US3586827A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heated roll assembly
Assignee: R H BOULIGNY Inc
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Filing: 1970-01-07
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Granted: 1971-06-22
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Expires: 1990-01-07
Abstract
Abstract A heated roll or ''''godet'''' of the type used for processing synthetic filament or film elements is provided in greater than usual lengths in relation to diameter by employing a shell member of thin-wall configuration with heating means at its inner surface to form the heated roll periphery, and supporting this shell member at both ends while mounting it for rotation on a stub shaft with one shell member end interfitted with a support member on a taper having a slope angle whose tangent corresponds to the ratio of the change of shell member radius to change in length in response to temperature change, so that the shell member remains free for diametric and longitudinal expansion under the influence of the heating means while being firmly assembled for operation.
Inventors
- 👤 Charles S W King
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 00:32
CPC Classifications
H; H05; H05B; H05B3/00; H05B3/0095
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
149 words
A heated roll comprising an elongate, cylindrical shell member having electric heating means at the inner surface thereof and being of thin-wall configuration for minimizing thermal impedance from said heating means to the outer shell member surface, and means mounting said shell member for rotation about its axis with one shell member end seated against a fixed longitudinal abutment and the other shell member end supported on an end plate having a tapered periphery fitting an interior, inwardly extending, taper at said other shell member end, said interfitting end plate and shell member tapers having a slope angle whose tangent corresponds to the ratio of change of shell member radius to change of shell member length in response to temperature change, whereby diametric and longitudinal expansion of said sHell member under the influence of said heating means is freely accommodated while maintaining said shell member firmly mounted for rotation.
Claim 2
Dependent Claim
149 words
A heated roll comprising an elongate, cylindrical shell member having electric heating means at the inner surface thereof and being of thin-wall configuration for minimizing thermal impedance from said heating means to the outer shell member surface, and means mounting said shell member for rotation about its axis with one shell member end seated against a fixed longitudinal abutment and the other shell member end supported on an end plate having a tapered periphery fitting an interior, inwardly extending, taper at said other shell member end, said interfitting end plate and shell member tapers having a slope angle whose tangent corresponds to the ratio of change of shell member radius to change of shell member length in response to temperature change, whereby diametric and longitudinal expansion of said sHell member under the influence of said heating means is freely accommodated while maintaining said shell member firmly mounted for rotation.
Claim 3
Dependent Claim
25 words
A heated roll as defined in claim 1 and further characterized in that the length of said shell member is at least twice its diameter.
Claim 4
Dependent Claim
41 words
A heated roll as defined in claim 1 and further characterized in that said first mentioned shell member end is carried in an annular groove on a ring member therein and the bottom of said groove forms said fixed longitudinal abutment.
Claim 5
Dependent Claim
101 words
A heated roll as defined in claim 1 and further characterized in that said fixed longitudinal abutment and said end plate are carried on a tubular assembly member arranged concentrically in spaced relation within said shell member and fitted internally with a centrally bored mounting block about midway of its length, and in that said mounting mean further includes a stub shaft having one end keyed within the bore of said mounting block and extending therefrom, through adjacent and remote support bearings housed in concentrically spaced relation within said tubular assembly member to a drive fitting for rotating said shell member.
Claim 6
Dependent Claim
33 words
A heated roll as defined in claim 4 and further characterized in that said end plate is removably carried on said tubular assembly member for allowing disassembly of said shell member whenever desired.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-21 | 1974-12-21 | 1975-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-21 | 1978-12-21 | 1979-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-21 | 1982-12-21 | 1983-06-22 | $7700.00 | Window Closed / Lapsed |