Electricity: motive power systems – Plural – diverse or diversely controlled electric motors – Plural – diverse or diversely controlled sources of armature...
Reexamination Certificate
2006-06-06
2006-06-06
Leykin, Rita (Department: 2837)
Electricity: motive power systems
Plural, diverse or diversely controlled electric motors
Plural, diverse or diversely controlled sources of armature...
C318S106000, C049S013000, C049S014000, C049S028000
Reexamination Certificate
active
07057360
ABSTRACT:
A motor assembly for driving a foldable screen includes an inner tube, a motor device mounted in the inner tube and including a DC motor, an outer tube mounted around the inner tube, a control device, and a connecting device mounted to an end of the inner tube. A screen is mounted to the outer tube. The control device includes a power circuit connected to an external AC power source via a plug. The control device reduces a voltage from the external AC power source and rectifies current from the external AC power source. The control device generates a first DC power source for a circuit system and a second DC power source for driving the motor.
REFERENCES:
patent: 4042028 (1977-08-01), Ennes et al.
patent: 4110003 (1978-08-01), Zinn
patent: 4417185 (1983-11-01), Bullat
patent: 4427050 (1984-01-01), Toppen
patent: 4429729 (1984-02-01), Winslow
patent: 4513805 (1985-04-01), Mase
patent: 4523620 (1985-06-01), Mortellite
patent: 5793174 (1998-08-01), Kovach et al.
patent: 5990646 (1999-11-01), Kovach et al.
patent: 6057658 (2000-05-01), Kovach et al.
patent: 6794778 (2004-09-01), Walker et al.
patent: 2004/0162040 (2004-08-01), Ramus
patent: 2004/0217731 (2004-11-01), Walker
Baxley Charles E.
Leykin Rita
LandOfFree
Motor assembly for folding/unfolding foldable screen does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Motor assembly for folding/unfolding foldable screen, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Motor assembly for folding/unfolding foldable screen will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3655909