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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
---|---|
국제특허분류(IPC7판) |
|
출원번호 | US-0808159 (2015-07-24) |
등록번호 | US-9725940 (2017-08-08) |
발명자 / 주소 |
|
출원인 / 주소 |
|
인용정보 | 피인용 횟수 : 0 인용 특허 : 24 |
A hinge assembly that includes a closure member such as a door and a torsion bar that extends between hinge assemblies about which the door pivots so that the torsion bar becomes twisted when the door is moved between a closed position and an open position. The twisting of the torsion bar creates po
1. In a door assembly having a door and a door frame and a door hinge mechanism the improvement comprising: a torsion bar about which the door rotates between an open and a closed position wherein one end of the torsion bar is attached to the door frame so as not to rotate with respect to the door f
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