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:
May. 24, 1977
Filed:
Feb. 13, 1976
Donald L Peters, Bartlesville, OK (US);
Phillips Petroleum Company, Bartlesville, OK (US);
Abstract
An apparatus for blow molding hollow articles from a heated parison of plastic with the apparatus including a blow mold having mold halves which are relatively movable and receive the parison therebetween. A mandrel is provided which is comprised of two halves each of which is carried by a respective mold half with the mandrel being movable between an extended position and a retracted position. A free end of each of the mandrel halves is adapted to engage a portion of the parison to hold same between the two mandrel halves thereby providing rigidity and support for puncturing of the parison by a blow needle which is reciprocably carried by one of the mandrel halves and is movable between an extended position and a retracted position.