US1008370A - Automatic fire-alarm. - Google Patents

Automatic fire-alarm. Download PDF

Info

Publication number
US1008370A
US1008370A US1909530809A US1008370A US 1008370 A US1008370 A US 1008370A US 1909530809 A US1909530809 A US 1909530809A US 1008370 A US1008370 A US 1008370A
Authority
US
Grant status
Grant
Patent type
Prior art keywords
alarm
cable
strands
conductors
wires
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
Inventor
Louis Robillot
Original Assignee
Louis Robillot
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Grant date

Links

Images

Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B11/00Communication cables or conductors
    • H01B11/02Cables with twisted pairs or quads
    • H01B11/04Cables with twisted pairs or quads with pairs or quads mutually positioned to reduce cross-talk

Description

L1 BOBILLOT.

AUTOMATIU FIRE ALARM.

APPLIGATION FILED 13110.1,1909- 1,008,370. Patented Nov. 14,1911. f l

www@ 11g-.1.

srw

ffm/ffm" Wmv/'W LOUIS BOILLOT, OFBESANCON, FRANCE.

AUTOMATIC FIRE-ALARM.

1,oos,37o.

Speoication of Letters Patent.

Patented Nov. 14, 1,911.

Application led December 1, 1909. Serial No. 530,809.

To all whom it may concern:

-zen of theRe ublic of France, No. 6 Square t. Amour,

in Automatic Fire-Alarms, of which the following is a specification.

Automatic fire alarms at present employed are usually contrivances dependent upon the expansion of metals or gases under the in- `fluence of heat, or upon the ready fusibility of certain fatty substances or metallic alloys.

These insulated contrivances, which should be installed in large numbers to aii'ord appreciable security, are connected to electric alarm contrivances, -by conductors which may be broken in case of lire, before the alarm devices have performed` their func-` tion. In addition these contrivances are frequently ineffective by reason of their tardy action.

The present ,invention has for its object the provision of an alarl'nwhich shall afford really eilicient protection to premises and buildings against fire, and relatesrspeciically to the construction of the cable ernployed in devices of this character. This alarm utilizes the destructive' action of fire and the expansive actions produced by heat to effect a contact between two insulated electric conductors, situated very near one another, whereof the insulating covering is destroyed almost instantaneously by -lames -the conductors being constructed and connected to an electric battery, and to electric alarm devices in a manner which will be described by reference to the accompanying drawing in whichz-- i y y Figure 1 is a diagrammatic representation of the installation, and r-Figs 2 and 3 are larger scale views of two examples of constructlon of a cable carrying bilar strands which constitute the chief element of this invention. Figs. 4 and 5 are transverse sectional views of complete cables of thert pes illustrated, respectively, in Figs. 2 an 3.

For the purpose of this invention an electric circuit comprises two conductors a, b, insulated from one another, and also insulated at one of their extremities a1, b1. At

i their. other extremities the two conductors i are connected, the'one at b2 to the positive Be it known that I, Louis Rornror, citi residing at. Besanon, France, have invented new and useful Improvements pole of an electric battery c, the other at az to the negative pole of the same battery through the medium of an indicator el, comprising the local circuit e, j of an electric bell system g. The indicator d and :he bell or bells g which are in series, are installed in places chosen so that they are under watch night and day. When any ame reaches the alarm circuit, contact between the two conductors a, b, is brought about by means of the arrangement described above, und the alarm is give l V Two return wires las', connected tothe two wires a, b, of the alarm circuit at their free ends a1, b1, are led to the place of observation, where they are joined to the two terminals of a junction piece j, 1:, which allows the effective condition of the circuit and the proper working capability of the alarm contrivance to be tested at any moment. The

indicator d has-as many indicating surfaces as there are alarm circuits in the establishment to be protected. A separate jtnction is employed for testing each of the 11n es.

consequence of its great flexibility, its strength, its small section and its lightness, the said electric cable alarm lendsitself to a multiplicity of combinations, and to' very varied applications to .installations fcr 4protection against fire. It may be applied in various other ways.

The new cable would advantageously be used as a double wire in rooms for all Intlar electric installations of low voltage, especially for telephone and bell. installations. The use of this cable, the price'o'f which is very small, would simplify installation and lessen the breakdowns and expenses of upkeep which are considerable items in connection with leads now in use. Thr twowire electric cable alarm can be equally7 well applied to electric apparatus for protection against burglary, since, as said above, the two threads whlch compose it make contact with one another, and can consequently cause the actuation of a bell, through the medium of an indicator, when the cable is cut by any instrument. One r-nn obtain complete security in respect cf lhis latter application, and also for protection against arson by adopting thc following form for the electric cable alarmlzv-As shown .in transverse section in Fig. 4, on a very much cnlarged scale, the new cablev is primarily composed of six wires of copper or other metal of a very small diameter, each being covered with a ver thin layer of silk thread or other insu ating material c', the wire being twisted together in pairs so as to form three bifilar strands. rI'hese three strands are located in three equidistant helical grooves m, n, o, formed 1n a wire p of Coppel` or other metal, and constituting the safety core of the cable. The cable thus formed is then covered with a thin layer of cotton thread or other soft material d', and finally with a tube e of metal of fusible allo The grooves` above referred to are of a depth at least as eat as, and preferably greater than, the iameter of these twisted strands, the purpose of this .construction being to hinder tampering with the strands, but should the strands be molested then owin to the fit thereof in the grooves, and the t 'n insulation around the strands it would be practically impossible to interfere with one strand without affectin the other and thus giving the alarm. or certain parts of installations, la flexible conductor could under the same conditions be vemployed, the metallic tubular protector being rep aced by a winding of tape.

The six conductors of the cable or of the flexible conductor alarm, distinguished by insulating coverings of different colors could be em loyed at need, to form one, two or three dou le wire circuits, of which each wire of the circuit will be composed of one or more elements by connecting in each bilar strand one element to one of the threads a of a circuit, and the other element to the second thread b of the circuit (Fig. According to the exampleabove, cable and flexible conductor alarms with two or four strands could also be constructed, by means of one or two strands formed of two insulated conductors twisted together, and located in one or two helical grooves in the metallic safety core.v Cables and ilexible conductors of the same type y could also be formed of eight or even more conductors by varying the number and size of the grooves in the core, and by insertin when needed several bitilar strands in eac of these grooves or by emplo ing as a safety core a metallic wire of su cient cross section to permit of any increase in the number of grooves if and when required.

The alarms described above have the great advantage of being unbreakable by tension, and being incapable of division by any In addition these cables or conductors give means without the alarm being given."

the warning signal very promptly under the action of a llame'.

. The metallic safety core, instead of being 'formed by a single grooved wire p (Fig. 2)

may be constructed, as shown in cross section in Fig. 3, of a plurality of spaced metallic wires 9, helically wound on a central metallic wire g, and between which are interposed the biiilar conductorsa/-b and h-i, forming the various electric circuits of the alarm. The auxiliary central and exterior metallic wires g 1', thus employed to form thevcarrier may be bare or insulated; they may be made of steel, iron, bronze, copper or of any other metal or alloy, but it is advantageous to employ, for this purpose, a metal or alloy of considerable hardness and tensile strength.

By simultaneousl windin around the central wire the bi lar stran s a-b, h-i, and the auxiliary exterior wires r arranged as described above, a cable is obtained of which the strands comprise the auxiliary metallic wires and the bilar conductor strands interposed. For exam le in the case of Fig. 3 which is that o an alarm cable of six conductors, there being three bifil'ar strands, the construction is that of a seven element cable composed of a central -auxiliary wire forrrling a core on which are helically wound three auxiliary wires and three betilar conducting strands,` the latter alternating with the former, that is to say, each of the bilar strands is interposed between two auxiliary wires. The cable is then covered with a layer of cotton thread or other soft material, d', and finally .with a flexible and fusible metallic tube e According to the latter type, cables and flexible conductors could be constructed with two, four, six, eight or even more conductors, the number of the auxiliary exterior wires bein varied, and if necessary, a plurality .of ilar strands being located in .each of the spaces formed between these wires, or an insulating central wire of a diameter greater than that of the bilar conducting strands and the auxiliary exterior wires can be emplo ed so as to admit of an increase at need 1n the number of biflar conducting strands and auxiliary wires within' the periphery of the cable.

lt goes without saying that the means of insulation between the wires a, b, which arealways close together in the alarm cirl cuit can be varied, and so also can the sys- ,tem of indicators and alarm signals which are interposed in the circuit.

I claim:

A cable of the character described comrising a carrier or support provided with fililicoidal grooves therein, a twisted twostrand conductor arranged in each of said grooves, each. strand of each conductor bename to this specication the presence of ing covered with a thin layer of insulating two subscribing witnesses. material and each of said helicoidal grooves being of a depth at least as great as the LOUIS BOBILLOT' i diameter of the twisted conductor disposed Witnesses:

therein. LUCIEN VINCENT,

In testimony whereof I have signed my E. JURAND.

US1008370A 1909-12-01 1909-12-01 Automatic fire-alarm. Expired - Lifetime US1008370A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US1008370A US1008370A (en) 1909-12-01 1909-12-01 Automatic fire-alarm.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US1008370A US1008370A (en) 1909-12-01 1909-12-01 Automatic fire-alarm.

Publications (1)

Publication Number Publication Date
US1008370A true US1008370A (en) 1911-11-14

Family

ID=3076681

Family Applications (1)

Application Number Title Priority Date Filing Date
US1008370A Expired - Lifetime US1008370A (en) 1909-12-01 1909-12-01 Automatic fire-alarm.

Country Status (1)

Country Link
US (1) US1008370A (en)

Cited By (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2584027A (en) * 1949-10-25 1952-01-29 John F Kendrick Drilling cable with insulated conductor
US2824199A (en) * 1955-04-04 1958-02-18 Acra Electric Corp Electrical heating element
US3291891A (en) * 1964-03-23 1966-12-13 Belden Mfg Co Shielded electric cables
US4181815A (en) * 1977-07-26 1980-01-01 Telefonaktiebolaget L M Ericsson Self-floating cable for marine operations
USRE32225E (en) * 1981-08-07 1986-08-12 Harvey Hubbell Incorporated Oil well cable
US5132488A (en) * 1991-02-21 1992-07-21 Northern Telecom Limited Electrical telecommunications cable
US6300573B1 (en) * 1999-07-12 2001-10-09 The Furukawa Electric Co., Ltd. Communication cable
US6596944B1 (en) 1997-04-22 2003-07-22 Cable Design Technologies, Inc. Enhanced data cable with cross-twist cabled core profile
US20040055779A1 (en) * 2002-09-24 2004-03-25 David Wiekhorst Communication wire
US20040149484A1 (en) * 2003-02-05 2004-08-05 William Clark Multi-pair communication cable using different twist lay lengths and pair proximity control
US20040228419A1 (en) * 2003-05-12 2004-11-18 Ba-Zhong Shen Non-systematic and non-linear PC-TCM (Parallel Concatenate Trellis coded modulation)
US20050034891A1 (en) * 2003-08-13 2005-02-17 Ekeberg Knut Ivar Flexible electrical elongated device suitable for service in a high mechanical load environment
US20050269125A1 (en) * 1997-04-22 2005-12-08 Belden Cdt Networking, Inc. Data cable with cross-twist cabled core profile
US7030321B2 (en) 2003-07-28 2006-04-18 Belden Cdt Networking, Inc. Skew adjusted data cable
US7157644B2 (en) 2004-12-16 2007-01-02 General Cable Technology Corporation Reduced alien crosstalk electrical cable with filler element
US7208683B2 (en) 2005-01-28 2007-04-24 Belden Technologies, Inc. Data cable for mechanically dynamic environments
US7238885B2 (en) 2004-12-16 2007-07-03 Panduit Corp. Reduced alien crosstalk electrical cable with filler element
US7244893B2 (en) 2003-06-11 2007-07-17 Belden Technologies, Inc. Cable including non-flammable micro-particles
US20070163800A1 (en) * 2005-12-09 2007-07-19 Clark William T Twisted pair cable having improved crosstalk isolation
US20070193769A1 (en) * 1997-04-22 2007-08-23 Clark William T Data cable with cross-twist cabled core profile
US7271344B1 (en) 2006-03-09 2007-09-18 Adc Telecommunications, Inc. Multi-pair cable with channeled jackets
US20070280611A1 (en) * 2006-04-11 2007-12-06 General Dynamics Advanced Grooved jacket for undersea cable and method for manufacturing the same
US7317163B2 (en) 2004-12-16 2008-01-08 General Cable Technology Corp. Reduced alien crosstalk electrical cable with filler element
US20080041609A1 (en) * 1996-04-09 2008-02-21 Gareis Galen M High performance data cable
US20090025958A1 (en) * 2002-09-24 2009-01-29 Adc Incorporated Communication wire
US20090078439A1 (en) * 2007-07-12 2009-03-26 David Wiekhorst Telecommunication wire with low dielectric constant insulator
US7511225B2 (en) 2002-09-24 2009-03-31 Adc Incorporated Communication wire
US20090173514A1 (en) * 2007-11-19 2009-07-09 Gareis Galen M Separator Spline and Cables Using Same
US20100000753A1 (en) * 2008-07-03 2010-01-07 Adc Telecommunications, Inc. Telecommunications Wire Having a Channeled Dielectric Insulator and Methods for Manufacturing the Same
US20100200269A1 (en) * 2009-02-11 2010-08-12 General Cable Technologies Corporation Separator for communication cable with shaped ends
US20100218973A1 (en) * 2009-01-30 2010-09-02 Camp Ii David P Separator for communication cable with geometric features
US20100263907A1 (en) * 2006-03-06 2010-10-21 Belden Technologies, Inc. Web for separating conductors in a communication cable
US20110005806A1 (en) * 2004-11-17 2011-01-13 Belden Cdt (Canada) Inc. High performance telecommunications cable
US20110061894A1 (en) * 2006-12-01 2011-03-17 Clerkin Thomas M Apparatus and method for forming wire
US20110095857A1 (en) * 2009-10-26 2011-04-28 Goto Denshi Co., Ltd. Electric wire for high frequency, high voltage and large current

Cited By (90)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2584027A (en) * 1949-10-25 1952-01-29 John F Kendrick Drilling cable with insulated conductor
US2824199A (en) * 1955-04-04 1958-02-18 Acra Electric Corp Electrical heating element
US3291891A (en) * 1964-03-23 1966-12-13 Belden Mfg Co Shielded electric cables
US4181815A (en) * 1977-07-26 1980-01-01 Telefonaktiebolaget L M Ericsson Self-floating cable for marine operations
USRE32225E (en) * 1981-08-07 1986-08-12 Harvey Hubbell Incorporated Oil well cable
US5132488A (en) * 1991-02-21 1992-07-21 Northern Telecom Limited Electrical telecommunications cable
US7977575B2 (en) 1996-04-09 2011-07-12 Belden Inc. High performance data cable
US20100096160A1 (en) * 1996-04-09 2010-04-22 Belden Technologies, Inc. High performance data cable
US8536455B2 (en) 1996-04-09 2013-09-17 Belden Inc. High performance data cable
US8497428B2 (en) 1996-04-09 2013-07-30 Belden Inc. High performance data cable
US20080041609A1 (en) * 1996-04-09 2008-02-21 Gareis Galen M High performance data cable
US7663061B2 (en) 1996-04-09 2010-02-16 Belden Technologies, Inc. High performance data cable
US8729394B2 (en) 1997-04-22 2014-05-20 Belden Inc. Enhanced data cable with cross-twist cabled core profile
US7405360B2 (en) 1997-04-22 2008-07-29 Belden Technologies, Inc. Data cable with cross-twist cabled core profile
US20090120664A1 (en) * 1997-04-22 2009-05-14 Belden Technologies, Inc. Data cable with cross-twist cabled core profile
US7696438B2 (en) 1997-04-22 2010-04-13 Belden Technologies, Inc. Data cable with cross-twist cabled core profile
US20050269125A1 (en) * 1997-04-22 2005-12-08 Belden Cdt Networking, Inc. Data cable with cross-twist cabled core profile
US7491888B2 (en) 1997-04-22 2009-02-17 Belden Technologies, Inc. Data cable with cross-twist cabled core profile
US6596944B1 (en) 1997-04-22 2003-07-22 Cable Design Technologies, Inc. Enhanced data cable with cross-twist cabled core profile
US7534964B2 (en) 1997-04-22 2009-05-19 Belden Technologies, Inc. Data cable with cross-twist cabled core profile
US7135641B2 (en) 1997-04-22 2006-11-14 Belden Technologies, Inc. Data cable with cross-twist cabled core profile
US7154043B2 (en) 1997-04-22 2006-12-26 Belden Technologies, Inc. Data cable with cross-twist cabled core profile
US20110155419A1 (en) * 1997-04-22 2011-06-30 Cable Design Technologies Inc. dba Mohawk/CDT Enhanced Data cable with cross-twist cabled core profile
US20100147550A1 (en) * 1997-04-22 2010-06-17 Belden Technologies, Inc. Data cable with striated jacket
US20070193769A1 (en) * 1997-04-22 2007-08-23 Clark William T Data cable with cross-twist cabled core profile
US7964797B2 (en) 1997-04-22 2011-06-21 Belden Inc. Data cable with striated jacket
US6300573B1 (en) * 1999-07-12 2001-10-09 The Furukawa Electric Co., Ltd. Communication cable
US7238886B2 (en) 2002-09-24 2007-07-03 Adc Incorporated Communication wire
US7759578B2 (en) 2002-09-24 2010-07-20 Adc Telecommunications, Inc. Communication wire
US7214880B2 (en) 2002-09-24 2007-05-08 Adc Incorporated Communication wire
US8237054B2 (en) 2002-09-24 2012-08-07 Adc Telecommunications, Inc. Communication wire
US8525030B2 (en) 2002-09-24 2013-09-03 Adc Telecommunications, Inc. Communication wire
US8664531B2 (en) 2002-09-24 2014-03-04 Adc Telecommunications, Inc. Communication wire
US20100078193A1 (en) * 2002-09-24 2010-04-01 ADC Incorporation Communication wire
US7511225B2 (en) 2002-09-24 2009-03-31 Adc Incorporated Communication wire
US20050167146A1 (en) * 2002-09-24 2005-08-04 Adc Incorporated Communication wire
US20080066944A1 (en) * 2002-09-24 2008-03-20 Adc Incorporated Communication wire
US20050167148A1 (en) * 2002-09-24 2005-08-04 Adc Incorporated Located Communication wire
US20040216913A1 (en) * 2002-09-24 2004-11-04 David Wiekhorst Communication wire
US9336928B2 (en) 2002-09-24 2016-05-10 Commscope Technologies Llc Communication wire
US20040055779A1 (en) * 2002-09-24 2004-03-25 David Wiekhorst Communication wire
US7560648B2 (en) 2002-09-24 2009-07-14 Adc Telecommunications, Inc Communication wire
US8624116B2 (en) 2002-09-24 2014-01-07 Adc Telecommunications, Inc. Communication wire
US7511221B2 (en) 2002-09-24 2009-03-31 Adc Incorporated Communication wire
US20090025958A1 (en) * 2002-09-24 2009-01-29 Adc Incorporated Communication wire
US20100132977A1 (en) * 2002-09-24 2010-06-03 Adc Telecommunications, Inc. Communication wire
US20060124343A1 (en) * 2003-02-05 2006-06-15 Belden Cdt Networking, Inc. Multi-pair communication cable using different twist lay lengths and pair proximity control
US20040149484A1 (en) * 2003-02-05 2004-08-05 William Clark Multi-pair communication cable using different twist lay lengths and pair proximity control
US7015397B2 (en) 2003-02-05 2006-03-21 Belden Cdt Networking, Inc. Multi-pair communication cable using different twist lay lengths and pair proximity control
US20040228419A1 (en) * 2003-05-12 2004-11-18 Ba-Zhong Shen Non-systematic and non-linear PC-TCM (Parallel Concatenate Trellis coded modulation)
US7244893B2 (en) 2003-06-11 2007-07-17 Belden Technologies, Inc. Cable including non-flammable micro-particles
US7271343B2 (en) 2003-07-28 2007-09-18 Belden Technologies, Inc. Skew adjusted data cable
US7030321B2 (en) 2003-07-28 2006-04-18 Belden Cdt Networking, Inc. Skew adjusted data cable
US6943300B2 (en) * 2003-08-13 2005-09-13 Nexans Flexible electrical elongated device suitable for service in a high mechanical load environment
EP1507269B1 (en) * 2003-08-13 2017-05-10 Nexans Flexible electrical elongated device suitable for service in a high mechanical load environment
US20050034891A1 (en) * 2003-08-13 2005-02-17 Ekeberg Knut Ivar Flexible electrical elongated device suitable for service in a high mechanical load environment
US8455762B2 (en) 2004-11-17 2013-06-04 Belden Cdt (Canada) Inc. High performance telecommunications cable
US20110005806A1 (en) * 2004-11-17 2011-01-13 Belden Cdt (Canada) Inc. High performance telecommunications cable
US7157644B2 (en) 2004-12-16 2007-01-02 General Cable Technology Corporation Reduced alien crosstalk electrical cable with filler element
US7238885B2 (en) 2004-12-16 2007-07-03 Panduit Corp. Reduced alien crosstalk electrical cable with filler element
US7612289B2 (en) 2004-12-16 2009-11-03 General Cable Technology Corporation Reduced alien crosstalk electrical cable with filler element
US7317163B2 (en) 2004-12-16 2008-01-08 General Cable Technology Corp. Reduced alien crosstalk electrical cable with filler element
US7317164B2 (en) 2004-12-16 2008-01-08 General Cable Technology Corp. Reduced alien crosstalk electrical cable with filler element
US7208683B2 (en) 2005-01-28 2007-04-24 Belden Technologies, Inc. Data cable for mechanically dynamic environments
US20070163800A1 (en) * 2005-12-09 2007-07-19 Clark William T Twisted pair cable having improved crosstalk isolation
US8198536B2 (en) 2005-12-09 2012-06-12 Belden Inc. Twisted pair cable having improved crosstalk isolation
US20090071691A1 (en) * 2005-12-09 2009-03-19 Belden Technologies, Inc. Twisted pair cable having improved crosstalk isolation
US7449638B2 (en) 2005-12-09 2008-11-11 Belden Technologies, Inc. Twisted pair cable having improved crosstalk isolation
US8030571B2 (en) 2006-03-06 2011-10-04 Belden Inc. Web for separating conductors in a communication cable
US20100263907A1 (en) * 2006-03-06 2010-10-21 Belden Technologies, Inc. Web for separating conductors in a communication cable
US7271344B1 (en) 2006-03-09 2007-09-18 Adc Telecommunications, Inc. Multi-pair cable with channeled jackets
US7629536B2 (en) 2006-03-09 2009-12-08 Adc Telecommunications, Inc. Multi-pair cable with channeled jackets
US20070280611A1 (en) * 2006-04-11 2007-12-06 General Dynamics Advanced Grooved jacket for undersea cable and method for manufacturing the same
US8826945B1 (en) * 2006-12-01 2014-09-09 Thomas M. Clerkin Apparatus and method for forming wire
US20110061894A1 (en) * 2006-12-01 2011-03-17 Clerkin Thomas M Apparatus and method for forming wire
US7816606B2 (en) 2007-07-12 2010-10-19 Adc Telecommunications, Inc. Telecommunication wire with low dielectric constant insulator
US20090078439A1 (en) * 2007-07-12 2009-03-26 David Wiekhorst Telecommunication wire with low dielectric constant insulator
US7897875B2 (en) 2007-11-19 2011-03-01 Belden Inc. Separator spline and cables using same
US20090173514A1 (en) * 2007-11-19 2009-07-09 Gareis Galen M Separator Spline and Cables Using Same
US9870846B2 (en) 2008-07-03 2018-01-16 Commscope Technologies Llc Telecommunications wire having a channeled dielectric insulator and methods for manufacturing the same
US8641844B2 (en) 2008-07-03 2014-02-04 Adc Telecommunications, Inc. Telecommunications wire having a channeled dielectric insulator and methods for manufacturing the same
US20100000753A1 (en) * 2008-07-03 2010-01-07 Adc Telecommunications, Inc. Telecommunications Wire Having a Channeled Dielectric Insulator and Methods for Manufacturing the Same
US8022302B2 (en) 2008-07-03 2011-09-20 ADS Telecommunications, Inc. Telecommunications wire having a channeled dielectric insulator and methods for manufacturing the same
US20100218973A1 (en) * 2009-01-30 2010-09-02 Camp Ii David P Separator for communication cable with geometric features
US8319104B2 (en) 2009-02-11 2012-11-27 General Cable Technologies Corporation Separator for communication cable with shaped ends
US9018530B2 (en) 2009-02-11 2015-04-28 General Cable Technologies Corporation Separator for communication cable with shaped ends
US20100200269A1 (en) * 2009-02-11 2010-08-12 General Cable Technologies Corporation Separator for communication cable with shaped ends
US8878068B2 (en) * 2009-10-26 2014-11-04 Goto Denshi Co., Ltd. Electric wire for high frequency, high voltage and large current
USRE46850E1 (en) * 2009-10-26 2018-05-15 Goto Denshi Co., Ltd. Electric wire for high frequency, high volume and large current
US20110095857A1 (en) * 2009-10-26 2011-04-28 Goto Denshi Co., Ltd. Electric wire for high frequency, high voltage and large current

Similar Documents

Publication Publication Date Title
US3482034A (en) Conductive tow cable
US3261908A (en) Composite aluminum electrical conductor cable
US3115542A (en) Submarine electric cables
US3594491A (en) Shielded cable having auxiliary signal conductors formed integral with shield
US5852402A (en) Intrusion detection system
US4816614A (en) High frequency attenuation cable
US5619016A (en) Communication cable for use in a plenum
US3155768A (en) Buoyant cable
US4317002A (en) Multi-core power cable
US3676576A (en) Multiconductor stranded remote-control cable
US6559437B1 (en) Fiber optic damage sensor for wire and cable
US3317353A (en) Thermocouple comprising intimately twisted wires
US3681514A (en) Electrical cable
US3778805A (en) Alarm utilizing pressure and temperature responsive switch
CN204130227U (en) Polyvinyl chloride insulated flame-retardant cable
US2912600A (en) Tamper protective system and cable for use therein
US5153381A (en) Metal clad cable and method of making
US4653851A (en) Fire resistant fiber optic cable
US3772454A (en) Torque balanced cable
US2581213A (en) Temperature responsive signaling and locating system
US2185944A (en) Fire-detecting cable
US514925A (en) Leaume
US3610808A (en) Area security cable comprising strain and heat-responsive network
US2344501A (en) Electric cable
US2133863A (en) Electric cable