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:
Dec. 09, 1997
Filed:
Oct. 16, 1995
William E Medcalf, Jr, Evanston, IL (US);
Applied Kinetics Corporation, Evanston, IL (US);
Abstract
A park mechanism for an automotive transmission having an output shaft comprises a rotatable lock ring structure connected to the output shaft, a non-rotatable lock ring structure positioned in proximity to the rotatable lock ring structure, and a pressure mechanism (preferably, including a spring-biased piston within a pressure chamber) responsive to application of pressure thereto for moving the non-rotatable lock ring structure to a disengaged position for non-engagement with the rotatable lock ring structure, and responsive to the release of pressure therefrom for moving the non-rotatable lock ring structure to an engaged position for engagement with the rotatable lock ring structure. Preferably, the rotatable lock ring structure is provided with at least one receptacle or tooth, and the non-rotatable lock ring structure is provided with at least one tooth receivable in the receptacle or tooth.