BE443017A - - Google Patents

Info

Publication number: BE443017A
Authority: BE; Belgium

Application number

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.)

1941-01-24

Publication of BE443017A publication Critical patent/BE443017A/xx

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H36/00—Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding
- H01H36/0006—Permanent magnet actuating reed switches
- H01H36/0046—Limit switches, also fail-safe operation or anti-tamper considerations
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/04—Supports for telephone transmitters or receivers
- H04M1/06—Hooks; Cradles
- H04M1/10—Hooks; Cradles associated with switches operated by magnetic effect due to proximity of receiver or hand-set

Landscapes

Engineering & Computer Science (AREA)
Signal Processing (AREA)
Switches That Are Operated By Magnetic Or Electric Fields (AREA)
Telephone Set Structure (AREA)

BE443017D 1941-01-24 BE443017A (ja)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US375717A US2322851A (en)	1941-01-24	1941-01-24	Magnetic switch hook

Publications (1)

Publication Number	Publication Date
BE443017A true BE443017A (ja)

Family

ID=23482018

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
BE443017D BE443017A (ja)	1941-01-24

Country Status (6)

Country	Link
US (1)	US2322851A (ja)
BE (1)	BE443017A (ja)
CH (1)	CH231797A (ja)
FR (1)	FR887174A (ja)
GB (1)	GB555527A (ja)
NL (1)	NL57098C (ja)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2431319A (en) *	1943-02-09	1947-11-25	Walter B Ellwood	Magnetic firing device
US2523297A (en) *	1945-08-02	1950-09-26	Charles E Hastings	Frequency meter
US2623128A (en) *	1946-03-15	1952-12-23	Automatic Telephone & Elect	Telephone instrument with magnetic handset latch
US2546647A (en) *	1946-08-01	1951-03-27	Automatic Elect Lab	Magnet operated sealed switchboard
US2672523A (en) *	1949-09-16	1954-03-16	Bell Telephone Labor Inc	Telephone subscriber
US2673252A (en) *	1949-09-28	1954-03-23	Automatic Elect Lab	Magnetic cradle switch
US2636933A (en) *	1949-11-21	1953-04-28	Allis Chalmers Mfg Co	Control system responsive to presence of magnetic materials
US2848572A (en) *	1957-03-06	1958-08-19	Bendix Aviat Corp	Electrical disconnect plug
US2912540A (en) *	1958-02-13	1959-11-10	American District Telegraph Co	Defeat resistant burglar alarm contact
US3005885A (en) *	1958-09-12	1961-10-24	Foxboro Co	Safety switch arrangements
US3009033A (en) *	1959-04-20	1961-11-14	Gen Electric	Limit switches
US3157747A (en) *	1960-05-10	1964-11-17	Bell Telephone Labor Inc	Automatic selecting switch
DE1149398B (de) *	1962-04-02	1963-05-30	Siemens Ag	Anordnung fuer einen Fernsprechhandapparat mit Ortsbatterie, vorzugsweise fuer einen Prueffernsprecher
DE1160019B (de) *	1962-05-05	1963-12-27	Telefonbau & Normalzeit Gmbh	Fernsprechteilnehmerstation mit Schutzrohrgabelumschalterkontakten
US3147819A (en) *	1963-06-13	1964-09-08	Timothy B Keleher	Seat belt control for ignition system
US3305805A (en) *	1963-11-14	1967-02-21	Tann David	Proximity switch
GB1038229A (en) *	1963-11-29	1966-08-10	Ass Elect Ind	Improvements relating to subscriber's telephone instruments
FR2401508A1 (fr) *	1977-06-27	1979-03-23	Commissariat Energie Atomique	Injecteur d'electrons pour generateur hyperfrequence
US4251694A (en) *	1979-08-16	1981-02-17	Western Electric Company, Inc.	Tone-ringing circuits and methods for telephone sets
DE2941220C2 (de) *	1979-10-11	1983-03-24	Krone Gmbh, 1000 Berlin	Elektronisch gesteuerter Gabelumschalter für fernmeldetechnische Geräte o.dgl.
EP0128500A3 (en) *	1983-06-14	1986-08-20	Telelogic, Inc.	Telephone with cradle having no moving parts
US4581490A (en) *	1983-12-22	1986-04-08	Richard Genender	Wall telephone assembly
US4675903A (en) *	1984-06-29	1987-06-23	Wang Laboratories, Inc.	Telephone handset assembly
US6289100B1 (en) *	1999-03-09	2001-09-11	Hubbell Incorporated	Communications station having hall effect device for controlling hookswitch operations
TWI577165B (zh) *	2015-11-10	2017-04-01	和碩聯合科技股份有限公司	電話裝置

0
- NL NL57098D patent/NL57098C/xx active
- BE BE443017D patent/BE443017A/xx unknown
1941
- 1941-01-24 US US375717A patent/US2322851A/en not_active Expired - Lifetime
- 1941-12-11 FR FR887174D patent/FR887174A/fr not_active Expired
1942
- 1942-03-09 CH CH231797D patent/CH231797A/de unknown
- 1942-03-28 GB GB4175/42A patent/GB555527A/en not_active Expired

Also Published As

Publication number	Publication date
US2322851A (en)	1943-06-29
NL57098C (ja)
FR887174A (fr)	1943-11-05
GB555527A (en)	1943-08-26
CH231797A (de)	1944-04-15

Publication	Publication Date	Title
BE442109A (ja)	1941-08-30
BE442850A (ja)
BE442867A (ja)
NL61323C (ja)
NL104498C (ja)
NL57098C (ja)
BE554136A (ja)
BE491139A (ja)
BE445016A (ja)
BE444990A (ja)
BE444370A (ja)
BE443437A (ja)
BE443410A (ja)	1942-01-31
BE443268A (ja)
BE443255A (ja)
BE443226A (ja)	1941-11-29
BE443220A (ja)	1941-11-29
BE443217A (ja)	1941-11-29
BE443214A (ja)
BE443150A (ja)	1941-11-29
BE443094A (ja)	1941-11-29
BE443029A (ja)
BE443016A (ja)	1941-11-29
BE442990A (ja)
BE442962A (ja)