X-ray or gamma ray systems or devices – Specific application – Absorption
Patent
1989-06-12
1990-12-11
Fields, Carolyn E.
X-ray or gamma ray systems or devices
Specific application
Absorption
378 56, 378 58, G01N 2304
Patent
active
049775863
ABSTRACT:
A portable tire x-ray apparatus includes a frame having horizontal rollers supporting a tire vertically and a motor connected to at least one of the rollers to cause rotation of the tire. An x-ray tube and a fluoroscope are spaced apart approximately the length of the outer diameter of the tire and are aligned to irradiate an area including at least one half the width of the tread and a portion of the sidewall of the tire. A video camera is optically coupled to the fluoroscope and is connected to a video tape recorder and a live video monitor to convert a radiographic image on the fluoroscope to a video signal which may be recorded and displayed on the monitor. Irregularities in the tire, including possible defects, are visible on the fluoroscope and may be viewed on the monitor and recorded. The video recorder is also provided with a video monitor such that live radiographic images may be displayed on the live monitor while previously recorded images are played back and displayed on the recorder monitor for comparison of the images to discover new irregularities in the tire. A pivotal carrier mechanism for both the x-ray tube and fluoroscope allows an operator to operably switch sides of the tire to be inspected without requiring physical removal, rotation and replacement of the tire relative to the apparatus in order to inspect both sides of the tire.
REFERENCES:
patent: 2220246 (1940-11-01), Kizaur
patent: 2301251 (1942-11-01), Capen
patent: 2339550 (1944-01-01), Bosomworth
patent: 3809900 (1974-05-01), Steffel
patent: 3826919 (1974-07-01), Yaroshuk et al.
patent: 3903416 (1975-09-01), Fox
patent: 4207470 (1980-06-01), Heisner et al.
patent: 4839914 (1989-06-01), Curry
Fields Carolyn E.
Porta David P.
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