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1. 发明授权

US4757642A Self-closing sliding door system 失效
标题翻译：自闭式滑门系统
公开(公告)号：US4757642A
公开(公告)日：1988-07-19
申请号：US18714
申请日：1987-02-25
申请人： Michael D. Hahn
发明人： Michael D. Hahn
IPC分类号： E05F1/08 , E05D13/04
CPC分类号： E05F1/16 , E05D13/1276 , E05Y2201/482 , E05Y2900/132 , Y10S16/17 , Y10T16/60
摘要： For self-closing a sliding door, e.g. of a showcase, combinations of belts and sprockets, cables and pulleys, rods and springs and the like, which have proved difficult to construct, service and replace are replaced by one or more constant force springs associated with a spring-retention cavity or other spring retainer. This permits the doors to be easily removed for servicing and for improved access to the interior of the showcase. Upon door removal, no self-closing apparatus still links the door to the case. The parts are simple and easy to replace, few moving parts are involved and the system is applicable both for new construction and for retrofitting to existing cases.
摘要翻译：为了自动关闭滑动门，例如已经证明难以构造，维修和更换的带和链轮，电缆和滑轮，杆和弹簧等的组合由与弹簧保持腔或其它弹簧相关联的一个或多个恒力弹簧代替保持架。这样就可以方便地拆卸门，以便进行维修以及改进进入展示柜内部的通道。在门拆卸时，没有自动关闭装置仍将门连接到外壳。零部件简单易行，零件移动少，系统适用于新建和改装现场。

2. 发明授权

US5165831A Capscrew head markings for torque-angle tightening 失效
标题翻译： CAPSCREW头部标记扭矩角度加强
公开(公告)号：US5165831A
公开(公告)日：1992-11-24
申请号：US417907
申请日：1989-10-06
申请人： James H. Yager , Michael D. Hahn
发明人： James H. Yager , Michael D. Hahn
IPC分类号： F16B2/08 , F16B1/00 , F16B31/02 , F16B35/00
CPC分类号： F16B31/02 , F16B1/0071 , Y10S411/916 , Y10T403/20
摘要： A fastener which allows a user to easily utilize the Torque Angle Method to provide a predictable clamp load to a clamped element. The fastener includes an externally threaded shank portion, a torque receiving portion integrally connected on one end of the shank portion and a radially extending flange located between the shank portion and the torque receiving portion. The flange includes a pair of cut-out notches located on the peripheral edge of the flange which are formed prior to initial tightening of the fastener and are spaced apart at a predetermined angular distance to allow a user to utilize the Torque Angle method to provide predictable clamp load across a joint connection. Primarily, the method has three basic steps, first each of a plurality of fasteners is tightened to an intermediate torque, a mark is placed on the surface of the element to be clamped adjacent the leading one of the notches on the fastener and finally the fastener is rotated until the second notch of the pair is brought into alignment with the surface mark.

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