US3970733A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making an encapsulated chain
Assignee: Goodyear Tire and Rubber Co
•
Filing: 1971-04-16
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Granted: 1976-07-20
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Expires: 1991-04-16
Abstract
Abstract An elastomeric encapsulated chain wherein the individual links of the chain are covered with an elastomer suitably of polyurethane and in one embodiment the individual links of the chain are separated by a plug of elastomer to permit the chain to be pulled under tension to compress the elastomer plug.
Inventors
- 👤 Louis Seelbach Kraft
- 👤 Thomas E. Burkley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:02
CPC Classifications
B; B29; B29C; B29C70/00; B29C70/58
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
63 words
A method of encapsulating a metal chain consisting suspending the chain in an elongated chamber, said chain having spacers positioned between each link thereof, coating the surface of the chamber with a release agent, and then filling the chamber under reduced pressure with an encapsulating agent to cover the links and spacers, reacting the encapsulating agent to give the chain an elastomeric coating.
Claim 2
Independent Claim
63 words
A method of encapsulating a metal chain consisting suspending the chain in an elongated chamber, said chain having spacers positioned between each link thereof, coating the surface of the chamber with a release agent, and then filling the chamber under reduced pressure with an encapsulating agent to cover the links and spacers, reacting the encapsulating agent to give the chain an elastomeric coating.
Claim 3
Independent Claim
60 words
A method of encapsulating a metal chain consisting suspending the chain in an elongated chamber, said chain being first coated with a release agent prior to encapsulation, coating the surface of the chamber with a release agent, and then filling the chamber under reduced pressure with an encapsulating agent, reacting the encapsulating agent to give the chain an elastomeric coating.
Claim 4
Independent Claim
60 words
A method of encapsulating a metal chain consisting suspending the chain in an elongated chamber, said chain being first coated with a release agent prior to encapsulation, coating the surface of the chamber with a release agent, and then filling the chamber under reduced pressure with an encapsulating agent, reacting the encapsulating agent to give the chain an elastomeric coating.
References Cited (Backward Citations)
US2110226A
Cited
US2983964A
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US3415924A
Cited
US3352955A
Cited
US3274320A
Cited
US3539671A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-07-20 | 1980-01-19 | 1980-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-07-20 | 1984-01-19 | 1984-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-07-20 | 1988-01-19 | 1988-07-20 | $7700.00 | Window Closed / Lapsed |