Welding apparatus using transformer with movable secondary and i

Details Welding apparatus using transformer with movable secondary and i Welding apparatus using transformer with movable secondary and i

1982-04-19

1985-10-01

Envall, Jr., Roy N.

Electric heating

Metal heating

For bonding with pressure

219 89, 219116, 336118, B23K 1110, H01F 2104

Patent

active

045448213

ABSTRACT:
A welding apparatus includes an improved transformer having a U-shaped secondary winding movable therein and guided by means external to the transformer. One leg of the U-shaped winding is flexibly connected to a first welding electrode carried by the piston rod of a jack having a jack body and piston adapted for movement relative to one another. The other leg of the winding is rigidly connected to a second welding electrode which is also rigidly secured to the jack body. The jack is movably mounted on guide means external to the transformer. Thus, as the second electrode is moved during a welding operation, the secondary winding is guided within the transformer by the movement thereof.
A method of welding includes moving the first electrode toward a workpiece so as to contact the same and thereafter moving the second electrode to clamp the workpiece for welding, the secondary winding being guided by the movement of the second electrode.
A transformer and the method of manufacturing the transformer wherein a primary winding and magnetic circuit are positioned within a casing having open ends. Bars, carrying tubular conduits, are also positioned within the casing and the end plates are provided to close the ends of the casing. A binding agent is poured into the casing to fill all the free spaces defined by the end plates and to assemble the transformer. The bars are removed after the binding agent has set to form free spaces which serve to accommodate a movable secondary winding.

REFERENCES:
patent: 2519784 (1950-08-01), Oesterlein
patent: 3663790 (1972-05-01), Humblot
patent: 3743816 (1973-07-01), Sato
patent: 4179796 (1979-12-01), Allen
patent: 4233488 (1980-11-01), Schwartz
patent: 4352971 (1982-10-01), Slade

Affiliated with

Also associated with

Rating

Welding apparatus using transformer with movable secondary and i does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Welding apparatus using transformer with movable secondary and i, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Welding apparatus using transformer with movable secondary and i will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1444143