X-ray or gamma ray systems or devices – Source support – Including movable source
Patent
1991-04-01
1992-09-15
Church, Craig E.
X-ray or gamma ray systems or devices
Source support
Including movable source
378193, H05G 102
Patent
active
051484676
ABSTRACT:
An X-ray source holding apparatus comprises a rotatable plate, a holding unit and a control circuit. The rotatable plate is rotatably supports an X-ray source, and positioning holes are formed in the rotatable plate. The holding unit pivotally supports the rotating plate of the rotatable plate and contains a lock mechanism and a holding unit. The lock mechanism is made up of a lock pin which locks the rotatable plate by engagement with the positioning hole, and a spring which urges the lock pin toward the rotatable plate. The solenoid drives the lock mechanism such that the lock pin is disengaged from the positioning hole. The control circuit starts the driving of the lock mechanism in response to the operation of a control switch. Further, the control circuit controls the solenoid in such a way that the driving of the lock mechanism is stopped when a predetermined time has elapsed from the start of the driving of the lock mechanism.
REFERENCES:
patent: 3803417 (1974-04-01), Kok
patent: 4759048 (1988-07-01), Ohlson
Nishigaki Syunichiro
Sato Hiroaki
Church Craig E.
Kabushiki Kaisha Toshiba
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