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:
Jan. 09, 2001
Filed:
May. 06, 1999
Douglas S. Struble, Maumee, OH (US);
Owens-Brockway Plastic Products Inc., Toledo, OH (US);
Abstract
Wheel molding apparatus for molding thermoplastic containers or other articles, the apparatus having a multiplicity of sets (,) of opposed, separable radially aligned mold halves (,) that travel in a circular path about a horizontal axis. The inner of the mold halves (14) is separated from the outer of the mold halves (,) at the 12:00 o'clock position of the mold set that includes such mold halves to permit the molded article to be ejected from the mold set. However, the ejection of the molded article should not take place until after the separation of the mold halves, and this requires that the molded article be positively retained within the outer mold half until it is desired to eject the article therefrom. This is accomplished by translation of a translatable pin (,) within a passage (,) of the outer mold half, the translatable pin having an undercut (,) near an end thereof that extends into the article, and preferably into a portion of excess material thereof, and forms an interference fit with the article at an outermost position of the translatable pin, to which the pin is resiliently biased by a spring (,). Ejection of the article is obtained by engaging an exterior free end of the pin by a cam (,) to move the pin against the biasing effect of the spring to a second position at which there will be no interfering relationship between the pin and the article and the pin will then positively eject the article from the outer mold half.