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AssigneeThe Wooster Brush Company
InventorsGordon F. Musch, Serafin J. Gerardo, Dennis D. Humphrey, Bruce E. Bochnak, Richard L. Barker, William J. Roberts, Harold R. Young
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A paint roller cover with thermoplastic core and method and apparatus for making same by spirally wrapping a strip of hot extruded thermoplastic film onto an exterior surface of hollow thermoplastic tubing and spirally wrapping a strip of fabric having a thermoplastic backing onto the spiral wound strip of thermoplastic film while the thermoplastic film is still sufficiently hot to cause the thermoplastic film to flow into interstices in the thermoplastic backing of the fabric and permanently bond the fabric to the exterior surface of the tubing. The fabric covered tubing is then cooled and separated into a plurality of individual lengths of fabric covered tubes.
A method of making roller covers comprising the steps of spirally wrapping a strip of hot thermoplastic film onto an exterior surface of hollow thermoplastic tubing, spirally wrapping a strip of fabric having a thermoplastic backing onto the spiral wound strip of thermoplastic film while the thermoplastic film is still sufficiently hot to cause the thermoplastic film to flow into interstices in the thermoplastic backing of the fabric and bond the fabric to the exterior surface of the tubing, cooling the fabric covered tubing, and cutting the fabric covered tubing into a plurality of individual roller covers.
A method of making roller covers comprising the steps of wrapping a strip of hot thermoplastic film onto an exterior surface of hollow thermoplastic tubing, wrapping a strip of fabric having a backing onto the thermoplastic film while the thermoplastic film is still sufficiently hot to cause the thermoplastic film to bond the fabric to the exterior surface of the tubing, cooling the fabric covered tubing, and separating the fabric covered tubing into a plurality of individual lengths of fabric covered tubes.
Apparatus for use in making paint roller covers comprising means for wrapping a strip of hot thermoplastic film onto an exterior surface of hollow thermoplastic tubing, means for wrapping a strip of fabric having a backing onto the thermoplastic film while the thermoplastic film is still sufficiently hot to cause the thermoplastic film to bond the fabric to the exterior surface of the tubing, means for cooling the fabric covered tubing, and means for separating the fabric covered tubing into a plurality of individual lengths of fabric covered tubes.
The apparatus of clam 3 further comprising means for actuating said cutter assembly to cut through the fabric every time a length of fabric covered tubing corresponding to the length of each individual tube is in alignment with said cutter assembly.
Dependencies are inferred from the claim text.