Self-priming pump

Details Self-priming pump Self-priming pump

1986-07-02

1987-08-04

Croyle, Carlton R.

Pumps

Motor driven

Electric or magnetic motor

417199A, 417299, 137216, F04B 4902, F16K 2400

Patent

active

046843337

ABSTRACT:
A communication hole is bored through a partition member which divides an intake-side priming fluid chamber from a discharge-side priming fluid chamber, whereby the two chambers are connected. The communication hole serves to prevent, on a predetermined level, a backflow of a pump fluid due to siphonage caused on the intake side when pumping operation is stopped, thereby securing a priming fluid in a pump casing. A valve assembly including a valve member is disposed corresponding to the communication hole. The valve member, which is always urged to an open position, is moved to and held in a position where it is caused to close the communication hole by the action of the pump fluid flowing in a feeding direction during pumping operation. When the pump is stopped to cause the backflow of the fluid, the valve member is moved back to the open position by the urging action.

REFERENCES:
patent: 3465681 (1969-09-01), Zimmermann
patent: 4047847 (1977-09-01), Okawa
patent: 4152099 (1979-05-01), Bingler
patent: 4545735 (1985-10-01), Ims

Affiliated with

Also associated with

Rating

Self-priming pump does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Self-priming pump, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Self-priming pump will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-881922