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. 13, 2007
Filed:
Jul. 04, 2003
Ian David Stones, Burgess Hill, GB;
Ingo Graham, Hove, GB;
Ian David Stones, Burgess Hill, GB;
Ingo Graham, Hove, GB;
The BOC Group plc, Windlesham, GB;
Abstract
A regenerative fluid pump () comprises a rotor having rotor blades for compressing fluid on two fluid flow paths, the first of which extends between a first pump inlet () and a first pump outlet (), and a second of which extends between second pump inlet () and a second pump outlet (). The pump comprises a stator comprising a plurality of concentric channels (), each of which comprises: a pumping channel portion () along which said rotor blades move for compressing said fluid between an inlet and an outlet of the pumping channel; and a stripper channel portion () (shown in broken lines) which allows movement of said rotor blades from said outlet to said inlet of the pumping channel portion. Each concentric channel () comprises two pumping channel portions () and two stripper channel portions ().