Flexible or portable closure – partition – or panel – Plural strip – slat – or panel type – Venetian blind type
Patent
1997-01-06
1998-02-10
Purol, David M.
Flexible or portable closure, partition, or panel
Plural strip, slat, or panel type
Venetian blind type
24115F, E06B 938
Patent
active
057158843
ABSTRACT:
The window covering cord safety assembly includes at least one window covering control cord, and preferably two or more such cords, the free ends of which bear expanded beads or eyelets or the like. A safety device is releasably connected to the free ends of the control cords. The device includes a housing having closed upper and lower ends interconnected by closed sidewalls and collectively defining a generally central space within which a retainer is slideably disposed. The retainer has external pockets in its lower portion. The space has an expanded upper portion and the retainer has a lower portion of reduced diameter. The free ends of the control cords and eyelets pass down through openings in the housing top into the retainer pockets and are trapped therein until the lower portion of the retainer moves up into the expanded upper portion of the space to release them from the retainer pockets. A spring is mounted between the retainer top and the housing top to bias the retainer downwardly. A screw can pass down through the housing top to adjustably compress the spring and therey control the upward force necessary to move the retainer into the control cord-releasing position. An operating cord can be secured to the bottom of the retainer and depend from the housing. Separation of the control cords from the housing and each other prevents constricting entangling of a child in the control cords.
REFERENCES:
patent: 3633646 (1972-01-01), Zilver
patent: 4909298 (1990-03-01), Langhart
patent: 5472036 (1995-12-01), Judkins
patent: 5473797 (1995-12-01), Wu
patent: 5494092 (1996-02-01), Georgopoulos
patent: 5501262 (1996-03-01), Inaba et al.
patent: 5504977 (1996-04-01), Weppner
patent: 5560414 (1996-10-01), Judkins et al.
Nist Donald E.
Purol David M.
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