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:
Sep. 11, 2007
Filed:
Nov. 12, 2003
Manfred A. Lupke, Thornhill, Ontario, CA;
Stefan A. Lupke, Thornhill, Ontario, CA;
Manfred A. Lupke, Thornhill, Ontario, CA;
Stefan A. Lupke, Thornhill, Ontario, CA;
Other;
Abstract
An extruding apparatus which extrudes continuous length of hollow plastic product has an extruder () which feeds molten plastic through die equipment () to a mold tunnel () formed by side by side moving mold blocks (). The apparatus includes air turbulence internally of the product within the mold tunnel to assist in setting shape of the product. The air turbulence is provided by an air moving member () located internally of the product within the mold tunnel and a power source for the air moving member. The power source is located externally of the mold tunnel and a power transfer is provided to feed power from the power source through the die equipment to the air moving member without cooling of the die equipment.