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:
Oct. 02, 1979
Filed:
May. 04, 1977
David Luria, Tel Aviv, IL;
Panel Laboratories Ltd., Ramat Aviv, IL;
Abstract
A method and apparatus are described for diagnosing the condition of oil-wetted parts subject to wear, wherein a specimen of the used oil from the part is extracted, and a plurality of samples are separated according to the different mobility rates of its particles through a liquid medium during the centrifuging of the specimen through the liquid medium for a predetermined period of time. The samples are then analyzed to determine their compositions, thereby providing an indication of the identities of the wearing parts and their rates-of-wear. In one described embodiment, the specimen is centrifuged for a sufficiently long predetermined time to stratify the particles according to size and density; and in a second described embodiment, the specimen is centrifuged for a plurality of short predetermined time periods during each of which a sample of the particles passing the complete length of the liquid medium is removed and analyzed. In both embodiments, the samples are separated by passing them through a large mesh screen at the bottom end of the holder in which the centrifuging is effected.