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. 24, 2007
Filed:
Apr. 04, 2002
Jun Yoshioka, Fort Wayne, IN (US);
Jun Yoshioka, Fort Wayne, IN (US);
Torque-Traction Technologies, LLC., Maumee, OH (US);
Abstract
A pressure switch or valve for a hydraulic circuit that responds primarily to fluid flow as opposed to relying strictly on a pressure gradient across the valve. A T-shaped valve has a stem portion disposed within an opening in a reservoir or other fluid passage. The valve is spring biased in an open position. A valve head has an area significantly larger than an area of the opening. As fluid flows around the edge of the valve head, the fluid speed increases and induces a pressure gradient across the valve head to overcome the spring bias and close the valve. The valve may be employed in a wall surface of the reservoir or fluid passage having an area significantly larger than the valve head.