GB1175336A - Anti-Shock Control Devices for Electrically Heated Glass. - Google Patents

Anti-Shock Control Devices for Electrically Heated Glass.

Info

Publication number
GB1175336A
GB1175336A GB22882/68A GB2288268A GB1175336A GB 1175336 A GB1175336 A GB 1175336A GB 22882/68 A GB22882/68 A GB 22882/68A GB 2288268 A GB2288268 A GB 2288268A GB 1175336 A GB1175336 A GB 1175336A
Authority
GB
United Kingdom
Prior art keywords
contacts
metallic strip
resistor
load current
contact
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
Application number
GB22882/68A
Inventor
Daniel John Aisanich
Frederic Allen Richter
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.)
Ardco Inc
Original Assignee
Ardco Inc
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 Ardco Inc filed Critical Ardco Inc
Publication of GB1175336A publication Critical patent/GB1175336A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00Ohmic-resistance heating
    • H05B3/84Heating arrangements specially adapted for transparent or reflecting areas, e.g. for demisting or de-icing windows, mirrors or vehicle windshields
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D21/00Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/04Preventing the formation of frost or condensate
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/12Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to underload or no-load
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H5/00Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
    • H02H5/10Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to mechanical injury, e.g. rupture of line, breakage of earth connection
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B1/00Details of electric heating devices
    • H05B1/02Automatic switching arrangements specially adapted to apparatus ; Control of heating devices
    • H05B1/0227Applications
    • H05B1/023Industrial applications
    • H05B1/0236Industrial applications for vehicles
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/035Electrical circuits used in resistive heating apparatus

Abstract

1,175,336. Protective arrangements. ARDCO Inc. 14 May, 1968, No. 22882/68. Heading H2K. [Also in Divisions F4 and H1] A glass panel 12 having a heating element 28 thereon is protected by a switching device 10 having a first means 50 for causing the closing of the device 10 when power is applied and second means 42 responsive to the load current to maintain the device closed so that interruption of the load current, e.g. due to breakage of the panel causes the opening of the switch device. As shown, the device 10 is a thermal relay having three fixed contacts 46 ... 48 and a moving contact 44 on a bi-metallic strip 42 heated by a heating resistor 50 when power is applied. The bi-metallic strip then deflects so that the contact 44 is brought into engagement with the contact 48. This completes the circuit for the panel heater 28 and disconnects the resistor 50, the relay being maintained closed by the heating of the bi-metallic strip 42 by the load current flowing through it. When the load current is interrupted, the bi-metallic strip 42 cools opening contacts 44, 48 and closing contacts 44, 47 so that the bi-metallic strip is heated by a resistor 52 and remains in a central position to prevent repeated interruption and restoration of the supply to the element 28. In a modified arrangement, Fig. 6 (not shown), the resistor 52 is connected between fixed contacts 46, 47. In other arrangements, Figs. 2, 4 and 5 (not shown), the thermal relay has two fixed contacts and the first means is a heating resistor connected across those contacts. Fig. 3 (not shown), illustrates an arrangement in which the switching device is an electromagnetic relay having a coil connected across its contact and a coil connected in series with its contacts.
GB22882/68A 1966-12-08 1968-05-14 Anti-Shock Control Devices for Electrically Heated Glass. Expired GB1175336A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US600201A US3526753A (en) 1966-12-08 1966-12-08 Anti-shock control devices for electrically heated glass

Publications (1)

Publication Number Publication Date
GB1175336A true GB1175336A (en) 1969-12-23

Family

ID=24402698

Family Applications (1)

Application Number Title Priority Date Filing Date
GB22882/68A Expired GB1175336A (en) 1966-12-08 1968-05-14 Anti-Shock Control Devices for Electrically Heated Glass.

Country Status (2)

Country Link
US (1) US3526753A (en)
GB (1) GB1175336A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2131143A (en) * 1982-11-11 1984-06-13 Bejam Group Plc Preventing misting of refrigerated enclosure transparent doors
GB2192505A (en) * 1986-05-02 1988-01-13 Valor Heating Ltd Safety means for use with a heating or cooking appliance

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH520225A (en) * 1969-10-27 1972-03-15 Ellenberger & Poensgen Electrothermal relay for locking washing machine doors
US3585355A (en) * 1969-12-22 1971-06-15 Univ Iowa State Res Found Contamination resistant insulator
US3655939A (en) * 1970-11-16 1972-04-11 Anthony S Mfg Co Safety device for multi-pane glass refrigerator doors
US3870985A (en) * 1973-10-01 1975-03-11 Fasco Industries Thermostatic switch with solid state heater
US3941975A (en) * 1974-02-27 1976-03-02 Ira W. Fine Glass panel circuit breaker
US3876862A (en) * 1974-02-27 1975-04-08 Irvin Newman Electrically-energized glass panel and circuit breaker combination
US4031356A (en) * 1975-11-20 1977-06-21 Akitoshi Niibe Heat panel safety system
US4306140A (en) * 1979-11-14 1981-12-15 Anthony's Manufacturing Company, Inc. Insulative multi-pane heated window structure
SE444636B (en) * 1982-10-05 1986-04-28 Termofrost Sweden Ab GLASDORR INTENDED TO BE USED FOR REFRIGERATING AND COLD SPACE
US4894514A (en) * 1988-07-05 1990-01-16 Ppg Industries, Inc. Heated transparency with malfunction detection means
US4902875A (en) * 1988-11-04 1990-02-20 Ppg Industries, Inc. Power discontinuity sensor for a dual feed heatable windshield
DK0894935T3 (en) * 1997-07-31 2004-03-08 Saint Gobain Insulating glass element

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2403803A (en) * 1944-09-21 1946-07-09 Gen Electric Electric blanket
US2417778A (en) * 1945-08-27 1947-03-18 Mcgraw Electric Co Thermal reluctance rod thermalretarder for electric water heaters
US2448289A (en) * 1946-06-05 1948-08-31 Thermo Electric Mfg Company Temperature control apparatus
US2557905A (en) * 1946-09-06 1951-06-19 Budd Co Electric heating control
US2499906A (en) * 1947-07-23 1950-03-07 George W Crise Thermostatic control for electrical heating elements
US2806118A (en) * 1948-12-31 1957-09-10 Bendix Aviat Corp Control system for eliminating ice from a transparent windshield panel
US2756382A (en) * 1953-06-30 1956-07-24 Robert C Wuerth System and device for prolonging the life of current energized filamentary elements
US2914637A (en) * 1956-01-30 1959-11-24 Robert C Wuerth System and device for prolonging the life of current energized filamentary elements
US2898433A (en) * 1956-08-29 1959-08-04 Libbey Owens Ford Glass Co De-icing windows
US2945933A (en) * 1957-11-14 1960-07-19 Cts Corp Electric circuit controlling device
US3330942A (en) * 1964-04-01 1967-07-11 Sierracin Corp Temperature control system
US3379859A (en) * 1966-05-26 1968-04-23 Libbey Owens Ford Glass Co Electrically heated transparent panel and prtective circuit therefor
US3449551A (en) * 1967-09-05 1969-06-10 Ardco Inc Antishock control devices for electrically heated glass panels or the like

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2131143A (en) * 1982-11-11 1984-06-13 Bejam Group Plc Preventing misting of refrigerated enclosure transparent doors
GB2192505A (en) * 1986-05-02 1988-01-13 Valor Heating Ltd Safety means for use with a heating or cooking appliance

Also Published As

Publication number Publication date
US3526753A (en) 1970-09-01

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee