发明名称 |
Spring core having border wire with generally rectangular cross-section |
摘要 |
A bedding or seating product comprising a spring core including at least one border wire and a plurality of coil springs. Each of the border wires is generally rectangular in cross-section to reduce wire costs without compromising beam strength of the border wire. Each of the coil springs may be made of a single piece of wire having a central spiral portion defining a central spring axis and terminating at opposed ends with upper and lower end turns. The coil springs may be arranged in side-by-side rows and columns and be connected with each other at the upper and lower end turns by helical lacing wires.
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申请公布号 |
US8490232(B2) |
申请公布日期 |
2013.07.23 |
申请号 |
US20100821754 |
申请日期 |
2010.06.23 |
申请人 |
HAFFNER DAVID S.;HULL JOHN E.;MONTAGUE STEVEN M.;RICHMOND DARRELL A.;WELLS THOMAS W.;L&P PROPERTY MANAGEMENT COMPANY |
发明人 |
HAFFNER DAVID S.;HULL JOHN E.;MONTAGUE STEVEN M.;RICHMOND DARRELL A.;WELLS THOMAS W. |
分类号 |
A47C23/04 |
主分类号 |
A47C23/04 |
代理机构 |
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代理人 |
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地址 |
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