发明授权
- 专利标题: Method of repairing a manhole chimney using a stretchable sleeve
- 专利标题(中): 使用可拉伸套筒修理人孔烟囱的方法
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申请号: US12571707申请日: 2009-10-01
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公开(公告)号: US08721216B2公开(公告)日: 2014-05-13
- 发明人: Larry W. Kiest, Jr. , Jason Bartlett , Thomas M. O'Sullivan, III , Raymond L. Greek , Timothy L. Back , Donald L. Betzold
- 申请人: Larry W. Kiest, Jr. , Jason Bartlett , Thomas M. O'Sullivan, III , Raymond L. Greek , Timothy L. Back , Donald L. Betzold
- 申请人地址: US IL Ottawa US MO Lamar
- 专利权人: LMK Enterprises, Inc.,O'Sullivan Trenchless Installation Services
- 当前专利权人: LMK Enterprises, Inc.,O'Sullivan Trenchless Installation Services
- 当前专利权人地址: US IL Ottawa US MO Lamar
- 代理机构: McKee, Voorhees & Sease, P.L.C.
- 主分类号: F16L55/162
- IPC分类号: F16L55/162
摘要:
A method of repairing and renewing a manhole chimney utilizes a circumferentially stretchable liner sleeve which is inserted into the manhole and pressed by an inflatable bladder into engagement with the walls of the manhole chimney. The sleeve is coated with an uncured resin, which is allowed to cure as the sleeve is pressed against the chimney walls, thereby attaching the sleeve to the walls of the manhole chimney. The stretchable sleeve eliminates air spaces between the sleeve and the chimney walls, and precludes formation of undesirable folds in the sleeve. The sleeve stretches circumferentially up to 150% of its unstretched diameter, while having a substantially unstretchable length.
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