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:
May. 31, 2016
Filed:
Apr. 09, 2010
Miles Geoffery Hockliffe, Lewes, GB;
Ian David Stones, Burgess Hill, GB;
Alan Ernest Kinnaird Holbrook, Pulborough, GB;
Miles Geoffery Hockliffe, Lewes, GB;
Ian David Stones, Burgess Hill, GB;
Alan Ernest Kinnaird Holbrook, Pulborough, GB;
Edwards Limited, Crawley, GB;
Abstract
The present invention relates to a scroll pump () comprising two scrolls () which are co-operable for pumping fluid from an inlet () to an outlet () on relative orbiting motion of the scrolls. Each scroll comprises a scroll base () from which a spiral scroll wall () extends generally axially towards the base of the opposing scroll. The pump comprises a tip seal arrangement comprising an axial end portion of one or both of the scroll walls which locates a tip seal () for resisting the passage of pumped fluid across the or both scroll walls between the or both scroll walls and the scroll base of the opposing scroll. The tip seal arrangement limits axial movement of the tip seal towards the scroll base of the opposing scroll along a first spiral region () of the or both scrolls between the inlet and the outlet.