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Publication numberUS1786843 A
Publication typeGrant
Publication dateDec 30, 1930
Filing dateOct 7, 1929
Priority dateOct 7, 1929
Publication numberUS 1786843 A, US 1786843A, US-A-1786843, US1786843 A, US1786843A
InventorsHedeby Hans N
Original AssigneeHedeby Hans N
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Leak detector
US 1786843 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

Dec. 30, 1930. H. N. HEDEBY 1,786,843

LEAK DETECTOR Filed Oct. 7. 1929 2 Sheets-Sheet 1 Inventor f/vzy fi eiegy A itorrey Dec. 30, 1930. H. N. H'EDEBY 1,786,843

LEAK DETECTOR Filed 001;. 7. 1929 2 Sheets-Sheet 2 Inventor A itomey Patented Dec. 30, 19 30 UNITED STATES PATENT OFFICE HANS 1\T. HEDEBY, or yonnesrown onro.

LEAK DETECTOR I Application filed October 7, 1929. Serial No.23973941.

The present invention appertains to new Figure 1 represents a pipe equippedwith the present invention and diagrammatically disclosing the connections between the electrical devices involved. 7

Figure 2 represents a top plan View of the 29 pipe attachment.

Figure 3 represents a fragmentary sectional View disclosing the attachment associated with a pipe.

Referring to the drawings, wherein like numerals designate like parts, it will be seen that numeral 5 denotes a pipe to which this invention'is to be secured. In carrying out,

the invention, an annulus 6 of some suitable di-electric niateral is provided and this an- 39 nulus is provided with a circumferentially extending shoulder 7 at its upperportion. The upper portion of the annulus is also formed to provide a trough 8 into which the escaping liquid from the pipe 5 may flow.

As is clearly shown in Figure 2, the annulus is preferably constructed of a pair of sections to facilitate theirapplication to the pipe A clamp band 9is employed to cir- I cumscribe thelower portion of the annulus and this band is constructed at its free end with a pair of ears 10-10 which assume a position in parallel relation to each other when the band is engaged around the annulus. 9

.A bolt 11 and nut 12 are employed for drawing the band '9 tightly against the sections of the annulus- Disposed within the trough 8 are the conductors 13 and 14 and as clearly shown, these conductors are secured to the sections of the annulus by staples 15 thus be seen that the liquid escapes from the which staples have their free ends anchored or imbeddedin the annulus.

As shownin Figure 1, one end of each conductor projects beyond the periphery of the annulus at jits. shoulder portion 7 while its opposite end is disposed through an eye let 16 and twisted as at17. V In conj unction with the aforementioned construction, aclock of electrical typeis shown in the drawings {and denoted-by nus;

ineral 18, while a multipleindicator panel 19 is also employed. This" panel is of the type provided with a plurality of lamp compartments and lenses covering'the same, each having indicating matter thereon, so that when the lamp'inthe compartmentis lighted,

the indicating matter will be visible...

It will nowbe observed that thelamp eachofthese compartments is to be connectedincircuit with the-conductors 13 and 14 770 v of one unit. By way gofenamp'le, the conductor ltshas a connection QOlwith one side of. the lamp in.,-one of the compartments, (in dicatefdfiSOl) while the opposite side of the lamp (not shown), is connected to the posi- 7 tive side of the battery 2l with the negative side of the battery connected to one side of the clock 18 through the jumper 22. As is also shown, a wire 23 extending from the opposite side of the electrical clock connects to each of the conductors 13 employed.

Additional wires 20 are connected to the conductors 14 of other circuit closing units of the same type shown in Figure l. It will pipe 5 and drips or flows down the pipe, the same'will flow into the trough 8 and when sufficient liquid has been collected to bridge the conductors 13 andll, the circuitwill 90, be completed with the designated lamp of the indicating board or panel 19 so'that the location of the particular leak may be readi-' 1y ascertained.

While the foregoing description sets forth the invention in specific terms, it is to be understood that various changes in the shape, size and materials may be resorted 'towithout departing from the spiritand scope of the invention as claimed hereinafter. 10a

Having thus described the invention, What I claim as new is:

1. A circuit closer of the type described comprising an annulus for circumscribing a liquid conduit, said annulus being constructed to provide a trough for collecting liquid escaping from the said conduit, and contacts mounted within the trough of the said annulus.

2. A circuit closer of the type described comprising a sectional annulus for disposition around a liquid conduit, clamp means for securing the annulus snugly to the pipe, and contacts on the said annulus adapted to be bridged by liquid escaping from the said conduit.

3. A circuit closer of the type described comprising an annulus divided into a pair of sections, a clamp band for circumscribing the annulus and snugly securing the same to a liquid conduit, said annulus being con structed to provide a trough, and a pair of conductors disposed within the trough and in spaced relation with respect to each other and being adapted to be bridged by liquid in the said trough of the annulus.

4:. A circuit closer of the type described comprising an annulus divided into a pair of sections, a clamp band for circumscribing the annulus and snugly securing the same to a liquid conduit, said annulus being constructed to provide a trough, and a pair of conductors disposed Within the trough and in spaced relation with respect to each other and being adapted to be bridged by liquid in the said trough of the annulus, said annulus being constructed of a di-electric material.

In testimony whereof I aflix my signature.

HANS N. HEDEBY.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2531159 *Apr 15, 1948Nov 21, 1950Rowell William GSystem for burner cutoff and signaling means upon tank leakage
US4468609 *Dec 1, 1981Aug 28, 1984Friedhelm SchmitzControl system for the detection of leaks in insulated pipes
US4598273 *Aug 16, 1984Jul 1, 1986Bryan Jr Bynum OLeak detection system for roofs
US5015958 *Jun 27, 1989May 14, 1991Raychem CorporationElongate sensors comprising conductive polymers, and methods and apparatus using such sensors
US5235286 *May 9, 1991Aug 10, 1993Raychem CorporationMethod for detecting and obtaining information about changers in variables
US5382909 *Jul 30, 1993Jan 17, 1995Raychem CorporationMethod for detecting and obtaining information about changes in variables
EP1262757A2 *May 28, 2002Dec 4, 2002SZENO Engineering Othmar KäslinApparatus for controlling liquid guiding pipes
WO1996022516A1 *Jan 17, 1995Jul 25, 1996Gerard JacquetSystem for sensing and locating water leaks
WO1997017500A1 *Sep 5, 1996May 15, 1997Jacquet GerardSystem for detecting water leaks and preventing water damage
Classifications
U.S. Classification200/61.5, 200/236, 200/193
International ClassificationG01M3/18, G01M3/16
Cooperative ClassificationG01M3/18
European ClassificationG01M3/18