Elastomeric covered roller having a thermally sprayed bonding material
AssigneeAmerican Roller Company
InventorsBruce E. Hyllberg, Gary S. Butters, Gregory T. Squires, Paul J. Kaprelian
Life of this patent
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Abstract
A elastomer-covered roller (10) is provided with an improved bond coating for bonding the elastomeric cover (14) to the core (11). At least one layer of material (15) is thermally sprayed on the core to form a rough surface having a roughness from 400 microinches Ra to 2000 microinches Ra or greater. In a further improvement a denser, less porous layer (17) may be applied next to the core to protect the core from corrosion, followed by a less dense layer (19) applied to the first layer and having a similarly rough surface (20) for good mechanical bonding.
Claims19
A roller comprising:
- a roller core;
- a bond coat bonded to the core to provide an outer surface roughness;
- a coat of elastomeric material bonded to the bond coat;
- and
- wherein said bond coat comprises a thermally sprayed material selected from a group of materials consisting of metals, metal alloys, ceramics and cermets having an outer surface roughness in a range from 401 microinches Ra to approximately 2000 microinches Ra;
- and
- wherein the elastomeric material is either silicone rubber or a natural rubber or a synthetic rubber or a urethane elastomer.
The roller of claim, 1 wherein the bond coat is a 300 series or 400 series stainless steel alloy.
A roller comprising:
- roller core;
- a bond coat bonded to the core to provide an outer surface roughness;
- a coat of elastomeric material bonded to the bond coat;
- and
- wherein said bond coat comprises a thermally sprayed material selected from a group of materials consisting of metals, metal alloys,, ceramics and cermets;
- a layer of elastomeric material disposed over the bond coat;
- and
- wherein the bond coat further comprises a first layer and a second layer, the first layer having a greater density and less porosity than the second layer so as to resist corrosion of the core.
Dependencies are inferred from the claim text.