US3651295A - Electrical switches with indicator means - Google Patents

Electrical switches with indicator means Download PDF

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Publication number
US3651295A
US3651295A US55020A US3651295DA US3651295A US 3651295 A US3651295 A US 3651295A US 55020 A US55020 A US 55020A US 3651295D A US3651295D A US 3651295DA US 3651295 A US3651295 A US 3651295A
Authority
US
United States
Prior art keywords
bulb
switch
contact
engaged
bulb holder
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 - Lifetime
Application number
US55020A
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English (en)
Inventor
David Foley
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of US3651295A publication Critical patent/US3651295A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P7/00—Arrangements of distributors, circuit-makers or -breakers, e.g. of distributor and circuit-breaker combinations or pick-up devices
    • F02P7/02—Arrangements of distributors, circuit-makers or -breakers, e.g. of distributor and circuit-breaker combinations or pick-up devices of distributors
    • F02P7/021—Mechanical distributors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/16—Indicators for switching condition, e.g. "on" or "off"
    • H01H9/161—Indicators for switching condition, e.g. "on" or "off" comprising light emitting elements

Definitions

  • An electrical switch includes a body, a first terminal member supported by the body and electrically connected to a fixed contact of the switch, and a bulb holder detachably engaged with the body.
  • a second terminal member is secured on the bulb holder and is arranged to engage one of the contacts of a bulb supported in the bulb holder in use.
  • a resilient, conductive, connector is secured to the first terminal member and is arranged to engage the other contact of a bulb supported in the bulb holder in use, the connector being stressed when engaged with the other contact of the bulb so that the other contact is engaged firmly by the connector.
  • a switch includes a body, a first terminal member supported by the body and electrically connected to a fixed contact of the switch, a bulb holder detachably engaged with the body, a second terminal member on the bulb holder arranged to engage one of the contacts of a bulb supported in the bulb holder in use, and a resilient, conductive, connector secured to the first terminal member and arranged to engage the other contact of a bulb supported in the bulb holder in use, the connector being stressed when engaged with said other contact of the bulb so that said other contact is engaged firmly by the connector.
  • FIG. 1 is a fragmentary, perspective viewpartly cut away of the base of a switch according to one example of the invention.
  • FIG. 2 is a side elevational view of the switch shown in part in FIG. 1.
  • the switch includes a moulded synthetic resin body 11 having an integral base 12. Extending through the base 12 are a pair of blade terminals 13, 14 which are electrically connected to respective fixed switch contacts within the body 11. A movable bridging member within the body 11 is movable in response to movement of the operating member of the switch to bridge the fixed contacts, and thereby complete an electrical circuit between the blade terminals 13, 14. Extending through the base 12 is a passage 20 within which is detachably received a moulded synthetic resin bulb holder 15.
  • the bulb holder 15 is hollow, and is internally screw-threaded to receive a bulb 16 of the kind including a conductive cap 17 which constitutes one contact of the bulb, and which carries the second contact of the bulb, the second contact of the bulb being insulated from the cap.
  • the end of the bulb holder 15 is closed by a terminal plate 18 which is riveted to the bulb holder 15, and which is engaged by the second contact of the bulb.
  • the terminal plate 18 is riveted to the bulb holder 15 at a point spaced from the point which it is engaged by the second contact of the bulb, and the terminal plate 18 is resilient, so that when the bulb 16 is screwed into the bulb holder 15 the terminal plate 18 is flexed, and the inherent resilience of the plate 18 ensures that a good electrical connection is produced between the plate 18 and the second contact of the bulb.
  • the blade terminal 14 is formed, adjacent the body 1 1, with a hole 19 through which one end 22 of a resilient, metal wire 21 extends.
  • One wall of the bulb holder 15 is formed with an aperture, and the end of the wire 21 remote from the blade terminal 14 extends across the aperture in the bulb holder 15, and lies in contact with the cap 17 of the bulb 16, thereby electrically interconnecting the blade terminal 14 and the cap 17 of the bulb.
  • the blade terminal 14 constitutes an anchorage point for the wire 21, and the wire 21 is stressed when its end remote from the blade terminal 14 is engaged with the cap 17.
  • the wire 21 serves to retain the bulb holder 15 in position relative to the body 11 and serves to resist disengagement of the bulb from the bulb holder.
  • the operating member of the switch is a rocker type operating member, and is provided with a transparent lens 24 (FIG. 2) which is illuminated by light from the bulb 16, when the bulb 16 is energized.
  • the terminal 13 of the switch is a feed terminal, and the terminal 14 is electrically connected to earth through the component controlled by the switch.
  • the terminal plate 18 is connected to earth through a conductive lead 23 and so when the switch is in its made position, with the contact piece of the switch electrically interconnecting the terminals 13,14 then the circuit to the component controlled by the switch is completed, and a circuit throu h the bulb 16 is completed by way of the wire 21 and the lea 23, so that the bulb 16 is energized.
  • a visible indication that the switch is in its made position is given by the illumination of the lens in the operating member, by light from the bulb 16.
  • the lens need not be on the operating member of the switch, and in the case where the switch is of the type having an operating lever rather than a rocker type operating member, the lens will be provided on the body 1 1.
  • the terminal 13 is electrically connected to one pole of the battery of a road vehicle, the other pole of the battery being connected to earth.
  • the terminal 14 is electrically connected through the reversing light of the road vehicle to earth, and the lead 23 is also connected to earth.
  • An electrical switch including a body housing a switching mechanism, a first external terminal member supported by the body and electrically connected to a fixed contact of the switching mechanism of the switch, a bulb holder detachably engaged with the body, a second terminal member on the bulb holder arranged to engage one of the contacts of a bulb supported in the bulb holder in use, and a resilient conductive connector secured to the first terminal member and arranged to engage, externally of the body, the other contact of a bulb supported in the bulb holder in use, the connector being stressed when engaged with said other contact of the bulb so that said other contact is firmly engaged by the connector.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)
  • Push-Button Switches (AREA)
US55020A 1969-08-12 1970-07-15 Electrical switches with indicator means Expired - Lifetime US3651295A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4018669 1969-08-12

Publications (1)

Publication Number Publication Date
US3651295A true US3651295A (en) 1972-03-21

Family

ID=10413637

Family Applications (1)

Application Number Title Priority Date Filing Date
US55020A Expired - Lifetime US3651295A (en) 1969-08-12 1970-07-15 Electrical switches with indicator means

Country Status (6)

Country Link
US (1) US3651295A (de)
JP (1) JPS5135715B1 (de)
DE (1) DE2036764C3 (de)
ES (1) ES160976Y (de)
FR (1) FR2057830A5 (de)
GB (1) GB1316103A (de)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3350531A (en) * 1966-07-13 1967-10-31 Illinois Tool Works Switch assembly including indicating means
US3394403A (en) * 1965-09-22 1968-07-23 Maxson Electronics Corp Lighted pushbutton assembly
US3457383A (en) * 1966-09-29 1969-07-22 Gen Electric Low power toggle switch mechanism
US3514565A (en) * 1967-06-30 1970-05-26 Telemecanique Electrique Electric contact device used with push-button activation

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE385486C (de) * 1921-03-05 1923-12-05 Siemens & Halske Akt Ges Kontroll- und UEberwachungseinrichtung fuer Fahrzeuge
US1671623A (en) * 1926-05-29 1928-05-29 French Battery Company Electric switch
DE584151C (de) * 1930-02-28 1933-09-15 Aeg Beleuchtungseinrichtung fuer Installationsapparate
BE416111A (de) * 1936-06-09
DE877561C (de) * 1942-04-18 1953-05-26 Westfaelische Metall Ind G M B Schalter fuer elektrische Anlagen, insbesondere fuer Kraftfahrzeuge
US2546086A (en) * 1945-11-03 1951-03-20 Wilhelm W Brockway Plate push button
DE1778673U (de) * 1958-09-27 1958-12-04 Hochkoepper & Co P Glimmlampe, insbesondere fuer drucktastenschalter.
DE1169545B (de) * 1962-09-06 1964-05-06 Vedder Gmbh Geb Elektrischer Schnurschalter
DE1954073U (de) * 1966-06-23 1967-01-26 Busch Jaeger Duerener Metall Elektrischer installationsschalter mit beleuchtung.
DE1983608U (de) * 1968-01-22 1968-04-18 Berker Geb Elektrischer schalter mit einem glimmlampen- oder gluehlampenaggregat.
AT292932B (de) * 1968-05-27 1971-08-15 Lenin Kohaszati Muvek Verfahren zur herstellung waermeisolierender gemische zur verminderung des gewichtes der verlorenen gieszkoepfe von produkten aus eisen- und metallegierungen

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3394403A (en) * 1965-09-22 1968-07-23 Maxson Electronics Corp Lighted pushbutton assembly
US3350531A (en) * 1966-07-13 1967-10-31 Illinois Tool Works Switch assembly including indicating means
US3457383A (en) * 1966-09-29 1969-07-22 Gen Electric Low power toggle switch mechanism
US3514565A (en) * 1967-06-30 1970-05-26 Telemecanique Electrique Electric contact device used with push-button activation

Also Published As

Publication number Publication date
GB1316103A (en) 1973-05-09
FR2057830A5 (de) 1971-05-21
ES160976U (es) 1970-10-16
ES160976Y (es) 1971-07-01
JPS5135715B1 (de) 1976-10-04
DE2036764C3 (de) 1981-03-12
DE2036764A1 (de) 1971-02-25
DE2036764B2 (de) 1980-06-19

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