Patent US3072697A successfully refreshed from Google Patents.
Patent US3774497A successfully refreshed from Google Patents.
US3774497A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Molded elastomer braiding machine bobbin carrier
Assignee: JP Stevens and Co Inc
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Filing: 1971-07-26
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Granted: 1973-11-27
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Expires: 1991-07-26
Abstract
Abstract The base of braiding machine bobbin carriers is molded of an elastomer, polyurethane. Weight of the carrier is greatly reduced, wear of the guiding element in the customary multiple track braiding machine is decreased, and the most important effect is that noise is greatly reduced, for example by a factor of ten, (10 db), and even when braiders using the carrier are operated at top speed noise levels can be kept within legal limits.
Inventors
- 👤 J Stahl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:42
CPC Classifications
D; D04; D04C; D04C3/00; D04C3/02; D04C3/14
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
83 words
In a brading maching having bobbin carriers, and carrier provided with a bobbin pillar, thread tensioning means and a base including a gear contacting driving pin and a portion having wedge ends to follow a braiding machine track, the improvement which comprises a base including the portions having wedge ends integrally molded of an elastomer having the structural rigidity of polyurethane and low crystallinity, the bobbin pillar and tensioning pins being molded into the base and forming therewith a firm and unitary structure.
Claim 2
Dependent Claim
83 words
In a brading maching having bobbin carriers, and carrier provided with a bobbin pillar, thread tensioning means and a base including a gear contacting driving pin and a portion having wedge ends to follow a braiding machine track, the improvement which comprises a base including the portions having wedge ends integrally molded of an elastomer having the structural rigidity of polyurethane and low crystallinity, the bobbin pillar and tensioning pins being molded into the base and forming therewith a firm and unitary structure.
Claim 3
Dependent Claim
17 words
A braiding machine bobbin carrier according to claim 1 in which the base is molded of polyurethane.
Claim 4
Dependent Claim
36 words
A braiding machine bobbin carrier according to claim 1 in which two tensioning pins in the form of a U are molded into the base, the bottom of the U providing additional keying to the base.
Claim 5
Dependent Claim
17 words
A braiding machine bobbin carrier according to claim 3 in which the base is molded of polyurethane.
References Cited (Backward Citations)
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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) | 1976-11-26 | 1977-05-28 | 1977-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-26 | 1981-05-28 | 1981-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-26 | 1985-05-28 | 1985-11-27 | $7700.00 | Window Closed / Lapsed |