Fluid detection cable
AssigneeRaymond & Lae Engineering, Inc.
InventorsDonald A. Raymond, Donald M. Raymond
Life of this patent
Estimating the term…
Abstract
An elongated fluid detection cable is described for use in detecting the presence of fluid (e.g. water) in areas where fluid is not desired. The cable includes a non-conductive base and at least two conductive members (such as wires). The base is twisted about its longitudinal axis, and the two conductive members are protected from touching conductive surfaces. The cable is connected to a control system which will activate an alarm when fluid contacts the conductive members of the cable. In one system, the cable includes four conductive members.
Claims12
An elongated fluid detection cable comprising:
- (a) a non-conductive flexible base member having opposite side edges, wherein each said side edge includes a longitudinal recessed area extending along the length of said base member;
- (b) first and second elongated conductive members each of which has known electrical resistance and each of which is coated along its length with a non-conductive water-insoluble liquid pervious coating;
- wherein said conductive members are positioned respectively in one of said recessed areas in said base member;
- wherein said base member is twisted about its longitudinal axis.
An elongated fluid detection cable comprising:
- (a) a non-conductive flexible base member having opposite side edges, wherein each said side edge includes a longitudinal recessed area extending along the length of said base member;
- (b) first and second elongated conductive members each of which has known electrical resistance and each of which is coated along its length with a conductive water-insoluble polymer;
- wherein said conductive members are positioned respectively in one of said recessed areas in said base member;
- wherein said base member is twisted about its longitudinal axis.
Dependencies are inferred from the claim text.