WO2006091270A1 - A double-disk assembly for a cigar or cigarette lighter - Google Patents

A double-disk assembly for a cigar or cigarette lighter Download PDF

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Publication number
WO2006091270A1
WO2006091270A1 PCT/US2006/000051 US2006000051W WO2006091270A1 WO 2006091270 A1 WO2006091270 A1 WO 2006091270A1 US 2006000051 W US2006000051 W US 2006000051W WO 2006091270 A1 WO2006091270 A1 WO 2006091270A1
Authority
WO
WIPO (PCT)
Prior art keywords
disk
bimetallic
double
disks
metal
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.)
Ceased
Application number
PCT/US2006/000051
Other languages
French (fr)
Inventor
Ralph Lauer
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.)
Casco Products Corp
Original Assignee
Casco Products 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 Casco Products Corp filed Critical Casco Products Corp
Priority to JP2007557017A priority Critical patent/JP4598833B2/en
Priority to CA2598591A priority patent/CA2598591C/en
Priority to BRPI0606565-1A priority patent/BRPI0606565A2/en
Priority to KR1020077021962A priority patent/KR100890059B1/en
Priority to MX2007010239A priority patent/MX2007010239A/en
Priority to EP06717276A priority patent/EP1856450B1/en
Priority to CN2006800055050A priority patent/CN101124435B/en
Priority to ES06717276T priority patent/ES2407818T3/en
Publication of WO2006091270A1 publication Critical patent/WO2006091270A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H37/00—Thermally-actuated switches
    • H01H37/02—Details
    • H01H37/64—Contacts
    • H01H37/66—Magnetic reinforcement of contact pressure; Magnet causing snap action

Definitions

  • the present invention relates to a heating element of a cigar lighter, and more particularly to a thermally controlled switching element in a cigar or cigarette lighter.
  • U.S. Patent No. 6,740,850 discloses an electric cigar lighter assembly that has a lighter heating assembly 100 that plugs into a socket assembly 300.
  • the lighter assembly 100 includes a heating element 122 and a switch.
  • the switch is comprised of contacts 142 and 154.
  • Fig. 1 shows the lighter assembly 100 inserted into the socket 300 but un-energized because the contacts 142, 154 are not in electrical contact.
  • a bimetallic disk 146 heats up and moves from the position shown in Fig. IB to the position shown in Fig. 1 by the bold lines, thereby forcing the lighter 100 outwardly and disengaging the contacts 142 and 154, thus de-energizing the heater 122.
  • a problem with this construction is that the single bimetallic disk 146 is used to cause the lighter to pop-up when the heating element reaches a desired temperature. The problem with such a single bimetallic disk is that it is difficult to provide controlled upper and lower limits of a temperature window for operation of the bimetallic disk.
  • U.S. Patent No. 2,137,195 teaches a cigar lighter that has a heating element carried within and connected to a metal cup and also to a central stud.
  • the cup is one of two contacts that are brought together to place the heating element in the energizing circuit.
  • the other contact is not a thermostatic element, but another part carried by the thermostatic element and, in particular, a permanently dished metal plate. This plate is centrally riveted to the center of the thermostatic element which is normally uniplanar. The heat responsive deformation of the thermostatic element pushes against the metal plate to force the lighter assembly out of the socket.
  • an electric cigar lighter particularly a cigar lighter for an automobile, having a pop-up double element assembly made up of a bimetallic element and a metal element that is not bimetallic.
  • the elements are attached to one another at a center of each element.
  • the elements can be configured as curved disks and are attached to each other by, for example, riveting or welding.
  • the bimetallic disk as a dished-shape, i.e., is curved when viewed in cross- section, and the metal disk which is not bimetallic is also dished.
  • the disks are arranged so that in a normal, non-use state of the lighter the dish-shaped disks curve in opposite directions.
  • the bimetallic disk is arranged adjacent the metal disk.
  • the bimetallic disk curves away from the metal disk and the metal disk curves away from the bimetallic disk so that the two disks touch one another in a region of their apex. At this contact region, the disks are connected, for example, by a rivet.
  • the periphery of the metal disk is mounted to the lighter structure so that movement of the metal disk also moves the upper bimetallic disk.
  • Fig. 1 is a cut-away view of a prior art lighter assembly
  • Fig. IB is the same view as in Fig. 1, but showing the lighter heating unit assembly in an electrically engaged position;
  • FIG. 2 is a schematic section through a double disk element pursuant to the present invention in a first, rest position
  • FIG. 3 is a view as in Fig. 2 in a second, initial heating position
  • Fig. 4 is a view as in Fig. 2 of the disks in a heated position
  • Fig. 5 is a view as in Fig. 2 of the disks in a cool down phase.
  • Figs. 1 and IB show the components of a prior art electric cigar lighter for an automobile.
  • Figs. 2-5 show the two disk assembly of the present invention.
  • the two disk assembly of the present invention would be substituted for the element 146 shown in Figs. 1 and IB.
  • Figs. 1 and IB are only an example of one type of cigar lighter in which the invention can be used.
  • the specific components, other than the double disk element are not of concern in the presently claimed invention and can be modified as within the purview of those skilled in the art.
  • the double element assembly of the present invention includes a bimetallic disk 1 and a metal disk 2.
  • the metal disk 2 is dome-shaped and the bimetallic disk 1 has an inverted dome shape.
  • the disks 1, 2 are connected to the other by a rivet 3. It is understood that any type of connection is possible which allows the two disks to be connected only at their apex region and leaving the remaining regions of the disks independently movable from one another.
  • the outer periphery of the metal disk 2 is attached to the cigar lighter itself. [0017] In an at rest state or non-use state of the cigar lighter, the disks 1, 2 rest as shown in Fig. 2.
  • the metal disk 2 flips so that the two disks 1, 2 assume the same shape, as shown in Fig. 3. In this position, the rivet 3 engages a contact 6 that closes an electric circuit that causes current to flow which in turn heats up the metal disk 2 and the bimetallic disk 1.
  • the bimetallic disk 1 flips and due to the rivet 3 connection to the metal disk 2, pulls the metal disk 2 along so that the rivet 3 disengages from the contact 6, as shown in Fig. 4, and opens the circuit. This also forces the lighter assembly to pop a defined distance out of the socket, alerting the user the lighter is ready to use. Once the circuit is open the disks no longer heat up.
  • a defined temperature for example, 9O 0 C
  • the bimetallic disk 1 After the bimetallic disk 1 has cooled down, it again flips to its initial at rest state as shown in Fig. 5. This cool down flip occurs at a temperature below, for example, 60 0 C.
  • the present invention allows a well-defined exemplary temperature window of, for example, between 60 0 C and 90 0 C for operation of the bimetallic disk 1 and also reduces the effect of the bimetallic disk at low temperatures on the overall lighter assembly. It is understood that the temperatures given are only examples and that any desired temperatures can be used to form the temperature window. As shown in Figs. 2 and 3, upon initial activation of the lighter, it is the metal disk 2 that is inverted, not the bimetallic disk. The bimetallic disk is not flipped by a user-imposed force. Furthermore, the additional metal disk 2 acts as a heat shield which increases the life of the bimetallic disk 1. It is of course understood that the temperature window can be changed as desired by the specific construction of the bimetallic disk, as is known in the art.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Passenger Equipment (AREA)
  • Thermally Actuated Switches (AREA)

Abstract

The double element assembly includes a bimetallic disk (1) and a metal disk (2). The metal disk (2) is dome-shaped and the bimetallic disk (1) has an inverted dome shape. The disks (1, 2) are connected to the other by a rivet (3). Any type of connection is possible which allows the two disks to be connected only at their apex region and leaving the remaining regions of the disks independently movable from one another. The outer periphery of the metal disk (2) is attached to the cigar lighter itself.

Description

A Double-Disk Assembly For A Cigar or Cigarette Lighter
BACKGROUND OF THE INVENTION
[0001] The present invention relates to a heating element of a cigar lighter, and more particularly to a thermally controlled switching element in a cigar or cigarette lighter.
[0002] Various lighters are known for automotive applications, including lighters shown in the following U.S. Patents: 4,168,422; 4,204,109; 4,207,455; 4,177,374; 5,998,763; and 4,230,931. U.S. Patent No. 6,740,850 discloses an electric cigar lighter assembly that has a lighter heating assembly 100 that plugs into a socket assembly 300. The lighter assembly 100 includes a heating element 122 and a switch. The switch is comprised of contacts 142 and 154. Fig. 1 shows the lighter assembly 100 inserted into the socket 300 but un-energized because the contacts 142, 154 are not in electrical contact. When the knob 102 is pushed in, thus forcing the lighter 100 into the socket assembly 300 further, the contacts 142, 154 engage in the heater 122 is electrically energized. After a period of time, a bimetallic disk 146 heats up and moves from the position shown in Fig. IB to the position shown in Fig. 1 by the bold lines, thereby forcing the lighter 100 outwardly and disengaging the contacts 142 and 154, thus de-energizing the heater 122. A problem with this construction is that the single bimetallic disk 146 is used to cause the lighter to pop-up when the heating element reaches a desired temperature. The problem with such a single bimetallic disk is that it is difficult to provide controlled upper and lower limits of a temperature window for operation of the bimetallic disk.
[0003] U.S. Patent No. 2,137,195 teaches a cigar lighter that has a heating element carried within and connected to a metal cup and also to a central stud. The cup is one of two contacts that are brought together to place the heating element in the energizing circuit. The other contact, however, is not a thermostatic element, but another part carried by the thermostatic element and, in particular, a permanently dished metal plate. This plate is centrally riveted to the center of the thermostatic element which is normally uniplanar. The heat responsive deformation of the thermostatic element pushes against the metal plate to force the lighter assembly out of the socket.
SUMMARY OF THE INVENTION
[0004] Accordingly, it is an object of the present invention to provide an electric cigar lighter, particularly a cigar lighter for an automobile, having a pop-up double element assembly made up of a bimetallic element and a metal element that is not bimetallic. The elements are attached to one another at a center of each element. The elements can be configured as curved disks and are attached to each other by, for example, riveting or welding.
[0005] The bimetallic disk as a dished-shape, i.e., is curved when viewed in cross- section, and the metal disk which is not bimetallic is also dished. The disks are arranged so that in a normal, non-use state of the lighter the dish-shaped disks curve in opposite directions. The bimetallic disk is arranged adjacent the metal disk. The bimetallic disk curves away from the metal disk and the metal disk curves away from the bimetallic disk so that the two disks touch one another in a region of their apex. At this contact region, the disks are connected, for example, by a rivet.
[0006] The periphery of the metal disk is mounted to the lighter structure so that movement of the metal disk also moves the upper bimetallic disk.
[0007] Other features and advantages of the present invention will become apparent from the following description of the invention which refers to the accompanying drawings. BRIEF DESCRIPTION QF THE DRAWINGS
[0008] Fig. 1 is a cut-away view of a prior art lighter assembly;
[0009] Fig. IB is the same view as in Fig. 1, but showing the lighter heating unit assembly in an electrically engaged position;
[0010] Fig. 2 is a schematic section through a double disk element pursuant to the present invention in a first, rest position;
[0011] Fig. 3 is a view as in Fig. 2 in a second, initial heating position;
[0012] Fig. 4 is a view as in Fig. 2 of the disks in a heated position; and
[0013] Fig. 5 is a view as in Fig. 2 of the disks in a cool down phase.
DETAILED DESCRIPTION OF THE INVENTION
[0014] As previously mentioned, Figs. 1 and IB show the components of a prior art electric cigar lighter for an automobile.
[0015] Figs. 2-5 show the two disk assembly of the present invention. The two disk assembly of the present invention would be substituted for the element 146 shown in Figs. 1 and IB. Of course, Figs. 1 and IB are only an example of one type of cigar lighter in which the invention can be used. The specific components, other than the double disk element are not of concern in the presently claimed invention and can be modified as within the purview of those skilled in the art.
[0016] As shown in Fig. 2, the double element assembly of the present invention includes a bimetallic disk 1 and a metal disk 2. The metal disk 2 is dome-shaped and the bimetallic disk 1 has an inverted dome shape. The disks 1, 2 are connected to the other by a rivet 3. It is understood that any type of connection is possible which allows the two disks to be connected only at their apex region and leaving the remaining regions of the disks independently movable from one another. The outer periphery of the metal disk 2 is attached to the cigar lighter itself. [0017] In an at rest state or non-use state of the cigar lighter, the disks 1, 2 rest as shown in Fig. 2. When a force 5 is used to press the heating element of the lighter into the socket, the metal disk 2 flips so that the two disks 1, 2 assume the same shape, as shown in Fig. 3. In this position, the rivet 3 engages a contact 6 that closes an electric circuit that causes current to flow which in turn heats up the metal disk 2 and the bimetallic disk 1.
[0018] When the temperature of the bimetallic disk 1 exceeds a defined temperature, for example, 9O0C, the bimetallic disk 1 flips and due to the rivet 3 connection to the metal disk 2, pulls the metal disk 2 along so that the rivet 3 disengages from the contact 6, as shown in Fig. 4, and opens the circuit. This also forces the lighter assembly to pop a defined distance out of the socket, alerting the user the lighter is ready to use. Once the circuit is open the disks no longer heat up.
[0019] After the bimetallic disk 1 has cooled down, it again flips to its initial at rest state as shown in Fig. 5. This cool down flip occurs at a temperature below, for example, 600C.
[0020] The present invention allows a well-defined exemplary temperature window of, for example, between 600C and 900C for operation of the bimetallic disk 1 and also reduces the effect of the bimetallic disk at low temperatures on the overall lighter assembly. It is understood that the temperatures given are only examples and that any desired temperatures can be used to form the temperature window. As shown in Figs. 2 and 3, upon initial activation of the lighter, it is the metal disk 2 that is inverted, not the bimetallic disk. The bimetallic disk is not flipped by a user-imposed force. Furthermore, the additional metal disk 2 acts as a heat shield which increases the life of the bimetallic disk 1. It is of course understood that the temperature window can be changed as desired by the specific construction of the bimetallic disk, as is known in the art.
[0021] Although the present invention has been described in relation to particular embodiments thereof, many other variations and modifications and other uses will become apparent to those skilled in the art. Therefore, the present invention should be limited not by the specific disclosure herein, but only by the appended claims.

Claims

WHAT IS CLAIMED IS:
1. A double-element assembly for a cigar lighter, comprising: a bimetallic element; and a metal element that is not bimetallic, the elements being attached to one another in a center region of each element.
2. The double-element assembly according to claim 1, wherein the elements are disks.
3. The double-element assembly according to claim 2, wherein the bimetallic disk is riveted to the metal disk.
4. The double-element according to claim 2, wherein the bimetallic disk is welded to the metal disk.
5. The double-element assembly according to claim 2, wherein the bimetallic disk has a smaller area than the metal disk.
6. The double-element assembly according to claim 2, wherein the disks curve in opposite directions.
7. A cigar lighter assembly, comprising: a heating unit and a socket in which the heating unit is slideably received, the heating unit comprising a switch and a double-element assembly for opening the switch when an electrical heating element reaches a predetermined temperature, the socket including a socket housing sized so as to receive the heating unit therein, the double-element assembly including a bimetallic element and a metal element that is not bimetallic, wherein the bimetallic element and the metal element are attached to one another at substantially a center of each element.
8. The cigar lighter assembly according to claim 7, wherein the elements are disks.
9. The cigar lighter according to claim 8, wherein the bimetallic disk has a smaller area than the metal disk.
10. The cigar lighter assembly according to claim 8, wherein the bimetallic disk is riveted to the metal disk.
11. The cigar lighter assembly according to claim 8, wherein the disks curve in opposite directions.
PCT/US2006/000051 2005-02-22 2006-01-03 A double-disk assembly for a cigar or cigarette lighter Ceased WO2006091270A1 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
JP2007557017A JP4598833B2 (en) 2005-02-22 2006-01-03 2-disc assembly for cigarette lighter
CA2598591A CA2598591C (en) 2005-02-22 2006-01-03 A double-disk assembly for a cigar or cigarette lighter
BRPI0606565-1A BRPI0606565A2 (en) 2005-02-22 2006-01-03 mounting a double element for a cigarette and / or cigar lighter or lighter and mounting a cigarette and / or cigar lighter or lighter
KR1020077021962A KR100890059B1 (en) 2005-02-22 2006-01-03 A double-disk assembly for a cigar or cigarette lighter
MX2007010239A MX2007010239A (en) 2005-02-22 2006-01-03 A double-disk assembly for a cigar or cigarette lighter.
EP06717276A EP1856450B1 (en) 2005-02-22 2006-01-03 A double-disk assembly for a cigar or cigarette lighter
CN2006800055050A CN101124435B (en) 2005-02-22 2006-01-03 A double-disk assembly for a cigar or cigarette lighter
ES06717276T ES2407818T3 (en) 2005-02-22 2006-01-03 Double disc set for a cigarette lighter or cigarette lighter

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/064,508 2005-02-22
US11/064,508 US7060938B1 (en) 2005-02-22 2005-02-22 Double-disk assembly for a cigar or cigarette lighter

Publications (1)

Publication Number Publication Date
WO2006091270A1 true WO2006091270A1 (en) 2006-08-31

Family

ID=36576447

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2006/000051 Ceased WO2006091270A1 (en) 2005-02-22 2006-01-03 A double-disk assembly for a cigar or cigarette lighter

Country Status (10)

Country Link
US (1) US7060938B1 (en)
EP (1) EP1856450B1 (en)
JP (1) JP4598833B2 (en)
KR (1) KR100890059B1 (en)
CN (1) CN101124435B (en)
BR (1) BRPI0606565A2 (en)
CA (1) CA2598591C (en)
ES (1) ES2407818T3 (en)
MX (1) MX2007010239A (en)
WO (1) WO2006091270A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8546730B2 (en) 2011-08-19 2013-10-01 Casco Products Corporation Electric cigar lighter, universal power socket and accessory plug
US9096149B2 (en) 2011-08-19 2015-08-04 Casco Products Corporation Electric cigar lighter, universal power socket and accessory plug

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4230931A (en) * 1978-10-10 1980-10-28 Sun Chemical Corporation Electric cigar lighter
US6054916A (en) * 1997-06-27 2000-04-25 Hofsaess; Marcel Switch having a temperature-dependent switching mechanism

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US2292408A (en) * 1937-12-01 1942-08-11 Raytheon Mfg Co Lighter
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US4207455A (en) * 1978-10-10 1980-06-10 Sun Chemical Corporation Automatic electric cigar lighter with base switch
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US4544226A (en) * 1984-04-09 1985-10-01 Casco Products Corporation Two-piece clamp shell for electric cigar lighter
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US4230931A (en) * 1978-10-10 1980-10-28 Sun Chemical Corporation Electric cigar lighter
US6054916A (en) * 1997-06-27 2000-04-25 Hofsaess; Marcel Switch having a temperature-dependent switching mechanism

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Title
See also references of EP1856450A4 *

Also Published As

Publication number Publication date
ES2407818T3 (en) 2013-06-14
JP2008531374A (en) 2008-08-14
CN101124435B (en) 2012-04-04
MX2007010239A (en) 2008-03-10
JP4598833B2 (en) 2010-12-15
EP1856450A1 (en) 2007-11-21
EP1856450A4 (en) 2010-09-29
CA2598591C (en) 2010-11-30
CN101124435A (en) 2008-02-13
EP1856450B1 (en) 2013-02-27
KR100890059B1 (en) 2009-03-25
KR20070116014A (en) 2007-12-06
CA2598591A1 (en) 2006-08-31
US7060938B1 (en) 2006-06-13
BRPI0606565A2 (en) 2010-01-19

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