Fluid cylinder assembly having minimized outside diameter

Details Fluid cylinder assembly having minimized outside diameter Fluid cylinder assembly having minimized outside diameter

1980-07-25

1982-07-06

Maslousky, Paul E.

Expansible chamber devices

With guide or seal on cylinder end portion for piston or...

Non-metallic seal means between piston or member and end...

92 52, F16J 1518

Patent

active

043376924

ABSTRACT:
A fluid cylinder assembly comprising a cylindrical shell and movable plunger member having an annular retainer internally threaded into one end of the shell so as to limit the extensibility of the plunger from the shell, such annular retainer being specially designed so as to enable the outside diameter of the shell to be minimized without adversely affecting the performance of the cylinder assembly. The resilient fluid seal between the retainer and the shell, normally located at a position interior of the retainer threads, is instead located exterior of the threads at the end of the shell. The retainer includes a radially-projecting flange portion, exterior of the end of the shell, having a chamfered annular recess therein which encloses the end of the shell and resists any tendency of the end of the shell to expand radially when the force of the plunger is imposed upon the retainer by prestressing the flange against such expansion.

REFERENCES:
patent: 2438285 (1948-03-01), Houldsworth
patent: 2517153 (1950-08-01), Wood
patent: 2740381 (1956-04-01), Dugle
patent: 2783744 (1957-03-01), Tennis
patent: 2923276 (1960-02-01), Flick et al.
patent: 3136221 (1964-06-01), Walker
patent: 3983789 (1976-10-01), Dodt et al.
patent: 4087897 (1978-05-01), Scholefield

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