Patent US3851378A successfully refreshed from Google Patents.
Patent US4421482A successfully refreshed from Google Patents.
US4421482A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conveyor roll for conveying heated glass sheets
Assignee: GLT CORP A CORP OF
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Filing: 1982-01-07
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Granted: 1983-12-20
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Expires: 2002-01-07
Abstract
Abstract A conveyor roll (20,21,20') for conveying heated glass sheets on a horizontal roller conveyor of a glass sheet processing system is disclosed as including a shaft (42,70,42) having a support (44,72,80) of aromatic polyamide fibers for engaging the conveyed glass sheets. Kevlar fibers are preferably utilized for the support (44,72,80) so as to have the requisite thermal stability and resistance to cutting by broken glass. One embodiment of the roll (20) has a helically wrapped support (44) comprising braided Kevlar rope or an outer Kevlar sleeve (64) and a central core (62) which may be longitudinally extending metallic or glass fiber strands (66) or a helical spring (68). Another embodiment of the conveyor roll (21) includes a ceramic roll shaft (70) of fused silica extending through an outer sleeve (72) of Kevlar fibers. A further embodiment of the conveyor roll (20') includes a support (80) having annular conveying discs (82) made of Kevlar fibers and spaced along the length of the shaft (42). In each roll embodiment (20,21,20') the associated Kevlar support (44,72,80) preferably has an outer surface (46,74,86) of the same diameter as drive surfaces (56) on end members (52) of the shaft.
Inventors
- 👤 Ronald A. McMaster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:32
CPC Classifications
C; C03; C03B; C03B35/00; C03B35/14; C03B35/16; C03B35/18; C03B35/186; B; B65; B65G; B65G39/00; B65G39/02; B65G39/07; C03B35/165; C03B35/181; C03B35/185; C03B35/189; D; D04; D04C; D04C1/00; D04C1/06; D04C1/12; F; F16; F16C; F16C13/00; F27; F27D; F27D3/00; F27D3/02; F27D3/026
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
85 words
A conveyor roll for conveying heated glass sheets, said roll comprising: an elongated shaft having a rotational axis about which the roll is rotatively driven; a support on the shaft for supporting heated glass sheets conveyed on the roll during rotational driving thereof; and said support including an outer surface of uncoated aromatic polyamide fibers which are stable at a sufficiently high temperature to directly engage and support conveyed glass sheets which are heated to a temperature range to about 1100 to 1200 degrees Fahrenheit.
Claim 2
Dependent Claim
85 words
A conveyor roll for conveying heated glass sheets, said roll comprising: an elongated shaft having a rotational axis about which the roll is rotatively driven; a support on the shaft for supporting heated glass sheets conveyed on the roll during rotational driving thereof; and said support including an outer surface of uncoated aromatic polyamide fibers which are stable at a sufficiently high temperature to directly engage and support conveyed glass sheets which are heated to a temperature range to about 1100 to 1200 degrees Fahrenheit.
Claim 3
Dependent Claim
27 words
A conveyor roll as in claim 1 wherein the support has an elongated shape of a generally flexible construction and is wrapped helically about the roll shaft.
Claim 4
Dependent Claim
19 words
A conveyor roll as in claim 2 wherein the helically wrapped support comprises a braided rope of Kevlar fibers.
Claim 5
Dependent Claim
23 words
A conveyor roll as is claim 3 wherein the Kevlar rope has a generally rectangular cross section with a greater width than height.
Claim 6
Dependent Claim
17 words
A conveyor roll as is claim 3 wherein the Kevlar rope has a generally square cross section.
Claim 7
Dependent Claim
27 words
A conveyor roll as in claim 2 wherein the helically wrapped support comprises a core and an outer sleeve of Kevlar fibers through which the core extends.
Claim 8
Dependent Claim
17 words
A conveyor roll as in claim 6 wherein the core of the support includes longitudinally extending strands.
Claim 9
Dependent Claim
16 words
A conveyor roll as in claim 7 wherein the strands of the core comprise metallic wires.
Claim 10
Dependent Claim
16 words
A conveyor roll is in claim 7 wherein the strands of the core comprise glass fibers.
Claim 11
Dependent Claim
17 words
A conveyor roll as in claim 6 wherein the core of the support comprises a helical spring.
Claim 12
Dependent Claim
32 words
a conveyor roll as in claim 1 wherein the roll shaft is of a ceramic material and wherein the support comprises a sleeve of Kevlar fibers through which the roll shaft extends.
Claim 13
Dependent Claim
30 words
A conveyor roll is in claim 1 wherein the support comprises a plurality of annular conveying discs spaced along the shaft with the shaft extending therethrough in a perpendicular relationship.
Claim 14
Dependent Claim
13 words
Apparatus as in claim 1 wherein the aromatic polyamide fibers are Kevlar fibers.
Claim 15
Dependent Claim
79 words
A conveyor roll for conveying heated glass sheets, said roll comprising: an elongated shaft having a rotational axis about which the roll is rotatively driven; a support on the shaft for supporting heated glass sheets conveyed on the roll during rotational driving thereof; and said support including an outer surface of uncoated Kevlar fibers to thereby permit direct engagement and support of conveyed glass sheets which are heated to a temperature range of about 1100 to 1200 degrees Fahrenheit.
Claim 16
Dependent Claim
79 words
A conveyor roll for conveying heated glass sheets, said roll comprising: an elongated shaft having a rotational axis about which the roll is rotatively driven; a support on the shaft for supporting heated glass sheets conveyed on the roll during rotational driving thereof; and said support including an outer surface of uncoated Kevlar fibers to thereby permit direct engagement and support of conveyed glass sheets which are heated to a temperature range of about 1100 to 1200 degrees Fahrenheit.
Claim 17
Dependent Claim
169 words
A conveyor roll for conveying heated glass sheets, said roll comprising: an elongated shaft having a rotational axis about which the roll is rotatively driven; a pair of axially spaced end members on the shaft for rotatively driving the roll; said end members having round drive surfaces of the same diameter as each other; an elongated support of a generally flexible construction wrapped helically about the shaft to support heated glass sheets conveyed on the roll during rotational driving thereof; said support including uncoated Kevlar fibers braided into a rope having an outer surface of uncoated Kevlar fibers that are capable of directly engaging and supporting conveyed glass sheets which are heated to a temperature range of about 1100 to 1200 degrees Fahrenheit; and said outer surface of the Kevlar rope defining a helix of a diameter equal to the diameter of the drive surfaces on the end members of the shaft such that the glass sheet conveyance is at the same speed as that of the drive surfaces.
Claim 18
Dependent Claim
169 words
A conveyor roll for conveying heated glass sheets, said roll comprising: an elongated shaft having a rotational axis about which the roll is rotatively driven; a pair of axially spaced end members on the shaft for rotatively driving the roll; said end members having round drive surfaces of the same diameter as each other; an elongated support of a generally flexible construction wrapped helically about the shaft to support heated glass sheets conveyed on the roll during rotational driving thereof; said support including uncoated Kevlar fibers braided into a rope having an outer surface of uncoated Kevlar fibers that are capable of directly engaging and supporting conveyed glass sheets which are heated to a temperature range of about 1100 to 1200 degrees Fahrenheit; and said outer surface of the Kevlar rope defining a helix of a diameter equal to the diameter of the drive surfaces on the end members of the shaft such that the glass sheet conveyance is at the same speed as that of the drive surfaces.
Claim 19
Dependent Claim
189 words
A conveyor roll for conveying heated glass sheets, said roll comprising: an elongated shaft having a rotational axis about which the roll is rotatively driven; a pair of axially spaced end members on the shaft for rotatively driving the roll; said end members having round drive surfaces of the same diameter as each other; an elongated support of a generally flexible construction wrapped helically about the about the shaft to support heated glass sheets conveyed on the roll during rotational driving thereof; said support including a core having longitudinally extending strands; the support also including an outer sleeve of uncoated Kevlar fibers through which the core extends; said Kevlar sleeve having an outer surface of uncoated Kevlar fibers that are capable of directly engaging and supporting conveyed glass sheets which are heated to a temperature range of about 1100 to 1200 degrees Fahrenheit; and said outer surface of the Kevlar sleeve defining a helix of a diameter equal to the diameter of the drive surfaces on the end members of the shaft such that the glass sheet conveyance is at the same speed as that of the drive surfaces.
Claim 20
Dependent Claim
189 words
A conveyor roll for conveying heated glass sheets, said roll comprising: an elongated shaft having a rotational axis about which the roll is rotatively driven; a pair of axially spaced end members on the shaft for rotatively driving the roll; said end members having round drive surfaces of the same diameter as each other; an elongated support of a generally flexible construction wrapped helically about the about the shaft to support heated glass sheets conveyed on the roll during rotational driving thereof; said support including a core having longitudinally extending strands; the support also including an outer sleeve of uncoated Kevlar fibers through which the core extends; said Kevlar sleeve having an outer surface of uncoated Kevlar fibers that are capable of directly engaging and supporting conveyed glass sheets which are heated to a temperature range of about 1100 to 1200 degrees Fahrenheit; and said outer surface of the Kevlar sleeve defining a helix of a diameter equal to the diameter of the drive surfaces on the end members of the shaft such that the glass sheet conveyance is at the same speed as that of the drive surfaces.
Claim 21
Dependent Claim
187 words
A conveyor roll for conveying heated glass sheets, said roll comprising: an elongated shaft having a rotational axis about which the roll is rotatively driven; a pair of axially spaced end members on the shaft for rotatively driving the roll; said end members having round drive surfaces of the same diameter as each other; an elongated support of a generally flexible construction wrapped helically about the shaft to support heated glass sheets conveyed on the roll during rotational driving thereof; said support including a core having a helical spring; the support also including an outer sleeve of uncoated Kevlar fibers through which the core extends; said Kevlar sleeve having an outer surface of uncoated Kevlar fibers that are capable of directly engaging and supporting conveyed glass sheets which are heated to a temperature range of about 1100 to 1200 degrees Fahrenheit; and said outer surface of the Kevlar sleeve defining a helix of a diameter equal to the diameter of the drive surfaces on the end members of the shaft such that the glass sheet conveyance is at the same speed as that of the drive surfaces.
Claim 22
Dependent Claim
187 words
A conveyor roll for conveying heated glass sheets, said roll comprising: an elongated shaft having a rotational axis about which the roll is rotatively driven; a pair of axially spaced end members on the shaft for rotatively driving the roll; said end members having round drive surfaces of the same diameter as each other; an elongated support of a generally flexible construction wrapped helically about the shaft to support heated glass sheets conveyed on the roll during rotational driving thereof; said support including a core having a helical spring; the support also including an outer sleeve of uncoated Kevlar fibers through which the core extends; said Kevlar sleeve having an outer surface of uncoated Kevlar fibers that are capable of directly engaging and supporting conveyed glass sheets which are heated to a temperature range of about 1100 to 1200 degrees Fahrenheit; and said outer surface of the Kevlar sleeve defining a helix of a diameter equal to the diameter of the drive surfaces on the end members of the shaft such that the glass sheet conveyance is at the same speed as that of the drive surfaces.
Claim 23
Dependent Claim
173 words
A conveyer roll for conveying heated glass sheets, said roll comprising: an elongated shaft of fused silica having a rotational axis about which the roll is rotatively driven; a pair of axially spaced end members on the shaft for rotatively driving the roll; said end members having round drive surfaces of the same diameter as each other; a support on the shaft between said end members for supporting heated glass sheets conveyed on the roll during rotational driving thereof; said support being a sleeve of uncoated Kevlar fibers through which the shaft extends; said Kevlar sleeve having an outer surface of uncoated Kevlar fibers capable of directly engaging and supporting conveyed glass sheets heated to a temperature range of about 1100 to 1200 degrees Fahrenheit; and said outer surface of the Kevlar sleeve having a round shape of a diameter approximately equal to the diameter of the drive surfaces on the end members of the shaft such that the glass sheet conveyance is at the same speed as that of the drive surfaces.
Claim 24
Dependent Claim
173 words
A conveyer roll for conveying heated glass sheets, said roll comprising: an elongated shaft of fused silica having a rotational axis about which the roll is rotatively driven; a pair of axially spaced end members on the shaft for rotatively driving the roll; said end members having round drive surfaces of the same diameter as each other; a support on the shaft between said end members for supporting heated glass sheets conveyed on the roll during rotational driving thereof; said support being a sleeve of uncoated Kevlar fibers through which the shaft extends; said Kevlar sleeve having an outer surface of uncoated Kevlar fibers capable of directly engaging and supporting conveyed glass sheets heated to a temperature range of about 1100 to 1200 degrees Fahrenheit; and said outer surface of the Kevlar sleeve having a round shape of a diameter approximately equal to the diameter of the drive surfaces on the end members of the shaft such that the glass sheet conveyance is at the same speed as that of the drive surfaces.
Claim 25
Dependent Claim
165 words
A conveyor roll for conveying heated glass sheets, said roll comprising: an elongated shaft having a rotational axis about which the roll is rotatively driven; a pair of axially spaced end members on the shaft for rotatively driving the roll; said end members having round drive surfaces of the same diameter as each other; a support including a plurality of annular conveying discs spaced along the shaft with the shaft extending therethrough in a perpendicular relationship; said conveying discs each being made of uncoated Kevlar fibers and including a round outer surface of uncoated Kevlar fibers that are capable of directly engaging and supporting conveyed glass sheets which are heated to a temperature range of about 1100 to 1200 degrees Fahrenheit; and the round outer surface of each conveying disc having a diameter equal to the diameter of the drive surfaces on the end members of the shaft such that the glass sheet conveyance is at the same speed as that of the drive surfaces.
Claim 26
Dependent Claim
165 words
A conveyor roll for conveying heated glass sheets, said roll comprising: an elongated shaft having a rotational axis about which the roll is rotatively driven; a pair of axially spaced end members on the shaft for rotatively driving the roll; said end members having round drive surfaces of the same diameter as each other; a support including a plurality of annular conveying discs spaced along the shaft with the shaft extending therethrough in a perpendicular relationship; said conveying discs each being made of uncoated Kevlar fibers and including a round outer surface of uncoated Kevlar fibers that are capable of directly engaging and supporting conveyed glass sheets which are heated to a temperature range of about 1100 to 1200 degrees Fahrenheit; and the round outer surface of each conveying disc having a diameter equal to the diameter of the drive surfaces on the end members of the shaft such that the glass sheet conveyance is at the same speed as that of the drive surfaces.
Claim 27
Dependent Claim
55 words
In hot glass sheet handling apparatus including a generally rigid member, the improvement comprising: a support on the rigid member having an outer surface of uncoated aromatic polyamide fibers which are stable at a sufficiently high temperature to directly engage and support glass sheets heated to a temperature of about 1100 to 1200 degrees Fahrenheit.
Claim 28
Dependent Claim
55 words
In hot glass sheet handling apparatus including a generally rigid member, the improvement comprising: a support on the rigid member having an outer surface of uncoated aromatic polyamide fibers which are stable at a sufficiently high temperature to directly engage and support glass sheets heated to a temperature of about 1100 to 1200 degrees Fahrenheit.
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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) | 1986-12-19 | 1987-06-20 | 1987-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-12-19 | 1991-06-20 | 1991-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-12-19 | 1995-06-20 | 1995-12-20 | $7700.00 | Window Closed / Lapsed |