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. 08, 1999
Filed:
Sep. 16, 1997
David C Oas, Vandalia, OH (US);
Jeffrey L Patrick, Huber Heights, OH (US);
Electra Form, Inc., Vandalia, OH (US);
Abstract
A blow molding apparatus configured to receive plastic parisons and output blow molded containers including a support frame and a parison conveyor attached to the support frame and having a plurality of parison supports and a drive mechanism for driving the parison supports in a stepped movement circuit, advancing the parison supports by a curvilinear distance corresponding to a curvilinear spacing between a preselected number of parison supports. A first parison transfer assembly is adapted to receive the preselected number of the parisons from the parison supports. A second parison transfer assembly is adapted to receive the preselected number of the parisons from the first parison transfer assembly for transfer to a predetermined number blow mold stations during each stepped movement, and includes the predetermined number of second conveyors having a plurality of second parison supports and adapted for a second stepped movement to advance by a second curvilinear distance corresponding to a second curvilinear spacing between a chosen number of the second parison supports, the chosen number equal to the quotient of the preselected number and the predetermined number. An element for heating the parisons, a parison unloader for disgorging the blow molded containers, and a parison unloader are provided. A method of loading a preselected number of parisons onto a parison conveyor driven in a stepped movement, and transferring the preselected number of parisons to a predetermined number of blow mold stations using first and second parison transfer assemblies.