US5206992A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compressible roller
Assignee: American Roller Co LLC
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Filing: 1992-06-12
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Granted: 1993-05-04
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Expires: 2012-06-12
Abstract
Abstract A compressible roller especially useful in high speed printing systems consists of a rigid core and a compressible cover. The cover consists of a first relatively thick layer of compressible foam which is bonded to the core, an elastomeric seal bonded to the foam; and an outer print layer of a compatible elastomer bonded to the seal. A method of preparing the roller also is disclosed.
Inventors
- 👤 James R. Carlson
- 👤 Gerald J. Landl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:23
CPC Classifications
B; B29; B29D; B29D99/00; B29D99/0032; B29D99/0035; B29C; B29C35/00; B29C35/18; B41; B41F; B41F13/00; B41F13/08; B41N; B41N7/00; B29C2793/00; B29K; B29K2075/00; B29K2105/00; B29K2105/04; B29L; B29L2031/00; B29L2031/32; B29L2031/324; B41N2207/00; B41N2207/02; B41N2207/14; F; F16; F16C; F16C13/00; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49544; Y10T29/49547; Y10T29/49549; Y10T29/4956; Y10T29/49563
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
132 words
A method of making a compressible roller comprises selecting a rigid roller core; gluing with an adhesive a foam layer about the core to form a foam and core assembly; wrapping a tape about the core and foam assembly to compress the foam and curing the adhesive to bond the core and the foam layer together; removing tape and grinding the foam layer to the desired dimensions; forming an elastomeric seal on the outer surface of the foam layer to prevent any gas contained therein from exiting; applying a coating of a compatible elastomer over the seal while rotating the core and foam assembly to obtain an outer coating of a desired thickness; curing the outer coating; and, then grinding the outer coating to obtain an outer layer of a desired smoothness.
Claim 2
Independent Claim
132 words
A method of making a compressible roller comprises selecting a rigid roller core; gluing with an adhesive a foam layer about the core to form a foam and core assembly; wrapping a tape about the core and foam assembly to compress the foam and curing the adhesive to bond the core and the foam layer together; removing tape and grinding the foam layer to the desired dimensions; forming an elastomeric seal on the outer surface of the foam layer to prevent any gas contained therein from exiting; applying a coating of a compatible elastomer over the seal while rotating the core and foam assembly to obtain an outer coating of a desired thickness; curing the outer coating; and, then grinding the outer coating to obtain an outer layer of a desired smoothness.
Claim 3
Dependent Claim
17 words
The method of claim 1 in which exposed ends of the roller are sealed with an elastomer.
Claim 4
Independent Claim
150 words
A method of preparing a compressible printing roller, said method comprising: (a) gluing a layer of compressible foam to a rigid printing roller core with an adhesive; (b) curing the adhesive; (c) grinding the foam layer to a desired roundness and smoothness; (d) sealing the outer surface of the foam layer with a room temperature vulcanizing urethane which enters into exposed pores of the foam; (e) curing the urethane to form a seal which is mechanically bonded to and which prevents gas from leaving the compressible foam layer; (f) applying a coating of a room temperature vulcanizing urethane which is compatible with and forms a chemical bond with the seal over the seal until an outer coating of a desired thickness is obtained; (g) allowing the outer coating to completely cure; and, (h) grinding away the excess thickness of the outer coating to obtain a print layer of desired properties.
Claim 5
Independent Claim
150 words
A method of preparing a compressible printing roller, said method comprising: (a) gluing a layer of compressible foam to a rigid printing roller core with an adhesive; (b) curing the adhesive; (c) grinding the foam layer to a desired roundness and smoothness; (d) sealing the outer surface of the foam layer with a room temperature vulcanizing urethane which enters into exposed pores of the foam; (e) curing the urethane to form a seal which is mechanically bonded to and which prevents gas from leaving the compressible foam layer; (f) applying a coating of a room temperature vulcanizing urethane which is compatible with and forms a chemical bond with the seal over the seal until an outer coating of a desired thickness is obtained; (g) allowing the outer coating to completely cure; and, (h) grinding away the excess thickness of the outer coating to obtain a print layer of desired properties.
Claim 6
Dependent Claim
20 words
The method of claim 3 in which exposed ends of the compressible foam layer and the outer coatings are sealed.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-05-03 | 1996-11-02 | 1997-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-05-03 | 2000-11-02 | 2001-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-05-03 | 2004-11-02 | 2005-05-04 | $7700.00 | Window Closed / Lapsed |