GB1043576A - Improvements in electrical control switch assemblies for electrically heated devicessuch as bedcovers - Google Patents
Improvements in electrical control switch assemblies for electrically heated devicessuch as bedcoversInfo
- Publication number
- GB1043576A GB1043576A GB14433/64A GB1443364A GB1043576A GB 1043576 A GB1043576 A GB 1043576A GB 14433/64 A GB14433/64 A GB 14433/64A GB 1443364 A GB1443364 A GB 1443364A GB 1043576 A GB1043576 A GB 1043576A
- Authority
- GB
- United Kingdom
- Prior art keywords
- contacts
- push
- button
- switch
- close
- 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
- 230000000712 assembly Effects 0.000 title 1
- 238000000429 assembly Methods 0.000 title 1
- 239000004020 conductor Substances 0.000 abstract 1
- 230000000881 depressing effect Effects 0.000 abstract 1
- 230000000994 depressogenic effect Effects 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 238000013021 overheating Methods 0.000 abstract 1
- 230000001681 protective effect Effects 0.000 abstract 1
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
- H05B1/0227—Applications
- H05B1/0252—Domestic applications
- H05B1/0272—For heating of fabrics
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/1906—Control of temperature characterised by the use of electric means using an analogue comparing device
- G05D23/1909—Control of temperature characterised by the use of electric means using an analogue comparing device whose output amplitude can only take two discrete values
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/1906—Control of temperature characterised by the use of electric means using an analogue comparing device
- G05D23/1913—Control of temperature characterised by the use of electric means using an analogue comparing device delivering a series of pulses
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
- G05D23/24—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature the sensing element having a resistance varying with temperature, e.g. a thermistor
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/68—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having two operating members, one for opening and one for closing the same set of contacts
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Textile Engineering (AREA)
- Push-Button Switches (AREA)
- Control Of Resistance Heating (AREA)
Abstract
1,043,576. Push-button retractive switches; protective arrangements. GENERAL ELECTRIC CO. April 8, 1964 [April 30, 1963], No. 14433/64. Headings H2B and H2K. A switch assembly includes a pair of pushbuttons such as 13, each manually depressible to close contacts 15, 16 or 17, 18, and each also having a flange 26, Fig. 2 (not shown), engaging a U-shaped contact member 19 to open contacts 19b, 20, acting as a safety switch. The switch assembly controls the circuit for an electric bedcover heated by a heating resistance 38. Contacts 15, 16 are closed by depressing pushbutton 13 to initially energize relay coil 36 to close relay switch 37 which remains closed under normal conditions. Overheating causes a layer 15 of material normally insulating to become conducting and allow current flow between conductors 43 and 44, thus lowering the voltage to coil 36 and causing relay switch 37 to open. Closing of contacts 17, 18 by the other push-button (Fig. 2, not shown), shunts relay coil 36 and opens relay switch 37 manually if required. Whenever a push-button is depressed, the safety switch contacts 19b, 20 open first to interrupt the heater circuit before the contacts 15, 16 or 17, 18 close. Each pushbutton is guided for movement in the housing 10 by a projection 28 on push-button 13, moving in a guide groove 31.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US276929A US3246086A (en) | 1963-04-30 | 1963-04-30 | Switch assembly and circuit for electrically heated bedcovers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1043576A true GB1043576A (en) | 1966-09-21 |
Family
ID=23058680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB14433/64A Expired GB1043576A (en) | 1963-04-30 | 1964-04-08 | Improvements in electrical control switch assemblies for electrically heated devicessuch as bedcovers |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3246086A (en) |
| JP (1) | JPS418097B1 (en) |
| AT (1) | AT263968B (en) |
| CH (1) | CH409170A (en) |
| ES (1) | ES299261A1 (en) |
| GB (1) | GB1043576A (en) |
| NL (1) | NL144118B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11195399B2 (en) | 2017-09-06 | 2021-12-07 | Carrier Corporation | Heat alarm unit |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2806907A (en) * | 1953-10-30 | 1957-09-17 | Mazzola Ambrose | Electrical control switch |
| US2879345A (en) * | 1956-02-01 | 1959-03-24 | Jr Donald P Mossman | Selective switching apparatus |
| US2935590A (en) * | 1958-01-23 | 1960-05-03 | Standard Oil Co | Temperature control device |
| US2987602A (en) * | 1959-01-26 | 1961-06-06 | Eastman Kodak Co | Temperature control system for a photographic copying apparatus |
| US3137773A (en) * | 1961-10-30 | 1964-06-16 | American Seating Co | Manual control for a motorized hospital bed |
-
1963
- 1963-04-30 US US276929A patent/US3246086A/en not_active Expired - Lifetime
-
1964
- 1964-04-08 GB GB14433/64A patent/GB1043576A/en not_active Expired
- 1964-04-22 CH CH523564A patent/CH409170A/en unknown
- 1964-04-28 JP JP2409364A patent/JPS418097B1/ja active Pending
- 1964-04-28 ES ES0299261A patent/ES299261A1/en not_active Expired
- 1964-04-29 NL NL646404734A patent/NL144118B/en unknown
- 1964-04-30 AT AT388664A patent/AT263968B/en active
Also Published As
| Publication number | Publication date |
|---|---|
| JPS418097B1 (en) | 1966-04-27 |
| ES299261A1 (en) | 1964-06-16 |
| NL144118B (en) | 1974-11-15 |
| NL6404734A (en) | 1964-11-02 |
| AT263968B (en) | 1968-08-12 |
| US3246086A (en) | 1966-04-12 |
| CH409170A (en) | 1966-03-15 |
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