US3290083A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fabric load lifting sling
Assignee: Wear Flex Corp
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Filing: 1965-05-19
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Granted: 1966-12-06
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Expires: 1985-05-19
Abstract
No abstract record available.
Inventors
- 👤 Norton Roy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:12
CPC Classifications
B; B66; B66C; B66C1/00; B66C1/10; B66C1/12; B66C1/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
175 words
A LOAD LIFTING SLING COMPRISING: SEPARABLE LOAD BEARING AND LOAD CONTACTING PARTS, SO ASSEMBLED THAT REGARDLESS OF HOW THE SLING IS USED TO LIFT A LOAD, THE LOAD BEARING PART IS NEVER SUBJECTED TO ABRASION OR WEAR RESULTING FROM RELATIVE MOVEMENT BETWEEN IT AND THE LOAD, AND THE LOAD CONTACTING PART IS NEVER SUBJECTED TO TENSILE STRESS, THE LOAD BEARING PART COMPRISING AN ENDLESS BAND OF FABRIC WEBBING HAVING HIGH TENSILE STRENGTH; AND THE LOAD CONTACTING PART COMPRISING AN ELONGATED MEMBER OF RELATIVELY FLEXIBLE MATERIAL HAVING GOOD ABRASION AND WEAR RESISTING PROPERTIES, SUBSTANTIALLY PARALLEL TOP AND BOTTOM SURFACES AND PARALLEL SIDE EDGES, AND HAVING LATERALLY ADJACENT TUNNEL MEANS ALONG THE LENGTH THEREOF; THE ENDLESS BAND OF FABRIC WEBBING WHICH FORMS THE LOAD BEARING PART HAVING OPPOSITE STRETCHES THEREOF SLIDABLY RECEIVED IN SAID LATERALLY ADJACENT TUNNEL MEANS AND HAVING LOOPED END PORTIONS PROJECTING BEYOND THE ENDS OF THE LOAD CONTACTING PART AND FORMING EYES BY WHICH THE SLING MAY BE ATTACHED TO A CRANE HOOK WHILE THE LOAD CONTACTING PART ENGAGES A LOAD TO BE LIFTED.
Claim 2
Dependent Claim
175 words
A LOAD LIFTING SLING COMPRISING: SEPARABLE LOAD BEARING AND LOAD CONTACTING PARTS, SO ASSEMBLED THAT REGARDLESS OF HOW THE SLING IS USED TO LIFT A LOAD, THE LOAD BEARING PART IS NEVER SUBJECTED TO ABRASION OR WEAR RESULTING FROM RELATIVE MOVEMENT BETWEEN IT AND THE LOAD, AND THE LOAD CONTACTING PART IS NEVER SUBJECTED TO TENSILE STRESS, THE LOAD BEARING PART COMPRISING AN ENDLESS BAND OF FABRIC WEBBING HAVING HIGH TENSILE STRENGTH; AND THE LOAD CONTACTING PART COMPRISING AN ELONGATED MEMBER OF RELATIVELY FLEXIBLE MATERIAL HAVING GOOD ABRASION AND WEAR RESISTING PROPERTIES, SUBSTANTIALLY PARALLEL TOP AND BOTTOM SURFACES AND PARALLEL SIDE EDGES, AND HAVING LATERALLY ADJACENT TUNNEL MEANS ALONG THE LENGTH THEREOF; THE ENDLESS BAND OF FABRIC WEBBING WHICH FORMS THE LOAD BEARING PART HAVING OPPOSITE STRETCHES THEREOF SLIDABLY RECEIVED IN SAID LATERALLY ADJACENT TUNNEL MEANS AND HAVING LOOPED END PORTIONS PROJECTING BEYOND THE ENDS OF THE LOAD CONTACTING PART AND FORMING EYES BY WHICH THE SLING MAY BE ATTACHED TO A CRANE HOOK WHILE THE LOAD CONTACTING PART ENGAGES A LOAD TO BE LIFTED.
References Cited (Backward Citations)
US1314397A
Cited
US1168802A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-05 | 1970-06-06 | 1970-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-05 | 1974-06-06 | 1974-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-05 | 1978-06-06 | 1978-12-06 | $7700.00 | Window Closed / Lapsed |