BE443017A - - Google Patents
Info
- Publication number
- BE443017A BE443017A BE443017DA BE443017A BE 443017 A BE443017 A BE 443017A BE 443017D A BE443017D A BE 443017DA BE 443017 A BE443017 A BE 443017A
- Authority
- BE
- Belgium
Links
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)
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 (US20100223739A1-20100909-C00025.png) |
Family
ID=23482018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE443017D BE443017A (US20100223739A1-20100909-C00025.png) | 1941-01-24 |
Country Status (6)
Families Citing this family (25)
| 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 |
|---|---|
| GB555527A (en) | 1943-08-26 |
| FR887174A (fr) | 1943-11-05 |
| US2322851A (en) | 1943-06-29 |
| NL57098C (US20100223739A1-20100909-C00025.png) | |
| CH231797A (de) | 1944-04-15 |
