ZA74449B - Improvements in or relating to electric switches - Google Patents
Improvements in or relating to electric switchesInfo
- Publication number
- ZA74449B ZA74449B ZA740449A ZA74449A ZA74449B ZA 74449 B ZA74449 B ZA 74449B ZA 740449 A ZA740449 A ZA 740449A ZA 74449 A ZA74449 A ZA 74449A ZA 74449 B ZA74449 B ZA 74449B
- Authority
- ZA
- South Africa
- Prior art keywords
- relating
- electric switches
- switches
- electric
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
- H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
- H01H1/24—Contacts characterised by the manner in which co-operating contacts engage by abutting with resilient mounting
- H01H1/242—Contacts characterised by the manner in which co-operating contacts engage by abutting with resilient mounting the contact forming a part of a coil spring
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
- H01H1/36—Contacts characterised by the manner in which co-operating contacts engage by sliding
- H01H1/40—Contact mounted so that its contact-making surface is flush with adjoining insulation
- H01H1/403—Contacts forming part of a printed circuit
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB363673A GB1460021A (en) | 1973-01-24 | 1973-01-24 | Electric switches |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ZA74449B true ZA74449B (en) | 1974-12-24 |
Family
ID=9762063
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ZA740449A ZA74449B (en) | 1973-01-24 | 1974-01-22 | Improvements in or relating to electric switches |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3895203A (en) |
| JP (1) | JPS49109873A (en) |
| AU (1) | AU473387B2 (en) |
| DE (1) | DE2403108A1 (en) |
| GB (1) | GB1460021A (en) |
| SE (1) | SE390851B (en) |
| ZA (1) | ZA74449B (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4004121A (en) * | 1974-04-04 | 1977-01-18 | Mechanical Enterprises, Inc. | Electrical switch with wire beam spring contact closer |
| GB1555764A (en) * | 1975-08-22 | 1979-11-14 | Gen Electric Co Ltd | Push-botton swtich mechanismus |
| JPS52124483U (en) * | 1976-03-19 | 1977-09-21 | ||
| US4034177A (en) * | 1976-11-19 | 1977-07-05 | Burroughs Corporation | Plunger-actuated, lost motion switch with tactile feedback |
| EP0012279B1 (en) * | 1978-12-14 | 1982-07-07 | Siemens Aktiengesellschaft | Push-button switch, particularly for keyboards of typewriters and similar devices |
| DE3127053C2 (en) * | 1981-07-09 | 1983-07-21 | Vacuumschmelze Gmbh, 6450 Hanau | Sensor key for contactless generation of an electrical signal when a key is pressed |
| JPS6075929U (en) * | 1983-10-31 | 1985-05-28 | 株式会社ジエルコ | push button switch |
| FR2556512B1 (en) * | 1983-12-13 | 1986-12-26 | Itt Composants Instr | ELECTRIC SWITCHING DEVICE |
| US4600819A (en) * | 1985-03-08 | 1986-07-15 | Mechanical Enterprises, Inc. | Switch assembly |
| US4795865A (en) * | 1987-12-10 | 1989-01-03 | Delta Systems, Inc. | Safety switch for automatic de-activation of a motor vehicle |
| US4812604A (en) * | 1987-12-10 | 1989-03-14 | Delta Systems, Inc. | Torsion spring contact switch |
| US5221816A (en) * | 1991-09-09 | 1993-06-22 | Delta Systems, Inc. | Plunger switch |
| JP3757540B2 (en) * | 1996-11-08 | 2006-03-22 | 松下電工株式会社 | Push button switch |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2567421A (en) * | 1947-01-30 | 1951-09-11 | Bruno Martinuzzi | Push-button switch |
| US3214528A (en) * | 1963-12-16 | 1965-10-26 | Radio Frequency Lab Inc | Rotary electrical switch with movable spring contact structure |
| US3244847A (en) * | 1964-05-22 | 1966-04-05 | Navigation Computer Corp | Manually operated keyboard switch in a stationary mount with guided shaftway |
| AT266970B (en) * | 1967-04-28 | 1968-12-10 | Standard Telephon & Telegraph | Resilient electrical contact device |
| CH460119A (en) * | 1967-07-27 | 1968-07-31 | Baumer Electric Ag | Electric switch button |
| FR2102579A5 (en) * | 1970-08-10 | 1972-04-07 | Arvai T | |
| US3699296A (en) * | 1971-05-21 | 1972-10-17 | Ibm | Catastrophically buckling compression column switch and actuator |
| US3725907A (en) * | 1971-06-01 | 1973-04-03 | Texas Instruments Inc | Pushbutton keyboard system |
| US3697706A (en) * | 1971-06-23 | 1972-10-10 | Baldwin Co D H | Push type electric switch with contact post, movable coil spring contact and interposed non conductive plunger |
| US3767878A (en) * | 1972-09-21 | 1973-10-23 | Stackpole Component Co | Keyboard switch |
-
1973
- 1973-01-24 GB GB363673A patent/GB1460021A/en not_active Expired
-
1974
- 1974-01-18 AU AU64655/74A patent/AU473387B2/en not_active Expired
- 1974-01-22 US US435599A patent/US3895203A/en not_active Expired - Lifetime
- 1974-01-22 ZA ZA740449A patent/ZA74449B/en unknown
- 1974-01-23 SE SE7400858A patent/SE390851B/en unknown
- 1974-01-23 DE DE2403108A patent/DE2403108A1/en not_active Withdrawn
- 1974-01-24 JP JP49010588A patent/JPS49109873A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| JPS49109873A (en) | 1974-10-18 |
| SE390851B (en) | 1977-01-24 |
| US3895203A (en) | 1975-07-15 |
| GB1460021A (en) | 1976-12-31 |
| AU473387B2 (en) | 1976-06-17 |
| DE2403108A1 (en) | 1974-07-25 |
| AU6465574A (en) | 1975-07-24 |
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