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. 10, 2016
Filed:
Nov. 13, 2015
Athena Automation Ltd., Vaughan, CA;
Robert D. Schad, Toronto, CA;
Carsten Link, Burlington, CA;
Athena Automation Ltd., Vaughan, CA;
Abstract
A clamp assembly for an injection molding machine includes: (a) a cylinder housing having an inner end and an outer end spaced axially apart from the inner end; (b) a piston assembly comprising a tie bar end portion of a tie bar and a piston head affixed to the tie bar end portion, the piston assembly slidable within the housing between a meshing position and a clamped position spaced axially apart from the meshing position; (c) a clamp chamber between the piston head and the inner end of the cylinder housing for holding pressurized fluid and urging the piston assembly to the clamped position when pressurized; and (d) a spring return device adjacent the outer end of the cylinder housing, the spring return device pushing the piston assembly from the clamped position back to the meshing position when pressure in the clamp chamber is relieved.