Loose-leaf photo album

Details Loose-leaf photo album Loose-leaf photo album

1989-11-09

1991-03-05

Watts, Douglas D.

Books, strips, and leaves

Book, element thereof, or accessory therefor

16254, 16266, B42D 500, E05D 712, E05D 710

Patent

active

049972065

ABSTRACT:
A loose-leaf binder is disclosed, such as a loose-leaf photo album or a loose-leaf file binder, on which is disposed a plurality of hinge members having a pillar at one end and an axially concave knuckle at the other end. A longitudinal slit is formed on the outer wall of the concave knuckle and an extension bore is formed axially in the concave knuckle so that a pillar may be snapped into the concave knuckle via the longitudinal slit and the free end of the pillar can be inserted into the extension bore so as to increase the radial engaging force between the hinge members.

REFERENCES:
patent: 2963734 (1960-12-01), Huget
patent: 4161017 (1979-07-01), Pierce et al.

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