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:
Jun. 03, 2003
Filed:
Apr. 06, 2001
Andrew Walter McRae Thomson, Avening, GB;
Peter David Gammack, Bath, GB;
Robert Brian Seaman, Bath, GB;
Dyson Limited, Malmesbury, GB;
Abstract
A changeover valve comprises a first valve member and a second valve member. The first value member has an aperture. The second valve member has first and second apertures. The first valve member is movable relative to the second valve member for selective alignment of the first value member aperture with one or other of the apertures of the second valve member. The value also has a ramp and follower means for automatically moving the valve member away from the one another during changeover movement of the first valve member relative to the second valve member so that wear on the surfaces of the valve members is minimized.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile