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. 10, 2014
Filed:
Aug. 03, 2010
Clive Frederick Collie, Elstree, GB;
Alan Ernest Kinnaird Holbrook, Pulborough, GB;
Clive Frederick Collie, Elstree, GB;
Alan Ernest Kinnaird Holbrook, Pulborough, GB;
Edwards Limited, , GB;
Abstract
In some examples, a scroll pumpmay include two scrolls, which are co-operable for pumping fluid from an inlet to an outlet on relative orbiting motion of the scrolls. Each scroll may include a respective scroll base from which a respective scroll wall extends generally axially towards the base of the opposing scroll. At least a first portion of one or each of the respective scroll walls has formed in an axial end face thereof a plurality of pockets distributed along the first portion for disrupting leakage of fluid from a high pressure side of the scroll wall to a low pressure side of the scroll wall.