Expansible chamber devices – With guide or seal on cylinder end portion for piston or...
Patent
1989-03-14
1990-10-02
Look, Edward K.
Expansible chamber devices
With guide or seal on cylinder end portion for piston or...
92168, 921711, 277 58, 277 70, 277 73, 277102, 277103, 417569, F16J 1518
Patent
active
049600397
ABSTRACT:
An improved cylinder for pumps of the type where a plunger moves within a cylinder forcing fluid through a port in a cap fitted into one end of the cylinder. A multiple diameter cap encircled by a multiple diameter sleeve transmits the pressure force acting on the largest surface area of the cap through the sleeve to a smaller area acting on the packing seal. Since the pressure multiplied by the area is a constant, a higher pressure is applied to a smaller area at the seals; and with a higher pressure acting on the seals than existing in the working fluid, a seal is created to prevent passage of the fluid.
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Alstadt Lynn J.
Hydro-Pac, Inc.
Ingersoll Buchanan
Look Edward K.
Ryznic John E.
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