发明名称 Spring assembly with helical coils of spring wire with unknotted ends
摘要 A spring assembly wherein there is a rectangular border wire and there are coils disposed in spaced, parallel rows within the border wire. The coils in the rows of coils lap and are connected by helices of wire. The helices of wire connect the adjacent rows of coils, and the coils adjacent the border wire are connected thereto by a helix of wire.
申请公布号 US4781360(A) 申请公布日期 1988.11.01
申请号 US19870129549 申请日期 1987.12.07
申请人 WEBSTER SPRING CO. INC. 发明人 RAMSEY, HENRY R.
分类号 A47C27/07;(IPC1-7):A47C23/02;F16F3/04 主分类号 A47C27/07
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