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:
Jun. 15, 2004
Filed:
Jun. 13, 2002
Applicant:
Inventors:
Richard Nightingale, Woodstock, IL (US);
Jeffrey Janssen, Belvidere, IL (US);
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C 4/904 ; B29C 4/936 ; B29C 4/956 ;
U.S. Cl.
CPC ...
B29C 4/904 ; B29C 4/936 ; B29C 4/956 ;
Abstract
A blow molding apparatus having a mold clamping apparatus of the clam shell type, and having a linkage controlling the opening and closing of the mold, the linkage being comprised of two links pivotally connected to each other and driven by a pneumatic or hydraulic cylinder. The links are configured to provide the cylinder with mechanical advantage so that little mold separation force is recognized at the cylinder.