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. 26, 1991
Filed:
Jun. 15, 1990
Jesus M Osuna-Diaz, Rochester Hills, MI (US);
Other;
Abstract
Injection molding apparatus is disclosed having an actuation system for operation of a shut off valve pin, movably mounted in a valve gate, the system including a first gear rack connected to the valve pin, a first pinion gear driven by the first gear rack connected at one end of a cross shaft, a second pinion gear at the other end of the cross shaft, and a externally mounted two way power cylinder operating a second gear rack to rotate the second pinion gear in mesh therewith so that both pinion gears rotate together, and the valve pin is reciprocated by operation of the power cylinder. The power cylinder is mounted for angular adjustment about the axis of rotation of the pinion gears and cross shaft to enable ready adjustment of the closing position of the valve pin in the valve gate.