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:
Aug. 26, 2008
Filed:
Sep. 02, 2005
Guiseppe DE Miceli, Menziken, DE;
Hans Arnold, Kägiswil, CH;
Guiseppe De Miceli, Menziken, DE;
Hans Arnold, Kägiswil, CH;
Leister Process Technologies, Sarnen, CH;
Abstract
Handheld extruder welding device for welding thermoplastic synthetic materials, including an extrusion screw with an attachment shaft and a device for the axial attachment of the extrusion screw with the attachment shaft to a gear-equipped drive system; where a one-piece gear housing for holding the gear is equipped with a front-side bearing flange for accepting the extrusion screw; where an output shaft arranged in the bearing flange has an output gear attached to it at the cup-side end and has an opening for inserting the attachment shaft; where a two-part annular clamping flange for clamping the extrusion screw in the bearing flange is provided; and where the clamping flange can be placed on the bearing flange from outside and can be clamped. In addition, the clamping flange may contain at least one feed channel for the welding wire. This design offers a compact, stable, and short gear output where the extrusion screw can be exchanged easily.