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| United States Patent |
6,417,483
|
|
Sator
|
July 9, 2002
|
Method and device for soldering the ends of tubular containers, specially
tubes
Abstract
Method for welding the ends of tubular containers filled with a pourable
medium, in particular tubes, made from a thin-walled flat material which
can be softened or melted through heat, wherein the tubular container is
held in such a fashion that the end which is to be welded is accessible
and the tubular container is heated at the accessible end in a peripheral
region to a temperature which allows welding thereof, and the heated end
is pressed together along an elongated welding seam transverse to the
longitudinal extension of the container, wherein the tubular container is
stationary and a laser beam is directed, via a deflection element
positioned outside of the tubular container, onto the inner wall of the
tubular container, and the deflection element is set into rotation for
heating the peripheral region.
| Inventors:
|
Sator; Alexander P (Uwestr. 12, D-22528 Hamburg, DE)
|
| Appl. No.:
|
446599 |
| Filed:
|
March 20, 2000 |
| PCT Filed:
|
July 10, 1998
|
| PCT NO:
|
PCT/EP98/04317
|
| 371 Date:
|
March 20, 2000
|
| 102(e) Date:
|
March 20, 2000
|
| PCT PUB.NO.:
|
WO99/02330 |
| PCT PUB. Date:
|
January 21, 1999 |
Foreign Application Priority Data
| Jul 11, 1997[DE] | 297 12 264 U |
| Current U.S. Class: |
219/121.64; 219/121.63 |
| Intern'l Class: |
B23K 026/00 |
| Field of Search: |
219/121.64,121.63,121.78,121.85,121.65,121.66
|
References Cited
U.S. Patent Documents
| 4550238 | Oct., 1985 | Van Herle.
| |
| 4699684 | Oct., 1987 | Osborne | 156/379.
|
| 5066846 | Nov., 1991 | Pirl | 219/121.
|
| 5501759 | Mar., 1996 | Forman | 156/272.
|
| Foreign Patent Documents |
| 22 61 388 | Jul., 1973 | DE.
| |
| 26 58 682 | Jun., 1978 | DE.
| |
| 35 05 272 | Mar., 1986 | DE.
| |
| 37 44 402 | Jul., 1989 | DE.
| |
| 0 061 352 | Sep., 1982 | EP.
| |
| 0 087 403 | Aug., 1983 | EP.
| |
| 839634 | May., 1998 | EP | .
|
| 2095615 | Oct., 1982 | GB | .
|
| 206 291 | Oct., 1992 | HU.
| |
| 60 060 497 | Apr., 1985 | JP.
| |
Other References
Potente H et al: "Laserstumpfschweissen" Kunststoffe. vol. 87. Nr. 5, May
1997, pp. 590/591, 594 XP 000656827, No Translation.
|
Primary Examiner: Elve; M. Alexandra
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