[go: up one dir, main page]

GB1435641A - Protective device for line connectors for communications circuit - Google Patents

Protective device for line connectors for communications circuit

Info

Publication number
GB1435641A
GB1435641A GB615774A GB615774A GB1435641A GB 1435641 A GB1435641 A GB 1435641A GB 615774 A GB615774 A GB 615774A GB 615774 A GB615774 A GB 615774A GB 1435641 A GB1435641 A GB 1435641A
Authority
GB
United Kingdom
Prior art keywords
contact
arcing
solder
bobbin
separated
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
Application number
GB615774A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Reliable Electric Co
Original Assignee
Reliable Electric Co
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
Application filed by Reliable Electric Co filed Critical Reliable Electric Co
Publication of GB1435641A publication Critical patent/GB1435641A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
    • H01T1/00—Details of spark gaps
    • H01T1/14—Means structurally associated with spark gap for protecting it against overload or for disconnecting it in case of failure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
    • H01H85/02—Details
    • H01H85/44—Structural association with a spark-gap arrester

Landscapes

  • Fuses (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Emergency Protection Circuit Devices (AREA)

Abstract

1435641 Fusible protector RELIABLE ELECTRIC CO 11 Feb 1974 [9 March 1973] 06157/74 Heading H2G A protective device comprises contacts 35, 40 which are grounded when solder 76 is melted either by an auxiliary heater 79 in overcurrent conditions or by prolonged arcing across gap 74 to ground in series with the solder 76 in overvoltage conditions. The device also comprises a representative pair of terminal pins 25, 29 in a dielectric plastics base 15, said pins electrically and mechanically joined to flat spring contact 35 and contact 40 respectively. These contacts are normally joined in series through end 80, metal bobbin 62, heating coil 79 which connects the lower disc 63 of the metal bobbin to the metal ring 75, and end 77. Ring 75 is separated from the bobbin shaft by an insulator 73. The arcing circuit comprises in series the ground pin 27, leg 48, strip 45, conducting cup 64 enclosing carbon blocks 70, 68 separated by the arc gap 74, copper cap 84, metal cylinder 82, solder 76 thence through the bobbin direct to contact 35 or through winding 79 to contact 40. The two carbon blocks 68, 70 are separated by an insulating member 72 and gap 74 is designed to requirements. Under persistent arcing conditions solder 76 melts and the spring action of contact 35 pushes the bobbin assembly on to the turned lip 69 of the grounded cup 64. End 77 of contact 40 maintains sliding contact with ring 75 (Fig. 5, not shown). It is stated that arcing of short duration is insufficient to melt solder 76. In high current conditions arcing need not necessarily occur, in which case solder 76 is melted by heat from coil 79. Conducting cup 64 is separated from contact 35 by their dielectric tape strip 52, which may be of a type that melts when arcing occurs. In this case, contact 35 is directly grounded. Two sets of protective devices are on the same base 15 (Fig. 3, not shown) with insulating sleeving 66 to prevent arcing between sets. The dummy pin 28 ensures single-orientation insertion into a communication line circuit. The unit has a dielectric plastics housing 16.
GB615774A 1973-03-09 1974-02-11 Protective device for line connectors for communications circuit Expired GB1435641A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00339928A US3818271A (en) 1973-03-09 1973-03-09 Line connector for a communications circuit

Publications (1)

Publication Number Publication Date
GB1435641A true GB1435641A (en) 1976-05-12

Family

ID=23331209

Family Applications (1)

Application Number Title Priority Date Filing Date
GB615774A Expired GB1435641A (en) 1973-03-09 1974-02-11 Protective device for line connectors for communications circuit

Country Status (12)

Country Link
US (1) US3818271A (en)
JP (1) JPS49125836A (en)
AR (1) AR199606A1 (en)
BR (1) BR7401788D0 (en)
CA (1) CA1005515A (en)
DE (1) DE2406769A1 (en)
ES (1) ES424065A1 (en)
FR (1) FR2220907B3 (en)
GB (1) GB1435641A (en)
IT (1) IT1003678B (en)
SE (1) SE398576B (en)
ZA (1) ZA74795B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1979000660A1 (en) * 1978-02-24 1979-09-06 G Coren Clip-on protector

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3936785A (en) * 1974-04-01 1976-02-03 Cook Electric Company Gas tube arrester subassembly
US4004263A (en) * 1975-06-09 1977-01-18 Porta Systems Corporation Protector module for telephone systems
US4062053A (en) * 1975-12-22 1977-12-06 Cook Electric Company Protector module
US4096541A (en) * 1976-02-13 1978-06-20 Etat Francaise Miniature lightning protector
US4128855A (en) * 1977-04-18 1978-12-05 Reliable Electric Company Surge arrester
US4168515A (en) * 1978-02-23 1979-09-18 Reliable Electric Company Line protector for a communications circuit
US4215381A (en) * 1978-09-25 1980-07-29 Bell Telephone Laboratories, Incorporated Protector module for telephone circuits
US4307430A (en) * 1979-09-26 1981-12-22 Bell Telephone Laboratories, Incorporated Protector device for telecommunications circuits
DE3412421A1 (en) * 1984-04-03 1985-10-03 Siemens AG, 1000 Berlin und 8000 München PROTECTIVE ELEMENT FOR DISTRIBUTORS
US4814941A (en) * 1984-06-08 1989-03-21 Steelcase Inc. Power receptacle and nested line conditioner arrangement
US4817270A (en) * 1986-04-21 1989-04-04 Northern Telecom Limited Method of manufacturing a heat coil assembly for a protector unit
US4901188A (en) * 1988-12-30 1990-02-13 Reliance Comm/Tec Corporation Line protector with spring
FR2643504A1 (en) * 1989-02-23 1990-08-24 Mars Actel LINE PROTECTION MODULE, WITH A PARAFOUDRE, IN PARTICULAR FOR A TELEPHONE CONNECTION BLOCK
DE4026004A1 (en) * 1990-08-14 1992-02-20 Krone Ag PROTECTIVE CIRCUIT AND PROTECTIVE PLUG IN TELECOMMUNICATION SYSTEMS
US5296646A (en) * 1992-04-03 1994-03-22 The Whitaker Corporation Protector module for telephone line junction box
US5317474A (en) * 1992-05-08 1994-05-31 The Whitaker Corporation Module for telephone line conductor pair having single protector unit
US5751533A (en) * 1996-02-01 1998-05-12 Reltec Corporation Cup and diode assembly for overvoltage protectors and communications lines
US5910877A (en) * 1997-11-17 1999-06-08 Reltec Corporation Line protector for a communication circuit
GB2520566A (en) * 2013-11-26 2015-05-27 Dynex Semiconductor Ltd Fail Safe Switch
CZ2017248A3 (en) * 2017-05-04 2018-07-04 Saltek S.R.O. A voltage limiter with a short-circuit device

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3743888A (en) * 1972-08-24 1973-07-03 Reliable Electric Co Line protector for a communication circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1979000660A1 (en) * 1978-02-24 1979-09-06 G Coren Clip-on protector

Also Published As

Publication number Publication date
DE2406769A1 (en) 1974-09-19
CA1005515A (en) 1977-02-15
SE398576B (en) 1977-12-27
US3818271A (en) 1974-06-18
ES424065A1 (en) 1976-05-16
ZA74795B (en) 1974-12-24
JPS49125836A (en) 1974-12-02
BR7401788D0 (en) 1974-11-05
AU6578674A (en) 1975-08-21
FR2220907B3 (en) 1976-12-17
AR199606A1 (en) 1974-09-13
IT1003678B (en) 1976-06-10
FR2220907A1 (en) 1974-10-04

Similar Documents

Publication Publication Date Title
GB1435641A (en) Protective device for line connectors for communications circuit
GB1458738A (en) Line protectors for communications circuits
US3975664A (en) Line protector for communication circuit
GB1415955A (en) Line protectors for communications circuits
US3896343A (en) Heat-operated short-circuiting arrangements
US3254181A (en) Mounting having short circuit means for communication line protector
US3281625A (en) Over-voltage protection techniques
GB2179508B (en) Fuse for an alternating current power circuit
US4168515A (en) Line protector for a communications circuit
US4733325A (en) Electrical protective devices
GB974489A (en) Slow blowing fuse
GB1383578A (en) Line protection for electric circuits
US4527215A (en) Valve type voltage arrester device
US4188561A (en) Station protector spark gap applique
US2724793A (en) Protector
US5195015A (en) Line protector for a communications circuit
US4458288A (en) Electrical protective devices
US4434449A (en) Protector unit for telecommunications circuits
US4326231A (en) Clip-on protector
US4191987A (en) Clip-on protector
US4069509A (en) Three element gas tube protector module
US4317153A (en) Clip-on protector
US4380036A (en) Clip-on protector
US3887847A (en) Glow discharge starter switch
US2271573A (en) Lightning protector

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee