发明名称 Helical staircase support
摘要 A staircase support for a flying staircase of helical construction requiring attachment to the dwelling only at an upper and lower end thereof is disclosed. The support comprises a bracket including a first vertical tube and a second vertical tube axially spaced from the first tube and a horizontal member which extends from an upper portion of the first tube to a lower portion of the second tube. A plurality of identical brackets are assembled with a first bracket second tube upper end abutting a second bracket first tube lower end. In a preferred embodiment an expandable sleeve slidingly engages the abutting tubes and is expanded to fixedly engage adjacent brackets.
申请公布号 US4296577(A) 申请公布日期 1981.10.27
申请号 US19790087040 申请日期 1979.10.22
申请人 SCHUETTE, HEINZ G. 发明人 SCHUETTE, HEINZ G.
分类号 E04F11/035;(IPC1-7):E04F11/00 主分类号 E04F11/035
代理机构 代理人
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