US3923585A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for the closing by tramsverse welding of flexible tubes made of metal-thermoplastic laminate
Assignee: TURBOPLAST FRANCE
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Filing: 1974-06-03
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Granted: 1975-12-02
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Expires: 1994-06-03
Abstract
Abstract Method and apparatus for closing by transverse welding of flexible tubes formed of a metal-thermoplastic laminate, in which the end of the flexible tube is gripped in a manner to create a transverse rectilinear closure zone, in which the zone is preheated by the application of external heat and welding is completed by induction heating.
Inventors
- 👤 Jean-Marie Vouillemin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 04:18
CPC Classifications
B; B65; B65D; B65D35/00; B65D35/02; B65D35/04; B65D35/08; B29; B29C; B29C65/00; B29C65/02; B29C65/34; B29C65/36; B29C65/3604; B29C65/3644; B29C65/3656; B29C65/3672; B29C65/3676; B29C65/368; B29C66/00; B29C66/01; B29C66/02; B29C66/024; B29C66/0242; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/40; B29C66/41; B29C66/43; B29C66/431; B29C66/4312; B29C66/43121; B29C66/43123; B29C66/70; B29C66/72; B29C66/723; B29C66/7232; B29C66/72321; B29C66/80; B29C66/81; B29C66/814; B29C66/8141; B29C66/81411; B29C66/81415; B29C66/81419; B29C66/818; B29C66/8181; B29C66/81811; B29C66/8187; B29C66/81875; B29C66/82; B29C66/822; B29C66/8221; B29C66/83; B29C66/832; B29C66/8324; B29C66/83241; B65B; B65B51/00; B65B51/10; B65B51/22; B65B51/227; B65B51/32; B29C66/812; B29C66/8122; B29C66/8225; B29C66/824; B29C66/8242; B29L; B29L2009/00; B29L2009/003; B29L2023/00; B29L2023/20; B29L2031/00; B29L2031/24
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
23 words
APPARATUS FOR CLOSING THE OPEN END PORTION OF FLEXIBLE TUBES FORMED WITH A THERMOPLASTIC INTERLAYER BY TRANSVERSE WELDING OF THE FLEXIBLE TUBE COMPRISING
Claim 2
Dependent Claim
23 words
APPARATUS FOR CLOSING THE OPEN END PORTION OF FLEXIBLE TUBES FORMED WITH A THERMOPLASTIC INTERLAYER BY TRANSVERSE WELDING OF THE FLEXIBLE TUBE COMPRISING
Claim 3
Dependent Claim
52 words
A PAIR OF JAWS MOUNTED FOR MOVEMENT INTO AND OUT OF GRIPPING ENGAGEMENT WITH THE OPPOSITE SIDE OF A PORTION OF THE TUBE ADJACENT THE OPEN END TO FLATTEN AND TO GRIP THE FLATTENED END PORTION OF THE TUBE WITH A FREE END PORTION EXTENDING BEYOND THE JAWS WHEN IN GRIPPING ENGAGEMENT;
Claim 4
Dependent Claim
52 words
A PAIR OF JAWS MOUNTED FOR MOVEMENT INTO AND OUT OF GRIPPING ENGAGEMENT WITH THE OPPOSITE SIDE OF A PORTION OF THE TUBE ADJACENT THE OPEN END TO FLATTEN AND TO GRIP THE FLATTENED END PORTION OF THE TUBE WITH A FREE END PORTION EXTENDING BEYOND THE JAWS WHEN IN GRIPPING ENGAGEMENT;
Claim 5
Dependent Claim
29 words
AN INFRARED RADIATION MEANS BEYOND THE GRIPPING JAWS FOR DIRECTING RADIATIONS ONTO THE FREE FLATTENED END PORTION OF THE TUBE EXTENDING BEYOND THE JAWS TO PRE-HEAT SAID PORTION, AND
Claim 6
Dependent Claim
29 words
AN INFRARED RADIATION MEANS BEYOND THE GRIPPING JAWS FOR DIRECTING RADIATIONS ONTO THE FREE FLATTENED END PORTION OF THE TUBE EXTENDING BEYOND THE JAWS TO PRE-HEAT SAID PORTION, AND
Claim 7
Dependent Claim
27 words
Apparatus as claimed in claim 1 which includes reflector means for concentrating the radiations onto the flattened end portion of the tube extending beyond the gripping means.
Claim 8
Dependent Claim
29 words
an infrared radiation means beyond the gripping jaws for directing radiations onto the free flattened end portion of the tube extending beyond the jaws to pre-heat said portion, and
Claim 9
Dependent Claim
29 words
an infrared radiation means beyond the gripping jaws for directing radiations onto the free flattened end portion of the tube extending beyond the jaws to pre-heat said portion, and
Claim 10
Dependent Claim
79 words
A PAIR OF WELDING JAWS MOUNTED FOR MOVEMENT INTO AND OUT OF ENGAGEMENT WITH THE PRE-HEATED FLATTENED FREE END PORTION OF THE TUBE EXTENDING BEYOND THE GRIPPING JAWS, AT LEAST ONE OF SAID WELDING JAWS EMBODYING INDUCTION HEATING MEANS ADDITIONALLY TO HEAT THE FREE FLATTENED END PORTION OF THE TUBE EXTENDING BEYOND THE GRIPPING JAWS AND TO WELD THE SAME WHEN IN POSITION OF ENGAGEMENT WITH THE TUBE, SAID WELDING JAWS ALSO EMBODYING COOLING MEANS FOR SETTING THE WELD.
Claim 11
Dependent Claim
79 words
A PAIR OF WELDING JAWS MOUNTED FOR MOVEMENT INTO AND OUT OF ENGAGEMENT WITH THE PRE-HEATED FLATTENED FREE END PORTION OF THE TUBE EXTENDING BEYOND THE GRIPPING JAWS, AT LEAST ONE OF SAID WELDING JAWS EMBODYING INDUCTION HEATING MEANS ADDITIONALLY TO HEAT THE FREE FLATTENED END PORTION OF THE TUBE EXTENDING BEYOND THE GRIPPING JAWS AND TO WELD THE SAME WHEN IN POSITION OF ENGAGEMENT WITH THE TUBE, SAID WELDING JAWS ALSO EMBODYING COOLING MEANS FOR SETTING THE WELD.
Claim 12
Dependent Claim
79 words
a pair of welding jaws mounted for movement into and out of engagement with the pre-heated flattened free end portion of the tube extending beyond the gripping jaws, at least one of said welding jaws embodying induction heating means additionally to heat the free flattened end portion of the tube extending beyond the gripping jaws and to weld the same when in position of engagement with the tube, said welding jaws also embodying cooling means for setting the weld.
Claim 13
Dependent Claim
79 words
a pair of welding jaws mounted for movement into and out of engagement with the pre-heated flattened free end portion of the tube extending beyond the gripping jaws, at least one of said welding jaws embodying induction heating means additionally to heat the free flattened end portion of the tube extending beyond the gripping jaws and to weld the same when in position of engagement with the tube, said welding jaws also embodying cooling means for setting the weld.
Claim 14
Dependent Claim
44 words
Apparatus as claimed in claim 1 in which the infra-red radiation means comprises at least one radiating electrical resistance means and which includes a reflector surrounding resistance means for concentrating the radiations onto the end of the tube which projects beyond the gripping means.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-12-01 | 1979-06-02 | 1979-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-01 | 1983-06-02 | 1983-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-01 | 1987-06-02 | 1987-12-02 | $7700.00 | Window Closed / Lapsed |