Patent US4776071A successfully refreshed from Google Patents.
US4776071A
Expired / Lapsed
US
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Conveyor roller for roller conveyor in glass sheet processing system
Assignee: Nippon Sheet Glass Co Ltd
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Filing: 1987-01-30
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Granted: 1988-10-11
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Expires: 2007-01-30
Abstract
Abstract A conveyor roller for use in a roller conveyor for conveying a heated glass sheet in a glass sheet processing system includes an elongated core rotatable by driver means, and a support body made of a felt material comprising fibers of at least one type which is mechanically strong and/or resistant to heat, the support body being mounted on and disposed around an outer peripheral surface of the core for supporting the glass sheet. The felt material comprises a base woven web of glass fibers, 10 to 50 wt % of aramid fibers and 50 to 80 wt % of carbon fibers which are by needling intertwined with each other and with the base woven web.
Inventors
- 👤 Hideo Yoshizawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:50
CPC Classifications
C; C03; C03B; C03B40/00; C03B40/005; B; B21; B21B; B21B27/00; B29; B29D; B29D99/00; B29D99/0032; B29D99/0035; B32; B32B; B32B5/00; B32B5/02; C03B23/00; C03B23/02; C03B23/023; C03B23/03; C03B23/0302; C03B35/00; C03B35/14; C03B35/16; C03B35/18; C03B35/181; B29L; B29L2031/00; B29L2031/32; B29L2031/324
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
128 words
A conveyor roller for use in a roller conveyor for conveying a heated glass sheet in a glass sheet processing system, comprising: an elongated core rotatable by drive means; and a support disposed on the outer peripheral surface of the core for supporting the glass sheet; said support being made of a felt material comprising a plurality of fibers, at least one of which being mechanically sufficiently strong to support the heated glass sheet and sufficiently resilient to heat to withstand the heat of the glass sheet, said felt material comprising a base woven web of glass fibers, 10 to 50 wt % of aramid fibers, and 50 to 80 wt % of carbon fibers, the fibers being intertwined with each other and with said base woven web.
Claim 2
Dependent Claim
128 words
A conveyor roller for use in a roller conveyor for conveying a heated glass sheet in a glass sheet processing system, comprising: an elongated core rotatable by drive means; and a support disposed on the outer peripheral surface of the core for supporting the glass sheet; said support being made of a felt material comprising a plurality of fibers, at least one of which being mechanically sufficiently strong to support the heated glass sheet and sufficiently resilient to heat to withstand the heat of the glass sheet, said felt material comprising a base woven web of glass fibers, 10 to 50 wt % of aramid fibers, and 50 to 80 wt % of carbon fibers, the fibers being intertwined with each other and with said base woven web.
Claim 3
Dependent Claim
27 words
A conveyor roller according to claim 1, wherein the glass and aramid fibers are needled into intertwined relationship with each other and with the base woven web.
Claim 4
Dependent Claim
26 words
A conveyor roller according to claim 1, wherein each of said aramid and carbon fibers has a diameter in the range of 2 to 18 microns.
Claim 5
Dependent Claim
22 words
A conveyor roller according to claim 1, wherein said felt material has a thickness in the range of 3 to 10 mm.
Claim 6
Dependent Claim
25 words
A conveyor roller according to claim 1, wherein said felt material is in the form of a sleeve bonded onto said core by an adhesive.
Claim 7
Dependent Claim
27 words
A conveyor roller according to claim 1, wherein said felt material is in the form of an elongated tape helically wound around the bonded onto said core.
Claim 8
Dependent Claim
119 words
A conveyor roller for use in a roller conveyor for conveying a heated glass sheet in a glass sheet processing system, comprising: an elongated core rotatable by drive means; and a support disposed on the outer peripheral surface of the core for supporting the glass sheet; said support being made of a felt material comprising a plurality of fibers, at least one of which being mechanically sufficiently strong to support the heated glass sheet and sufficiently resilient to heat to withstand the heat of the glass sheet, said felt material comprising a base woven web of glass fibers, aramid fibers, carbon fibers and stainless steel fibers, the fibers being intertwined with each other and with said base woven web.
Claim 9
Dependent Claim
119 words
A conveyor roller for use in a roller conveyor for conveying a heated glass sheet in a glass sheet processing system, comprising: an elongated core rotatable by drive means; and a support disposed on the outer peripheral surface of the core for supporting the glass sheet; said support being made of a felt material comprising a plurality of fibers, at least one of which being mechanically sufficiently strong to support the heated glass sheet and sufficiently resilient to heat to withstand the heat of the glass sheet, said felt material comprising a base woven web of glass fibers, aramid fibers, carbon fibers and stainless steel fibers, the fibers being intertwined with each other and with said base woven web.
Claim 10
Dependent Claim
29 words
A conveyor roller according to claim 7, wherein said aramid fibers are 50 wt %, carbon fibers are 30 wt % and stainless steel fibers are 20 wt %.
Claim 11
Dependent Claim
30 words
A conveyor roller according to claim 7 wherein said glass, aramid, carbon and stainless steel fibers are needled into intertwined relationship with each other and with the base woven web.
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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) | 1991-10-11 | 1992-04-11 | 1992-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-10-11 | 1996-04-11 | 1996-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-10-11 | 2000-04-11 | 2000-10-11 | $7700.00 | Window Closed / Lapsed |