compressor including cylinder block with a plurality of cylinder bores. A piston is positioned in each bore and mounted to move in response to the a crankshaft, causing each piston to reciprocate within the cylinder bore. The compressor further includes a cylinder head, which includes bores corresponding to the bores in the cylinder block, and a suction port in fluid communication with a source of compressible gas and a plurality of suction plenum. Protrusions or ribs extend into the suction plenum. The cylinder head also includes a discharge plenum in communication with the outlet ports of the valve plate. Interposed between the cylinder head and the cylinder block is a valve plate assembly having a discharge valve, and a discharge valve retainer having a pair of radii assembled to the valve plate by snap fitting a cylinder head gasket over the discharge valve and retainer.
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Leonard Philip Scott
Majerus Benjamin Alan
Mantell Peter Douglas
Monk David Turner
Walters, Jr. John Richard
Bristol Compressors, Inc.
Freay Charles G.
McNees Wallace & Nurick LLC
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