US3616064A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of synthetic textile yarns
Assignee: Radyne Ltd
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Filing: 1968-04-25
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Granted: 1971-10-26
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Expires: 1988-04-25
Abstract
Abstract Apparatus for ultrasonically welding together two threadlines under a controlled pressure. The two ends of the threadlines are overlapped in a groove formed along an anvil and a resiliently biased plunger compresses the two ends into the groove. Vibrations transmitted through the anvil weld the two ends together. Pressure is controlled by tensioning springs which stiffen when the vibrations are applied and hence provide the equivalent of a heavy backing mass.
Inventors
- 👤 Desmond Reginald Long
- 👤 Alan Edgar Crawford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:12
CPC Classifications
B; B65; B65H; B65H69/00; B65H69/08; B65H69/085; B29; B29C; B29C65/00; B29C65/02; B29C65/08; B29C66/00; B29C66/69; B29C66/70; B29C66/73; B29C66/739; B29C66/7392; B29C66/80; B29C66/82; B29C66/822; B29C66/8221; B29C66/8226; B29C66/83; B29C66/832; B29C66/8322; B29C66/84; B29C66/861; B29C66/90; B29C66/92; B29C66/924; B29C66/9261; B29C66/92651; B29C66/92653; B65H2701/00; B65H2701/30; B65H2701/31
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
Apparatus according to claim 1, in which said backing member comprises a movable arm pivotally mounted on the said frame member, and the apparatus further includes a cam mounted for rotation about an axis through the said arm, a compression spring resiliently biasing the head of the plunger against the said cam and means for rotating said cam about the said axis to press said plunger against the said compression spring.
Claim 2
Dependent Claim
32 words
Apparatus according to claim 1, including an adjustable stop to prevent said plunger from bottoming in the said groove and to vary the shape of the cross section obtained at the joint.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-10-25 | 1975-04-26 | 1975-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-25 | 1979-04-26 | 1979-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-25 | 1983-04-26 | 1983-10-26 | $7700.00 | Window Closed / Lapsed |