The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 19, 2005
Filed:
Sep. 25, 2002
Applicants:
Joseph L. Pfaff, Wauwatosa, WI (US);
Keith A. Tabor, Richfield, WI (US);
Inventors:
Joseph L. Pfaff, Wauwatosa, WI (US);
Keith A. Tabor, Richfield, WI (US);
Assignee:
HUSCO International, Inc., Waukeska, WI (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F15B013/04 ; F16D031/02 ;
U.S. Cl.
CPC ...
Abstract
The flow of fluid to a hydraulic actuator is controlled by a valve assembly which operates in different metering modes at various points in time. The metering mode to use in selected in response to the hydraulic load that acts on the valve associated with the hydraulic actuator. Specifically the load is determined and then compared to threshold levels associated with the different metering modes to choose the metering mode for use a given point in time.