| 发明名称 | Device for shifting one structure with respect to another | ||
| 摘要 | A device (10) for shifting one structure with respect to another, is disclosed. The device comprises a body (12) defining a cylinder, a core (14) within the cylinder and rotatable in the cylinder with respect to the body (12). A coil spring is connected between the body (12) and the core (14) and is wound or unwound as the core (14) is rotated in the cylinder. A compressible ring (48) is carried by the core (14) and is in frictional contact with the body. The ring (48) can be compressed by a nut (66) screwed onto a shaft (50) forming part of the core (14) so that the frictional resistance offered by the ring (48) to turning of the core (14) in the cylinder is increased. | ||
| 申请公布号 | US9261082(B2) | 申请公布日期 | 2016.02.16 |
| 申请号 | US201414303281 | 申请日期 | 2014.06.12 |
| 申请人 | POWER LOGIC SOUTH AFRICA (PTY) LTD | 发明人 | Mazzullo Raymond;Mazzullo Adrian;Van Zyl Brian;Strauf Bastian;Brear Nicholas |
| 分类号 | F03G1/08;F03G1/02;E05F1/16 | 主分类号 | F03G1/08 |
| 代理机构 | Tarter Krinsky & Drogin LLP | 代理人 | Tarter Krinsky & Drogin LLP |
| 主权项 | 1. A device for shifting one structure with respect to another, the device comprising a body defining a cylinder, a core within the cylinder and rotatable in the cylinder with respect to the body, and a coil spring connected between the body and the core and which is wound or unwound as the core is rotated in the cylinder, there being a compressible ring carried by one of the body and the core and in frictional contact with the other of the core and the body, and means for compressing said ring so that the frictional resistance offered by the ring to turning of the core in the cylinder is increased. | ||
| 地址 | Ottery ZA | ||