Electric pump

Details Electric pump Electric pump

2011-07-19

2011-07-19

Rodriguez, William H (Department: 3746)

Pumps

Including disengageable rotary or frangible drive connection

C417S321000

Reexamination Certificate

active

07980830

ABSTRACT:
A rotary shaft is rotatable relative to a motor rotor. A first end face of the motor rotor is exposed to the outside of a stator. A hammer portion is provided at the first end face. The hammer portion is configured to be movable as the motor rotor rotates. A collision portion rotating integrally with the rotary shaft is configured to collide with the hammer portion. The allowance space between the collision portion and the hammer portion allows the hammer portion to be move relative to the collision portion. Therefore, the electric pump is capable of detaching a rotor from a pump chamber without increasing the size of the pump.

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Korean Office Action dated Oct. 26, 2007 issued by Korean Patent Office for application No. 2007-0006795 without English translation.
Office Action for corresponding Japanese Application No. 2006-015549, dated Oct. 26, 2010.
Notice of Allowance for corresponding Japanese Application No. 2006-015549, dated Jan. 25, 2011.

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