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.

Date of Patent:
May. 07, 2024

Filed:

Apr. 09, 2020
Applicant:

Edwards Limited, West Sussex, GB;

Inventors:

Andrew Cobbett, Burgess Hill, GB;

Richard Glyn Horler, Burgess Hill, GB;

Assignee:

Edwards Limited, West Sussex, GB;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F04D 19/04 (2006.01); F04D 29/40 (2006.01); F04D 29/60 (2006.01);
U.S. Cl.
CPC ...
F04D 19/042 (2013.01); F04D 29/40 (2013.01); F04D 29/602 (2013.01);
Abstract

A vacuum chamber module and an apparatus are disclosed. The vacuum chamber module comprises: a pump wall defining a recess shaped to receive a multi-stage vacuum pump; a plurality of vacuum chambers, each vacuum chamber being configured to be pumped by a respective stage of the multi-stage vacuum pump, each vacuum chamber being defined at least partially by a portion of the pump wall, each vacuum chamber having an pumping port located at a different circumferential position on the pump wall for fluid communication with the respective stage of the multi-stage vacuum pump. In this way, a module is provided which shares components, with the multi-stage pump at least partially accommodated within space otherwise occupied by the vacuum chambers and with the vacuum chambers located around the pump wall, which provides for a simpler and more compact arrangement.


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