Water pump

Details Water pump Water pump

2005-05-24

2005-05-24

Nguyen, Ninh H. (Department: 3745)

Rotary kinetic fluid motors or pumps

Bearing, seal, or liner between shaft or shaft sleeve and...

Seal

C415S915000

Reexamination Certificate

active

06896486

ABSTRACT:
A water pump includes an engage mechanism25which is disposed between a pump body21and the end portion of a pump shaft23opposite to the side where an impeller22is attached, while engaging the pump shaft to the pump body against the urging force of the urging member which urges a mechanical seal24. The engage mechanism includes an annular member26which is rotatably fitted to the pump shaft23while contacting the pump body21, and a cylindrical engage pin27which pierces the pump shaft23in the diameter direction while sandwiching the annular member26with the pump body21.

REFERENCES:
patent: 2170134 (1939-08-01), Flick
patent: 2842063 (1958-07-01), Kishline et al.
patent: 4784088 (1988-11-01), Tamba et al.
patent: 6-31197 (1994-08-01), None
patent: 2000-87744 (2000-03-01), None

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