Suck-back pump

Details Suck-back pump Suck-back pump

1984-03-26

1986-07-01

Look, Edward K.

Pumps

Correlated pump and motor or clutch control

Pump distributor control

222571, 251 63, 251 636, 417 85, F04B 900

Patent

active

045977194

ABSTRACT:
A suck-back pump for preventing any additional amount of liquid from dropping out of the tip of a delivery pipe, after a predetermined amount of liquid has been delivered from the delivery pipe. The suck-back pump includes inlet and outlet ports for liquid, first and second chamber respectively connected with the inlet and outlet ports, a communicating passage for connecting the first and second chambers with each other, a shut-off valve movable to close the communicating passage, and a suction element movable to change the volume of the second chamber. The actuation of the suction element is retarded so that it is actuated after the shut-off valve has been actuated.

REFERENCES:
patent: 862867 (1907-08-01), Eggleston
patent: 3895748 (1975-07-01), Klingenberg
patent: 4139333 (1979-02-01), Sipos
patent: 4142707 (1979-03-01), Bjorklund
patent: 4253379 (1981-03-01), Olson
patent: 4422835 (1983-12-01), McKee
patent: 4452573 (1984-06-01), Samuel

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1079841