专利名称：SPRING FASTENER 发明人：BENGTSSON S,SW 申请号：US36716373
申请日：19730605
公开号：US3831225A
公开日：
19740827
专利内容由知识产权出版社提供
摘要：A spring fastener for connecting together separate layers of flexible sheet material, each of which is provided with a rigid annular eyelet. The spring fastener includes a plug-like body having a head at one end, a stop flange at the other end, and an intermediate flange therebetween. At each side of the intermediate flange there is a circumferential groove, a diametral slot extending axially from the head end to the stop flange. The fastener is molded from resilient plastic material and holds the eyelet in the groove adjacent to the stop flange with somewhat greater force than the eyelet in the other groove.
申请人：BENGTSSON S,SW
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