GB419917A - Improvements in snap action electric switches - Google Patents
Improvements in snap action electric switchesInfo
- Publication number
- GB419917A GB419917A GB7916/34A GB791634A GB419917A GB 419917 A GB419917 A GB 419917A GB 7916/34 A GB7916/34 A GB 7916/34A GB 791634 A GB791634 A GB 791634A GB 419917 A GB419917 A GB 419917A
- Authority
- GB
- United Kingdom
- Prior art keywords
- spring
- free
- snap
- plunger
- limbs
- 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
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/02—Details
- H01H13/26—Snap-action arrangements depending upon deformation of elastic members
- H01H13/36—Snap-action arrangements depending upon deformation of elastic members using flexing of blade springs
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T74/00—Machine element or mechanism
- Y10T74/18—Mechanical movements
- Y10T74/18888—Reciprocating to or from oscillating
- Y10T74/18896—Snap action
- Y10T74/18904—Plate spring
Landscapes
- Push-Button Switches (AREA)
- Tumbler Switches (AREA)
Abstract
419,917. Snap -- action switches. BURGESS LABORATORIES, Inc., C. F., Madison, Wisconsin, U.S.A.-(Assignees of McGall, P. K. ; 413, Berwick Street, Orange, New Jersey, U.S.A.) March 13, 1934, No. 7916. Convention date, March 29, 1933. [Class 38 (v).] A snap - action switch comprises a leafspring 12 of the form shown in Fig. 2 supported at one end in cantilever fashion by a screw 16. The spring is formed with side arms 20 21 which are crimped at 210 and have the free ends fulcrumed at 23 in the ends of a U-shaped member 14 between the limbs of which the spring 12 is free to move. The free end of spring 12 is provided with a heavy contact bar 22 free to move between fixed stops 24, 25, either or both of which may be contacts. On depressing a plunger 15, the left hand part of spring 12 is depressed until it moves across the pivots 23 when the limbs 20, 21, acting in compression, cause the contact 22 to snap downwards. On release of plunger 15 the spring 12 returns due to its own resiliency. In modifications, the side arms 20, 21 are simple bowed springs in compression and may be formed of separate strips clamped to the strip 12 by the contact bar. The switch may also be operated by a pivoted stirrup carried on the outside of the casing and engaging the operating plunger.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US663280A US1960020A (en) | 1933-03-29 | 1933-03-29 | Snap switch |
Publications (1)
Publication Number | Publication Date |
---|---|
GB419917A true GB419917A (en) | 1934-11-21 |
Family
ID=24661164
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB7916/34A Expired GB419917A (en) | 1933-03-29 | 1934-03-13 | Improvements in snap action electric switches |
Country Status (2)
Country | Link |
---|---|
US (1) | US1960020A (en) |
GB (1) | GB419917A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE756796C (en) * | 1939-04-19 | 1952-04-21 | Landis & Gyr Ag | Electrical switch with a movable contact element in the form of a stiffened leaf spring lamella that tilts over a short distance |
DE865329C (en) * | 1946-07-23 | 1953-02-02 | Landis & Gyr Ag | Toggle switch |
DE975370C (en) * | 1942-08-17 | 1961-11-16 | Siemens Ag | Bimetal relay for monitoring multi-phase consumers |
Families Citing this family (58)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2750802A (en) * | 1956-06-19 | Alternate action mechanism | ||
US2422471A (en) * | 1941-04-26 | 1947-06-17 | Honeywell Regulator Co | Safety mechanism |
US2417652A (en) * | 1943-10-04 | 1947-03-18 | Robertshaw Thermostat Co | Snap-action device |
US2418831A (en) * | 1943-12-09 | 1947-04-15 | Photoswitch Inc | Electric switch |
US2486365A (en) * | 1943-12-23 | 1949-10-25 | Casco Products Corp | Thermostatic switch |
US2468673A (en) * | 1944-09-25 | 1949-04-26 | First Ind Corp | Switch operating mechanism |
US2579496A (en) * | 1944-10-17 | 1951-12-25 | William D Huston | Switch arrangement on phonograph pickup |
US2448273A (en) * | 1944-12-11 | 1948-08-31 | Gen Motors Corp | Control |
US2480495A (en) * | 1945-02-22 | 1949-08-30 | Acrotec Corp | Pressure actuated switch |
NL70471C (en) * | 1945-06-26 | 1900-01-01 | ||
US2468512A (en) * | 1945-08-30 | 1949-04-26 | First Ind Corp | Switch mechanism |
US2507065A (en) * | 1945-11-14 | 1950-05-09 | Walter C Trautman | Pressure control switch |
US2442456A (en) * | 1945-11-26 | 1948-06-01 | Clary Multiplier Corp | Governor |
US2495349A (en) * | 1946-03-04 | 1950-01-24 | First Ind Corp | Snap acting device |
US2469217A (en) * | 1946-04-17 | 1949-05-03 | Gen Electric | Snap-action thermostatic switch |
US2458752A (en) * | 1946-04-18 | 1949-01-11 | Bristol Company | Tappet-actuating member |
US2444495A (en) * | 1946-04-18 | 1948-07-06 | Bristol Company | Tappet-actuating member |
US2469686A (en) * | 1946-05-06 | 1949-05-10 | First Ind Corp | Gauging switch |
US2569776A (en) * | 1946-08-21 | 1951-10-02 | Mcquay Norris Mfg Co | Electric switch |
US2502326A (en) * | 1947-01-10 | 1950-03-28 | Magnavox Co | Pressure operated switch |
US2541370A (en) * | 1947-01-10 | 1951-02-13 | Magnavox Co | Pressure operated switch |
US2600564A (en) * | 1947-11-17 | 1952-06-17 | Honeywell Regulator Co | Snap action device |
US2544730A (en) * | 1947-11-22 | 1951-03-13 | Elizabeth P Keiper | Electric rattrap |
US2612367A (en) * | 1948-09-06 | 1952-09-30 | Ingenjors N H F Rost & Soner F | Switch contact spring |
US2701475A (en) * | 1950-04-17 | 1955-02-08 | Honeywell Regulator Co | Snap acting device |
CH288563A (en) * | 1951-02-15 | 1953-01-31 | Bruno Angel | Electric switch. |
US2729715A (en) * | 1952-08-23 | 1956-01-03 | Broch Frederick John | Snap action electrical switch |
US2798915A (en) * | 1954-01-04 | 1957-07-09 | James P Watson | Snap acting mechanism |
US2849580A (en) * | 1954-04-07 | 1958-08-26 | Tateishi Kazuma | Snap switch for direct current |
US2863547A (en) * | 1954-06-14 | 1958-12-09 | Charles G Cavalleri | Coin operated intermittent lighting device-automatic electric candle |
US2840656A (en) * | 1955-01-03 | 1958-06-24 | Illinois Tool Works | Low travel switch mechanism |
DE1187293B (en) * | 1955-01-03 | 1965-02-18 | Illinois Tool Works | Electrical snap-action switch with small switching travel |
US2875431A (en) * | 1955-10-21 | 1959-02-24 | Liquidometer Corp | Indicators for telemetering systems |
US2825779A (en) * | 1956-01-10 | 1958-03-04 | Electrical Apparatus Company I | Snap switch |
US2817725A (en) * | 1956-02-03 | 1957-12-24 | Gilfillan Bros Inc | Overtravel mechanism for sensitive switches |
US2861142A (en) * | 1956-10-05 | 1958-11-18 | American Radiator & Standard | Snap switch-large air gap |
US2899512A (en) * | 1956-12-13 | 1959-08-11 | burch | |
US2892908A (en) * | 1956-12-24 | 1959-06-30 | Gen Motors Corp | Electric switch |
US3001041A (en) * | 1957-09-30 | 1961-09-19 | Burgess Products Co Ltd | Snap-action devices |
NL285272A (en) * | 1959-08-20 | |||
US3056866A (en) * | 1959-11-16 | 1962-10-02 | Honeywell Regulator Co | Switch apparatus |
US3153125A (en) * | 1961-04-06 | 1964-10-13 | Ideal Corp | Snap-action switches having booily shifting of the line of tension of the strand portion |
US3098904A (en) * | 1961-07-21 | 1963-07-23 | Cherry Electrical Prod | Snap action switch |
US3119908A (en) * | 1962-02-05 | 1964-01-28 | Sanders Associates Inc | Cam operated microswitch actuator |
US3345476A (en) * | 1962-04-27 | 1967-10-03 | Penn Controls | Fool-proof snap action reset switch |
US3277257A (en) * | 1963-08-28 | 1966-10-04 | Doktor Benjamin | Column-spring type snap-action electrical switch |
GB1103101A (en) * | 1963-08-29 | 1968-02-14 | Smiths Industries Ltd | Improvements in or relating to snap action electric switches |
US3281553A (en) * | 1963-11-04 | 1966-10-25 | Leach Corp | Snap switch with dual blades urged toward each other |
US3415962A (en) * | 1966-12-09 | 1968-12-10 | Cutler Hammer Inc | Miniature precision snap action switch with one-piece stressed blade construction |
US3523167A (en) * | 1966-12-24 | 1970-08-04 | Matsushita Electric Works Ltd | Snap switch |
DE2058512C3 (en) * | 1970-11-27 | 1984-09-20 | E.G.O. Elektro-Geräte AG, Zug | Regulator for an electrical heating device, in particular an electric hotplate |
US3819891A (en) * | 1972-08-25 | 1974-06-25 | Narton Corp | Push button switch |
US4581503A (en) * | 1985-02-19 | 1986-04-08 | Honeywell Inc. | Humidity control with adjustment for variations in element sensitivity |
DE8604034U1 (en) * | 1986-02-14 | 1988-07-28 | SWF Auto-Electric GmbH, 7120 Bietigheim-Bissingen | Switches, especially for motor vehicles |
US5550341A (en) * | 1995-06-09 | 1996-08-27 | Honeywell Inc. | Switch mountable to a panel without additional fasteners |
WO2008086038A2 (en) * | 2007-01-10 | 2008-07-17 | Wildman Craig R | Pressure differential switch |
DE102012005711B3 (en) * | 2012-03-20 | 2013-05-23 | Helmholtz-Zentrum Berlin Für Materialien Und Energie Gmbh | Circuit arrangement for two-stage, ultra-high vacuum-compatible limit switch, has switch unit consisting of electrically conductive, mechanical actuator, control circuit, and output with ground connection |
US9691566B2 (en) * | 2012-10-25 | 2017-06-27 | Pityu Controls Inc. | State and operation indicator for a switch |
-
1933
- 1933-03-29 US US663280A patent/US1960020A/en not_active Expired - Lifetime
-
1934
- 1934-03-13 GB GB7916/34A patent/GB419917A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE756796C (en) * | 1939-04-19 | 1952-04-21 | Landis & Gyr Ag | Electrical switch with a movable contact element in the form of a stiffened leaf spring lamella that tilts over a short distance |
DE975370C (en) * | 1942-08-17 | 1961-11-16 | Siemens Ag | Bimetal relay for monitoring multi-phase consumers |
DE865329C (en) * | 1946-07-23 | 1953-02-02 | Landis & Gyr Ag | Toggle switch |
Also Published As
Publication number | Publication date |
---|---|
US1960020A (en) | 1934-05-22 |
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