| 摘要 |
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.
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