GB782665A - Protecting devices for telephone apparatus - Google Patents
Protecting devices for telephone apparatusInfo
- Publication number
- GB782665A GB782665A GB6457/55A GB645755A GB782665A GB 782665 A GB782665 A GB 782665A GB 6457/55 A GB6457/55 A GB 6457/55A GB 645755 A GB645755 A GB 645755A GB 782665 A GB782665 A GB 782665A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cap
- layers
- contact member
- march
- pellet
- 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
Links
- 239000008188 pellet Substances 0.000 abstract 2
- 230000001681 protective effect Effects 0.000 abstract 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 abstract 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 abstract 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 abstract 1
- 229910052796 boron Inorganic materials 0.000 abstract 1
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 239000002131 composite material Substances 0.000 abstract 1
- 230000006835 compression Effects 0.000 abstract 1
- 238000007906 compression Methods 0.000 abstract 1
- 239000004020 conductor Substances 0.000 abstract 1
- 238000009792 diffusion process Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 239000012535 impurity Substances 0.000 abstract 1
- 239000004922 lacquer Substances 0.000 abstract 1
- 239000000155 melt Substances 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 238000013021 overheating Methods 0.000 abstract 1
- 230000002085 persistent effect Effects 0.000 abstract 1
- 229910052573 porcelain Inorganic materials 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 229910052703 rhodium Inorganic materials 0.000 abstract 1
- 239000010948 rhodium Substances 0.000 abstract 1
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 abstract 1
- 229910052710 silicon Inorganic materials 0.000 abstract 1
- 239000010703 silicon Substances 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/738—Interface circuits for coupling substations to external telephone lines
- H04M1/74—Interface circuits for coupling substations to external telephone lines with means for reducing interference; with means for reducing effects due to line faults
- H04M1/745—Protection devices or circuits for voltages surges on the line
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
- E04C5/06—Reinforcing elements of metal, e.g. with non-structural coatings of high bending resistance, i.e. of essentially three-dimensional extent, e.g. lattice girders
- E04C5/065—Light-weight girders, e.g. with precast parts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
- H01C7/10—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material voltage responsive, i.e. varistors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
- H01C7/10—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material voltage responsive, i.e. varistors
- H01C7/12—Overvoltage protection resistors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
-
- 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
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
- H02H9/044—Physical layout, materials not provided for elsewhere
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/738—Interface circuits for coupling substations to external telephone lines
- H04M1/74—Interface circuits for coupling substations to external telephone lines with means for reducing interference; with means for reducing effects due to line faults
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Power Engineering (AREA)
- Electromagnetism (AREA)
- Signal Processing (AREA)
- Ceramic Engineering (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Emergency Protection Circuit Devices (AREA)
- Fuses (AREA)
- Thermistors And Varistors (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US414332A US2896128A (en) | 1954-03-05 | 1954-03-05 | Lightning surge protecting apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB782665A true GB782665A (en) | 1957-09-11 |
Family
ID=23640994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB6457/55A Expired GB782665A (en) | 1954-03-05 | 1955-03-04 | Protecting devices for telephone apparatus |
Country Status (9)
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL278357A (US20080293856A1-20081127-C00150.png) * | 1961-07-12 | 1900-01-01 | ||
| DE1437387A1 (de) * | 1964-07-03 | 1968-11-28 | Danfoss As | UEberspannungs-Schutzvorrichtung an Fernsprechnetzleitungen |
| US3725613A (en) * | 1971-02-25 | 1973-04-03 | Rochester Tel Corp | Apparatus for protecting and testing telephone network |
| JPS5217216B2 (US20080293856A1-20081127-C00150.png) * | 1972-02-20 | 1977-05-13 | ||
| US3769460A (en) * | 1972-03-09 | 1973-10-30 | J Charles | Mobile home telephone terminal system |
| US3777219A (en) * | 1972-08-14 | 1973-12-04 | Gen Semiconductor Ind Inc | Electromagnetic pulse suppressor |
| US3851220A (en) * | 1972-09-15 | 1974-11-26 | J Charles | Modular fail-safe telephone station protector |
| US3863111A (en) * | 1973-06-29 | 1975-01-28 | Gen Electric | Polycrystalline varistor surge protective device for high frequency applications |
| US4447848A (en) * | 1982-05-10 | 1984-05-08 | Tii Industries Inc. | Telephone surge protector and housings therefor |
| US5224008A (en) * | 1991-06-25 | 1993-06-29 | Texas Instruments Incorporated | Surge protection device and system |
| US5781394A (en) * | 1997-03-10 | 1998-07-14 | Fiskars Inc. | Surge suppressing device |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1745690A (en) * | 1928-04-09 | 1930-02-04 | Edward C Pritchett | Means for preventing acoustic shock from a telephone receiver |
| GB551443A (en) * | 1941-08-19 | 1943-02-23 | Westinghouse Brake & Signal | Improvements relating to the protection of electrical apparatus from high voltage surges and the like |
| US2538177A (en) * | 1944-04-03 | 1951-01-16 | Ericsson Telefon Ab L M | Excess-voltage arrester |
| GB643646A (en) * | 1945-09-12 | 1950-09-27 | Ericsson Telefon Ab L M | Improvements in excess voltage protective arrangements for telephone apparatus |
| CA509126A (en) * | 1949-05-28 | 1955-01-11 | Western Electric Company, Incorporated | Semiconductor translating devices |
| BE500302A (US20080293856A1-20081127-C00150.png) * | 1949-11-30 | |||
| US2619518A (en) * | 1949-12-08 | 1952-11-25 | Bell Telephone Labor Inc | Cable terminal |
| US2680220A (en) * | 1950-06-09 | 1954-06-01 | Int Standard Electric Corp | Crystal diode and triode |
| NL167481C (nl) * | 1951-02-16 | Henkel Kgaa | Werkwijze voor het behandelen van aluminiumoppervlak- ken. | |
| US2655625A (en) * | 1952-04-26 | 1953-10-13 | Bell Telephone Labor Inc | Semiconductor circuit element |
| US2669635A (en) * | 1952-11-13 | 1954-02-16 | Bell Telephone Labor Inc | Semiconductive photoelectric transducer |
-
0
- BE BE536185D patent/BE536185A/xx unknown
-
1954
- 1954-03-05 US US414332A patent/US2896128A/en not_active Expired - Lifetime
- 1954-12-15 FR FR1118791D patent/FR1118791A/fr not_active Expired
-
1955
- 1955-01-19 DE DEW15780A patent/DE1040610B/de active Pending
- 1955-01-21 ES ES0219733A patent/ES219733A1/es not_active Expired
- 1955-02-01 JP JP400155A patent/JPS315017B1/ja active Pending
- 1955-02-11 DK DK47955AA patent/DK84373C/da active
- 1955-03-04 CH CH334853D patent/CH334853A/fr unknown
- 1955-03-04 GB GB6457/55A patent/GB782665A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR1118791A (fr) | 1956-06-11 |
| DK84373C (da) | 1958-02-10 |
| CH334853A (fr) | 1958-12-15 |
| JPS315017B1 (US20080293856A1-20081127-C00150.png) | 1956-06-26 |
| ES219733A1 (es) | 1956-01-01 |
| US2896128A (en) | 1959-07-21 |
| DE1040610B (de) | 1958-10-09 |
| BE536185A (US20080293856A1-20081127-C00150.png) | 1900-01-01 |
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| JPS4913109B1 (US20080293856A1-20081127-C00150.png) |
