发明名称 |
PORTABLE SHELTER WITH ROLLING ELEMENT BEARINGS |
摘要 |
The present invention provides an improved portable shelter frame having upwardly extending support poles and linkage assemblies connecting the poles. Within the joints of the linkage assemblies are rolling element bearings to reduce joint friction and provide reinforcement support to the shelter frame. |
申请公布号 |
WO2004076778(A2) |
申请公布日期 |
2004.09.10 |
申请号 |
WO2004US05151 |
申请日期 |
2004.02.20 |
申请人 |
VARIFLEX, INC.;LOSI, RAYMOND., JR. |
发明人 |
LOSI, RAYMOND., JR. |
分类号 |
E04H15/50 |
主分类号 |
E04H15/50 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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