Barrel rings

Details Barrel rings Barrel rings

1984-01-25

1987-01-06

Britts, Ramon S.

Flexible or portable closure, partition, or panel

Plural strip, slat, or panel type

Roll type

29110, 29125, E06B 9171

Patent

active

046339272

ABSTRACT:
A barrel ring for use in rolling closures comprising at least two ring sections. One of the ring sections defines a part-circular outer surface. Another of the ring sections defines a part-spiral outer surface. The ring sections are joined together end-to-end to form a barrel ring with the part-spiral surface, at one end, merging smoothly into the part-circular surface.
A method for producing the barrel ring is also disclosed.

REFERENCES:
patent: 1345447 (1920-07-01), Johnson
patent: 1776119 (1930-09-01), Johnson
patent: 3808658 (1974-05-01), Looney
patent: 4158128 (1979-06-01), Evdokimov et al.

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