Cut valve with check valve

Details Cut valve with check valve Cut valve with check valve

2007-05-22

2007-05-22

Keasel, Eric (Department: 3753)

Fluid handling

Diverse fluid containing pressure systems

Fluid separating traps or vents

C137S043000, C137S512200, C137S198000, C137S493300

Reexamination Certificate

active

10975950

ABSTRACT:
A cut valve with a check valve includes a body case, a cap member, positive and negative pressure valves, and first and second springs. The body case defines a vent hole. The cap member is fitted to an upper portion of the body case. The positive pressure valve is made of resin, defines an opening part, and is disposed to be contactable with and separable from the vent hole from above. The first spring is disposed on the positive pressure valve and presses the positive pressure valve in a direction in which the positive pressure valve closes the vent hole. The negative pressure valve is made of resin and is disposed to be contactable with and separable from the opening part from below. The second spring presses the negative pressure valve in a direction in which the negative pressure valve closes the opening part.

REFERENCES:
patent: 2406502 (1946-08-01), Lines
patent: 5402818 (1995-04-01), Kasugai et al.
patent: 5439023 (1995-08-01), Horikawa
patent: 5582198 (1996-12-01), Nagino et al.
patent: 5836341 (1998-11-01), Ayers et al.
patent: 2004/0025937 (2004-02-01), Kojima
patent: 2005/0028869 (2005-02-01), Roth et al.

Affiliated with

Also associated with

Rating

Cut valve with check valve does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3740621