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Automatic door operator including electronic travel detection

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • H02K-027/30
출원번호 US-0496796 (1990-03-22)
발명자 / 주소
  • Duhame Dean (Roseville MI)
출원인 / 주소
  • Stanley Home Automation (Novi MI 02)
인용정보 피인용 횟수 : 62  인용 특허 : 0

초록

The present invention is an automatic door operator which includes an obstruction detector for at least stopping the motor when the detected motor speed indicates a motor torque greater than the selected closing torque limit while closing the door, and for at least stopping the motor when the detect

대표청구항

An automatic door operator for controlling a motor coupled for closing and opening a door, said automatic door operator comprising: a motor speed detector coupled to the motor for detecting the speed of the motor; means for independently setting opening and closing torque limits by a user including

이 특허를 인용한 특허 (62)

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  56. Stamm,Stephen J.; Faulkner,William E.; Argys,Gregory P., System and method for testing media device doors.
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  58. Mullet Willis J. ; Rodriguez Yan, System and related methods for detecting an obstruction in the path of a garage door controlled by an open-loop operator.
  59. Mullet Willis J. ; Rodriguez Yan ; Kyle Donald B., System and related methods for detecting and measuring the operational parameters of a garage door utilizing a lift cable system.
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