GB1242413A - Electric blankets - Google Patents
Electric blanketsInfo
- Publication number
- GB1242413A GB1242413A GB2876168A GB2876168A GB1242413A GB 1242413 A GB1242413 A GB 1242413A GB 2876168 A GB2876168 A GB 2876168A GB 2876168 A GB2876168 A GB 2876168A GB 1242413 A GB1242413 A GB 1242413A
- Authority
- GB
- United Kingdom
- Prior art keywords
- elements
- switch
- source
- series
- arrangement
- 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
Links
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
- H05B1/00—Details of electric heating devices
- H05B1/02—Automatic switching arrangements specially adapted to apparatus ; Control of heating devices
- H05B1/0202—Switches
- H05B1/0213—Switches using bimetallic elements
-
- 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
- H05B3/20—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater
- H05B3/34—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater flexible, e.g. heating nets or webs
- H05B3/342—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater flexible, e.g. heating nets or webs heaters used in textiles
-
- 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
- H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
- H05B2203/014—Heaters using resistive wires or cables not provided for in H05B3/54
-
- 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
- H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
- H05B2203/017—Manufacturing methods or apparatus for heaters
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Thermally Actuated Switches (AREA)
Abstract
1,242,413. Supply and protective apparatus for electric blankets. DREAMLAND ELECTRICAL APPLIANCES Ltd. 20 March, 1969 [26 April, 1968; 17 June, 1968], Nos. 19999/68 and 28761/68. Headings H2H and H2K. An electrically heated blanket or pad comprises two heating elements 16, 17 and a transformer 13 having a primary winding 14 and a secondary winding 15, the primary winding 14 being connected to an A.C. source 11, 12 by way of a switch 22 and the contact 19 of a bimetal switch, a further switch S/5 being provided whereby in one position of this latter switch, the elements 16, 17 are connected across the A.C. source 11, 12 in series and in the other position the elements are connected in parallel across the secondary winding 15. The contact 19 is operated by a heater element 18 carrying the blanket current and a diode 21 is connected in series with the elements 16, 17 when these are connected across the source 11, 12. The elements 16, 17 are wound as a dualconcentric cable as disclosed in Specification 1,155,118 and the arrangement is such that a short circuit between the elements 16, 17 will cause a fuse 20 to rupture. The arrangement is also such that in either position of the switch S/5 the R.M.S. value of the supply current is the same.
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19691920039 DE1920039A1 (en) | 1968-04-26 | 1969-04-19 | Electrically heated blanket or pillow |
FR6913269A FR2007051A1 (en) | 1968-04-26 | 1969-04-25 | |
NL6906395A NL6906395A (en) | 1968-04-26 | 1969-04-25 | |
CH634169A CH490779A (en) | 1968-04-26 | 1969-04-25 | Electric blanket or cushion |
BE732059D BE732059A (en) | 1968-04-26 | 1969-04-25 | |
US828092A US3591765A (en) | 1968-06-17 | 1969-05-19 | Electric blankets |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1999968 | 1968-04-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1242413A true GB1242413A (en) | 1971-08-11 |
Family
ID=10138653
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2876168A Expired GB1242413A (en) | 1968-04-26 | 1968-04-26 | Electric blankets |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1242413A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2127240A (en) * | 1982-09-14 | 1984-04-04 | Link 51 Ltd | Power control devices |
GB2266201A (en) * | 1992-04-11 | 1993-10-20 | Imetec Spa | Protective arrangement for electrically heated panels |
-
1968
- 1968-04-26 GB GB2876168A patent/GB1242413A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2127240A (en) * | 1982-09-14 | 1984-04-04 | Link 51 Ltd | Power control devices |
GB2266201A (en) * | 1992-04-11 | 1993-10-20 | Imetec Spa | Protective arrangement for electrically heated panels |
US5403992A (en) * | 1992-04-11 | 1995-04-04 | Imetec S.P.A. | Electrically heated panels |
GB2266201B (en) * | 1992-04-11 | 1996-02-28 | Imetec Spa | Improvements in or relating to electrically heated panels |
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