US3853017A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Endless power transmission belt
Assignee: Dayco Products LLC
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Filing: 1973-11-06
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Granted: 1974-12-10
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Expires: 1993-11-06
Abstract
Abstract An endless power transmission belt made primarily of elastomeric materials is provided and has a plurality of laterally spaced belt elements and a tie band interconnecting the belt elements with the tie band being reinforced by a knitted fabric layer which assures that the tie band has sufficient strength to hold the belt elements together as a unit yet allows tie band extensibility to take into account adverse operating conditions of the belt.
Inventors
- 👤 J White
- 👤 J Miranti
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:34
CPC Classifications
F; F16; F16G; F16G5/00; F16G5/04; F16G5/06; F16G1/00; F16G1/06; F16G1/08
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
90 words
An endless power transmission belt comprising a plurality of laterally spaced belt elements and a tie band interconnecting said belt elements, said tie band being reinforced by a knitted layer which allows tie band extensibility between said belt elements in an infinite number of directions enabling efficient engagement of each element with opposed surfaces comprising a groove of an associated sheave even under adverse conditions with said knitted layer holding said elements together as a unitary construction substantially free of any tendency for said band to shear between said elements.
Claim 2
Dependent Claim
90 words
An endless power transmission belt comprising a plurality of laterally spaced belt elements and a tie band interconnecting said belt elements, said tie band being reinforced by a knitted layer which allows tie band extensibility between said belt elements in an infinite number of directions enabling efficient engagement of each element with opposed surfaces comprising a groove of an associated sheave even under adverse conditions with said knitted layer holding said elements together as a unitary construction substantially free of any tendency for said band to shear between said elements.
Claim 3
Dependent Claim
26 words
A belt as set forth in claim 1 in which said tie band is made of an elastomeric material and said knitted layer is embedded therein.
Claim 4
Dependent Claim
50 words
A belt as set forth in claim 2 in which each of said elements has a substantially trapezoidal cross-sectional configuration and is comprised of tension section, a compression section, and a load-carrying section with said tie band binding said elements together by bonding each element adjacent the tension section thereof.
Claim 5
Dependent Claim
38 words
A belt as set forth in claim 1 in which each of said belt elements has an outer woven cover and said tie band is integrally bonded to each element against the top surface of its woven cover.
Claim 6
Dependent Claim
36 words
A belt as set forth in claim 3 in which each of said belt elements is a raw-edged element and said tie band is bonded against the top surface of the tension section of each element.
Claim 7
Dependent Claim
20 words
A belt as set forth in claim 1 in which said knitted layer is made of a knitted fabric material.
Claim 8
Dependent Claim
21 words
A belt as set forth in claim 1 in which said knitted layer is made of a knitted nylon fabric material.
Claim 9
Dependent Claim
18 words
A belt as set forth in claim 1 in which said knitted layer is made of natural fibers.
Claim 10
Dependent Claim
18 words
A belt as set forth in claim 1 in which said knitted layer is made of synthetic fibers.
Claim 11
Dependent Claim
18 words
A belt as set forth in claim 1 in which said knitted layer is made of glass fibers.
Claim 12
Dependent Claim
17 words
A belt as set forth in claim 1 in which said knitted layer is made of metal.
Claim 13
Dependent Claim
29 words
A belt as set forth in claim 1 and further comprising at least another knitted layer in said tie band arranged in vertically spaced relation from said first-named layer.
Claim 14
Dependent Claim
17 words
A belt as set forth in claim 2 in which said elastomeric material is a rubber compound.
Claim 15
Dependent Claim
18 words
A belt as set forth in claim 2 in which said elastomeric material is a synthetic plastic material.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-12-09 | 1978-06-10 | 1978-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-09 | 1982-06-10 | 1982-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-09 | 1986-06-10 | 1986-12-10 | $7700.00 | Window Closed / Lapsed |