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:
Jan. 09, 2007
Filed:
Aug. 17, 2004
Jean-luc Rival, Villaz, FR;
Jean-Luc Rival, Villaz, FR;
Alcatel, Paris, FR;
Abstract
A vacuum pump of the invention comprises, in a common pump body (): molecular drag pump stages () in series with regenerative pump stages (). The molecular drag pump stages () comprise a molecular drag rotor () including a blind axial cavity () open towards the downstream end, and the motor () is housed at least in part in said blind axial cavity (). The drive shaft () is coupled via its upstream end () to the molecular drag rotor (), and it is coupled via its downstream portion () to the regenerative rotor (). The motor () is secured to the central segment of the drive shaft (). This provides a universal pump of small size, enabling pumping to be performed from 1000 mbar down to 10mbar, and suitable for being placed in the vicinity of a vacuum chamber.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile