Method of making a paint roller
OwnerChandra Sekarinventor
Life of this patent
Estimating the term…
Abstract
A method and apparatus for making reusable paint rollers comprised of a core formed from a strip of thermoplastic material. The thermoplastic material is formed into a core by helically winding about a stationary mandril. A layer of adhesive is then applied to the outer surface of the core whereupon a cover is bonded thereto. In a first embodiment the core is formed by winding a plurality of thermoplastic strips about the mandril. In a second embodiment the core is formed by applying liquefied thermoplastic material to a driven belt which transfers the thermoplastic material to the mandril. In yet another embodiment, the paint roller is made by bonding, in a single step, a fabric cover strip to a wound strip wrapped about the mandril.
Claims16
A method of making a paint roller, comprising the steps of:
- helically winding a strip of thermoplastic material around a mandril so as to form a helically wound strip;
- advancing the wound strip along the mandril;
- applying a layer of adhesive onto an outer surface of the wound strip;
- and
- helically wrapping a strip of cover material about the wound strip and over the layer of adhesive, thereby bonding the strip of cover material to the wound strip for forming the paint roller.
A method of making a paint roller, comprising the steps of:
- continuously forming around a mandril an endless core comprised of a strip of thermoplastic material;
- applying a cover about said core, said cover being comprised of a material compatible with said thermoplastic material so that said cover material is capable of fixedly adhering to the core;
- treating at least one of the core and the cover so that the cover is thermoplastically bonded to said core.
Dependencies are inferred from the claim text.