Title:
PREVENTING SUBMERSIBLE PUMP AIR LOCK
Document Type and Number:
WIPO Patent Application WO/2013/188741
Kind Code:
A3
Abstract:
Apparatus, including a pumping system, is provided featuring a pump and a control circuit. The pump has an impeller housing configured with a slit at the top for trapped air to leave the impeller housing once the pump has been submerged. The control circuit is configured to cycle the pump on and off for a predetermined number of cycles so that the trapped air will float to the top and be expelled out the slit when the pump is cycled off. The control circuit is configured to leave the pump on after the predetermined number of cycles.
Inventors:
LOPES JEFFREY (US)
ESTRADA JESUS (MX)
TEED KEVIN (US)
ESTRADA JESUS (MX)
TEED KEVIN (US)
Application Number:
PCT/US2013/045839
Publication Date:
February 13, 2014
Filing Date:
June 14, 2013
Export Citation:
Assignee:
FLOW CONTROL LLC (US)
LOPES JEFFREY (US)
ESTRADA JESUS (MX)
TEED KEVIN (US)
LOPES JEFFREY (US)
ESTRADA JESUS (MX)
TEED KEVIN (US)
International Classes:
F02M37/04; B23P15/02; F04D1/04
Foreign References:
| US6457940B1 | 2002-10-01 | |||
| US20120125624A1 | 2012-05-24 | |||
| US20100028166A1 | 2010-02-04 | |||
| US20030065425A1 | 2003-04-03 | |||
| US5647329A | 1997-07-15 |
Other References:
See also references of EP 2861374A4
Attorney, Agent or Firm:
BARBER, William, J. (Fressola Maguire & Barber LLP,755 Main Street, P.O. Box 22, Monroe Connecticut, US)
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