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. 05, 2011
Filed:
Oct. 01, 2007
Raimund Stockhammer, Berlin, DE;
Andreas Kömmler, Berlin, DE;
Raimund Stockhammer, Berlin, DE;
Andreas Kömmler, Berlin, DE;
Will Vogel AG, Berlin, DE;
Abstract
The invention relates to a test method and a test device for the determination of an oil separation tendency of lubricating greases under pressure load. In the method, a predetermined test pressure is applied to a test volume () filled with lubricating grease () over a predetermined test period (), the lubricating grease () of the test volume () is contacted with an oil absorption or oil separation element (), and the change of the test volume () is detected on the basis of an absorption or separation of oil () separated from the lubricating grease () by the oil absorption or oil separation element () at the end of the test period (). To be able to estimate the oil separation tendency of lubricating grease more exactly, in the method according to the invention, the time history of the change of the test volume () representative of the oil separation is detected over the test period ().