Roll-up curtain bar attachment device for flexible sheeting

Details Roll-up curtain bar attachment device for flexible sheeting Roll-up curtain bar attachment device for flexible sheeting

1996-09-10

1997-09-30

Purol, David M.

Flexible or portable closure, partition, or panel

Fabric fastening means

To elongated element

160391, A47H 1300

Patent

active

056717954

ABSTRACT:
An improved two-piece, gripping bar device for securing and selective roll-up of flexible sheeting useful in screening outdoor rigid structures, like greenhouses. The identical rod-like pieces present a shape having an elongate cylindrical form upon conjoining which device grips a length of sheeting. The pieces permit firm mating by virture of a tapered ridge on the contacting surface of each member which compliments an opposing tapered recess on the opposing surface of the other member, so that each member presents a pair of parallel, linear ridges and linear recesses. Central of the arcuate outer surface of the device is at least one elongate channel adapted to receive and retain either a second or third sheet of flexible material and thus be rolled-up with the inner sheeting to selected vertical heights.

REFERENCES:
patent: 793967 (1905-07-01), Upperman
patent: 1018272 (1912-02-01), Ross
patent: 1233314 (1917-07-01), Costello
patent: 1909109 (1933-05-01), Kopfstein
patent: 3524491 (1970-08-01), Olson
patent: 4057095 (1977-11-01), Hirota
patent: 4144622 (1979-03-01), Yoshinari
patent: 4193235 (1980-03-01), Cucchiara
patent: 4393915 (1983-07-01), Olson
patent: 4763452 (1988-08-01), Harvey

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