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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
|
출원번호 | US-0230433 (1988-08-10) |
발명자 / 주소 |
|
출원인 / 주소 |
|
인용정보 | 피인용 횟수 : 22 인용 특허 : 0 |
A mechanical disk-type door closure wherein one end of the closure is connected to a door and the other end is pivotally connected to a door jam such that when the door pivots about its hinge. The closure includes a rod upon which a rack is formed to cause a pinion to rotate in one direction and whi
A door closure mechanism for a pivoted door which pivots about a pivot point comprising, a longitudinal rack member with one end pivotally attached to a door jam adjacent the said pivot point of said door and formed with a rack, a housing into which said rack member extends, said housing pivotally a
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