Flexible or portable closure – partition – or panel – Hanging or drape type – With fabric operating means
Patent
1988-05-02
1990-09-18
Purol, David M.
Flexible or portable closure, partition, or panel
Hanging or drape type
With fabric operating means
1601782, 24136A, 188 651, A47H 500
Patent
active
049571524
ABSTRACT:
Disclosed is a device for applying tension to the free ends of a curtain track draw cord that is looped about a pulley at one end of the track. The device consists of a first member containing two parallel channels to acept the free ends of the draw cord and second member, attached to a second pulley block at the opposite end of the curtain track, to which the first member is secured to trap the cords therebetween. The second member contains tubular passageways opposite and perpendicular to the channels in the first member in which are contained coil springs, ball bearings are located between the springs and the draw cords cause the cords to frictionally engage the walls of the channels and maintain tension in the cords lying within the curtain track.
REFERENCES:
patent: 1921627 (1933-08-01), Lucchesi
patent: 2357911 (1944-09-01), Schaefer
patent: 3253645 (1966-05-01), Stall
patent: 3337903 (1967-08-01), Kenney
patent: 3455365 (1969-07-01), Stall
patent: 3709071 (1973-01-01), Moransais
patent: 3931846 (1976-01-01), Zilver
patent: 4129927 (1978-12-01), Anderson
patent: 4651795 (1987-03-01), Valle et al.
Knight Peter E.
Lyons John E.
Purol David M.
Swish Products Limited
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