Flap valve device and regulation assembly

Valves and valve actuation – Rotary valves – Butterfly

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C123S337000

Reexamination Certificate

active

06554250

ABSTRACT:

The present invention relates to the field of regulation of the flow of fluids, gases, or liquids, in conduits, pipes, tubes or the like, and has for its object a flap valve device, as well as a regulation assembly comprising several such devices.
The present invention seeks essentially to provide a valve device to control a flow in a conduit or the like, of simple structure easy to make, if desired easy to install, permitting obtaining good sealing in the closed condition and requiring limited effort to manipulate it.
Moreover, said valve device should have a robust structure permitting resisting particularly vibrations and permitting implantation in an aggressive environment, for example below the hood of an automotive vehicle.
To this end, the present invention provides a pivoting flap valve device, with a flat body substantially in the form of a disc mounted on a support and control axle, for the regulation of the circulation of a fluid, particularly a liquid, between an upstream conduit portion and a downstream conduit portion, characterized in that the flap body is mounted centered on the axle, in that the two portions of conduit are axially spaced apart relative to each other and in that the internal surfaces of the opposed set-offs resulting from said axial offset or non-alignment of the portions, constitute bearing surfaces for two complementary seat portions for the flap body, located on opposite sides of the axle carrying said flap body.


REFERENCES:
patent: 3568975 (1971-03-01), Obermaier et al.
patent: 3627261 (1971-12-01), Ludeman
patent: 3750698 (1973-08-01), Walchle et al.
patent: 3931955 (1976-01-01), Jacobs
patent: 4273308 (1981-06-01), Nakai
patent: 4771740 (1988-09-01), Koike
patent: 5081972 (1992-01-01), Daly et al.
patent: 5465696 (1995-11-01), Gmelin
patent: 5531205 (1996-07-01), Cook et al.
patent: 5575256 (1996-11-01), Peters et al.
patent: 5615861 (1997-04-01), Pollmann et al.
patent: 5673895 (1997-10-01), Kaneko
patent: 5715782 (1998-02-01), Elder
patent: 6029949 (2000-02-01), Brown et al.
patent: 6123318 (2000-09-01), Forbes et al.
patent: 6135418 (2000-10-01), Hatton
patent: 0 947 681 (1999-10-01), None
patent: 03 018632 (1991-01-01), None

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

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

Rate now

     

Profile ID: LFUS-PAI-O-3104075

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.