Patent US3660974A successfully refreshed from Google Patents.
US3660974A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Industrial belt construction
Assignee: Owens Corning
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Filing: 1970-08-31
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Granted: 1972-05-09
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Expires: 1990-08-31
Abstract
Abstract An industrial drive belt (V-belt) construction featuring an interior reinforcement in the form of a continuous cord extending longitudinally of the belt in repeated spiral wraps through the belt; the cord bearing a sheath or coating of cushion-like properties to thereby permit the belt to stretch even if the cord itself is relatively nonextensible.
Inventors
- 👤 Alfred Marzocchi
- 👤 Albert J Garbin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 13:52
CPC Classifications
F; F16; F16G; F16G5/00; F16G5/04; F16G5/06; F16G5/16; F16G5/166; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2938; Y10T428/2964
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
92 words
An elongate cord assembly adapted for interior reinforcement of a formed body, said cord assembly being composed of a gathered-together array of a plurality of elongate subassemblies, said elongate subassemblies including a surrounding matrix formed of a material which is convertible to a resilient state, said material containing any substance, including combinations of substances, operable to expand said matrix material to a greater volume when said cord assembly is ultimately subjected to a stimulus following incorporation of said reinforcement cord assembly into said body, said stimulus being selected to activate said substance.
Claim 2
Dependent Claim
92 words
An elongate cord assembly adapted for interior reinforcement of a formed body, said cord assembly being composed of a gathered-together array of a plurality of elongate subassemblies, said elongate subassemblies including a surrounding matrix formed of a material which is convertible to a resilient state, said material containing any substance, including combinations of substances, operable to expand said matrix material to a greater volume when said cord assembly is ultimately subjected to a stimulus following incorporation of said reinforcement cord assembly into said body, said stimulus being selected to activate said substance.
Claim 3
Dependent Claim
19 words
A cord assembly as claimed in claim 1, wherein said subassemblies each include a plurality of continuous glass filaments.
Claim 4
Dependent Claim
13 words
A cord assembly as claimed in claim 2, wherein said matrix is cellular.
Claim 5
Dependent Claim
27 words
A cord assembly as claimed in claim 1, wherein each of said subassemblies includes a surrounding coating of said matrix material, thereby conjointly forming a composite matrix.
Claim 6
Dependent Claim
26 words
A cord assembly as claimed in claim 1, wherein said matrix material is selected from the group consisting of vulcanizable elastomers, thermosetting resins and thermoplastic resins.
Claim 7
Dependent Claim
30 words
A formed product containing the cord assembly of claim 1 disposed interiorly thereof with the matrix material expanded to provide a cushion layer between the subassemblies and the surrounding product.
Claim 8
Dependent Claim
32 words
A vulcanized rubber product reinforced by the cord assembly of claim 1 disposed interiorly thereof with the matrix material expanded to provide a cushion layer between the subassemblies and the surrounding rubber.
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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) | 1975-05-09 | 1975-11-08 | 1976-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-09 | 1979-11-08 | 1980-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-09 | 1983-11-08 | 1984-05-09 | $7700.00 | Window Closed / Lapsed |