Computed tomography brake method and apparatus

Details Computed tomography brake method and apparatus Computed tomography brake method and apparatus

1985-03-04

1987-04-14

Church, Craig E.

X-ray or gamma ray systems or devices

Specific application

Computerized tomography

378 20, 188 822, 188 823, 188166, 318375, G01N 2300

Patent

active

046584080

ABSTRACT:
A computed tomography scanner having a brake which is automatically engaged in the event dynamic motor braking fails to stop scanner motion. Within a predetermined range of motion two brake mechanisms are employed. One has a brake shoe to contact a braking surface and stop rotation of the scanner in one direction and a second has a second brake shoe which stops rotation in an opposite direction. The brake shoes are engaged and retracted by a cam surface which as the scanner rotates, moves into contact with one of two bearings connected to associated ones of the brake shoes.

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patent: 4366577 (1982-12-01), Brandt
patent: 4426578 (1984-01-01), Bradcovich et al.
patent: 4546297 (1985-10-01), Washbourn et al.

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