Shunt triggered flashtube having safety feature

Details Shunt triggered flashtube having safety feature Shunt triggered flashtube having safety feature

1976-06-30

1978-08-08

Smith, Alfred E.

Electric lamp and discharge devices: systems

With automatic shunt and/or cutout

Shunt circuit closing

315241R, 328 10, 361 56, H05B 4130, H02H 720

Patent

active

041059298

ABSTRACT:
A flashtube has an hermetically sealed glass envelope containing an inert gas and a pair of electrodes between which an arc discharge path is defined during lamp operation, and an insulated external trigger wire at the outer surface of the envelope. The trigger circuit includes a safety feature in the form of a sealed spaced gap to prevent an arc from occurring in the flashtube in the event that the flashtube envelope is cracked or broken.

REFERENCES:
patent: 2397337 (1946-03-01), Clough
patent: 2542345 (1951-02-01), Miles
patent: 2878422 (1959-03-01), Stoelting
patent: 3748989 (1971-12-01), Ban
patent: 3965393 (1971-03-01), Chamberlain
patent: 4047064 (1977-09-01), Cosco et al.

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