GB621247A - Improvements relating to electrical switch contacts - Google Patents

Improvements relating to electrical switch contacts

Info

Publication number
GB621247A
GB621247A GB3881/47A GB388147A GB621247A GB 621247 A GB621247 A GB 621247A GB 3881/47 A GB3881/47 A GB 3881/47A GB 388147 A GB388147 A GB 388147A GB 621247 A GB621247 A GB 621247A
Authority
GB
United Kingdom
Prior art keywords
contact
contacts
switch contacts
electrical switch
improvements relating
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
Application number
GB3881/47A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
FIRST IND CORP
Original Assignee
FIRST IND CORP
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.)
Filing date
Publication date
Application filed by FIRST IND CORP filed Critical FIRST IND CORP
Publication of GB621247A publication Critical patent/GB621247A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/06—Contacts characterised by the shape or structure of the contact-making surface, e.g. grooved

Landscapes

  • Slide Switches (AREA)
  • Push-Button Switches (AREA)
  • Contacts (AREA)
  • Manufacture Of Switches (AREA)

Abstract

621,247. Snap-action switches; switch contacts. FIRST INDUSTRIAL CORPORATION. Feb. 10, 1947, No. 3881. Convention date, Feb. 11. 1946. [Class 38(v)] Each surface of a contact 18, 19, of, for example, a micro-switch, is formed with a number of continuous ribs 33 of substantially equal height and arranged parallel to the blade spring 20 carrying the contact. When moved into engagement with either of the fixed contacts 13, 14, the contact 18, 19, slides through a distance A, Fig. 3, due to vibration of the blade 20, this sliding movement serving to clear the contacts. The contact surfaces may be generally convex so that only a few of the ribs engage the co-operating contact, Fig. 4a (not shown), or the fixed contacts may be ribbed, Fig. 5 (not shown).
GB3881/47A 1946-02-11 1947-02-10 Improvements relating to electrical switch contacts Expired GB621247A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US646900A US2490020A (en) 1946-02-11 1946-02-11 Electrical contact

Publications (1)

Publication Number Publication Date
GB621247A true GB621247A (en) 1949-04-06

Family

ID=24594919

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3881/47A Expired GB621247A (en) 1946-02-11 1947-02-10 Improvements relating to electrical switch contacts

Country Status (3)

Country Link
US (1) US2490020A (en)
FR (1) FR940418A (en)
GB (1) GB621247A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5253278A (en) * 1975-10-27 1977-04-28 Matsushita Electric Ind Co Ltd Contact switch
JPS53145177U (en) * 1977-04-21 1978-11-15
JPS5434069U (en) * 1977-08-11 1979-03-06
DE3545789A1 (en) * 1984-12-25 1986-08-07 Mitsubishi Denki K.K., Tokio/Tokyo SWITCHING DEVICE
DE3924109A1 (en) * 1989-07-20 1991-01-31 Merit Elektrik Gmbh MULTIPLE SWITCHES, ESPECIALLY ON, OFF AND / OR SWITCHES FOR MOTOR VEHICLES AND RELATED APPLICATION

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2715169A (en) * 1950-07-21 1955-08-09 Honeywell Regulator Co Switch contact
US2723325A (en) * 1953-01-05 1955-11-08 Easton A Mckibbon Water heater cut-off device
US2849580A (en) * 1954-04-07 1958-08-26 Tateishi Kazuma Snap switch for direct current
CH319741A (en) * 1954-05-11 1957-02-28 Bbc Brown Boveri & Cie Contact piece for cutting knife
US2887861A (en) * 1955-05-25 1959-05-26 Frederick W Yessel Flashlight bulb contact cleaner
US2864921A (en) * 1955-07-28 1958-12-16 Gibson Electric Company Contact for interrupter switch
GB871499A (en) * 1956-10-22 1961-06-28 Cav Ltd Electromagnetically operable electric switches
US3250884A (en) * 1964-03-02 1966-05-10 Cutler Hammer Inc Electrical switch having improved movable contact holding means and contact cleaning means
FR2026043A1 (en) * 1968-12-13 1970-09-11 Bosch
US3725625A (en) * 1971-08-25 1973-04-03 Raytheon Co Mechanical pushbutton switch with pointed end coil spring contact
US3922814A (en) * 1973-12-27 1975-12-02 Kelley Co Inc Control switching for automatic load operators
FR2486706A1 (en) * 1980-07-11 1982-01-15 Thomson Brandt ELECTRICAL SWITCH WITH BREAKAGE OF CONTACTS WITH NEGLIGIBLE LEVEL OF RADIOELECTRIC DISTURBANCES
DE3233858A1 (en) * 1982-09-11 1984-03-15 Elan-Schaltelemente Kurt Maecker Gmbh, 4040 Neuss SWITCHING ELEMENT
US5020217A (en) * 1990-02-06 1991-06-04 General Electric Company Methods for fabricating an electrical contact
US6121753A (en) * 1997-01-23 2000-09-19 Walker; Douglas W. Apparatus and method for testing and indicating battery charge and functionality
US6034860A (en) * 1998-06-10 2000-03-07 Eaton Corporation Circuit breaking contact with micro-contact interface
DE102005049235B4 (en) * 2004-10-20 2009-07-09 Panasonic Corp., Kadoma Switch and method of making the same
PL1722382T3 (en) * 2005-05-10 2015-12-31 Elesta Relays Gmbh Contact arrangement for a relay
JP5738260B2 (en) * 2012-10-29 2015-06-17 株式会社鷺宮製作所 Contact structure of switch and pressure switch using the same

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE598540C (en) * 1934-06-12 Aeg Knife switch
US1040455A (en) * 1907-08-27 1912-10-08 Cutler Hammer Mfg Co Electric-switch contact.
US1337628A (en) * 1919-09-20 1920-04-20 John R Townsend Electric switch
NL15328C (en) * 1923-10-10
US1850703A (en) * 1927-06-27 1932-03-22 Gen Electric Co Ltd Electric switch
US2284644A (en) * 1939-01-19 1942-06-02 Dubilier William Electric switch

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5253278A (en) * 1975-10-27 1977-04-28 Matsushita Electric Ind Co Ltd Contact switch
JPS53145177U (en) * 1977-04-21 1978-11-15
JPS5729215Y2 (en) * 1977-04-21 1982-06-25
JPS5434069U (en) * 1977-08-11 1979-03-06
DE3545789A1 (en) * 1984-12-25 1986-08-07 Mitsubishi Denki K.K., Tokio/Tokyo SWITCHING DEVICE
DE3924109A1 (en) * 1989-07-20 1991-01-31 Merit Elektrik Gmbh MULTIPLE SWITCHES, ESPECIALLY ON, OFF AND / OR SWITCHES FOR MOTOR VEHICLES AND RELATED APPLICATION

Also Published As

Publication number Publication date
US2490020A (en) 1949-12-06
FR940418A (en) 1948-12-13

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