Plastic and nonmetallic article shaping or treating: processes – Direct application of fluid pressure differential to... – With internal application of fluid pressure
Patent
1989-05-18
1991-07-16
Tentoni, Leo B.
Plastic and nonmetallic article shaping or treating: processes
Direct application of fluid pressure differential to...
With internal application of fluid pressure
264237, 2643288, 26432812, 26432813, 26432814, 425812, B29C 4500, B29C 4534, B29C 4572, B29D 2200
Patent
active
050323458
ABSTRACT:
A pressurized fluid reservoir having a variable working volume includes a cylinder body having a fixed storage volume an a first inlet and exhaust structure for allowing a compressible fluid to enter and leave the cylinder. A second inlet and exhaust structure is also provided or allowing a substantially incompressible fluid to enter and leave the cylinder. A first charge mechanism pumps the compressible fluid into the cylinder. A second charge mechanism pumps the substantially incompressible fluid into the cylinder to reduce the cylinder fixed storage volume to a desired working volume into which the compressible fluid cna be pumped by the first charge mechanism.
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Ladney Michael
Tentoni Leo B.
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