US2442830A - Temperature switch - Google Patents

Temperature switch Download PDF

Info

Publication number
US2442830A
US2442830A US651331A US65133146A US2442830A US 2442830 A US2442830 A US 2442830A US 651331 A US651331 A US 651331A US 65133146 A US65133146 A US 65133146A US 2442830 A US2442830 A US 2442830A
Authority
US
United States
Prior art keywords
switch
temperature switch
contact
piece
insulator
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
US651331A
Inventor
Clifford D Spracher
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to US651331A priority Critical patent/US2442830A/en
Application granted granted Critical
Publication of US2442830A publication Critical patent/US2442830A/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
    • H01H37/74—Switches in which only the opening movement or only the closing movement of a contact is effected by heating or cooling
    • H01H37/76—Contact member actuated by melting of fusible material, actuated due to burning of combustible material or due to explosion of explosive material

Definitions

  • My invention relates to temperature switches for stopping internal combustion engines although it might also be used in other places.
  • the general object of my invention is to provide a means of stopping the engine in case anything goes wrong which causes it to over-heat.
  • the drawing is a detailed sectional view of the temperature switch.
  • My switch comprises, namely, a body I, an insulator 2, formed of suitable insulating material such as ceramics, contact screw 3, lower contact piece 4, spring 5, and operating element 6.
  • the threaded portion l of switch is screwed into the water-jacket of engine so that end of switch containing element 6 is surrounded by the water.
  • the lower end of contact piece 4 is flared out as shown at Ill, so that it cannot slip through element 6 until element has melted.
  • the lower portion of switch which surrounds element 6 has an indentation II, so that element 6 cannot slip up until it has melted.
  • a temperature switch comprising a body formed as one piece, an insulator fixedly mounted in the body, a contact screw mounted in the insulator, and extending through said insulator, a contact pin, a fuseable metal in the lower part of said body said contact pin being imbedded in the fuseable material, said body being indented,

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Fuses (AREA)

Description

June 8, 1948. c SPRACHER 2,442,830
TEMPERATURE SWITCH Filed March 1, 1946 8 INSULATDR 9 z IN V EN TOR.
point of element 6.
element 6 has Patented June 8, 1948 UNITED STATES PATENT OFFICE TEMPERATURE SWITCH Clifford D. Spracher, Downey, Calif. Application March 1, 1946, Serial No. 651,331
1 Claim.
My invention relates to temperature switches for stopping internal combustion engines although it might also be used in other places.
The general object of my invention is to provide a means of stopping the engine in case anything goes wrong which causes it to over-heat.
Other objects, advantages, and features of invention may appear in the accompanying drawing, detailed description and the appended claim.
The drawing is a detailed sectional view of the temperature switch.
My switch comprises, namely, a body I, an insulator 2, formed of suitable insulating material such as ceramics, contact screw 3, lower contact piece 4, spring 5, and operating element 6.
In operation, the threaded portion l of switch is screwed into the water-jacket of engine so that end of switch containing element 6 is surrounded by the water.
In case well say the water pump Or fan belt breaks which cause engine to overheat and the temperature of said water reaches the melting The element 6 then melts and releases lower contact piece 4, so spring 5 can raise piece 4 to ground contact screw 3, which is insulated by insulator 2.
To reset switch simply remove nuts 8 and 9, then heat lower end of switch to melt element 6 and push screw 3 down (which will in turn force contact piece 4 down) and hold it down until cooled. Then replace nuts 8 and 9 and switch is ready for use again.
The lower end of contact piece 4 is flared out as shown at Ill, so that it cannot slip through element 6 until element has melted.
The lower portion of switch which surrounds element 6 has an indentation II, so that element 6 cannot slip up until it has melted.
The flared out end of piece 4 and the indentation ll of this switch are the main secrets oi. its successful operation.
2 Without those features the switch will not work successfully as it may ground screw 3 ten or twenty degrees before the melting point of element 6, due to expansion and contraction of surrounding metal of element 6 and contact piece 4 Having described only a typical, preferred form of my invention, I do not wish to limit myself to the specific details set forth, but wish to reserve to myself any changes or variations that may appear to those skilled in the art or fall Within the space of the following claim,
Having described my invention, I claim.
A temperature switch comprising a body formed as one piece, an insulator fixedly mounted in the body, a contact screw mounted in the insulator, and extending through said insulator, a contact pin, a fuseable metal in the lower part of said body said contact pin being imbedded in the fuseable material, said body being indented,
the indentation extending into the fuseable material, a disk situated in the body and a spring resting on the disk, and pressing against the contact pin whereby said pin is urged into engagement with the contact screw.
CLIFFORD D. SPRACHER.
REFERENCES CITED The following references file of this patent:
UNITED STATES PATENTS are of record in the
US651331A 1946-03-01 1946-03-01 Temperature switch Expired - Lifetime US2442830A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US651331A US2442830A (en) 1946-03-01 1946-03-01 Temperature switch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US651331A US2442830A (en) 1946-03-01 1946-03-01 Temperature switch

Publications (1)

Publication Number Publication Date
US2442830A true US2442830A (en) 1948-06-08

Family

ID=24612479

Family Applications (1)

Application Number Title Priority Date Filing Date
US651331A Expired - Lifetime US2442830A (en) 1946-03-01 1946-03-01 Temperature switch

Country Status (1)

Country Link
US (1) US2442830A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2704314A (en) * 1954-01-04 1955-03-15 Clifford D Spracher Multiple contact electric switch
US2704840A (en) * 1951-04-28 1955-03-22 Morse Signal Devices Fire alarm system
US2817734A (en) * 1956-03-16 1957-12-24 Levy Morris Fire alarms
US2875298A (en) * 1956-08-28 1959-02-24 Glenton Ind Inc Thermal fuse
US2919320A (en) * 1956-07-25 1959-12-29 Bendix Aviat Corp Diaphragm-type pressure-actuated switch and method of fabricating same
US2934628A (en) * 1958-08-25 1960-04-26 Networks Electronic Corp Hermetically sealed temperature sensitive non-resettable relay
US2955179A (en) * 1958-09-26 1960-10-04 Filtron Company Inc Control device
US3420217A (en) * 1967-07-31 1969-01-07 Paul R Powell Safety device for internal combustion engine
US3782358A (en) * 1972-10-04 1974-01-01 Havir Mfg Co Engine temperature guard

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE429123C (en) * 1924-09-30 1926-05-19 Hermann Mayer Safety device against overheating of the coolant in internal combustion engines
US1685136A (en) * 1925-01-19 1928-09-25 Herbert D Montgomery Thermostatically-controlled circuit closer
US2029097A (en) * 1933-12-15 1936-01-28 Garner Joseph Electric fire alarm

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE429123C (en) * 1924-09-30 1926-05-19 Hermann Mayer Safety device against overheating of the coolant in internal combustion engines
US1685136A (en) * 1925-01-19 1928-09-25 Herbert D Montgomery Thermostatically-controlled circuit closer
US2029097A (en) * 1933-12-15 1936-01-28 Garner Joseph Electric fire alarm

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2704840A (en) * 1951-04-28 1955-03-22 Morse Signal Devices Fire alarm system
US2704314A (en) * 1954-01-04 1955-03-15 Clifford D Spracher Multiple contact electric switch
US2817734A (en) * 1956-03-16 1957-12-24 Levy Morris Fire alarms
US2919320A (en) * 1956-07-25 1959-12-29 Bendix Aviat Corp Diaphragm-type pressure-actuated switch and method of fabricating same
US2875298A (en) * 1956-08-28 1959-02-24 Glenton Ind Inc Thermal fuse
US2934628A (en) * 1958-08-25 1960-04-26 Networks Electronic Corp Hermetically sealed temperature sensitive non-resettable relay
US2955179A (en) * 1958-09-26 1960-10-04 Filtron Company Inc Control device
US3420217A (en) * 1967-07-31 1969-01-07 Paul R Powell Safety device for internal combustion engine
US3782358A (en) * 1972-10-04 1974-01-01 Havir Mfg Co Engine temperature guard

Similar Documents

Publication Publication Date Title
US2442830A (en) Temperature switch
US3017541A (en) Glow plug igniter
US2235774A (en) Cleat device
US2178659A (en) Glow plug for internal combustion engines
US2759066A (en) Temperature responsive switch
US2507365A (en) Temperature responsive switch
US3488545A (en) Spark plug with a center insulator which covers the end of the shell
US3322918A (en) Surface sensing bimetal thermostatic switch
US1935862A (en) Spark plug
US3082306A (en) Thermo-responsive switch
US3113232A (en) Low tension spark plug
US1529176A (en) Temperature-indicating device
US2168019A (en) Spark plug
US3044458A (en) Electronic starter plug for diesel engines
US2469492A (en) Screw-in circuit breaker
US1331038A (en) A corpo
US2325024A (en) Spark plug cooling means
GB428874A (en) Improvements in electric switches specially applicable to switches for thermostats
JPS5496977A (en) Semiconductor device
US3265539A (en) Gas burner provided with a thermocouple element pin contact catch
US3329788A (en) Thermally controlled switch
US1174157A (en) Electric sparking device.
US1570687A (en) Thermal switch for electric irons
US2017482A (en) Device for preventing overheating of generators
US3143634A (en) Engine heater