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:
Feb. 21, 1978
Filed:
May. 12, 1976
Applicant:
Inventor:
Tyler Keith Olcott, Valentines, VA (US);
Assignee:
W. R. Grace & Co., Duncan, SC (US);
Primary Examiner:
Int. Cl.
CPC ...
B29C / ;
U.S. Cl.
CPC ...
264 89 ; 264 98 ; 264326 ; 425530 ;
Abstract
A tire shaped article is blow molded by extruding a tubular parison between movable mold sections, sealing the open end of the parison, injecting air into the parison, moving a lower mold section and the bottom portion of the parison upwardly and expanding an intermediate portion of the parison radially outwardly into a mold cavity.