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:
Aug. 13, 1991
Filed:
Sep. 21, 1990
Lewis A Frostick, Peck, MI (US);
Saturn Corporation, Troy, MI (US);
Abstract
An apparatus for depositing a viscous valve opener material within an engine oil filter is disclosed herein. The engine oil filter includes an anti-drain back valve that is normally closed on a seat, the seat having inlets therethrough for oil passage into the filter. The apparatus for depositing the temporary viscous valve opener material includes a base and a plurality of injectors extending from the base arranged so as to be insertable into the inlets of the oil filter, the injectors being dimensioned to lift the valve of its seat thereby forming a space between the valve and seat. The injectors include openings facing opposite the space between the valve and seat for depositing the temporary viscous valve opener material into the space.