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|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||016/235; 016/240; 016/245; 016/229; 016/301; 016/308; 016/361|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 5 인용 특허 : 19|
Apparatus for controlling various and different movements of a door, said apparatus having a door hinge assembly with a hinge pin having a plurality of bearing surfaces to reduce stress and wear on a hinge pin housing, a torque mechanism for pre-torquing and torquing a hinged door, a door leveling mechanism that operates at the top of the door while the door remains closed, and a semi-automated mechanism that holds the door 90 degrees open and releases the door for closing by said torque mechanism.
1. Apparatus for controlling movement of a hinged door having a square vertical bore on its hinge side with a square top opening and a square bottom opening and hinged on one side of a frame having a top, a bottom, and two sides all defining an opening closed by said hinged door and for torquing said hinged door when said hinged door is opened, comprising:(1) a door hinge pin assembly inserted in said square top opening of said hinged door, comprising:a hollow cylindrical housing member having a top end and a bottom end and with its top end formed with a...