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:
Feb. 28, 2006
Filed:
Sep. 16, 2002
John P. Petro, Los Altos, CA (US);
Donald Burch, Los Altos, CA (US);
Jeremy F. Mayer, San Mateo, CA (US);
John P. Petro, Los Altos, CA (US);
Donald Burch, Los Altos, CA (US);
Jeremy F. Mayer, San Mateo, CA (US);
Other;
Abstract
A dual-magnet valve unit having a first master magnet ring assembly with an outer casing slidably contained within an outer housing that forms a chamber with the casing of the master magnet ring assembly and a second, slave magnet disk assembly with an outer tube and a poppet member in the form of a cone and displaceable within the inner transport fluid conduit, the inner transport fluid conduit having a valve seat contactable by the cone of the poppet member to block fluid flow through the fluid conduit in one position of the slave magnet disk assembly and displaceable from the cone to pass fluid flow through the fluid conduit in an opposite position of the slave magnet disk assembly, the master magnet ring assembly being displaced by selective supply of a motive fluid to the chamber to displace the master magnet ring assembly from one position to another, which automatically displaces the slave magnet ring assembly.