Patent US4430756A successfully refreshed from Google Patents.
Patent US4150581A successfully refreshed from Google Patents.
US4150581A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Belt for transport of materials and transmission of power
Assignee: ADVANCED BELT TECHNOLOGY LP
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Filing: 1973-08-27
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Granted: 1979-04-24
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Expires: 1993-08-27
Abstract
Abstract A single or multiply endless belt possessing predetermined elastic properties consisting of a flat knit substrate which has been impregnated with an elastomeric material and made endless by wrapping upon itself and the method of producing the same.
Inventors
- 👤 Howard G. Walters
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:15
CPC Classifications
B; B29; B29D; B29D29/00; B29D29/06; Y; Y10; Y10T; Y10T428/00; Y10T428/13; Y10T428/1352; Y10T428/1362; Y10T428/24; Y10T428/24777; Y10T428/24785
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
75 words
A belt for transport of materials and transmission of power comprising a flat knit fabric, a cured elastomeric impregnant in said fabric and on the surface thereof, an end of said fabric joined to the remainder of said fabric to form a tube with said impregnant providing the means for joining said end to said fabric and said belt having the capability of stretching up to 10% of its unstretched length with substantially complete recovery.
Claim 2
Dependent Claim
75 words
A belt for transport of materials and transmission of power comprising a flat knit fabric, a cured elastomeric impregnant in said fabric and on the surface thereof, an end of said fabric joined to the remainder of said fabric to form a tube with said impregnant providing the means for joining said end to said fabric and said belt having the capability of stretching up to 10% of its unstretched length with substantially complete recovery.
Claim 3
Dependent Claim
23 words
An endless belt in accordance with claim 1 in which the weight of the finished product is at least forty percent elastomeric impregnant.
Claim 4
Dependent Claim
60 words
A belt for transport of materials and transmission of power comprising a flat knit fabric, a cured elastomeric impregnant in said fabric and on the surfaces thereof, the ends of said fabric joined together by said impregnant to form a tube and said belt having the capability of stretching up to 10% of its unstretched length with substantially complete recovery.
Claim 5
Dependent Claim
60 words
A belt for transport of materials and transmission of power comprising a flat knit fabric, a cured elastomeric impregnant in said fabric and on the surfaces thereof, the ends of said fabric joined together by said impregnant to form a tube and said belt having the capability of stretching up to 10% of its unstretched length with substantially complete recovery.
Claim 6
Dependent Claim
21 words
An endless belt according to claim 3 in which the weight of the finished product is at least 40% elastomeric impregnant.
Claim 7
Dependent Claim
63 words
A belt for transport of materials and transmission of power comprising a flat knit fabric, a cured elastomeric impregnant in said fabric and on the surfaces thereof and said fabric wrapped upon itself to form a tube with facing surfaces joined by said impregnant, and said belt having the capability of stretching up to 10% of its unstretched length with substantially complete recovery.
Claim 8
Dependent Claim
63 words
A belt for transport of materials and transmission of power comprising a flat knit fabric, a cured elastomeric impregnant in said fabric and on the surfaces thereof and said fabric wrapped upon itself to form a tube with facing surfaces joined by said impregnant, and said belt having the capability of stretching up to 10% of its unstretched length with substantially complete recovery.
Claim 9
Dependent Claim
21 words
An endless belt according to claim 5 in which the weight of the finished product is at least 40% elastomeric impregnant.
Claim 10
Dependent Claim
75 words
A belt for transport of materials and transmission of power comprising a tubular support member, a knit fabric wound around said tube, a cured elostomeric impregnant in said tube and said knit fabric and on the surfaces thereof and facing surfaces of said knit fabric and said tube joined by said impregnant and said belt having the capability of stretching within the range of 0 to 10% of its unstretched length with substantially complete recovery.
Claim 11
Dependent Claim
75 words
A belt for transport of materials and transmission of power comprising a tubular support member, a knit fabric wound around said tube, a cured elostomeric impregnant in said tube and said knit fabric and on the surfaces thereof and facing surfaces of said knit fabric and said tube joined by said impregnant and said belt having the capability of stretching within the range of 0 to 10% of its unstretched length with substantially complete recovery.
Claim 12
Dependent Claim
21 words
An endless belt according to claim 7 in which the weight of the finished product is at least 40% elastomeric impregnant.
Claim 13
Dependent Claim
84 words
A belt for transport of materials and transmission of power comprising a tubular support member, a knit fabric in the form of a second tube within said first tube, a cured elastomeric impregnant in said support member and said knit fabric and on the surfaces thereof and facing surfaces of said knit fabric and said support member joined by said impregnant and said belt having the capability of stretching within the range of 0 to 10% of its unstretched length with substantially complete recovery.
Claim 14
Dependent Claim
84 words
A belt for transport of materials and transmission of power comprising a tubular support member, a knit fabric in the form of a second tube within said first tube, a cured elastomeric impregnant in said support member and said knit fabric and on the surfaces thereof and facing surfaces of said knit fabric and said support member joined by said impregnant and said belt having the capability of stretching within the range of 0 to 10% of its unstretched length with substantially complete recovery.
Claim 15
Dependent Claim
21 words
An endless belt according to claim 9 in which the weight of the finished product is at least 40% elastomeric impregnant.
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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) | 1982-04-23 | 1982-10-23 | 1983-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-04-23 | 1986-10-23 | 1987-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-04-23 | 1990-10-23 | 1991-04-24 | $7700.00 | Window Closed / Lapsed |