Patent US3661245A successfully refreshed from Google Patents.
US3661245A
Expired / Lapsed
US
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Abrasion-resistant conveyor belt
Assignee: JSJ BELTING Corp
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Filing: 1969-06-18
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Granted: 1972-05-09
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Expires: 1989-06-18
Abstract
Abstract A conveyor belt with multiple surface areas providing both traction and resistance to abrasion and cutting, and a method of manufacturing the belt.
Inventors
- 👤 Edward K Mol
- 👤 Marvin D Stahl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:48
CPC Classifications
B; B65; B65G; B65G15/00; B65G15/30; B65G15/32; B65G15/34; B65G2201/00; B65G2201/06
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
86 words
A conveyor belt including a tension transmitting body portion backing a load bearing surface; said load bearing surface having at least three zones including dropped article impact and carry zones extending longitudinally thereof; each said impact and carry zone having relatively low and high surface friction coefficients, respectively; and said tension transmitting body portion having secured thereto, in face to face engagement therewith, a strip of anti-friction material extending throughout each said impact zone having a lesser surface friction coefficient than said tension transmitting body portion.
Claim 2
Dependent Claim
86 words
A conveyor belt including a tension transmitting body portion backing a load bearing surface; said load bearing surface having at least three zones including dropped article impact and carry zones extending longitudinally thereof; each said impact and carry zone having relatively low and high surface friction coefficients, respectively; and said tension transmitting body portion having secured thereto, in face to face engagement therewith, a strip of anti-friction material extending throughout each said impact zone having a lesser surface friction coefficient than said tension transmitting body portion.
Claim 3
Dependent Claim
50 words
The conveyor belt of claim 1 wherein said tension transmitting body portion has secured thereto, in face to face engagement therewith, a strip of friction material extending throughout each said carry zone having a higher surface friction coefficient than said strip of anti-friction material extending throughout each said impact zone.
Claim 4
Dependent Claim
56 words
The conveyor belt of claim 2 wherein the thickness of said friction material strip exceeds that of the anti-frIction material strip; said friction material strip including surface irregularities in the face thereof remote from the tension transmitting body portion; and at least some of said irregularities containing anti-friction material continuous with said strip of anti-friction material.
Claim 5
Dependent Claim
77 words
The conveyor belt of claim 1 wherein said load bearing surface has two spaced, parallel impact zones extending longitudinally thereof in spaced relation to the side edges of said belt; said load bearing surface consisting of two spaced, parallel strips of anti-friction material and three spaced, parallel exposed surfaces of said tension transmitting body portion; and said parallel strips of anti-friction material extending throughout said impact zones in spaced relation to the side edges of said belt.
Claim 6
Dependent Claim
81 words
The conveyor belt of claim 1 wherein the side edges of said tension transmitting body portion are serrated; said load bearing surface having two spaced, parallel impact zones extending longitudinally thereof; said load bearing surface consisting of two spaced, parallel strips of anti-friction material and a single exposed surface of said tension transmitting body portion intermediate said anti-friction material strips; and each said anti-friction material strips overlapping and secured to a respective serrated side edge of said tension transmitting body portion.
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) | 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 |