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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0901144 (1986-08-28) |
발명자 / 주소 |
|
인용정보 | 피인용 횟수 : 50 인용 특허 : 0 |
The automatic touch actuated door opener includes an elongated flexible tension member having one end connected to a door and the other end connected to a tension member take-up device. The door is biased to its closed position for maintaining tension in the tension member when the door is moved to
An automatic touch actuated door opener adapted for opening a door mounted for movement between open and closed positions and biased to the closed position thereof, comprising an elongated flexible tension member having one end adapted for connection to the door, tension member take-up means operati
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