Spray pump assembly

Details Spray pump assembly Spray pump assembly

1976-06-01

1977-12-20

Freeh, William L.

Pumps

Expansible chamber type

Valved piston

F04B 2104, G01F 1102

Patent

active

040638545

ABSTRACT:
A finger-operated spray pump assembly adapted to maintain a seal against leakage under substantially all conditions normally encountered by the pump. The assembly includes a compression chamber, a piston slidable in the compression chamber, a stem slidable in the piston, and a seal member abutting the piston. The lower end of the valve stem contacts the seal member to open the seal slightly before the piston starts its downstroke. A closure member for the container to be used is permanently attached to the spray pump.

REFERENCES:
patent: 3187960 (1965-06-01), Gorman
patent: 3627206 (1971-12-01), Boris
patent: 3640470 (1972-02-01), Susuki
patent: 3954354 (1976-05-01), Boris

Affiliated with

Also associated with

Rating

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

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-596681