US3413175A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for welding together the terminal edges of superposed layers of thermoplastic material
Assignee: Windmoeller and Hoelscher KG
•
Filing: 1963-04-08
•
Granted: 1968-11-26
•
Expires: 1983-04-08
Abstract
No abstract record available.
Inventors
- 👤 Rochla Kurt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:47
CPC Classifications
B; B29; B29C; B29C66/00; B29C66/80; B29C66/81; B29C66/818; B29C66/8181; B29C66/81811; B29C65/00; B29C65/02; B29C65/14; B29C65/1429; B29C65/1448; B29C65/1464; B29C65/18; B29C65/22; B29C65/221; B29C65/224; B29C65/38; B29C65/74; B29C65/745; B29C65/78; B29C65/7858; B29C65/7861; B29C65/787; B29C65/7873; B29C66/01; B29C66/03; B29C66/032; B29C66/0324; B29C66/03241; B29C66/034; B29C66/0342; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/13; B29C66/137; B29C66/40; B29C66/41; B29C66/43; B29C66/431; B29C66/4312; B29C66/43121; B29C66/70; B29C66/73; B29C66/739; B29C66/7392; B29C66/73921; B29C66/814; B29C66/8141; B29C66/81411; B29C66/81425; B29C66/8182; B29C66/81821; B29C66/83; B29C66/832; B29C66/8322; B29C66/83221; B29C66/836; B29C66/84; B29C66/843; B29C66/8432; B29C2793/00; B29C2793/0081; B29C65/24; B29C65/30; B29C65/305; B29C66/90; B29C66/91; B29C66/914; B29C66/9141; B29C66/91421; B29C66/91431; B29C66/9161; B29C66/91641; B29L; B29L2031/00; B29L2031/712; B29L2031/7128; B31; B31B; B31B70/00; B31B70/60; B31B70/64
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
193 words
A DEVICE FOR WELDING TOGETHER THE TERMINAL EDGES OF SUPERPOSED LAYERS OF THERMOPLASTIC TUBULAR WEB SECTIONS COMPRISING AT LEAST ONE WELDING TOOL HAVING A WELDING SURFACE EXTENDING AT RIGHT ANGLES TO THE PLANE OF THE SECTIONS, AT LEAST ONE PAIR OF ENDLESS OPPOSITELY TRAVELING TENSIONED BANDS DISPOSED ONE ABOVE THE OTHER AND ADAPTED TO ENGAGE THE SECTIONS FROM OPPOSITE SIDES WITH A PORTION OF THE WEB SECTIONS EXTENDING SO THAT A ZONE OF MATERIAL HAVING A WIDTH OF AT LEAST 0.12 INCHES IS RETAINED BETWEEN THE POINT OF ENGAGEMENT WITH THE BANDS AND THE FUSIONWELDED SEAM TO BE FORMED, MEANS TO MOVE SAID BANDS SO THAT A SUCCESSION OF THE TUBULAR WEB SECTIONS MOVES CONTINUOUSLY TRANSVERSELY OF THEIR LONGITUDINAL AXES, THE MUTUALLY FACING STRETCHES OF THE BANDS FUNCTIONING TO MOVE THE EDGES OF THE TUBULAR WEB SECTIONS PAST SAID AT LEAST ONE WELDING TOOL WITHOUT THE WELDING TOOL COMING INTO CONTACT WITH THE SAID EDGES, AND A COOLING STATION BEING CONSTITUTED BY HOLLOW ROLLERS THROUGH WHICH A COOLING MEDIUM IS CIRCULATED, THE ROLLERS BEING URGED TOWARD THE BANDS AND EXTENDING BEYOND THE EDGES OF THE TUBULAR WEB SECTIONS WHICH HAVE BEEN WELDED TOGETHER.
Claim 2
Independent Claim
193 words
A DEVICE FOR WELDING TOGETHER THE TERMINAL EDGES OF SUPERPOSED LAYERS OF THERMOPLASTIC TUBULAR WEB SECTIONS COMPRISING AT LEAST ONE WELDING TOOL HAVING A WELDING SURFACE EXTENDING AT RIGHT ANGLES TO THE PLANE OF THE SECTIONS, AT LEAST ONE PAIR OF ENDLESS OPPOSITELY TRAVELING TENSIONED BANDS DISPOSED ONE ABOVE THE OTHER AND ADAPTED TO ENGAGE THE SECTIONS FROM OPPOSITE SIDES WITH A PORTION OF THE WEB SECTIONS EXTENDING SO THAT A ZONE OF MATERIAL HAVING A WIDTH OF AT LEAST 0.12 INCHES IS RETAINED BETWEEN THE POINT OF ENGAGEMENT WITH THE BANDS AND THE FUSIONWELDED SEAM TO BE FORMED, MEANS TO MOVE SAID BANDS SO THAT A SUCCESSION OF THE TUBULAR WEB SECTIONS MOVES CONTINUOUSLY TRANSVERSELY OF THEIR LONGITUDINAL AXES, THE MUTUALLY FACING STRETCHES OF THE BANDS FUNCTIONING TO MOVE THE EDGES OF THE TUBULAR WEB SECTIONS PAST SAID AT LEAST ONE WELDING TOOL WITHOUT THE WELDING TOOL COMING INTO CONTACT WITH THE SAID EDGES, AND A COOLING STATION BEING CONSTITUTED BY HOLLOW ROLLERS THROUGH WHICH A COOLING MEDIUM IS CIRCULATED, THE ROLLERS BEING URGED TOWARD THE BANDS AND EXTENDING BEYOND THE EDGES OF THE TUBULAR WEB SECTIONS WHICH HAVE BEEN WELDED TOGETHER.
References Cited (Backward Citations)
US2488212A
Cited
US2606850A
Cited
US2679469A
Cited
US2682910A
Cited
US2691474A
Cited
US3087845A
Cited
US2979113A
Cited
US3066064A
Cited
US3131623A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-11-26 | 1972-05-27 | 1972-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-26 | 1976-05-27 | 1976-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-26 | 1980-05-27 | 1980-11-26 | $7700.00 | Window Closed / Lapsed |