Valve

Details Valve Valve

2000-04-20

2001-05-22

Chambers, A. Michael (Department: 3753)

Fluid handling

With casing, support, protector or static constructional...

Jacketed

C137S540000, C137S540110, C137S540110

Reexamination Certificate

active

06234194

ABSTRACT:

BACKGROUND OF THE INVENTION
The invention relates to a valve in which a valve body is urged against a valve seat under the force of a valve spring which in turn is supported against a valve cap.
In known valves the valve bodies, which as a rule are spherically configured in the area of the valve seat, are urged against a correspondingly conically shaped valve plate. The production of a long-lasting tight valve seat thereby requires a large manufacturing effort.
SUMMARY OF THE INVENTION
It is the object of the invention to further develop a valve of the kind described above such that a well-sealed installation and long-lasting good sealing effect at the valve seat can be achieved in a simple manner.
The valve according to the invention has, in an advantageous manner, in a valve body which is urged against a valve seat under the pressure of a valve spring in contact with a valve cap, an enclosure member for the valve plate, which is coated with an elastomer. In a preferred embodiment, the valve seat itself also is formed by the elastomer-coated enclosure, and a separate valve plate is omitted.
In a simple manner, the valve plate can thereby be stamped out from a piece of sheet metal previously coated with the elastomer and having the necessary material thickness. In order to form a complete valve housing, the valve plate is preferably held on the valve cap by folds in such a way that the valve body lies in contact with the valve seat under a bias. Thus only a few working operations are required in order to produce a complete, functional valve. The elastomer on the valve plate is sufficiently resilient to assure a long-lasting good seal against the valve seat and to compensate for slight manufacturing tolerances.


REFERENCES:
patent: 1779503 (1930-10-01), Swindini
patent: 3913615 (1975-10-01), Cooper
patent: 3937250 (1976-02-01), Golan et al.
patent: 4046406 (1977-09-01), Press et al.
patent: 4489754 (1984-12-01), Seessle et al.
patent: 4553562 (1985-11-01), Nakada
patent: 4667697 (1987-05-01), Crawford
patent: 4815493 (1989-03-01), Miller et al.
patent: 4827968 (1989-05-01), Brown
patent: 4862913 (1989-09-01), Wildfang
patent: 5193579 (1993-03-01), Bauer et al.
patent: 5271429 (1993-12-01), Bauer et al.
patent: 5353834 (1994-10-01), Schmitt et al.
patent: 5546981 (1996-08-01), Li et al.
patent: 5692539 (1997-12-01), Pickl Jr.
patent: 5794657 (1998-08-01), Oberg
patent: 6019125 (2000-02-01), Reverberi
patent: 6089262 (2000-07-01), Hart

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2474256