Patent ID: 6554947
Filing Date: 2003-04-29
Classification: B29C,B29L,E04D,Y10T

Abstract:
A method for attaching thermoplastic strips to thermoplastic roof membranes, the method comprising the steps of:providing strips of thermoplastic material, the strips each comprising an upstanding central portion extending lengthwise thereof, and opposed flange portions extending widthwise from the central portion; positioning the strip proximate a selected position on a roof membrane for attachment to the roof membrane; providing a self-propelled apparatus having a guide member mounted thereon, a nozzle mounted thereon for directing heated air between the strip and the roof membrane, a wheel mounted thereon for pressing the strip onto the roof membrane, and a tracking member mounted thereon forwardly of the nozzle, the tracking member comprising a rotatable disc; directing the apparatus along a line delineating the selected position on the roof membrane by rolling the tracking member disc forwardly of the nozzle along the line, and moving the guide member over the strip to cause the strip to enter the apparatus adjacent the line to position the strip adjacent the line; and heating the strip with the nozzle, and pressing the strip onto the roof membrane with the pressing wheel; whereby to attach the strip to the roof membrane adjacent the line.