Cordless apparatus for operating blinds and shades

Details Cordless apparatus for operating blinds and shades Cordless apparatus for operating blinds and shades

1997-05-12

1998-08-04

Johnson, Blair

Paper making and fiber liberation

Processes and products

Non-fiber additive

160 8404, 160173R, 74127, E06B 930

Patent

active

057879532

ABSTRACT:
Apparatus for cordless operation of blinds and shades. A pair of actuators are in spiral engagement with a spiral wand coupled to a rail mechanism from which the blinds or shades depend. Each actuator is biased into driving engagement with the wand, one of the actuators rotating the wand in one direction when raised or lowered and the other actuator rotating the wand in the opposite direction when raised or lowered.

REFERENCES:
patent: 1422411 (1922-07-01), Bordick
patent: 1445133 (1923-02-01), Drake
patent: 1838957 (1931-12-01), Orawiec
patent: 2455434 (1948-12-01), Mikelson
patent: 4759398 (1988-07-01), Renee
patent: 4817698 (1989-04-01), Rossini et al.
patent: 5476132 (1995-12-01), Jacobson

Affiliated with

Also associated with

Rating

Cordless apparatus for operating blinds and shades does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Cordless apparatus for operating blinds and shades, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cordless apparatus for operating blinds and shades will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1167601