Electric heating – Metal heating – Nonatmospheric environment at hot spot
Patent
1977-03-01
1979-10-30
Goldberg, E. A.
Electric heating
Metal heating
Nonatmospheric environment at hot spot
219 74, 219137R, 405154, B23K 932
Patent
active
041729749
ABSTRACT:
A tool for underwater welding comprises an open-mouthed bell with an axially extending electrode inside, part of that electrode being surrounded by a tube supplying gas under pressure from a pumping station floating on the surface. Another tube linking the bell with that pumping station supplies water under pressure to an annular chamber open toward an array of fluid-guiding blades carried by the bell. In one embodiment, the bell is rotatably mounted and carries the blades on its outer surface, being set in rotation by the oncoming flow; in another embodiment, the bell is stationary and the blades are arranged on its inner surface whereby the water swirls in a film along that surface. In either case the circulating water forms a vortex that passes along the bell periphery and around the bell mouth which is slightly spaced from the workpiece to be welded, the resulting centrifugal forces preventing the entry of surrounding water into the bell whereby a gaseous atmosphere is maintained in its interior.
REFERENCES:
patent: 4035602 (1977-07-01), Berghoe
patent: 4039798 (1977-08-01), Lythall
patent: 4052632 (1977-10-01), Sagara
Budliger Jean-Pierre
Katzarkoff Jean
Roggen Rolf
Stingelin Valentin
Walt Guido
Battelle (Memorial Institute)
Goldberg E. A.
Ross Karl F.
LandOfFree
Underwater welding apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Underwater welding apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Underwater welding apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-20884