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:
Oct. 16, 2012
Filed:
Oct. 10, 2007
Perry Y. LI, Plymouth, MN (US);
Thomas R. Chase, Minneapolis, MN (US);
Perry Y. Li, Plymouth, MN (US);
Thomas R. Chase, Minneapolis, MN (US);
Regents of the University of Minnesota, Minneapolis, MN (US);
Abstract
A pulse width modulated fluidic valveincludes a cylinder () having an elongate bore, a length, and first () and second () ports which extend from outside the cylinder () into the bore. A rotatable spool () is carried in the bore and movable in a direction of the length of cylinder (). The spool () has a variable blocking feature () which blocks passage of fluid' between the first () and second () ports as a function of angular position relative to the first () and second () ports and as a function of linear position along the length of the cylinder ().