Carpet seaming tape with separate heating circuits
AssigneeSeam Team
InventorsJames B. Gray, Peter L. Jorgenson, Robert A. Joyce
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Abstract
A carpet seaming apparatus includes an elongated bonding tape having an electrical resistance circuit with contacts at the edge of the tape mounted on the face thereof with a hot melt adhesive in the form of elongated beads running the length of the tape that melts in response to electrical current in the resistive conductors. A tool having spaced apart electrical contacts for engaging the contacts adjacent the edges of the tape inducing an electrical current therein for heating and melting the hot melt adhesive.
Claims19
An electrically activated seaming tape comprising:
- an elongated thin flat flexible backing strip;
- a plurality of beads of heat sensitive adhesive mounted on and extending along the length of said tape;
- and
- a plurality of electrical resistance heating circuits defined by a plurality of conductors mounted on and extending transverse to said strip and terminating with electrical contact means adjacent to the side edges of said backing strip for selectively applying a source of electrical voltage in sequence to said circuits along said strip for heating said adhesive.
An electrically activated bonding tape, said tape comprising:
- an elongated thin flat flexible substrate having parallel side edges;
- a plurality of beads of hot melt adhesive mounted on and extending the length of said substrate;
- and
- electrical conductive means defining a continuous series of electrical heating circuits extending generally transversely to said flexible substrate between said parallel edges and including electrical contact means adjacent the side edges of said tape for selectively applying a source of electrical voltage to said electrical heating circuits in sequence along said substrate for heating said adhesive.
Dependencies are inferred from the claim text.