发明申请
- 专利标题： FASTENERS AND SPACER RINGS THEREFOR
- 专利标题（中）： 紧固件和间隔圈
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申请号： US12447752申请日： 2007-10-11
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公开(公告)号： US20100135748A1公开(公告)日： 2010-06-03
- 发明人: John Wentworth Bucknell , Robert Wentworth Bucknell
- 申请人： John Wentworth Bucknell , Robert Wentworth Bucknell
- 申请人地址： AU AU Richlands, Queensland
- 专利权人： TECHNOFAST INDUSTRIES PTY LTD.
- 当前专利权人： TECHNOFAST INDUSTRIES PTY LTD.
- 当前专利权人地址： AU AU Richlands, Queensland
- 优先权： AU2006906043 20061031
- 国际申请： PCT/AU07/01550 WO 20071011
- 主分类号： F16B43/00
- IPC分类号： F16B43/00
摘要：
An axially expanding spacer (10) has respective first and second spacer rings (11,12) with complementary helical ramped faces (16,17) and abutment faces (18,19). By relative rotation of the spacer rings (11,12), the height of the spacer (10), between annular faces (14,15) can be expanded or contracted. Compression springs (20) between the abutment faces (18,19) urge the spacer (10) to its “expanded” configuration.
公开/授权文献
- US08328491B2 Fasteners and spacer rings therefor 公开/授权日：2012-12-11