Closed loop control system for shade assembly

Details Closed loop control system for shade assembly Closed loop control system for shade assembly

1987-04-13

1989-08-01

Johnson, Blair M.

Flexible or portable closure, partition, or panel

Pleating type

Lazy-tong links pivot about axes parallel to panel

160172, 160322, E06B 394

Patent

active

048526274

ABSTRACT:
A fenestration control includes a single loop cord in association with guide members and a drive pulley built into a generally channel-shaped framework and is specifically designed for use with pleated or cell-type shades. The entire shade assembly is capable of being removably installed within window openings and the like and may be operated manually, or by single or dual motor drives depending upon the size and load requirements of the shade.

REFERENCES:
patent: 2037393 (1936-04-01), Roberts
patent: 2874612 (1959-02-01), Luboshez
patent: 3465806 (1969-09-01), Sulkes
patent: 3576206 (1971-04-01), Trexler
patent: 3646877 (1972-03-01), Ellis
patent: 3665996 (1972-05-01), Roberts
patent: 3752208 (1973-08-01), Roberts
patent: 3818969 (1974-06-01), Debs
patent: 3845803 (1974-11-01), Horst et al.
patent: 4202395 (1980-05-01), Heck
patent: 4212341 (1980-07-01), Fisher
patent: 4252172 (1981-02-01), Pommat et al.
patent: 4368770 (1983-01-01), Ulfhielm
patent: 4647488 (1987-03-01), Schnebly et al.

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