X-ray or gamma ray systems or devices – Photographic detector support – Dental
Patent
1988-11-21
1990-05-01
Fields, Carolyn E.
X-ray or gamma ray systems or devices
Photographic detector support
Dental
378168, 378182, 378184, A61B 1904
Patent
active
049225111
ABSTRACT:
A comfort-enhancing improvement upon a known dental film packet having sensitized film and protection opaque sheets enclosed by a light-tight envelope that includes an opposed pair of generally parallel walls covering the sheets, those walls being joined together along facing marginal areas thereof surrounding the sheets so as to define a main body portion and a perimetric edge portion of the envelope. The improvement comprises a deflectable lateral extension of the perimetric edge portion, the extension projecting outwardly therefrom by an amount rendering the edge portion and its extension sufficiently flexible to be readily deflected and folded back around part of the main body portion toward one of said walls, thereby forming a curved resilient cushion where so folded, when the packet is intraorally positioned for a radiographic exposure. In the embodiment illustrated, the extension projects continuously from all of, and is formed as an integral continuation of, the perimetric edge portion, and thus surrounds the main body portion with a pliant cushioning flap.
REFERENCES:
patent: D290652 (1987-06-01), Simpson
patent: D291917 (1987-09-01), Simpson
patent: 1536341 (1925-05-01), Hodgson
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patent: 1631497 (1927-06-01), Marler
patent: 1994579 (1935-03-01), Hodgson
patent: 2084092 (1937-06-01), Kenney
patent: 3443093 (1969-05-01), Lindenmuth et al.
patent: 4626216 (1986-12-01), Strong-Grainger
patent: 4791657 (1988-12-01), Kirsch et al.
Dixon William C.
Eastman Kodak Company
Fields Carolyn E.
Porta David P.
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