US3821517A - Electric heater device - Google Patents
Electric heater device Download PDFInfo
- Publication number
- US3821517A US3821517A US00047243A US4724370A US3821517A US 3821517 A US3821517 A US 3821517A US 00047243 A US00047243 A US 00047243A US 4724370 A US4724370 A US 4724370A US 3821517 A US3821517 A US 3821517A
- Authority
- US
- United States
- Prior art keywords
- support member
- loops
- coil
- cover members
- electric heater
- 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
Links
- 238000004804 winding Methods 0.000 description 5
- 238000005338 heat storage Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000010445 mica Substances 0.000 description 2
- 229910052618 mica group Inorganic materials 0.000 description 2
- 241001306288 Ophrys fuciflora Species 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical group [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000003779 heat-resistant material Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/10—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor
- H05B3/16—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor the conductor being mounted on an insulating base
Definitions
- An electric heater device comprising a heater coil helically wound around an elongated insulated support member and incuding tensioning means for stretching the coil longitudinally of the support member to space adjacent coil loops one from the other.
- a pair of insulated members are provided over the faces of the support member to electrically insulate the coil and to press the helically wound coil loops toward the support member.
- the present invention is directed to new and useful improvements in heater devices for electrical appliances and in methods of making heater devices and more particularly to heater devices of the type wherein a coil of wire is wound around an insulated support member.
- Certain portable electrical appliances such as electric hair curlers include a plurality of heat retaining hair rollers mounted on a heat sink surface such as a heat storing plate and which plate conducts heat to the rollers.
- Hair curler appliances of this type further include an electric heater device disposed adjacent the heat storing plate to conduct heat thereto.
- One such heater device comprises a coil of wire having loops that are tightly wound around an insulated support member.
- individual tightly wound loops of the coil are fixed in spaced relationship along the length of the support member. If adjacent coil loops are not properly spaced on the support member one loop can touch another to effect a short circuit therebetween resulting in a lack of heat produced by the coil in the area where the loops are in contact.
- the heater coil is wound about an insulated support mem ber, that is provided with serrations along a pair of parallel edges.
- Each individual loop of the heater element coil is tightly wound onto a respective serration such that the adjacent coil loops are spaced one from the other by the distance between serrations.
- the surfaces of the serrations fix the spaced relationship of the loops on the support member to prevent short circuits therebetween.
- Another object is to provide a novel electric heater device wherein a resilient heater coil element is wound around an insulated support member and stretched along the length thereof to space the coil loops one from the other.
- a further object is to provide a novel electric heater device wherein an insulated support member is disposed within a resilient wire-wound heater coil element and wherein tensioning means are provided at the ends of the element to stretch the coil longitudinally of the support member whereby adjacent coil loops are spaced one from the other.
- a still further object is to provide a novel electric heater device wherein a resilient heater coil element is wound around an insulated support member and wherein cover strips are provided over the faces of the support member to electrically insulate the coil and to press the coil loops toward the support member.
- Still another object is to provide a novel method for making an electric heater device.
- the present invention contemplates a novel electric heater device.
- the heater device comprises an elongated insulated support member having a heater coil element helically wound thereon. Tensioning means are provided for stretching the heater coil element longitudinally of the support member whereby adjacent coil loops are maintained in a stretched and spaced condition.
- the electric heater device further includes a pair of insulated cover strips provided over the faces of the support member in close relationship therewith to electrically insulate the coil and to press the helically wound coil loops toward the support member.
- FIG. I is a perspective view of an electric heater device which incorporates one embodiment of the present invention.
- FIG. 2 is a front elevational view of the device of FIG.
- FIG. 3 is a sectional view thereof taken on the line 3-3 of FIG. 2;
- FIGS. 41, 5, 6, 7 and 8 respectively are views which show the steps of assembly of the electric heater dev1ce
- FIG. 9 is an enlarged fragmentary sectional view taken on the line 99 of FIG. 3.
- FIG. ll an electric heater device incorporating an embodiment thereof is generally indicated by the reference numeral in FIG. ll.
- Electric heater device 10 (FIGS. 1 and 2) comprises an elongated support member Ill and a heater coil element 12 (FIG. ll) having coil loops l3 helically wound about support member 11 in a manner to be described in detail.
- a pair of elongated rectangular shaped insulated cover strips 141 and 15 (FIGS. l and 2) are provided over support member 11 to cover loops 13.
- Support member ill (FIGS. 1 and 3) is rectangular in shape and is formed of a heat resistant material such as silicon bonded mica paper.
- Member lll includes a pair of opposite and identical longitudinally extending support surfaces to support heater element 12, one of the support surfaces being shown at 16 in FIG. 1.
- Member 11 further includes a pair of longitudinally extending parallel side surfaces 117 one of which is shown in FIG. 1, which side surfaces are spaced apart by a distance designated W in FIG. 3, that represents the width of support member 11.
- Heater element 12 (FIG. 1) is made of a conducting material such as iron-chrome aluminum that is prewound in coil form prior to assembly of element 12 to support member 11.
- Coil loops 13 have a diameter designated D in FIG. 3 which diameter is of a larger dimension than the width W of support member 11. It is desirable that diameter D of loops 13 be larger than the width W of support member 11 to ensure that loops 13 are spaced from longitudinally extending side surfaces 17 (FIG. 3).
- FIG. 3 it is a feature of the present invention to provide a heater element wherein adjacent coil loops 13 (FIG. 3) are spaced one from the other by tensioning means that stretch coil 12.
- a pair of fasteners such as eyelets 20 and 21 (FIG. 2) are provided at opposite ends 22 and 23 of coil 12 to secure coil 12 under tension to support member 11. Under this arrangement eyelets 20 and 21 maintain coil loops 13 in a stretched and spaced condition.
- a pair of terminal leads 24 and 25 (FIG. 1) are also secured to support member 11 by eyelets 20 and 21 respectively.
- Each lead 24, 25 includes a respective extension wire 26, 27 electrically interconnected to corresponding coil ends 22 and 23 (FIGS. 1 and 3).
- Cover strips 14 and 15 are formed of an insulating material such as mica paper to electrically insulate coil 12 from other conducting surfaces. Cover strips 14 and 15 also serve to conduct heat away from coil 12.
- a pair of U-shaped recesses 28 and 29 are provided in cover strip 14 (FIGS. 1 to 3) adjacent terminal leads 24 and 25 to permit clearance for extension wires 26 and 27.
- heater coil 12 is prewound in helical form (FIG. 4) with closely spaced coil loops 13. Support member 11 is then inserted through loops 13 of coil 12 (FIG. ),'or if desired coil 12 can be disposed around support member 11. Ends 22 and -23 of coil 12 are grasped and coil 12 is stretched for substantially the entire length of support member 11 (FIG. 6). After coil 12 has been stretched (FIG. 6) coil ends 22 and 23 and terminal leads 24 and 25 are secured to support member 11 by eyelets 20 and 21 respectively (FIG. I). In this manner coil 12 is secured under tension to support member 11 such that loops 13 (FIG. 6) are maintained ina stretched and spaced condition.
- coil loops 13 extend above and below support surfaces 16 of support member 11.
- the spacing between adjacent coil loops 13 is governed by the distance between eyelets 20 and 21 (FIG. 6) and the unstretched length of coil 12 (FIG. 4).
- a desired ratio of eyelet distance to unstretched coil length is approximately I to 3 to provide adequate loop spacing prior to assembling cover strips 14 and 15 to support member 11.
- Cover strips 14 and 15 are fastened to support member 11 over support surfaces 16 by a pair of eyelets 30 and 31 (FIG. 2) and which cover strips tend to press coil loops 13 toward support member 11.
- the minimum distance between pressed coil loops on opposite support surfaces 16 of support member 12 is governed by the thickness of the support member. I
- heater element is disposed in an electric appliance with cover strip 14, for instance, placed in direct contact against a heat sink surface such as a heat storage plate (not shown) thereby permitting heat from coil 12 to be conducted through strip 14 to the heat storage plate.
- cover strip 14 for instance, placed in direct contact against a heat sink surface such as a heat storage plate (not shown) thereby permitting heat from coil 12 to be conducted through strip 14 to the heat storage plate.
- a heat sink surface such as a heat storage plate (not shown)
- heater devices 10 can be electrically connected at extension wires 26 and 27 in series or parallel arrangement depending upon the heat and power requirements of a particular appliance.
- an advantage of the novel heater device includes the use of a heater coil element which is prewound separately of the support member and which coil element has a loop diameter larger than the width of the support member. Under this arrangement the support member can be easily inserted into the coil instead of winding individual coil loops thereon.
- a further advantage among others is that the spacing between adjacent coil loops is achieved and maintained by stretching the coil and securing the coil under tension to the support member. In accordance with this arrangement there is no need to provide serrations, notches, or other spacing means on the support member or to tightly wind the coil around the support member in order to maintain adequate spacing between individual loops.
- An electric heater comprising:
- cover members b. a pair of elongated cover members, one disposed on each side of the support member to sandwich the latter therebetween, said cover members being electrically insulative and heat conductive,
- a stretched helical resilient resistance element having loops wound about the support member and being secured adjacent its ends to said support member, said ends being adapted for electrical connection to a source of energy and said loops having diameters of larger dimensions than the dimension of the support member, said resistance element extending longitudinally of the support member with the loops thereof being in contact with said cover members, and
Landscapes
- Resistance Heating (AREA)
- Hair Curling (AREA)
Abstract
Description
Claims (4)
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US00047243A US3821517A (en) | 1970-06-18 | 1970-06-18 | Electric heater device |
GB08667/71A GB1293495A (en) | 1970-06-18 | 1971-06-02 | Electric heater device |
AU29695/71A AU2969571A (en) | 1970-06-18 | 1971-06-04 | Electric heater device |
DE19712128647 DE2128647A1 (en) | 1970-06-18 | 1971-06-04 | Electric heating element and process for its manufacture |
CA115548A CA938330A (en) | 1970-06-18 | 1971-06-14 | Electric heater device |
NL7108354A NL7108354A (en) | 1970-06-18 | 1971-06-17 | |
FR7122235A FR2099214A5 (en) | 1970-06-18 | 1971-06-18 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US00047243A US3821517A (en) | 1970-06-18 | 1970-06-18 | Electric heater device |
Publications (1)
Publication Number | Publication Date |
---|---|
US3821517A true US3821517A (en) | 1974-06-28 |
Family
ID=21947862
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US00047243A Expired - Lifetime US3821517A (en) | 1970-06-18 | 1970-06-18 | Electric heater device |
Country Status (7)
Country | Link |
---|---|
US (1) | US3821517A (en) |
AU (1) | AU2969571A (en) |
CA (1) | CA938330A (en) |
DE (1) | DE2128647A1 (en) |
FR (1) | FR2099214A5 (en) |
GB (1) | GB1293495A (en) |
NL (1) | NL7108354A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4320286A (en) * | 1979-12-07 | 1982-03-16 | Sierracin Corporation | Heater element |
US4384401A (en) * | 1979-12-07 | 1983-05-24 | Sierracin Corporation | Method for forming a heater element |
US4641423A (en) * | 1974-10-21 | 1987-02-10 | Fast Heat Element Manufacturing Co., Inc. | Method of making electrically heated nozzles and nozzle systems |
US5486682A (en) * | 1992-10-21 | 1996-01-23 | Acra Electric Corporation | Heater assembly for swaged cartridge heater and method of manufacture |
EP2073600A1 (en) | 2007-12-21 | 2009-06-24 | Tadeusz Tatarzynski | Collective heating unit, especially for electric heater |
EP2600689A1 (en) * | 2011-12-01 | 2013-06-05 | Miguel Marin Camara | Ultraflat heating assembly |
WO2018202961A1 (en) * | 2017-05-05 | 2018-11-08 | Texas De France (Cas) | Heating module for electric heating device |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103158321A (en) * | 2011-12-12 | 2013-06-19 | 致伸科技股份有限公司 | Laminator roller group heating device |
-
1970
- 1970-06-18 US US00047243A patent/US3821517A/en not_active Expired - Lifetime
-
1971
- 1971-06-02 GB GB08667/71A patent/GB1293495A/en not_active Expired
- 1971-06-04 AU AU29695/71A patent/AU2969571A/en not_active Expired
- 1971-06-04 DE DE19712128647 patent/DE2128647A1/en active Pending
- 1971-06-14 CA CA115548A patent/CA938330A/en not_active Expired
- 1971-06-17 NL NL7108354A patent/NL7108354A/xx unknown
- 1971-06-18 FR FR7122235A patent/FR2099214A5/fr not_active Expired
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4641423A (en) * | 1974-10-21 | 1987-02-10 | Fast Heat Element Manufacturing Co., Inc. | Method of making electrically heated nozzles and nozzle systems |
US4320286A (en) * | 1979-12-07 | 1982-03-16 | Sierracin Corporation | Heater element |
US4384401A (en) * | 1979-12-07 | 1983-05-24 | Sierracin Corporation | Method for forming a heater element |
US5486682A (en) * | 1992-10-21 | 1996-01-23 | Acra Electric Corporation | Heater assembly for swaged cartridge heater and method of manufacture |
EP2073600A1 (en) | 2007-12-21 | 2009-06-24 | Tadeusz Tatarzynski | Collective heating unit, especially for electric heater |
EP2600689A1 (en) * | 2011-12-01 | 2013-06-05 | Miguel Marin Camara | Ultraflat heating assembly |
WO2018202961A1 (en) * | 2017-05-05 | 2018-11-08 | Texas De France (Cas) | Heating module for electric heating device |
FR3066010A1 (en) * | 2017-05-05 | 2018-11-09 | Texas De France (Sas) | HEATING MODULE FOR ELECTRIC HEATING APPARATUS |
Also Published As
Publication number | Publication date |
---|---|
NL7108354A (en) | 1971-12-21 |
DE2128647A1 (en) | 1971-12-23 |
GB1293495A (en) | 1972-10-18 |
CA938330A (en) | 1973-12-11 |
FR2099214A5 (en) | 1972-03-10 |
AU2969571A (en) | 1972-12-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: MELLON BANK (EAST) NATIONAL ASSOCIATION, A NATIONA Free format text: LIEN;ASSIGNOR:REMINGTON PRODUCTS, INC.;REEL/FRAME:005368/0132 Effective date: 19900430 |
|
AS | Assignment |
Owner name: TEACHERS INSURANCE & ANNUITE ASSOCIATION OF AMERIC Free format text: LIEN;ASSIGNOR:REMINGTON PRODUCTS, INC., A CORP OFF DE;REEL/FRAME:005371/0686 Effective date: 19900627 Owner name: SUN LIFE ASSURANCE COMPANY,, MASSACHUSETTS Free format text: LIEN;ASSIGNOR:REMINGTON PRODUCTS, INC., A CORP OFF DE;REEL/FRAME:005371/0686 Effective date: 19900627 Owner name: MUTUAL TRUST LIFE INSURANCE COMPANY, C/O MIMLIC AS Free format text: LIEN;ASSIGNOR:REMINGTON PRODUCTS, INC., A CORP OFF DE;REEL/FRAME:005371/0686 Effective date: 19900627 |
|
AS | Assignment |
Owner name: TEACHERS INSURANCE & ANNUITY ASSOCIATION OF AMERIC Free format text: SECURITY INTEREST;ASSIGNOR:REMINGTON PRODUCTS, INC., A DE CORP.;REEL/FRAME:005475/0599 Effective date: 19901011 Owner name: MINISTERS LIFE - A MUTUAL LIFE INSURANCE COMPANY, Free format text: SECURITY INTEREST;ASSIGNOR:REMINGTON PRODUCTS, INC., A DE CORP.;REEL/FRAME:005475/0599 Effective date: 19901011 Owner name: MUTUAL SERVICE LIFE INSURANCE COMPANY, C/O MIMLIC Free format text: SECURITY INTEREST;ASSIGNOR:REMINGTON PRODUCTS, INC., A DE CORP.;REEL/FRAME:005475/0599 Effective date: 19901011 Owner name: NORTH ATLANTIC LIFE INSURANCE COMPANY OF AMERICA, Free format text: SECURITY INTEREST;ASSIGNOR:REMINGTON PRODUCTS, INC., A DE CORP.;REEL/FRAME:005475/0599 Effective date: 19901011 Owner name: MINNESOTA MUTUAL LIFE INSURANCE COMPANY OF AMERICA Free format text: SECURITY INTEREST;ASSIGNOR:REMINGTON PRODUCTS, INC., A DE CORP.;REEL/FRAME:005475/0599 Effective date: 19901011 Owner name: COMMERCIAL UNION LIFE INSURANCE COMPANY OF AMERICA Free format text: SECURITY INTEREST;ASSIGNOR:REMINGTON PRODUCTS, INC., A DE CORP.;REEL/FRAME:005475/0599 Effective date: 19901011 Owner name: AMERICAN INVESTORS LIFE INSURANCE COMPANY, KANSAS Free format text: SECURITY INTEREST;ASSIGNOR:REMINGTON PRODUCTS, INC., A DE CORP.;REEL/FRAME:005475/0599 Effective date: 19901011 |
|
AS | Assignment |
Owner name: REMINGTON PRODUCTS, INC., A DE CORP., CONNECTICUT Free format text: RELEASED BY SECURED PARTY;ASSIGNOR:MELLON BANK, N.A.;REEL/FRAME:006240/0653 Effective date: 19920803 Owner name: REMINGTON PRODUCTS, INC., A CORP. OF DE, CONNECTIC Free format text: RELEASED BY SECURED PARTY;ASSIGNORS:TEACHERS INSURANCE AND ANNUITY ASSOCIATION OF AMERICA;SUN LIFE ASSURANCE COMPANY OF CANADA;MUTUAL TRUST LIFE INSURANCE COMPANY;REEL/FRAME:006243/0654 Effective date: 19920812 Owner name: REMINGTONS PRODUCTS, INC., A CORP. OF DE, CONNECTI Free format text: RELEASED BY SECURED PARTY;ASSIGNORS:TEACHER INSURANCE AND ANNUITY ASSOCIATION OF AMERICAN;AMERICAN INVESTORS LIFE INSURANCE COMPANY;COMMERCIAL UNION LIFE INSURANCE COMPANY OF AMERICA C/O COMMERICAL UNION INVESTMENT MANAGEMENT CORP.;AND OTHERS;REEL/FRAME:006240/0643;SIGNING DATES FROM 19920804 TO 19920812 |