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. 22, 1998
Filed:
Oct. 06, 1997
Applicant:
Inventors:
Kouichi Matsubayashi, Nagano-ken, JP;
Nobusuke Takahashi, Nagano-ken, JP;
Assignee:
Nissei Plastic Industrial Co., Ltd., Nagano-ken, JP;
Primary Examiner:
Int. Cl.
CPC ...
B29C / ;
U.S. Cl.
CPC ...
429593 ; 4254516 ; 425D / ;
Abstract
A toggle mechanism in a vertical clamping apparatus for an injection mold is supported by spring forces when operated by an electric motor in the vicinity of the mold's closing to counteract the effect of gravity on operation of the mold.