Glue gun nozzle and method of installing carpeting

Coating implements with material supply – Including tool with blade-like – pad-like – or apertured...

Reexamination Certificate

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Details

C401S265000

Reexamination Certificate

active

06196746

ABSTRACT:

FIELD OF THE INVENTION
The invention relates to a novel apparatus and method for applying carpeting to a surface. More specifically, the invention relates to a unique nozzle that may be used in combination with a hot glue gun to improve the quality of the seams created in a carpet installation.
BACKGROUND OF THE INVENTION
In the carpet installation profession, the juncture at which two edges of a carpet roll meet is commonly referred to as a seam. Because a seam receives the tension created in a carpet, the seam is susceptible to unraveling, peaking, and delamination. Thus, in the carpet installation profession, there always is a need to create a seam with improved adhesion strength.
SUMMARY OF THE INVENTION
Accordingly, an object of the present invention is to provide a device which improves seam strength over those currently in use, as well as a novel method by which carpet seams may be created.
In accordance with one aspect of the invention, a hot glue gun having a uniquely configured nozzle is provided. The nozzle is adapted to provide hot glue to the vertical edge of the carpet. To do this efficiently and accurately, the base of the nozzle includes an L-shaped cut-out portion or guide walls which engage the carpet edge. On the vertical leg of the L-shaped or vertical guide wall, an aperture is located through which hot adhesive flows. This allows the adhesive to be applied directly to the vertical edge of the carpet.
Once adhesive is applied to the vertical edge, the ends of the carpet are abutted together. A hot iron and hot melt seaming tape are then used to complete the seam formation process. The application of heat from the hot iron reactivates the previously applied adhesive, thus allowing the adhesive to bond the two edges of carpet. This further strengthens the seam.
Additional objects and advantages of the invention will be apparent from the detailed description of the preferred embodiment, the appended claims and the accompanying drawing may be learned by practice of the invention.


REFERENCES:
patent: 2772432 (1956-12-01), Andreola
patent: 2982987 (1961-05-01), Knapp
patent: 3653560 (1972-04-01), Adams et al.
patent: 4484976 (1984-11-01), Despins
patent: 5250145 (1993-10-01), Despins et al.

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