US 8,281,645 B2Granted

Leak detection apparatus

OwnerKirk Drydeninventor

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Abstract

An apparatus and method for liquid leak detection includes first and second flexible members each constructed of an electrically conductive material that is in a normally open circuit state. Also included is a liquid wicking permeable surrounding sidewall that is positioned adjacent to the first and second flexible members, the liquid permeable surrounding sidewall is constructed of a non electrically conductive material. Operationally, the liquid wicking permeable surrounding sidewall becomes electrically conductive when a liquid is present in the liquid wicking permeable surrounding sidewall, facilitating the first and second flexible members to move to a closed circuit state that results in a perceptible output. Additionally, included is a liquid permeable planar web reinforcing element that is oriented adjacent to the liquid wicking permeable surrounding sidewall wherein the liquid permeable planar web reinforcing element is oppositely disposed of the first and second flexible members.

Claims13

Dependent claims

A leak detection apparatus for sensing presence of a liquid in an area, said leak detection apparatus comprising:

(a) a first flexible member having a first longitudinal axis, wherein said first flexible member is constructed of an electrically conductive material that is in a normally open circuit state;
(b) a second flexible member having a second longitudinal axis, wherein said second flexible member is constructed of an electrically conductive material that is in a normally open circuit state;
(c) a liquid wicking permeable surrounding sidewall that is about a radial axis of said liquid wicking permeable surrounding sidewall, said liquid wicking permeable surrounding sidewall is positioned adjacent to said first and second flexible members, said liquid wicking permeable surrounding sidewall is constructed of a non-electrically conductive material, wherein operationally said liquid wicking permeable surrounding sidewall becomes electrically conductive when the liquid is present in said liquid wicking permeable surrounding sidewall, facilitating said first and second flexible members to move from the normally open circuit state to a closed circuit state resulting in a perceptible output, said liquid wicking permeable surrounding sidewall is structurally formed into a frustroconical shape to partially encase an area defined by a liquid communication line, wherein said liquid wicking permeable surrounding sidewall frustroconical shape has a lengthwise axis and the liquid communication line has a longwise axis positioned such that said lengthwise axis and the longwise axis are substantially co-axial, and;
(d) a liquid permeable planar web reinforcing element that is oriented adjacent to said liquid wicking permeable surrounding sidewall wherein said liquid permeable planar web reinforcing element is oppositely disposed from said first and second flexible members, said liquid permeable planar web reinforcing element is structurally formed into a frustroconical shape to partially encase the area defined by the liquid communication line, wherein said liquid permeable planar web reinforcing element frustroconical shape has said lengthwise axis and the liquid communication line has the longwise axis positioned such that said lengthwise axis and the longwise axis are substantially co-axial, wherein operationally said adjacent liquid wicking permeable surrounding sidewall and said liquid permeable planar web reinforcing element frustroconical shapes help to direct the liquid toward said first and second flexible members.

1 more element

A leak detection apparatus for sensing presence of a liquid external to a liquid communication line having a liquid flow axis, said leak detection apparatus comprising:

(a) a first flexible member having a first longitudinal axis, wherein said first flexible member is constructed of an electrically conductive material that is in a normally open circuit state;
(b) a second flexible member having a second longitudinal axis, wherein said second flexible member is constructed of an electrically conductive material that is in a normally open circuit state;
(c) an atomized adhesive disposed upon said first and second flexible members;
(d) a sodium polyacrylate base material in granular form;
(e) a liquid wicking permeable surrounding sidewall that is formed about a radial axis of said liquid wicking permeable surrounding sidewall, said liquid wicking permeable surrounding sidewall is infused with said sodium polyacrylate base material, said liquid wicking permeable surrounding sidewall is positioned to encase a portion of said first and second flexible members by virtue of said adhesive disposed upon said first and second flexible members, said liquid wicking permeable surrounding sidewall is constructed of a non-electrically conductive material, wherein operationally said liquid wicking permeable surrounding sidewall becomes electrically conductive when the liquid is present in said liquid wicking permeable surrounding sidewall, facilitating said first and second flexible members to move from the normally open circuit state to a closed circuit state resulting in a perceptible output;
(f) an atomized adhesive disposed upon said liquid wicking permeable surrounding sidewall;
(g) a temperature sensitive adhesive;
(h) a means for removably engaging;
and
(i) a pair of liquid permeable planar web reinforcing elements that are positioned to sandwich said liquid wicking permeable surrounding sidewall by virtue of said adhesive disposed upon said liquid wicking permeable surrounding sidewall, wherein said liquid permeable planar web reinforcing elements each have a margin portion that extends beyond said liquid wicking permeable surrounding sidewall, wherein said margin portions are affixed to one another by virtue of said temperature sensitive adhesive, wherein said combined first and second flexible members, said surrounding sidewall, and said planar web reinforcing elements are formed into a frustroconical shape adjacent to the liquid communication line by virtue of said means for removably engaging that is disposed upon a planar web reinforcing element, with said radial axis and said liquid flow axis being substantially co-axial.

7 more elements

A method of using a leak detection apparatus for sensing presence of a liquid external to a liquid communication line having a liquid flow axis, comprising the steps of:

(a) providing a leak detection apparatus that includes a first flexible member having a first longitudinal axis, wherein said first flexible member is constructed of an electrically conductive material that is in a normally open circuit state, also included is a second flexible member having a second longitudinal axis, wherein said second flexible member is constructed of an electrically conductive material that is in a normally open circuit state, further included is an atomized adhesive disposed upon said first and second flexible members, continuing, included is a sodium polyacrylate base material in granular form, and a liquid wicking permeable surrounding sidewall that is formed about a radial axis of said liquid wicking permeable surrounding sidewall, said liquid wicking permeable surrounding sidewall is infused with said sodium polyacrylate base material, said liquid wicking permeable surrounding sidewall is positioned to encase a portion of said first and second flexible members by virtue of said adhesive disposed upon said first and second flexible members, said liquid wicking permeable surrounding sidewall is constructed of a non-electrically conductive material, wherein operationally said liquid wicking permeable surrounding sidewall becomes electrically conductive when the liquid is present in said liquid wicking permeable surrounding sidewall, facilitating said first and second flexible members to move from the normally open circuit state to a closed circuit state resulting in a perceptible output, further included is an atomized adhesive disposed upon said liquid wicking permeable surrounding sidewall, a temperature sensitive adhesive, a means for removably engaging, and a pair of liquid permeable planar web reinforcing elements that are positioned to sandwich said liquid wicking permeable surrounding sidewall by virtue of said adhesive disposed upon said liquid wicking permeable surrounding sidewall, wherein said liquid permeable planar web reinforcing elements each have a margin portion that extends beyond said liquid wicking permeable surrounding sidewall, wherein said margin portions are affixed to one another by virtue of said temperature sensitive adhesive;
(b) forming said combined first and second flexible members, said surrounding sidewall, and said planar web reinforcing elements into a frustroconical shape adjacent to the liquid communication line;
(c) positioning said frustroconical shape such that said radial axis and said liquid flow axis are substantially co-axial;
and
(d) attaching said pair of liquid permeable planar web reinforcing elements by virtue of said means for removably engaging that is disposed upon a planar web reinforcing element, for the purpose of retaining said frustroconical shape.

2 more elements

Dependencies are inferred from the claim text.