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:
Feb. 12, 1991
Filed:
Nov. 22, 1989
Norbert Aust, Bad Neustadt, DE;
Rudolf Schoening, Bad Neustadt, DE;
Siemens Aktiengesellschaft, Berlin & Munich, DE;
Abstract
A side-channel compressor includes a rotor rotatably supported in the housing of the compressor. The rotor includes a blade ring arranged at the outer circumference of a disk-shaped hub. A clearance space is provided between the housing and the rotor in the region where the rotor hub merges into the blade ring. To prevent the rotor from becoming blocked by dust, lint or fiber-like particles which may settle in the clearance space, at least one recess is formed in the rotor in the region where the hub merges into the blade ring. The recess extends over the entire effective length of the clearance space in the region where the hub merges into the blade ring and effectively expands the boundaries thereof.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile