Motorized door opening device
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United States of America Patent
Stats
-
Oct 5, 2021
Grant Date -
Apr 2, 2020
app pub date -
May 9, 2017
filing date -
May 9, 2016
priority date (Note) -
In Force
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Importance
US Family Size
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Non-US Coverage
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Abstract
A motorized door opening device, including
- at least one wheel, configured to be lowered to a surface and forced thereagainst with a force sufficient to ensure friction between the wheel and the surface and to prevent slipping of the wheel relative to the surface;an electric motor including a rotor coupled to rotate the wheel;a wheel actuator, coupled between the door and the wheel, to lower the wheel to the surface in response to a wheel lowering signal; and control circuitry to signal the wheel actuator to lower the wheel by generating the wheel lowering signal and push down the wheel to create friction; and a door attachment member to attach the motor and the wheel actuator to a bottom part of the door;whereby rotation of the wheel after lowering of the wheel causes the wheel to rotate in contact with the surface and move the door.
First Claim
Family
- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
- MILBAT—GIVING QUALITY TO LIFE
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Oz-Shannon, Uriah | Kibbutz Saad, IL | 2 | 4 |
Plotnitzki, Nachman | Ganei-Tikva, IL | 2 | 4 |
Rabinowitz, Abraham Samuel | Givat Shmuel, IL | 2 | 9 |
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