Apparatus for developing films, and particularly X-ray films as employed in dental applications
OwnerGiorgio Dragoneinventor
Life of this patent
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Abstract
A film developing apparatus in which an exposed film still enclosed in its protective wrapping is inserted into a magazine and the magazine is put as a cover on the apparatus. The film is extracted from the magazine by pulling a tab of the protective wrapping projecting out of the apparatus and is then transferred in succession through developing, fixing and washing baths internally to the apparatus. The film is then reinserted into the magazine upon completion of the developing step. Transfer of the film through the developing and washing baths occurs by a gripper entrained by an endless belt controlled by an electronic control device.
Claims7
An apparatus for developing exposed films, in particular X-ray exposed films as employed in dental applications, comprising an opaque housing, an opening in said housing, a cover for light-tight closing said opening, developing, fixing and washing baths for said films within said housing, entraining means movable along a path within said housing for entraining said films and causing immersion of said films into said developing, fixing and washing baths at subsequent times, wherein said cover defines a magazine for an exposed film wrapped in a protective wrapping having a closing tab and comprises a frame having at least one first seat therein, an exit mouth open toward said path of said entraining means and an edge adjacent said exit mouth to cause said tab of said wrapping inserted in said cover to become folded on said edge and slideably clamped between said cover and said housing and to project out of said housing when said cover is arranged within said opening, whereby pulling of said projecting tab causes advancement of said film along said at least one first seat out of said wrapping and said cover to said entraining means.
Dependencies are inferred from the claim text.