Trigger sprayer venting system

Details Trigger sprayer venting system Trigger sprayer venting system

2007-12-11

2007-12-11

Kaufman, Joseph A. (Department: 3754)

Dispensing

With discharge assistant

With material supply container and discharge assistant with...

C222S481500, C239S333000

Reexamination Certificate

active

10961286

ABSTRACT:
A venting system of a manually operated trigger sprayer vents the interior of a liquid container connected to the trigger sprayer. The trigger sprayer is provided with a vent chamber that surrounds the pump chamber, and a vent piston that surrounds the pump piston. The vent piston is received in the vent chamber for reciprocating movements with the pump piston in the pump chamber. The reciprocating movement of the vent piston alternatively opens the vent chamber to the exterior environment of the trigger sprayer and thereby vents the interior of the liquid container connected to the trigger sprayer, and closes the vent chamber thereby sealing the interior of the liquid container from the exterior environment.

REFERENCES:
patent: 4072252 (1978-02-01), Steyns et al.
patent: 4230277 (1980-10-01), Tada
patent: 4350298 (1982-09-01), Tada
patent: 4815663 (1989-03-01), Tada
patent: 4819835 (1989-04-01), Tasaki
patent: 4958754 (1990-09-01), Dennis
patent: 5337928 (1994-08-01), Foster et al.
patent: 5996847 (1999-12-01), Smolen et al.
patent: 2006/0086762 (2006-04-01), Foster et al.
patent: 2006/0086763 (2006-04-01), Foster

Affiliated with

Also associated with

Rating

Trigger sprayer venting system does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3829182