Plug device for the penetration of a plunger rod into a cylinder

Details Plug device for the penetration of a plunger rod into a cylinder Plug device for the penetration of a plunger rod into a cylinder

1980-01-17

1983-11-08

Clements, Gregory N.

Spring devices

Vehicle

Comprising compressible fluid

18832217, F16F 936

Patent

active

044138172

ABSTRACT:
The cylinder of a gas spring has a bottom constituted by a plug designed for allowing gastight penetration of a plunger rod into the cylinder thanks to a seal having a lip surrounding this rod in sliding frictional engagement therewith. The seal is sandwiched between two annular holders respectively located on the outer side and on the inner side of the seal. The outer holder plays the part of a mechanical guide for the plunger rod whereas the inner holder plays the part of an oil retainer for lubrication of the seal lip.

REFERENCES:
patent: 2352401 (1944-06-01), O'Connor
patent: 3731914 (1973-05-01), Cope et al.
patent: 3856287 (1974-12-01), Freitag
patent: 3927871 (1975-12-01), de Baan
patent: 4064977 (1977-12-01), Taylor
patent: 4079925 (1978-03-01), Salin
patent: 4089512 (1978-05-01), Allinquant et al.
patent: 4189033 (1980-02-01), Katsumori
patent: 4194731 (1980-03-01), Marx

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