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. 09, 2006
Filed:
Oct. 31, 2002
Donald W. Hayward, Waterville, OH (US);
David A. Bogstad, Perrysburg, OH (US);
Donald Wayne Miller, Waterville, OH (US);
Donald W. Hayward, Waterville, OH (US);
David A. Bogstad, Perrysburg, OH (US);
Donald Wayne Miller, Waterville, OH (US);
Plastic Technologies, Inc., Holland, OH (US);
Abstract
A method and an apparatus for monitoring the production of blow molded plastic containers () includes a columnator () and sound detector () responsive to a defect sound of pressure fluid escaping from a container being formed in a mold cavity (). The columnator is effective to filter the defect sound from ambient noise. An output signal generated by the sound detector is processed to generate a control signal used to reject a defective container. Preferably, the open end of the columnator is positioned between 20° and 150° from the preform loading station in a rotary platform () blow molding machine.