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:
Nov. 25, 2003
Filed:
Jan. 11, 2002
Mark William Ellens, Vancouver, CA;
Jan Kuyper, Gibsons, CA;
Neal Wesley Denis Wood, Burnaby, CA;
Steven Michael Winiski, Vancouver, CA;
Randall Theodore Mark, Vancouver, CA;
Teleflex Canada Limited Partnership, Richmond, CA;
Abstract
A valve includes a housing with an elongated bore having a longitudinal axis and a spool reciprocatingly mounted within the bore for relative movement along the bore parallel to the axis. The housing has a housing passageway and the spool has a spool passageway. The passageways align in at least one axial position of the spool along the bore, whereby fluids can pass between the spool and the housing. The passageway of one of the spool or the housing includes a first groove which extends parallel to the axis, but not substantially about said one of the spool or the housing. The passageway of another of the spool or the housing includes a second groove which extends circumferentially about said another of the spool or the housing.