Patent US3681176A successfully refreshed from Google Patents.
US3681176A
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Ultrasonic welding and cutting apparatus
Assignee: Reifenhauser KG
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Filing: 1969-08-15
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Granted: 1972-08-01
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Expires: 1989-08-15
Abstract
Abstract An apparatus for the ultrasonic welding and cutting of a pair of juxtaposed synthetic-resin sheets has a sonotrode and an anvil, one being engageable with the other, upon their relative movement toward one another. Mounted on the anvil or sonotrode is a spacer element is the form of a ridge running along the middle of the welding face of the tool. This ridge has a height slightly less than the combined thickness of the two sheets so that when the spacer ridge engages the opposite welding face it cuts the sheets while the surfaces of the face blanking the spacer ridge coact with the opposite face to form a welded seam.
Inventors
- 👤 Hans Reifenhauser
- 👤 Paul Reitemeyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:02
CPC Classifications
B; B29; B29C; B29C65/00; B29C65/02; B29C65/08; B29C65/74; B29C65/743; B29C65/7433; B29C65/7443; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/20; B29C66/22; B29C66/221; B29C66/40; B29C66/41; B29C66/43; B29C66/431; B29C66/4312; B29C66/70; B29C66/73; B29C66/739; B29C66/7392; B29C66/73921; B29C66/80; B29C66/81; B29C66/814; B29C66/8141; B29C66/81427; B29C66/81433; B29C66/81435; B29C66/816; B29C66/8167; B29C66/82; B29C66/824; B29C66/8242; B29C66/83; B29C66/832; B29C66/8322; B29C66/84; B29C66/849; B29C66/8491; B29C66/90; B29C66/92; B29C66/924; B29C66/9261; B29C66/92611; B29L; B29L2031/00; B29L2031/712; B29L2031/7128; B29L2031/7158; Y; Y10; Y10T; Y10T156/00; Y10T156/12; Y10T156/1313
Claims Analysis
Total Claims: 0
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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) | 1975-08-01 | 1976-01-31 | 1976-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-01 | 1980-01-31 | 1980-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-01 | 1984-01-31 | 1984-08-01 | $7700.00 | Window Closed / Lapsed |