Apparatus for applying tape material in continuously advancing sheet material
AssigneeJohns Manville
InventorsRomain E. Loeffler, Calvin P. Sorensen, Larry J. Weinstein
Life of this patent
Estimating the term…
Abstract
A web of jacketing material is unwound from a reservoir thereof and conveyed at constant speed. A double sided, pressure-sensitive adhesive strip, having one side protected by a removable sheet covering, conveyed in a direction normal to that of the jacketing material, is cut to predetermined lengths, positioned subjacent to and then applied across the width of the jacketing material at predetermined intervals. The jacketing material is sheared into sections by making cuts across the material along the middle of the adhesive strip and at a line midway between adhesive strips.
Claims22
Apparatus comprising:
- means for supplying a sheet material,
- means for continuously advancing said sheet material at a constant speed in a predetermined direction,
- means for supplying a double sided pressure sensitive adhesive material having one side uncovered and the other side covered by a removable strip of material,
- means for holding said adhesive material in a stationary position with the longitudinal axis of said adhesive material extending in a direction normal to the direction of movement of said sheet material, said one side facing said sheet material,
- a transversely extending resilient pad spaced opposite said holding means, said pad being mounted for relatively rapid movements defined by a first movement towards the stationarily held adhesive material to make pressure-transmitting slidable contact with a surface of said sheet material and a second movement away from said adhesive material to disengage from said sheet material surface, and
- a transversely extending bar mounted to move with said resilient pad such that during said second movement said bar slidably engages a surface of said sheet material to move said sheet material away from said holding means.
Apparatus for adhering to sections of a first sheet material a length of a second sheet material, said apparatus comprising:
- means for constantly advancing a continuous length of first sheet material in a first direction,
- means for periodically advancing a continuous length of a second sheet material transverse to said first direction and proximate to said first sheet material, said second sheet material having a first and second adhesive surface, said first adhesive surface being exposed and said second adhesive surface being covered by a removable strip of material,
- means for severing said second sheet material into strips having a length slightly less than the width of said first sheet material by periodically cutting across the path of advance of said second sheet material,
- means for periodically and in succession, advancing, positioning and holding stationary a strip of second sheet material transverse to said first direction with the exposed adhesive surface of said strip positioned opposite a surface of said constantly advancing first sheet material,
- means for in rapid succession, compressing together said positioned strip and said first sheet material in order to form a composite of materials which is temporarily held due to the continuing hold on said strip, releasing the compression and discontinuing the temperary hold upon said composite of materials, and
- means for severing said composite of materials through the middle of said strip and midway between a first adhered strip and a succeeding one.
Dependencies are inferred from the claim text.