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:
Dec. 04, 2012
Filed:
Nov. 21, 2006
Nigel Paul Schofield, Horsham, GB;
James Alexander Haylock, Eastbourne, GB;
Nigel Paul Schofield, Horsham, GB;
James Alexander Haylock, Eastbourne, GB;
Edwards Limited, Crawley, West Sussex, GB;
Abstract
Scroll-type pumping apparatus comprises a stator () comprising a fixed scroll member () having an end plate with a first spiral wrap () extending therefrom; an orbital scroll member () having an end plate with a second spiral wrap () extending therefrom to intermesh with the first spiral wrap; a plurality of flexible supports () each having one end connected to the orbital scroll member and another end connected to the stator to support the orbital scroll member relative to the stator, and a linear drive system () for driving the orbital scroll member to orbit relative to the fixed scroll member. The use of a linear drive system in combination with the flexible supports can provide apparatus having no rotational or rubbing parts.