Patrone

Details Patrone Patrone

1993-07-22

1994-11-29

Blankenship, Howard B.

G03B 1726

Patent

active

053694570

ABSTRACT:
A Patrone according to the present invention comprises a spool that winds film in the form of a roll between two flanges thereof, and a Patrone body for storing said spool so that the spool can rotate freely. The spool is made of a shading material. The distal part of the film is provided with a leader whose width is equal to or smaller than the dimension between the two flanges and which winds round the outer circumference of film wound about the spool by at least one turn. The leader may also be formed of or include a shading material.

REFERENCES:
patent: 4218032 (1980-08-01), Nagel et al.
patent: 4423943 (1984-01-01), Gold
patent: 4443077 (1984-04-01), Tanikawa
patent: 4455076 (1984-06-01), Birkeland
patent: 4860966 (1989-08-01), Cloutier
patent: 4930712 (1990-06-01), Smart
patent: 5187518 (1993-02-01), Kitagawd

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