Welding method and apparatus

Details Welding method and apparatus Welding method and apparatus

1999-07-09

2000-05-16

Walberg, Teresa

Electric resistance heating devices

Heating devices

Radiant heater

392407, 1562722, 250504R, F21V 900

Patent

active

060647981

ABSTRACT:
A filter for absorbing electromagnetic radiation which is used in heating a welding zone wherein a first part is joined to a second part. The filter includes a solid material for absorbing undesired wavelengths of radiation from a heating source before the radiation reaches the welding zone. The filter also has a housing which contains a chamber within which a fluid is placed. The fluid cools the solid material and also may absorb undesired wavelengths of radiation from the heating source before the radiation reaches the welding zone. A heat exchanger is connected to the filter in order to cool the fluid during the filtering process.

REFERENCES:
patent: 3586417 (1971-06-01), Fields
patent: 3675477 (1972-07-01), Allen
patent: 4314255 (1982-02-01), Kornbau
patent: 5444814 (1995-08-01), Hofius Sr.
patent: 5949959 (1999-09-01), Lovett et al.

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