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1. CA2002866 - POCHETTE DE FILM POUR RADIOGRAPHIES DENTAIRES

Office
Canada
Numéro de la demande 2002866
Date de la demande 14.11.1989
Numéro de publication 2002866
Date de publication 21.05.1990
Numéro de délivrance
Date de délivrance 02.01.2001
Type de publication C
CIB
G03C 3/00
GPHYSIQUE
03PHOTOGRAPHIE; CINÉMATOGRAPHIE; TECHNIQUES ANALOGUES UTILISANT D'AUTRES ONDES QUE DES ONDES OPTIQUES; ÉLECTROGRAPHIE; HOLOGRAPHIE
CMATÉRIAUX PHOTOSENSIBLES POUR LA PHOTOGRAPHIE; PROCÉDÉS PHOTOGRAPHIQUES, p.ex. PROCÉDÉS CINÉMATOGRAPHIQUES, AUX RAYONS X, EN COULEURS OU STÉRÉOPHOTOGRAPHIQUES; PROCÉDÉS AUXILIAIRES EN PHOTOGRAPHIE
3Conditionnement des films pour leur introduction dans les appareils, p.ex. films en bobines ou "films-packs"; Matériaux d'emballage pour plaques, films ou papiers sensibles à la lumière, p.ex. matériaux caractérisés par l'emploi de colorants particuliers, d'encres d'imprimerie particulières ou d'adhésifs particuliers
CPC
G03C 3/003
GPHYSICS
03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
CPHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES
3Packages of films for inserting into cameras, e.g. roll-films, film-packs; Wrapping materials for light-sensitive plates, films or papers, e.g. materials characterised by the use of special dyes, printing inks, adhesives
003Individual packages for X-ray film, e.g. for dental applications
Déposants GAY, GEORGE C.
Inventeurs GAY, GEORGE C.
Données relatives à la priorité 07273765 21.11.1988 US
Titre
(EN) DENTAL FILM PACKET IMPROVEMENT
(FR) POCHETTE DE FILM POUR RADIOGRAPHIES DENTAIRES
Abrégé
(EN)
A comfort-enhancing improvement upon a known dental film packet (FP) having sensitized film and protective opaque sheets (10 and 12, 14) enclosed by a light-tight envelope (16) that includes an opposed pair of generally parallel walls (16b and 16c, 16f) covering the sheets (10 and 12, 14), those walls (16b and 16c, 16f) being joined together along facing marginal areas thereof (16bm and 16cm, 16fm) surrounding the sheets (10 and 12, 14) so as to define a main body portion (16MB) and a perimetric edge portion (16PE) of the envelope (16). The improvement is characterized by a deflectable lateral extension (16E) of at least part of the perimetric edge portion (16PE), the extension (16E) projecting outwardly therefrom by an amount rendering that part of the edge portion (16PE) and its extension (16E) sufficiently flexible to be readily deflected and folded back around part of the main body portion (16MB) toward one of said walls (16b and 16c, 16f), thereby forming s curved resilient cushion where so folded (C), when the improved packet (FP') is intraorally positioned for a radiographic exposure. In the embodiment illustrated, the extension (16E) projects continuously from all of, and is formed as an integral continuation of, the perimetric edge portion (16PE), and thus surrounds the main body portion (16MB) with a pliant cushioning flap (FF).