Heat nozzle for welding floor seams

Electric resistance heating devices – Heating devices – Concentrated heated air stream

Reexamination Certificate

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Details

C392S382000, C156S575000

Reexamination Certificate

active

06871013

ABSTRACT:
A portable, handheld seam welding gun for filling in seams between sheets of linoleum flooring is provided with a unique heat nozzle. The heat nozzle of the invention couples the heating barrel of a conventional floor seam welding gun to a conventional hollow welding tip by receiving the heating air inlet tube of the tip within the confines of a downstream socket formed in the body of the heat nozzle. A larger, upstream socket formed in the body of the heat nozzle fits onto the heating barrel of the handheld, portable welding gun. A plurality of preheating jets are formed on the underside of the body of the heat nozzle to preheat the region of the channel immediately to the rear of the welding tip just before molten sealant flows into that portion of the channel.

REFERENCES:
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patent: 2862543 (1958-12-01), Kaminsky
patent: RE24801 (1960-03-01), Kaminsky
patent: 3126306 (1964-03-01), Sherman
patent: 3853669 (1974-12-01), Werstlein
patent: 4259142 (1981-03-01), Kortepeter
patent: 4642158 (1987-02-01), Steinel et al.
patent: 5656126 (1997-08-01), Martinez
patent: 6149762 (2000-11-01), Kobzan
patent: 1 898 146 (1964-08-01), None
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patent: G 94 09 920.0 (1994-09-01), None
patent: 297 13 474 U 1 (1997-11-01), None
patent: 818066 (1959-08-01), None
patent: 1 262 422 (1972-02-01), None
Martinez Enterprises Turbo Heat Welding Tools Catalog; Oct., 1995, pp. 1 & 2.
Sinclair Equipment Co. Catalog; Apr. 2000, p. 4 “Automatic Welders” and p. 5 “Hand Welders”.
Sinclair Equipment Co. Promotional Flyer, “Turbo Welding System”, circa Apr. 2000.
Columbine International Promotional Flyer, The Turbo Roller Guide, circa 2000.
Janser Catalog No. 103, pp. 36 thru 40, circa 2000.
Leo Martinez Ent. Promotional Flyer; Turbo Welding System: Dec. 2001 (approx).
Drawings and Brochure for Zinser Super Rapid Nozzle dated Jun. 1995.

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