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公开(公告)号：US20230066225A1
公开(公告)日：2023-03-02
申请号：US17461327
申请日：2021-08-30
申请人： DETEC SYSTEMS LLC
发明人： David Vokey , Andrew J. Preiksa , Mark K. Bridges , Bryan McGough
摘要： A leak in the membrane of a generally horizontal roof support deck includes dividing the membrane into separate zones and locating a sensor to detect moisture underneath the membrane. A unique digital code address is assigned to sensor where inputs of the sensors are connected to a single power and signaling cable system using a daisy chain. The serial bus controller is to interrogate each of the sensor devices using the address to identify zones where moisture is detected. A transmitting antenna is provided at each sensor which is switched on when moisture is detected for detecting of the sensor from above the membrane by a utility locate device to confirm the location of the sensor.
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公开(公告)号：US20170130459A1
公开(公告)日：2017-05-11
申请号：US14937507
申请日：2015-11-10
申请人： Detec Systems LLC
发明人： David E. Vokey , Mark K. Bridges
CPC分类号： E04D13/006 , G01M3/165 , G01N27/048
摘要： Leaks in a roof membrane are detected by applying a grid of electrically conductive shielding elements on the upper surface separating the membrane into a plurality of zones and generating a potential difference between the elements and a conductive component such as the roof deck or a layer at the deck. In each zone a respective one of a plurality of sensor conductors is mounted separate from the shielding elements and an electrical potential difference is applied between the sensor and the conductive component such that, in the presence of a leak located within the zone, current flows between the sensor conductor and the conductive component through moisture at the leak for detection of the current or resistance indicative of a leak.
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公开(公告)号：US20230069325A1
公开(公告)日：2023-03-02
申请号：US17461345
申请日：2021-08-30
申请人： DETEC SYSTEMS LLC
发明人： David Vokey , Andrew J. Preiksa , Mark K. Bridges , Bryan McGough
摘要： A leak in the membrane of a generally horizontal roof support deck includes dividing the membrane into separate zones and locating a sensor to detect moisture underneath the membrane. A movable scanning device carried by a worker has a power supply antenna for supplying power by an electromagnetic wave to the sensor and the worker moves the scanning device to selected ones of the zones. At each selected zone the power supply antenna activates the sensor in the zone and the sensor to emits signals related to the moisture underneath the membrane as detected by the sensor device which are detected and recorded at the mobile scanning device.
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公开(公告)号：US09695593B2
公开(公告)日：2017-07-04
申请号：US14937507
申请日：2015-11-10
申请人： Detec Systems LLC
发明人： David E. Vokey , Mark K. Bridges
CPC分类号： E04D13/006 , G01M3/165 , G01N27/048
摘要： Leaks in a roof membrane are detected by applying a grid of electrically conductive shielding elements on the upper surface separating the membrane into a plurality of zones and generating a potential difference between the elements and a conductive component such as the roof deck or a layer at the deck. In each zone a respective one of a plurality of sensor conductors is mounted separate from the shielding elements and an electrical potential difference is applied between the sensor and the conductive component such that, in the presence of a leak located within the zone, current flows between the sensor conductor and the conductive component through moisture at the leak for detection of the current or resistance indicative of a leak.
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