Title:
PUMPS AND PUMP-HEADS WITH SEPARATELY REMOVABLE FIELD-SERVICEABLE PORTION
Document Type and Number:
WIPO Patent Application WO/2012/071440
Kind Code:
A3
Abstract:
An exemplary pump-head includes a pump housing having discrete first and second housing portions attached together to form pump-cavity and a magnet-cavity. The pump-cavity contains at least one movable pumping element, and the magnet-cavity contains a driven magnet coupled to the movable pumping element. Exposure of the driven magnet to a magnetic field moving outside the pump housing correspondingly moves the driven magnet, which moves the pumping element in the pump-cavity to pump liquid through the pump-cavity. The second housing portion has inlet and outlet ports in hydraulic communication with the pump-cavity and defines at least a portion of the magnet-cavity and at least a portion of the pump-cavity. The first housing portion is detachable from the second housing portion to open the pump-cavity and allow the at least one pumping element to be carried away with the detached first housing portion, thereby providing access to the at least one pumping element without disturbing the second housing portion.
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Inventors:
GRIMES DAVID J (US)
Application Number:
PCT/US2011/061901
Publication Date:
June 13, 2013
Filing Date:
November 22, 2011
Export Citation:
Assignee:
GRIMES DAVID J (US)
MICROPUMP INC (US)
MICROPUMP INC (US)
International Classes:
F04C2/10; F04B17/00
Domestic Patent References:
| WO1997020143A1 | 1997-06-05 |
Foreign References:
| EP2078859A2 | 2009-07-15 | |||
| US3240158A | 1966-03-15 | |||
| US3238883A | 1966-03-08 | |||
| DE102007054544A1 | 2008-06-05 | |||
| DE202010011626U1 | 2010-10-21 | |||
| DE102008034176A1 | 2010-01-28 | |||
| US20040253119A1 | 2004-12-16 |
Attorney, Agent or Firm:
STEPHEN, Donald, L. (LLPOne World Trade Center, Suite 1600,121 SW Salmon Stree, Portland OR, US)
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