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:
Mar. 29, 2011
Filed:
Aug. 17, 2005
Stuart Charles Coles, Peasemore, GB;
Michael Andrew Galtry, Worthing, GB;
David Alan Turrell, Burgess Hill, GB;
Patrick Brian Clayton, Worthing, GB;
Stuart Charles Coles, Peasemore, GB;
Michael Andrew Galtry, Worthing, GB;
David Alan Turrell, Burgess Hill, GB;
Patrick Brian Clayton, Worthing, GB;
Edwards Limited, Crawley, West Sussex, GB;
Abstract
A system for evacuating an enclosure is provided. The system includes a first vacuum pump having an inlet selectively connectable to an outlet from the enclosure. A second vacuum pump is also provided together with a conduit for connecting an exhaust of the first vacuum pump to an inlet of the second vacuum pump. An auxiliary chamber is provided, this chamber being selectively connectable to the conduit such that, in a first state, gas can be drawn from the auxiliary chamber by the second vacuum pump in isolation from the enclosure, and, in a second state, gas can be drawn from the enclosure to the auxiliary chamber through the first vacuum pump.