Universal floor seam sealer

A device for dispensing melted glue into seams between adjacent sheets of flooring comprising:

• a portable handheld heat gun having a body with front and rear ends aligned along a longitudinal axis, and
• a hollow glue heating nozzle mounted on said front end of said heat gun and defining a hollow, laterally enclosing casing that terminates in a transverse front end wall formed with two rows of forwardly directed air jet ports with at least 8 air jet ports in each row and said rows reside on opposite sides of and are parallel to said longitudinal axis, and said nozzle further comprises a downwardly directed elongated, hollow fin that narrows from said casing and terminates in a narrow, downwardly facing floor wall at least 2.5 inches in length and said floor wall is perforated by a line of at least about 20 downwardly directed air discharge apertures therethrough,
• an upper forwardly projecting flange extending from said casing above said front end wall and a lower forwardly projecting flange extending from said casing below said front end wall, and said flanges have guide loops defined therein to receive a glue stick and guide said glue stick past said front end wall in close proximity to and forwardly from said forwardly directed air jet ports with progressive movement of said glue stick from said upper flange toward said lower flange, and
• a carriage supporting said heat gun from beneath at a fixed, inclined orientation relative to said sheets of flooring and holding said downwardly facing floor wall at an angle of between about 1° and 5° relative to and sloping upwardly and rearwardly from said lower flange, and said carriage includes a seam follower that depends into said seams between said adjacent sheets of flooring, and a pair of rollers laterally spaced from each other on opposite sides of said seam follower for residing in rolling contact with said sheets of flooring, whereby said carriage holds said heat gun such that said longitudinal axis of said heat gun resides directly above said seam follower.

A device for heat welding seams between adjacent sheets of flooring comprising:

• an elongated, portable, handheld heat welding gun having front and rear ends oriented along a longitudinal axis of alignment and,
• a hollow, elongated heat welding nozzle mounted on said front end of said heat welding gun and including a tubular shaped cavity enclosing shell with front and rear ends and a hollow fin projecting downwardly from said shell and narrowing to form a linear floor beam defining therethrough at least 20 air jet apertures and said the floor beam is at least about 2.5 inches in length, and said rear end of said tubular shell is mounted on said front end of said heat welding gun, and said front end of said tubular shell is closed by a front end wall having at least two parallel rows of forwardly facing air jet apertures defined therethrough, one row lying on either side of said longitudinal axis, each row having at least 8 of said forwardly facing air jet apertures, said heat welding nozzle further comprising a pair of forwardly projecting glue stick guide flanges, including an upper flange located above said rows of forwardly facing air jet apertures, and a lower flange located below said rows of forwardly facing air jet apertures, wherein each of said flanges has a glue stick receiving loop defined therein to guide a glue stick therethrough toward said flooring seams so that said glue stick passes in close proximity to and in spaced separation forwardly from said forwardly facing air jet apertures, and
• a carriage supporting said heat welding gun from beneath in a fixed inclined orientation relative to said the lower flange and holding said downwardly facing floor beam at an angle of between about 1° and 5° relative to said lower flange, and said carriage includes a pair of rollers for contacting said sheets of flooring laterally separated and equidistant from said longitudinal axis of alignment on opposing sides thereof, and a seam follower held by said carriage centered between said rollers and so that said seam follower rides in said seams and said carriage holds said heat gun such that said longitudinal axis is located directly vertically above said seam follower.