US3887789A - No-relight cigar lighter socket - Google Patents

No-relight cigar lighter socket Download PDF

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Publication number
US3887789A
US3887789A US456625A US45662574A US3887789A US 3887789 A US3887789 A US 3887789A US 456625 A US456625 A US 456625A US 45662574 A US45662574 A US 45662574A US 3887789 A US3887789 A US 3887789A
Authority
US
United States
Prior art keywords
cigar lighter
stop member
burner cup
socket
lighter socket
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
US456625A
Other languages
English (en)
Inventor
Walter Pecota
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.)
Sun Chemical Corp
Original Assignee
Wagner Electric 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 Wagner Electric Corp filed Critical Wagner Electric Corp
Priority to US456625A priority Critical patent/US3887789A/en
Priority to CA220,145A priority patent/CA1027184A/en
Priority to GB706675A priority patent/GB1442972A/en
Priority to IT48319/75A priority patent/IT1029846B/it
Priority to DE19752512576 priority patent/DE2512576C3/de
Priority to JP3808975A priority patent/JPS5413833B2/ja
Priority to FR7510166A priority patent/FR2266108B1/fr
Application granted granted Critical
Publication of US3887789A publication Critical patent/US3887789A/en
Assigned to STUDEBAKER-WORTHINGTON, INC. reassignment STUDEBAKER-WORTHINGTON, INC. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: WAGNER ELECTRIC CORPORATION
Assigned to EDISON INTERNATONAL, INC. reassignment EDISON INTERNATONAL, INC. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: STUDEBAKER-WORTHINGTON, INC., A CORP. OF DE
Assigned to SUN CHEMICAL CORPORATION reassignment SUN CHEMICAL CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: EDISON INTERNATIONAL INC. A CORP. OF DEL.
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N3/00—Arrangements or adaptations of other passenger fittings, not otherwise provided for
    • B60N3/14—Arrangements or adaptations of other passenger fittings, not otherwise provided for of electrically-heated lighters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23Q—IGNITION; EXTINGUISHING-DEVICES
    • F23Q7/00—Incandescent ignition; Igniters using electrically-produced heat, e.g. lighters for cigarettes; Electrically-heated glowing plugs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23Q—IGNITION; EXTINGUISHING-DEVICES
    • F23Q7/00—Incandescent ignition; Igniters using electrically-produced heat, e.g. lighters for cigarettes; Electrically-heated glowing plugs
    • F23Q7/22—Details

Definitions

  • a no-relight lighter is one in which retention of the cigar lighter plug in the maximum inserted position in the cigar lighter socket will not result in excessive panel temperatures.
  • the maximum panel temperature normally permissible with a plastic dashboard is approximately 200F.
  • the present invention is a construction which eliminates such continuous energization even when the lighter plug is held in its maximum insertion position over a period of time.
  • FIG. 1 shows a standard cigar lighter
  • FIG. 2 shows a standard no-relight cigar lighter
  • FIG. 3 shows the stop member of a cigar lighter to the present invention
  • FIG. 4 shows the preferred embodiment of the stop member according to the present invention.
  • FIG. 1 there is shown a conventional type of cigar lighter.
  • the burner cup is spring loaded (not shown) in a shroud 12.
  • the shroud is retained from the maximum position by clips 14 in the side wall of the lighter socket 16 while the burner cup 10 advances to engage.
  • bimetallic thermostat 18 The bimetallic thermostat is connected to a stud 20 which is electrically insulated from the lighter socket 16 by means of a ceramic washer 22 attached to the socket 16 by a metal shroud 23 with tabs 25.
  • the element is a resistance wire formed in the shape of a helix which is connected to the burner cup at its outside perimeter and, by means of the plug, to ground from its center.
  • the element is usually electrically insulated from the plug except in these two areas as for example by means of a mica washer.
  • a stop member 26 is usually provided to limit insertion travel of the burner cup 10.
  • This stop member is usually made of metal such as stainless steel and as can be seen from the drawing, this stop member is usually assembled as an integral unit with the stud and bimetallic assembly. Since the stop member is in electrical contact with the stud 20 and with the burner cup 10 it will continue to supply electricity to the burner cup even after the bimetallic member has expanded away from the burner cup in those instances where pressure is continued to be applied to the lighter plug e.g., when an impatient driver continues to press on the plug head. Under these cir cumstances, the self-limiting temperature of the bimetallic thermostat is thwarted and the cigar lighter can become heated to a point where it will be detrimental to plastic dashboards.
  • a further disadvantage to extending the ceramic washer to also act as the stop member is that it requires additional tooling to so change the shape of the washer and also requires modification of the assembly apparatus since the structure to be made is considerably different from a standard cigar lighter as shown in FIG. 1. In a highly competitive industry such as the automotive industry, such tooling and re-designing of the assembly apparatus can be prohibitively expensive.
  • the disadvantages of prior art devices are overcome by making the stop member both strong and yet non-conducting while at the same time making it of the same shape as the shape of the stop member in standard lighters whereby no major retooling or modification of assembly equipment is required.
  • the stop member 26 according to the present invention is shown by itself in FIG. 3.
  • the stop member is made of metal in order to impart good strength.
  • an insulating coating 36 is applied to the stop member 26 at least in those areas of the stop member which will come into contact with the burner cup 10. It has been found that the insulating coating 36 must be able to withstand temperatures of at least about 1,000F. without breaking down either mechanically or electrically.
  • the thickness of the coating is not critical so long as it is sufficient to electrically isolate the stop member from the burner cup at the maximum design panel temperature of the lighter.
  • Ceramic spray coating may be applied only to the edges of the stop member 26 as shown in FIG. 3 but as a practical matter it will usually cover the entire facing surface of the stop member 26.
  • Ceramic coating is, of course, a well known technique.
  • a suitable method for use in the present invention is to apply aluminum oxide by spraying.
  • Typical spraying apparatus is the electric arc type wherein the ceramic is melted by the electric arc and then applied by means of a pressurized gas.
  • a coating of between about 0.1-0.2 mm of aluminum oxide applied to a stainless steel stop member has been found to be suitable. It is, of course, not necessary that the insulating material be sprayed on to the metal and it could suitably be formed by anodizing or the like.
  • the critical feature of the coating is that it withstand the abrasion of the burner cup and at the same time maintain its electrical insulating properties at temperatures up to l,000F.
  • the stop member serves not only as a stop member but also as a centering member as shown in FIG. 4.
  • a cigar lighter socket can have two or three or more bimetallic thermostats 18. Where three or more are employed, there is usually no problem encountered in centering the burner cup. However, where only two are employed, separate means for centering the burner cup are usually employed and as shown in FIG. 4, shoulders 38 on stop member 26 are suitable for this purpose.
  • a no-relight cigar lighter socket comprising:
  • bimetallic thermostat affixed to said stud, said bimetallic thermostat being capable of retaining an electrical burner cup of a cigar lighter plug when the same is inserted therein;
  • stop member being coated with an insulating material which electrically insulates the stop member from the burner cup when the burner cup is in its maximum inserted position thereby preventing the flow of electricity from the stop member to the burner cup when the burner cup is in contact with the stop member;
  • said insulating material maintaining its electrical insulating properties at temperatures up to the maximum design operating temperature of the cigar lighter socket.
  • the cigar lighter socket of claim 4 wherein the insulating coating is between about 0.1 and 0.2 mm in thickness.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Passenger Equipment (AREA)
  • Lighters Containing Fuel (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
US456625A 1974-04-01 1974-04-01 No-relight cigar lighter socket Expired - Lifetime US3887789A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
US456625A US3887789A (en) 1974-04-01 1974-04-01 No-relight cigar lighter socket
CA220,145A CA1027184A (en) 1974-04-01 1975-02-14 No-relight cigar lighter socket
GB706675A GB1442972A (en) 1974-04-01 1975-02-19 No-relight cigar lighter socket
IT48319/75A IT1029846B (it) 1974-04-01 1975-02-24 Perfezionamento negli accendini elettrici da automobile
DE19752512576 DE2512576C3 (de) 1974-04-01 1975-03-21 Zigarrenanzünderfassung
JP3808975A JPS5413833B2 (et) 1974-04-01 1975-03-31
FR7510166A FR2266108B1 (et) 1974-04-01 1975-04-01

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US456625A US3887789A (en) 1974-04-01 1974-04-01 No-relight cigar lighter socket

Publications (1)

Publication Number Publication Date
US3887789A true US3887789A (en) 1975-06-03

Family

ID=23813513

Family Applications (1)

Application Number Title Priority Date Filing Date
US456625A Expired - Lifetime US3887789A (en) 1974-04-01 1974-04-01 No-relight cigar lighter socket

Country Status (6)

Country Link
US (1) US3887789A (et)
JP (1) JPS5413833B2 (et)
CA (1) CA1027184A (et)
FR (1) FR2266108B1 (et)
GB (1) GB1442972A (et)
IT (1) IT1029846B (et)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3955333A (en) * 1975-03-17 1976-05-11 Wagner Electric Corporation Cigar lighter clamp shell
US4237367A (en) * 1978-12-06 1980-12-02 Wagner Electric Corporation No-relight cigar lighter socket
USRE31452E (en) * 1979-02-16 1983-11-29 Casco Products Division of Sun Chemical Corporation Quick-acting electric cigar lighter

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53871U (et) * 1976-06-22 1978-01-07
JPS5368767U (et) * 1976-11-10 1978-06-09

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2848590A (en) * 1956-10-09 1958-08-19 Cuno Eng Corp Circuit breaker lighter
US2948800A (en) * 1957-10-11 1960-08-09 Lawrence E Fenn Cigar lighter
US3012127A (en) * 1958-11-13 1961-12-05 Gen Motors Corp Contact assembly for lighter
US3419703A (en) * 1966-08-08 1968-12-31 American Mach & Foundry Electric cigar lighters
US3662153A (en) * 1970-10-26 1972-05-09 Amf Inc Electric cigar lighters

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2848590A (en) * 1956-10-09 1958-08-19 Cuno Eng Corp Circuit breaker lighter
US2948800A (en) * 1957-10-11 1960-08-09 Lawrence E Fenn Cigar lighter
US3012127A (en) * 1958-11-13 1961-12-05 Gen Motors Corp Contact assembly for lighter
US3419703A (en) * 1966-08-08 1968-12-31 American Mach & Foundry Electric cigar lighters
US3662153A (en) * 1970-10-26 1972-05-09 Amf Inc Electric cigar lighters

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3955333A (en) * 1975-03-17 1976-05-11 Wagner Electric Corporation Cigar lighter clamp shell
US4237367A (en) * 1978-12-06 1980-12-02 Wagner Electric Corporation No-relight cigar lighter socket
USRE31452E (en) * 1979-02-16 1983-11-29 Casco Products Division of Sun Chemical Corporation Quick-acting electric cigar lighter

Also Published As

Publication number Publication date
GB1442972A (en) 1976-07-21
IT1029846B (it) 1979-03-20
CA1027184A (en) 1978-02-28
JPS5413833B2 (et) 1979-06-02
DE2512576A1 (de) 1975-10-09
FR2266108A1 (et) 1975-10-24
FR2266108B1 (et) 1977-07-22
JPS50130578A (et) 1975-10-15
DE2512576B2 (de) 1976-12-09

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Legal Events

Date Code Title Description
AS Assignment

Owner name: STUDEBAKER-WORTHINGTON, INC., ILLINOIS

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:WAGNER ELECTRIC CORPORATION;REEL/FRAME:003984/0757

Effective date: 19801229

AS Assignment

Owner name: SUN CHEMICAL CORPORATION, NEW YORK, A CORP.OF DEL

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:EDISON INTERNATIONAL INC. A CORP. OF DEL.;REEL/FRAME:004009/0833

Effective date: 19820628

Owner name: SUN CHEMICAL CORPORATION, NEW YORK

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:EDISON INTERNATIONAL INC. A CORP. OF DEL.;REEL/FRAME:004009/0833

Effective date: 19820628

STCF Information on status: patent grant

Free format text: PATENTED FILE - (OLD CASE ADDED FOR FILE TRACKING PURPOSES)