| 摘要 |
1,075,099. Lasers. ALLIS-CHALMERS MANUFACTURING CO. May 10, 1966 [May 18, 1965], No. 20716/66. Heading H1C. [Also in Division H2] A protective device for a high voltage transmission line utilizes a laser device for ionizing the air between the line and earth, the laser being triggered shown the current flow through the line or the voltage thereof exceed a given value. The laser device may be of the pulsed type and may be a ruby laser. |
