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Patent Searching and Data


Title:
ANTI-AIRLOCK VALVE ASSEMBLY
Document Type and Number:
WIPO Patent Application WO/2015/130620
Kind Code:
A3
Abstract:
A pump, having a pump housing with an impeller arranged therein, features an anti-airlock valve assembly configured with a valve housing having a passageway configured with a vent hole to allow air to bleed out of the pump housing into the atmosphere so liquid can fill the pump housing, rise and engage the impeller in order to get the pump running; and a valve ball arranged in the passageway, the valve ball configured to rest against one part of the passageway so air can pass out of the vent hole, and also configured to be light or buoyant enough to respond to the liquid filling the pump housing, float upwardly and rest against another part of the passageway so as not to allow water to escape readily from the vent hole after the liquid rises to a sufficient level and substantially engages the impeller.

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Inventors:
MOORMANN, Randall H. (10 Canterbury Drive, Georgetown, Massachusetts, 01833, US)
Application Number:
US2015/017177
Publication Date:
November 26, 2015
Filing Date:
February 24, 2015
Export Citation:
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Assignee:
FLOW CONTROL LLC. (100 Cummings Center, Beverly, Massachusetts, 01915, US)
International Classes:
F04D9/00; F04D9/02
Foreign References:
US6206632B12001-03-27
US5095880A1992-03-17
US3769779A1973-11-06
US8276616B22012-10-02
US6250889B12001-06-26
US1993268A1935-03-05
US2144613A1939-01-24
US5785501A1998-07-28
US2757616A1956-08-07
Other References:
See also references of EP 3111093A4
Attorney, Agent or Firm:
BARBER, William, J. (Ware, Fressola Maguire & Barber LLP,755 Main Street, P.O. Box 22, Monroe Connecticut, 06468, US)
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