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:
Nov. 07, 2000
Filed:
Jun. 23, 1999
Valentin Botosan, Rochester, MI (US);
Berthold Martin, Shelby Township, MI (US);
DaimlerChrysler Corporation, Auburn Hills, MI (US);
Abstract
A check valve which fits within a multi-diametered shouldered cavity formed within a pump valve body of a transmission. The check valve assembly has a movable valve element with a head to seal an annular aperture in a separator plate of the transmission. The valve element further has a stem axially extending into the cavity. The stem has an enlarged annular end. A base retainer has a spline formation in a central opening which allows the enlarged annular end of the stem to be inserted therein. After relative rotation between the base retainer and the stem of the valve element, the valve element is captured to the base retainer. A spring is captured between the stem of the valve element and the base retainer to bias the head of the valve element against the aperture provided in the transmission separator plate.