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:
Mar. 06, 1990
Filed:
Dec. 08, 1988
Brett Barnhart, Franklin, IN (US);
Al Slachter, Columbus, IN (US);
Cummins Engine Company, Inc., Columbus, IN (US);
Abstract
A valve stroke adjustment locking mechanism comprising a valve seat having an axially extending bore therethrough and a seating surface. A valve operator is provided having an elongated member which is extended through the axial bore and is reciprocatable between a first open position and a second closed position. The elongated member includes a threaded end portion which extends from the valve seat for accommodating a valve assembly which is provided with a top portion forming a sealing face and a bottom portion having a central opening adapted to receive the threaded end portion of the elongated member. A closed end nut threadingly engages the threaded end portion of the elongated member and contacts the valve assembly for positioning the sealing surface a predetermined spacing from the seating surface. A transverse hole is then electromechanically discharge machined transversely through the closed end nut and the threaded end portion of said piston member and a pressure fit pin is forced into the hole to rigidly fix the closed end nut relative to the elongated member in order to maintain the predetermined spacing without forming any paths of leakage.