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. 11, 2001
Filed:
Oct. 04, 1999
Van K. Joyner, West Chester, OH (US);
Ronald A. Hertzer, Cincinnati, OH (US);
Frederick F. Van Keuren, III, Cincinnati, OH (US);
Uniloy Milacron USA Inc., Manchester, MI (US);
Abstract
A self-compensating support skate (,) for an annular hydraulic ram (,) mounted in the front stationary platen (,) of a “two-platen” injection molding machine (,) is disclosed. The hydraulic ram (,) fits into a central bore (,) in the stationary platen (,) and connects directly to a relatively thin die platen (,) that provides a mold mounting surface. The purpose of the skate (,) is to prevent movement (tilting) of the die platen (,) and the resulting misalignment with the movable platen (,) when the mold (,) is attached. The skate (,) is adjusted during assembly to compensate for the tolerance stack-up in the ram assembly. The “zero” clearance is maintained by disc springs (,) within the skate (,) that compensate for the expansions and contractions of the large diameter parts due to temperature variations. The die platen (,) is held in the aligned position by contact with the lower tie rods (,).