Pressurized fluid device

Details Pressurized fluid device Pressurized fluid device

1982-05-21

1985-01-01

Marcus, Stephen

Fluent material handling, with receiver or receiver coacting mea

Filling means with receiver or receiver coacting means

Supply means carried receiver flow control opening means

267 6428, 277 3, F16F 906

Patent

active

044911602

ABSTRACT:
In a pressurized fluid device a cavity is defined within a container. A piston rod passes through a piston rod guide and seal unit of the container. The piston rod guide and seal unit has an axially inner and an axially outer sealing element sealingly engaging the piston rod. The axially inner sealing element acts as a check valve permitting flow of fluid towards the cavity and preventing flow of fluid out of the cavity. An intermediate chamber is defined between the axially inner and the axially outer sealing element around the piston rod. A filling passage is provided across the piston rod guide and sealing unit. This filling passage includes an axially outer filling passage section across the axially outer sealing element between the intermediate chamber and the exterior of the pressurized fluid device.

REFERENCES:
patent: Re28329 (1975-02-01), Nicholls
patent: 2778390 (1957-01-01), Young, Jr.
patent: 3139159 (1964-06-01), Lob
patent: 3160182 (1964-12-01), O'Donnell
patent: 3273607 (1966-09-01), O'Neill, Jr.
patent: 3277674 (1966-10-01), Klein et al.
patent: 3804217 (1974-04-01), Keijzer et al.
patent: 4044866 (1977-08-01), Ishida
patent: 4082255 (1978-04-01), Masclet et al.
patent: 4291788 (1981-09-01), Kato
patent: 4335871 (1982-06-01), Molders

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