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Title:
APPARATUS FOR NON-CLOGGING PUMPS
Document Type and Number:
WIPO Patent Application WO/2012/009021
Kind Code:
A3
Abstract:
Improvements in the operation and maintenance of non-clogging pumps are provided which increase pump efficiencies through improved impeller design and vacuum assembly design, and which increase seal lubrication efficiencies through improved seal lubricant reservoir system design.

Inventors:
SHAW JAMES G (US)
NORTHRUP JAMES (US)
MILLER MARTIN (US)
Application Number:
PCT/US2011/001269
Publication Date:
April 12, 2012
Filing Date:
July 18, 2011
Export Citation:
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Assignee:
ENVIRO TECH PUMPSYSTEMS INC (US)
SHAW JAMES G (US)
NORTHRUP JAMES (US)
MILLER MARTIN (US)
International Classes:
F01D5/08
Domestic Patent References:
WO2007028935A12007-03-15
Foreign References:
US2907278A1959-10-06
US3741679A1973-06-26
US1910775A1933-05-23
US20090035123A12009-02-05
US20100152482A12010-06-17
GB386432A1933-01-19
US6250889B12001-06-26
Attorney, Agent or Firm:
MORRISS, Julie K. et al. (P.C.734 East 200 Sout, Salt Lake City UT, US)
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