发明授权
US4693623A Pressure-responsive valve for an applicator 失效
用于涂抹器的压力响应阀

Pressure-responsive valve for an applicator
摘要:
A pressure-responsive valve exhibiting unusual restoring force includes an elastically deformable diaphragm having a plurality of non-intersecting, non-meeting, separate arcuate slits, each slit having a base which is intersected by at least one other slit, and each slit being out of intersecting relation with its own base.
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