发明名称 |
Method and apparatus to detect and locate damage and breaches in roof membranes |
摘要 |
A leak in a membrane on top of a horizontal roof deck is located by a manually operable carriage which is swept over the upper surface of the membrane on the roof deck. A measuring and switching circuit generates a voltage having a positive attached to the roof deck and a negative attached to conductive brushes on the carriage. The brushes are arranged to form an outer peripheral contact with an inner contact inside the outer contact. Thus the presence of a leak is detected by the outer set of conductive brushes at distance from the leak and by the inner conductive brush when directly over the leakage site.
|
申请公布号 |
US7554345(B2) |
申请公布日期 |
2009.06.30 |
申请号 |
US20070949437 |
申请日期 |
2007.12.03 |
申请人 |
DETEC SYSTEMS LLC |
发明人 |
VOKEY DAVID E. |
分类号 |
G01R27/08;G01R31/08;G08B21/00 |
主分类号 |
G01R27/08 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|