Magnetic encoder for powered window covering

Details Magnetic encoder for powered window covering Magnetic encoder for powered window covering

2005-08-02

2005-08-02

Leykin, Rita (Department: 2837)

Electricity: motive power systems

Automatic and/or with time-delay means

Movement, position, or limit-of-travel

C318S468000, C318S264000, C318S265000, C318S266000, C310S06800R, C310S077000, C310S152000, C310S154090, C310S156030

Reexamination Certificate

active

06924615

ABSTRACT:
A motor for turning the rod of an object such as a window covering is attached to an elongated ferromagnetic bar. Magnets are closely spaced from the bar, and as the bar rotates to cut the magnetic field lines, pickup coils generate signals that can be used to determine the direction and speed of rotation and also the position of the motor (and, hence, the position of the object being moved). The magnets brake the motor from turning under the weight of the object when the motor is deenergized.

REFERENCES:
patent: 3352349 (1967-11-01), Hennequin
patent: 4522244 (1985-06-01), Brolin
patent: 4623012 (1986-11-01), Rude et al.
patent: 4651940 (1987-03-01), Nakamura
patent: 5164896 (1992-11-01), Nagayasu
patent: 5184660 (1993-02-01), Jelic
patent: 5228491 (1993-07-01), Rude et al.
patent: 5228492 (1993-07-01), Jou
patent: 5540269 (1996-07-01), Plumer
patent: 5760558 (1998-06-01), Popat
patent: 5793174 (1998-08-01), Kovach et al.
patent: 5848634 (1998-12-01), Will et al.
patent: 6169349 (2001-01-01), Davenport
patent: 6181089 (2001-01-01), Kovach et al.
patent: 29509638 (1996-11-01), None
patent: 0381643 (1990-08-01), None
patent: 0859224 (1998-08-01), None
patent: 29028 (1983-02-01), None
patent: 109484 (1985-06-01), None
patent: 192987 (1989-08-01), None
patent: 363495 (1992-12-01), None

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