Pump cylinder lock

Details Pump cylinder lock Pump cylinder lock

2005-08-09

2005-08-09

Lazo, Thomas E. (Department: 3745)

Expansible chamber devices

With assembly or disassembly facilitating means

C403S359500

Reexamination Certificate

active

06925926

ABSTRACT:
A device that eliminates the need for torque, usually applied by large tools, in the assembly or maintenance of pumps. This device connects the cylinder (7) and upper housing (5) of a pump using a simple locking pin (9) that inserts through the upper housing (5) of the pump and along the flat (7a) on the pump cylinder (7). The cylinder (7) inserts into the upper housing (5) until the holes (11) for the pin are (9) aligned. Upon alignment, the locking pin (9) is inserted through both components and locked, thus connecting them.

REFERENCES:
patent: 181166 (1876-08-01), Halderman et al.
patent: 4462638 (1984-07-01), DenBesten et al.
patent: 5033433 (1991-07-01), Churchill et al.
patent: 5033443 (1991-07-01), Kato et al.
patent: 5064354 (1991-11-01), Robertson et al.
patent: 5495902 (1996-03-01), Hailey et al.

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