Resources Contact Us Home
Self-developing film pack with improved spread control structure

Image Number 3 for United States Patent #4226519.

A film pack, for use in a self-developing camera, including a film container having improved processing fluid spread control structure embodied in an extended forward wall portion of the container adjacent a film withdrawal slot to locate a spread control surface thereon in closer relation to a pair of pressure rollers in the camera. Although the forward wall is extended, the longitudinal dimension of the container, near its rear wall, has been maintained so that the improved pack will fit existing cameras. Also, the leading end wall of the container has been angled or sloped to improve the upward feed of film units toward an exposure position in the container. An alternative embodiment is disclosed.

  Recently Added Patents
Placental tissue grafts
Nanocatalysts structure, process for the preparation and use thereof
Image forming apparatus
Systems and methods for adaptive error thresholds or adaptive modulation schemes based on atmospheric conditions
Hand sign
Accessing device via communication protocol selection
Solar energy converter with improved photovoltaic efficiency, frequency conversion and thermal management permitting super highly concentrated collection
  Randomly Featured Patents
Phosphorus-containing lubricating compositions
Surface treatment method and system
Fusion proteins for insect control
Process for treating plastics with alkaline permanganate solutions
Method for manufacturing a cell-driving-type micro pump member
Brushless rotary signal transducer
Nickel-metal hydride battery using alkali ion conducting separator
Single lens reflex camera
Polymer control through co-catalyst