Handheld extruder welding device

Details Handheld extruder welding device Handheld extruder welding device

2007-11-27

2007-11-27

Gupta, Yogendra N. (Department: 1722)

Dispensing

With discharge assistant

Rotary

C222S572000, C222S324000

Reexamination Certificate

active

11219220

ABSTRACT:
A handheld extruder welding device is provided for welding thermoplastic synthetic materials by means of an extrusion screw with a feed zone and a conveying/plasticizing zone. In the area of the feed zone, a feed channel with a ridge running in longitudinal direction is located in a sleeve. This ridge prevents the inserted plastic welding wire from twisting and looping inside and especially outside the handheld extruder welding device.

REFERENCES:
patent: 5153008 (1992-10-01), Koch
patent: 5988865 (1999-11-01), Bacher et al.
patent: 6223950 (2001-05-01), Lasko
patent: 6431409 (2002-08-01), Gehde
patent: 196 39 048 (1998-03-01), None
patent: 0 887 116 (1998-12-01), None
patent: 1 023 948 (2000-08-01), None
patent: 59 067030 (1984-04-01), None
European Search Report for corresponding Application No. 04021264.9 dated Feb. 23, 2005.

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