发明名称 |
Adjustable roof jack |
摘要 |
An adjustable roof jack comprising: a flange; a first cylinder having a first cylinder top portion being at an angle between 20 and 25 degrees and a first cylinder bottom portion, fixedly connected to the flange. There may be a second cylinder having a second cylinder top portion and a second cylinder bottom portion at an angle between 65 and 70 degrees. A second cylinder bottom fold is folded over a first cylinder fold to fixedly and rotationally connect at an angle between 20 and 25 degrees. A vent cap cylinder having a vent cap cylinder top portion and a vent cap cylinder bottom portion having at least one vent cap cylinder fold is folded over a second cylinder top fold to rotationally connect the vent cap cylinder to the second cylinder; and a vent cap assembly is fixedly attached to the vent cap cylinder top portion.
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申请公布号 |
US8534013(B2) |
申请公布日期 |
2013.09.17 |
申请号 |
US201213343994 |
申请日期 |
2012.01.05 |
申请人 |
RODRIGUEZ, JR. VENTURA S.;DOT METAL PRODUCTS |
发明人 |
RODRIGUEZ, JR. VENTURA S. |
分类号 |
E04D13/14;E04B7/00;E04D13/00 |
主分类号 |
E04D13/14 |
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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