US3496511A - Thermostatic switch for small electrical appliances - Google Patents

Thermostatic switch for small electrical appliances Download PDF

Info

Publication number
US3496511A
US3496511A US697908A US3496511DA US3496511A US 3496511 A US3496511 A US 3496511A US 697908 A US697908 A US 697908A US 3496511D A US3496511D A US 3496511DA US 3496511 A US3496511 A US 3496511A
Authority
US
United States
Prior art keywords
housing
actuating member
switch
contacts
thermostatic switch
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
Application number
US697908A
Other languages
English (en)
Inventor
Robert J Colavecchio
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.)
Elmwood Sensors Inc
Original Assignee
Elmwood Sensors 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 Elmwood Sensors Inc filed Critical Elmwood Sensors Inc
Application granted granted Critical
Publication of US3496511A publication Critical patent/US3496511A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H37/00—Thermally-actuated switches
    • H01H37/02—Details
    • H01H37/32—Thermally-sensitive members
    • H01H37/52—Thermally-sensitive members actuated due to deflection of bimetallic element
    • H01H37/54—Thermally-sensitive members actuated due to deflection of bimetallic element wherein the bimetallic element is inherently snap acting
    • H01H37/5427—Thermally-sensitive members actuated due to deflection of bimetallic element wherein the bimetallic element is inherently snap acting encapsulated in sealed miniaturised housing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H37/00—Thermally-actuated switches
    • H01H37/02—Details
    • H01H37/32—Thermally-sensitive members
    • H01H37/52—Thermally-sensitive members actuated due to deflection of bimetallic element
    • H01H37/54—Thermally-sensitive members actuated due to deflection of bimetallic element wherein the bimetallic element is inherently snap acting
    • H01H2037/549—Details of movement transmission between bimetallic snap element and contact

Definitions

  • terminals 22 and 24 that are adapted to be electrically connected to suitable electrical conductor leads, the terminals 22 and 24 being spaced from each other and thus being insulated by the non-metallic glass base 16.
  • fixed contacts 26 and 28 Mounted on the innermost ends of the terminals 22 and 24 are fixed contacts 26 and 28, the contacts 26 and 28 being disposed within the housing 12 and in a chamber 30 as defined by the annular wall 14, base 16 and cap 20.
  • a spring arm 32 Secured to the uppermost end of the terminal 22 and disposed in electrical communication with the fixed contact 26 is a spring arm 32, on the free end of which a movable contact 34 is mounted. It is seen that when the movable contact 34 is moved into engagement with the fixed contact 28, electrical communication is established between the contacts 26, 28 and their respective terminals 22 and 24. A circuit is then completed between the terminals 22 and 24 and the leads to which they are connected.
  • the thermostatic switch 10 is formed of relatively few parts, yet is extremely effective in producing the required electrical communication between the terminals 22 and 24 when the conditions so require that a circuit exist between these terminals and the leads to which they are attached.
  • the actuating disc 36 By employing the actuating disc 36 in the manner as illustrated, a much more simple construction is produced, and the axial length of the housing 12 is also materially decreased so as to enable the switch 10 to be employed in devices that require miniaturization. All of the parts employed in the switch are durable and insure ,efliciency in operation yet are relatively inexpensive, thereby resulting in a switch that may be constructed and assembled with a minimum of cost.

Landscapes

  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Thermally Actuated Switches (AREA)
US697908A 1968-01-15 1968-01-15 Thermostatic switch for small electrical appliances Expired - Lifetime US3496511A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US69790868A 1968-01-15 1968-01-15
GB4966469 1969-10-09
DE1951858A DE1951858C3 (de) 1968-01-15 1969-10-15 Thermostatschalter
FR696937166A FR2064025B1 (enrdf_load_stackoverflow) 1968-01-15 1969-10-29

Publications (1)

Publication Number Publication Date
US3496511A true US3496511A (en) 1970-02-17

Family

ID=27430961

Family Applications (1)

Application Number Title Priority Date Filing Date
US697908A Expired - Lifetime US3496511A (en) 1968-01-15 1968-01-15 Thermostatic switch for small electrical appliances

Country Status (4)

Country Link
US (1) US3496511A (enrdf_load_stackoverflow)
DE (1) DE1951858C3 (enrdf_load_stackoverflow)
FR (1) FR2064025B1 (enrdf_load_stackoverflow)
GB (1) GB1267050A (enrdf_load_stackoverflow)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4334210A (en) * 1980-11-03 1982-06-08 Texas Instruments Incorporated Thermostatic switch and method of making
JPS6412442A (en) * 1987-06-30 1989-01-17 Emerson Electric Co Snapping operation thermostat its fitting structure and controller
US5973587A (en) * 1997-06-26 1999-10-26 Hofsaess; Marcel Temperature-dependent switch having a contact bridge
US6100784A (en) * 1997-01-03 2000-08-08 Hofsaess; Marcel Temperature-dependent switch with contact bridge
US6249211B1 (en) * 1998-06-18 2001-06-19 Marcel Hofsaess Temperature-dependent switch having a current transfer member
US20110102126A1 (en) * 2009-10-30 2011-05-05 Hanbecthistem Co., Ltd. Thermostat
US9911567B2 (en) * 2015-06-08 2018-03-06 Littlfuse, Inc. Disconnect switch with integrated thermal breaker
US11046146B2 (en) * 2015-10-29 2021-06-29 Bayerische Motoren Werke Aktiengesellschaft Control element

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT349794B (de) * 1976-06-25 1979-04-25 Electrovac Thermischer schalter
US4317098A (en) * 1980-01-28 1982-02-23 Elmwood Sensors, Inc. Grounded thermostat switch
GB8618372D0 (en) * 1986-07-28 1986-09-03 Otter Controls Ltd Thermal control units
GB2382465B (en) * 2001-11-14 2005-07-13 Otter Controls Ltd Improvements relating to thermally-responsive switches

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3023350A (en) * 1959-03-31 1962-02-27 Texas Instruments Inc Electrical switch means

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3023350A (en) * 1959-03-31 1962-02-27 Texas Instruments Inc Electrical switch means

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4334210A (en) * 1980-11-03 1982-06-08 Texas Instruments Incorporated Thermostatic switch and method of making
JPS6412442A (en) * 1987-06-30 1989-01-17 Emerson Electric Co Snapping operation thermostat its fitting structure and controller
EP0298009A3 (en) * 1987-06-30 1989-05-31 Emerson Electric Co. Thermostatic switch construction
US6100784A (en) * 1997-01-03 2000-08-08 Hofsaess; Marcel Temperature-dependent switch with contact bridge
US5973587A (en) * 1997-06-26 1999-10-26 Hofsaess; Marcel Temperature-dependent switch having a contact bridge
US6249211B1 (en) * 1998-06-18 2001-06-19 Marcel Hofsaess Temperature-dependent switch having a current transfer member
US20110102126A1 (en) * 2009-10-30 2011-05-05 Hanbecthistem Co., Ltd. Thermostat
US9911567B2 (en) * 2015-06-08 2018-03-06 Littlfuse, Inc. Disconnect switch with integrated thermal breaker
US11046146B2 (en) * 2015-10-29 2021-06-29 Bayerische Motoren Werke Aktiengesellschaft Control element

Also Published As

Publication number Publication date
FR2064025B1 (enrdf_load_stackoverflow) 1973-03-16
DE1951858A1 (de) 1971-04-22
DE1951858B2 (de) 1974-07-25
DE1951858C3 (de) 1975-03-06
GB1267050A (enrdf_load_stackoverflow) 1972-03-15
FR2064025A1 (enrdf_load_stackoverflow) 1971-07-16

Similar Documents

Publication Publication Date Title
US3403237A (en) Electrical switch having a one-piece actuator and spring arm structure
US3496511A (en) Thermostatic switch for small electrical appliances
GB2126421A (en) A thermal switch
US2444529A (en) Electrical switch
US3924213A (en) Thermostat
US3715699A (en) Thermostat with reset pin
US4319214A (en) Creepless, snap action thermostat
US3378663A (en) Pushbutton switch with improved guide means
US3978303A (en) Leaf spring switch
US2510021A (en) Snap action mechanism
US2439338A (en) Signal device for thermostatic switches
US2752454A (en) Externally resettable hermetically sealed thermostat
US2429770A (en) Electric snap-action switch
US3324261A (en) Snap switch means
US3355563A (en) Lost motion thermostatic electrical switch
US3553720A (en) Variable circuit timer with improved contact securing means
US3470517A (en) Thermostat with manual reset
US3675178A (en) Manual reset thermostat
US3317693A (en) Snap acting thermal disc with bent-over angulated leaf spring contact member
US2717936A (en) Thermostatic switch
US3014105A (en) Thermostatic controls
US3043937A (en) Electrical control means
US2513748A (en) Electric switch
US3146329A (en) Snap-acting electrical switch
US3120590A (en) Snap action switch