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:
Apr. 03, 2001
Filed:
Apr. 28, 1998
Pierre Mailliet, late of Redange, LU;
Abstract
A closing unit for an injection moulding machine has a movable closing die and a fixed matching die designed as clamping dies for an injection mould, as well as several hydraulic cylinders mounted on the fixed matching die to apply a closing force. A servo-drive allows the drawbars to swivel around their longitudinal axes up to a first and second angular position. A first locking device arranged on the drawbars along a first section A of the drawbars co-operates with second locking device arranged on the movable closing die. In the first angular position of the drawbars, the locking devices allow the movable closing die to move axially with respect to the drawbars, and in a second angular position of the drawbars they transmit the required closing force.