Title:
FLAPPER VALVE
Document Type and Number:
WIPO Patent Application WO/2012/112414
Kind Code:
A3
Abstract:
A flapper valve includes a valve body, a valve cover pivotally coupled to the valve body at a hinge between an open and closed position, and a biasing element biasing the valve cover to the closed position. The valve cover includes an interior face comprising a sealing surface and a boss including a face surrounded by a beveled edge joining the boss with the sealing surface.
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Inventors:
MACRAE JONATHAN (US)
FINCI BULENT (US)
PEDRAZA JAIME (US)
SCHIEL MARK (US)
FINCI BULENT (US)
PEDRAZA JAIME (US)
SCHIEL MARK (US)
Application Number:
PCT/US2012/024806
Publication Date:
November 08, 2012
Filing Date:
February 13, 2012
Export Citation:
Assignee:
THRUBIT B V (NL)
MACRAE JONATHAN (US)
FINCI BULENT (US)
PEDRAZA JAIME (US)
SCHIEL MARK (US)
MACRAE JONATHAN (US)
FINCI BULENT (US)
PEDRAZA JAIME (US)
SCHIEL MARK (US)
International Classes:
F16K1/18; F16K3/04
Foreign References:
| US7624809B2 | 2009-12-01 | |||
| US4605041A | 1986-08-12 | |||
| US4457376A | 1984-07-03 | |||
| US4846281A | 1989-07-11 | |||
| US4506729A | 1985-03-26 |
Other References:
See also references of EP 2671006A4
Attorney, Agent or Firm:
ROSE, Collin A. (14th FloorHouston, Texas, US)
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