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:
Apr. 14, 2026
Filed:
Aug. 30, 2023
Edwards Limited, Burgess Hill, GB;
Robin Hockley, Burgess Hill, GB;
Alan Ernest Kinnaird Holbrook, Burgess Hill, GB;
Edwards Limited, Burgess Hill, GB;
Abstract
A shell stator () for a vacuum pump, the shell stator () comprising: a seal groove () formed in a surface of the shell stator (), the seal groove () being defined by a first side wall (), a second side wall () opposite to the first side wall (), and a bottom surface () disposed between the first side wall () and the second side wall (), the bottom surface () being opposite to an opening of the seal groove (); wherein the seal groove () comprises: a protrusion () formed in the first side wall () and extending towards the second side wall (); and an indentation () formed in the second side wall () opposite to the protrusion ().
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile