Invention Grant
- Patent Title: Hydraulic valve with a filter and check valve band
- Patent Title (中): 带过滤器和止回阀带的液压阀
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Application No.: US12410832Application Date: 2009-03-25
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Publication No.: US08127790B2Publication Date: 2012-03-06
- Inventor: Curtis L. Van Weelden , Edward A. Flynn
- Applicant: Curtis L. Van Weelden , Edward A. Flynn
- Applicant Address: US WI Waukesha
- Assignee: HUSCO Automotive Holdings LLC
- Current Assignee: HUSCO Automotive Holdings LLC
- Current Assignee Address: US WI Waukesha
- Agency: Quarles & Brady LLP
- Agent George E. Haas
- Main IPC: E03B7/07
- IPC: E03B7/07 ; F15B13/044

Abstract:
An hydraulic valve has a body with an exterior surface, a longitudinal bore, and first and second fluid ports in communication with the bore wherein the first fluid port opens through the exterior surface. A band is wrapped in first and second layers around the exterior surface which layers extend over the opening of the first fluid port. The first layer has a plurality of apertures there through and overlaying the opening to provide a filter. The second layer has a flap that flexes in response to pressure to open and close the plurality of apertures thereby acting as a check valve. An actuator slides a spool within the bore thereby selectively connecting and disconnecting the first and second fluid ports.
Public/Granted literature
- US20100243085A1 HYDRAULIC VALVE WITH A FILTER AND CHECK VALVE BAND Public/Granted day:2010-09-30
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