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Patent Searching and Data


Title:
PRIMING VALVE SYSTEM FOR PRE-PRIMING CENTRIFUGAL PUMP INTAKES
Document Type and Number:
WIPO Patent Application WO/2013/033411
Kind Code:
A3
Abstract:
A priming valve (18) that primes a centrifugal pump (14) includes a valve assembly (46) separating an inlet chamber (40) from an outlet chamber (42). The inlet chamber is fluidly coupled to an intake of the centrifugal pump and the outlet chamber is fluidly coupled to a priming pump (12). A control valve (36) is provided to operate the valve assembly in order to fluidly connect the inlet chamber with the outlet chamber. While the valve assembly fluidly connects the inlet chamber with the outlet chamber, the priming pump can operate to replace air in the intake and the centrifugal pump with water.

Inventors:
JOHNSON, David William (302 18th Street East, Hastings, Minnesota, 55033, US)
Application Number:
US2012/053163
Publication Date:
December 05, 2013
Filing Date:
August 30, 2012
Export Citation:
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Assignee:
WATEROUS COMPANY (125 Hardman Avenue S, South St. Paul, Minnesota, 55075-2456, US)
JOHNSON, David William (302 18th Street East, Hastings, Minnesota, 55033, US)
International Classes:
F04D9/00
Foreign References:
US2790393A1957-04-30
US2033981A1936-03-17
US3578880A1971-05-18
Attorney, Agent or Firm:
FRONEK, Todd R. et al. (Dicke, Billig & Czaja PLLC,100 S. Fifth Street,Suite 225, Minneapolis Minnesota, 55402, US)
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