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:
Jul. 05, 1983
Filed:
Nov. 16, 1981
Walter J Rozmus, Traverse City, MI (US);
Kelsey-Hayes Company, Romulus, MI (US);
Abstract
A method of trapping lubricant in a vacuum system and an assembly for performing same wherein a vacuum chamber has an outlet duct to a vacuum source to establish a gas flow path from the vacuum chamber to the vacuum source. Lubricant vapors from the vacuum source such as a vacuum pump are prevented from entering the vacuum chamber in accordance with the instant invention by establishing an electric field and subjecting the lubricant entering the vacuum outlet duct from the vacuum source to the electric field to electrically charge the lubricant and electrically attract the lubricant back toward the vacuum source. A magnetic field is also established between the electrodes to further urge the charged lubricant back toward the vacuum source. In this manner the lubricant is prevented or substantially prevented from entering and contaminating the vacuum chamber.