Shaft coupling and shifting mechanism for pneumatic pump

Details Shaft coupling and shifting mechanism for pneumatic pump Shaft coupling and shifting mechanism for pneumatic pump

2005-03-22

2005-03-22

Lazo, Thomas E. (Department: 3745)

Expansible chamber devices

With assembly or disassembly facilitating means

C092S138000, C403S300000

Reexamination Certificate

active

06868774

ABSTRACT:
Fluid pump assembly driven by a reciprocating piston, having an improved coupling between a driving shaft and a driven shaft and a fast-shifting switching mechanism for changing the direction of movement of the piston.

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