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. 26, 2005
Filed:
Dec. 13, 2000
Rudolf Küpper, Neunkirchen-Seelscheid, DE;
Heinz-hugo Willach, Lohmar, DE;
Hubert Müller, Ruppichteroth, DE;
Rudolf Küpper, Neunkirchen-Seelscheid, DE;
Heinz-Hugo Willach, Lohmar, DE;
Hubert Müller, Ruppichteroth, DE;
Fischer-W. Muller Blasformtechnik GmbH, Troisdorf, DE;
Abstract
A plastic hollow preform is drawn through a mold passage formed in a closed mold by applying a generally constant suction to a downstream end of a conduit having an upstream end connected to an output end of the mold passage. A flow cross section of the conduit is varied between its upstream and downstream ends so as to vary a rate at which the preform is drawn through the passage by the suction. The flow cross section is varied by displacing a valve element in the conduit between positions in which it differently blocks flow through the conduit.