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:
May. 29, 2001
Filed:
Feb. 26, 1999
Ealias C Joseph, Markham, CA;
Unique Mould Makers Limited, Toronto, CA;
Abstract
An apparatus and method for ejecting threaded injection molded articles from a mold core by simultaneous application of rotational and translational force. The apparatus has a stripper ring which is rotatable about and movable along its axis. A driver rotates a stripper ring rotator in response to input from a machine ejector rod. Input from the machine ejector rod is transferred to the driver by a helically splined spindle which is axially movable relative to the driver and which engages a corresponding helically splined bore in the stripper ring rotator. Rotation of the stripper ring rotator is transferred to the stripper ring by meshing pinions. The stripper ring rotator also has a gear which meshes with corresponding teeth in a transversely extending rack to cause movement of the rack. Cams are secured to the rack and act against cam followers connected to the stripper ring to translate transverse movement of the rack into axial movement of the stripper ring.