Roller cover core and method of manufacture
OwnerLawrence J. Bower, Stephen R. Geisslerinventors
Life of this patent
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Abstract
A method of making a paint roller cover includes feeding a single strip of polypropylene, by a core material strip feeder, onto a mandrel; heating the single strip of polypropylene, by a heater, before the single strip of polypropylene is wound about the mandrel; and overlapping edges of the single strip of polypropylene as the single strip of polypropylene is wound about the mandrel so that the overlapped edges fuse together. The method also includes applying an adhesive, by an adhesive applicator, to an outer surface of the single strip of polypropylene; and feeding a strip of fabric cover material, by a fabric cover strip feeder, about the mandrel and onto the outer surface of the single strip of polypropylene.
Claims20
A method of making a paint roller cover, the method comprising:
- feeding a single strip of polypropylene, by a core material strip feeder, onto a mandrel;
- heating the single strip of polypropylene, by a heater, before the single strip of polypropylene is wound about the mandrel;
- overlapping edges of the single strip of polypropylene as the single strip of polypropylene is wound about the mandrel so that the overlapped edges fuse together;
- applying an adhesive, by an adhesive applicator, to an outer surface of the single strip of polypropylene;
- and
- feeding a strip of fabric cover material, by a fabric cover strip feeder, about the mandrel and onto the outer surface of the single strip of polypropylene.
An apparatus for making a paint roller cover, the apparatus comprising:
- a mandrel;
- a core material strip feeder operable to feed a single strip of polypropylene onto the mandrel, wherein edges of the single strip of polypropylene overlap as the single strip of polypropylene is wound about the mandrel;
- a heater positioned adjacent the mandrel to heat the single strip of polypropylene before the single strip of polypropylene is wound about the mandrel so that the overlapped edges fuse together;
- an adhesive applicator operable to apply an adhesive to an outer surface of the single strip of polypropylene;
- and
- a fabric cover strip feeder operable to feed a strip of fabric cover material about the mandrel and onto the outer surface of the single strip of polypropylene.
A roller cover for use with a paint roller, the roller cover comprising:
- a core having a helically wound single strip of polypropylene including an outer surface and overlapped edges;
- a helically wound outer fabric layer including a backer and a fabric pile coupled to the backer, the outer fabric layer helically wound around the core;
- and
- an adhesive layer positioned between the outer surface of the strip of polypropylene and the backer of the fabric layer that couples the outer fabric layer to the core.
Dependencies are inferred from the claim text.