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:
Mar. 16, 1999
Filed:
Mar. 18, 1996
Hiroshi Kashiwagi, Nagoya, JP;
NGK Insulators, Ltd., , JP;
Abstract
A molding machine for manufacturing a shaped article which is comprised of a polymeric material and formed in a mold cavity between first and second mold halves of a mold assembly. At least one spring-loaded ejector member is provided in the first mold half and serves to eject the shaped article therefrom. The ejector member is movable toward and away from the second mold half and operates when the two mold halves are being opened. At least one resilient member urges the ejector member toward the second mold half. The resilient member exerts a resilient force to the ejector member, which is smaller than a tightening force of the mold halves. A method for manufacturing a shaped article comprised of a polymeric material includes providing at least one ejector member in the first mold half of the molding machine such that as the mold halves are opened, the ejector member urges the insulator away from the first mold half in which the ejector member is disposed. In one embodiment, the insulator is ejected by use of an ejection member having a distal end that is curved, thereby minimizing damage to the composite insulator.