US2806376A - Thermal responsive device and method of calibration therefor - Google Patents

Thermal responsive device and method of calibration therefor Download PDF

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Publication number
US2806376A
US2806376A US413787A US41378754A US2806376A US 2806376 A US2806376 A US 2806376A US 413787 A US413787 A US 413787A US 41378754 A US41378754 A US 41378754A US 2806376 A US2806376 A US 2806376A
Authority
US
United States
Prior art keywords
container
responsive device
thermal responsive
actuator
spool
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
US413787A
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English (en)
Inventor
Charles W Wood
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.)
Standard Thomson Corp
Original Assignee
Standard Thomson Corp
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 Standard Thomson Corp filed Critical Standard Thomson Corp
Priority to US413787A priority Critical patent/US2806376A/en
Priority to GB28193/54A priority patent/GB801881A/en
Priority to FR1114431D priority patent/FR1114431A/fr
Priority to DEST9454A priority patent/DE1137233B/de
Application granted granted Critical
Publication of US2806376A publication Critical patent/US2806376A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/01—Control of temperature without auxiliary power
    • G05D23/02—Control of temperature without auxiliary power with sensing element expanding and contracting in response to changes of temperature
    • G05D23/021—Control of temperature without auxiliary power with sensing element expanding and contracting in response to changes of temperature the sensing element being a non-metallic solid, e.g. elastomer, paste
    • G05D23/022—Control of temperature without auxiliary power with sensing element expanding and contracting in response to changes of temperature the sensing element being a non-metallic solid, e.g. elastomer, paste the sensing element being placed within a regulating fluid flow
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K5/00—Measuring temperature based on the expansion or contraction of a material
    • G01K5/32—Measuring temperature based on the expansion or contraction of a material the material being a fluid contained in a hollow body having parts which are deformable or displaceable
    • G01K5/44—Measuring temperature based on the expansion or contraction of a material the material being a fluid contained in a hollow body having parts which are deformable or displaceable the body being a cylinder and piston
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H35/00—Switches operated by change of a physical condition
    • H01H35/24—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow
    • H01H35/245—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow actuated by the deformation of a body of elastic material
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S236/00—Automatic temperature and humidity regulation
    • Y10S236/05—Fusible
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49758—During simulated operation or operating conditions
    • Y10T29/4976—Temperature

Definitions

  • This invention relates to a thermal responsive device and a method of calibration therefor.
  • the invention relates particularly to a thermal responsive device for controlling and/ or indicating temperatures.
  • the invention relates more particularly to my application, Serial No. 333,707, filed on or about January 28, 1953.
  • This invention relates to a type of thermal responsive device in which a movable element or actuator is partially disposed within a container, which container also contains an expansible-contractible material such as disclosed in the aforementioned application, Serial No. 333,707.
  • the expansible-contractible material encircles or surrounds the actuator and receives an indication of the surrounding temperature through the walls of the container.
  • the expansible-contractible material receives heat through the walls of the container, this heat causes the expansible-contractible material to expand. Every portion of the expansible-contractible material which is heated expands.
  • the movement of the actuator must always be the same in response to a given temperature.
  • an object of this invention is to provide a thermal responsive device in which the operation of said device is accurate and responds readily to all changes in the temperature of the ambient.
  • Another object of the invention is to provide a method of calibration of such a thermal responsive device by changing the shape of the body portion of the device, which method may be easily and efficiently performed.
  • Another object of the invention is to provide a method of calibration, which method provides a container through which an indication of the surrounding temperature is accurately and swiftly transmitted by conduction through the walls thereof to the expansible material therein.
  • Another object of the invention is to provide a thermal device of the type disclosed above, the container of which is provided with efiective means for sealing the movable atent ice actuator to prohibit any leakage of liquid into the con-- tainer through the aperture which receives the actuator.
  • Figure 1 is a side sectional view of the thermal responsive device of this invention before the calibration thereof.
  • Figure 2 is a side elevational view of the thermal responsive device of this invention after the calibration thereof.
  • Figure 3 is a sectional view taken substantially on line 3-3 of Figure 2.
  • Figure 4 is a sectional View taken substantially on line 44 of Figure 3.
  • Figure 5 is a fragmentary side elevational exploded view disclosing the elements of the thermal responsive device during assembly thereof.
  • Figure 6 is a sectional view, similar to that of Figure 3, disclosing a modification in the body structure or container structure as a result of the calibration of the thermal responsive device.
  • the main body portion of the thermal responsive device of this invention comprises a container 10. Within the container 10 is disposed an elastic spool 12 which has a longitudinal bore 14, extending a portion of the length of the spool 12.
  • the spool 12 is provided at one end thereof with a flange 16.
  • the flange 16 may be adhesively attached to a disc cover 20 for increasing the ease of assembly, or the spool may be inserted within the container 10 without attachment of the flange 16 to the disc cover 20.
  • a sealing collar 21 is adhesively attached to the outer side of the disc cover 24
  • the container 10 is partially filled with an expansible-contractible material 24, such as disclosed in the aforesaid application. Air is then removed from the container 10.
  • the spool 12 is inserted into the container 10 so that the spool 12 engages the floor of the container and the expansive material 24 is retained between the container 10 and the spool 12 as shown in Figure 1.
  • An upper end 26 of the container 10 is bent inwardly, as shown in Figures 1 and 4, holding the cover 20 within the container 10.
  • the peripheral flange 16 is formed at an angle greater than 45 degrees, as shown in Figure 5.
  • the flange 16 has an annular groove 28 adjacent its angular periphery and concentric therewith.
  • the container 10 is provided with an annular inclined portion 30 adjacent the end 26.
  • the inclined portion 3t) is approximately 45 degrees with respect to the other portions of the container 10.
  • the periphery of the flange 16 is pushed inwardly by the inclined portion 30 when the spool is assembled within the container 10, as best shown in Figure 1.
  • the disc cover 20 is firmly held against the flange 16 of the spool 12 by means of the inwardly bent upper portions 26 of the container 10.
  • the cover 20 bears upon the flange 1 6 and the inclined periphery of the flange 16 presses against inclined portions 30 at the upper end of the container 10, thus providing effective sealing means within the container 10.
  • the sealing collar 21 on the outer side of the cover 20 has an aperture 32 therethrough.
  • the aperture 32 is tapered, thus having a larger opening at one end than at the other end, as best shown in Figure 5.
  • a portion of an actuator 34 having a tapered end 36 is positioned within the longitudinal bore of the spool 12, as shown in Figures 1 and 4.
  • the diameter of the body of the actuator 34 is larger than the diameter of the smaller opening of the aperture 32 of the collar 21 so that when the actuator 34 is positioned within the body portion of the spool 12', throughthe aperture'32' of the sealing collar 21, the upper'side of the collar 21"snugly seals around theactuator 34.
  • This sealing collar 21 thereby effectively seals around the body of .the actuator 34 so that fluid may not flow downwardly through'the'cover 20 and intothe longitudinal bore'14of'the.
  • spool 1Z5 Afterthe elements of the thermal responsive device are assembled; as shown in Figure 1, the thermal responsive deviceis then'calibrated so that'the actuator 34'will accurately respond to changes in temperature.
  • the calibration of the thermal expansive element is 'as follows: the thermal responsive device is placed into a fluid, the temperature of which is maintained at a constantvalue; for example, at 160 Fahrenheit. While the device is: so submerged, a plurality of' portions of' the side walls'of the container""'areforcedinwardly and depressed by any suitable means causing depressions 38. Thecontainer 10" then' assumes a general appearance,
  • the actuator 34 moves outwardly from within the container 10 a-further distance,- depending upon” the temperature. This is a resultof the expansion of the expansive-material 24 within the container 10, which forces the bodyof the spool 12' inwardly. This volumetric expansion" of the expan sive material 24 is always the same fora'given'temperw ture of the expansivematerial24. Also, the actuator returns to a predetermined position whenever the ambient temperature decreases. Therefore, on each occasion when the temperature of' the expansive materialreaches 160 or higher, the actuator 34 moves outwardly'from within the container forced by the'pressure of the expansive material upon the elastic spool 12.
  • Figure 6 is a sectional view similarv to that of Figure 3,.showing a larger number of portions of the enclosing walls of the container 10 pressed inwardly.
  • a container 40 similar to container 10 hasa plurality of depressions 42' as a result of the calibration process. The greater number of depressions causes the expansive material 24 to have a greater portion thereof directly in contact with the enclosing walls of the container or closely adjacent to the enclosing walls.
  • the outer end of the actuator 34 is provided with a threaded portion 44 for attachment to any suitable device for indication and/or control of temperature.
  • Fahrenheit or the operating temperature, chosen as an example for the calibration-of the thermal responsive device as discussed above, is only one temperature at which the thermal responsive device may be calibrated. Temperatures of a greater value or of a lesser value than 160 Fahrenheit might be used, depending upon the purpose for which the thermal responsive device is used.
  • thermo responsive device for operationat a given temperature
  • the thermal responsive device including a container having enclosing walls consisting of side walls and end walls, an elastic body within'the'container, an actuator extending into the container and into the elastic body, and an expansiblecontractible non-compressiblematerial within the contamer-filling aportionof the space between the enclosing walls and the'elastic body
  • the method comprising the steps of submerging-the container within a fluid, the temperature of which is maintained at the aforesaid given temperature, followed by pressing inwardly upon a plurality of portions of the side walls of the container until the space between the enclosing walls and the elastic body is completely filled with the expansible-contractible material, thus causing the actuator to move outwardly from the container, the inwardly extending side walls also providing a comparatively large amount of surface area adjacent the expansible-contractible material.
  • a thermal device including a container provided with enclosing walls open at one end thereof, a spool-comprising an elastic material retained within the container, the spool having a body portion and a centrally located longitudinal hole therein, an expansive material within the container surrounding the body portion of the spool, a cover member enclosing the open end of the container, the cover member being provided with an aperture therein, the cover having a depressed tapered portion encompassing the aperture, a tapered sealing.
  • the sealing collar attached to the cover member within the depressed portion, the sealing collar having an aperture therethrough, the aperture being tapered-and having a larger opening at one end thereof than at the other end thereof, the larger opening being positioned within the depressed portion of the cover member, and an actuator extending through the aperture in the sealing collar and through the aperture in the cover member and snugly positioned within the hole in the body of the spool.
  • a device comprising a container having rigid enclosing Walls, one of the enclosing walls having an aperture therethrough, an elongate elastic body within the container, the elastic body having an elongate bore therein open at one end of the body and extending a portion of the length thereof, the elastic body having a flange at the open end thereof, the open end of the bore being tapered outwardly, the enclosing wall of the container which has the aperture therethrough being provided with a tapered protuberance within the container and through which the aperture extends, the tapered protuberance fitting within the tapered open end of the bore of the elastic body, the flange of the elastic body being in engagement with the enclosing wall having the aperture therethrough, the container having diverging enclosing walls adjacent the enclosing wall which has the aperture therethrough, the diverging enclosing walls being substantially parallel to the tapered protuberance having the aperture therethrough, the flange of the elastic body having peripheral edge portions formed at an oblique
US413787A 1954-03-03 1954-03-03 Thermal responsive device and method of calibration therefor Expired - Lifetime US2806376A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US413787A US2806376A (en) 1954-03-03 1954-03-03 Thermal responsive device and method of calibration therefor
GB28193/54A GB801881A (en) 1954-03-03 1954-09-30 Improvements in or relating to thermal responsive devices
FR1114431D FR1114431A (fr) 1954-03-03 1954-10-01 Perfectionnements apportés aux dispositifs thermo-sensibles et à leurs procédés d'étalonnage
DEST9454A DE1137233B (de) 1954-03-03 1955-02-17 Thermostat

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US413787A US2806376A (en) 1954-03-03 1954-03-03 Thermal responsive device and method of calibration therefor

Publications (1)

Publication Number Publication Date
US2806376A true US2806376A (en) 1957-09-17

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US413787A Expired - Lifetime US2806376A (en) 1954-03-03 1954-03-03 Thermal responsive device and method of calibration therefor

Country Status (4)

Country Link
US (1) US2806376A (de)
DE (1) DE1137233B (de)
FR (1) FR1114431A (de)
GB (1) GB801881A (de)

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2994223A (en) * 1958-11-06 1961-08-01 Standard Thomson Corp Actuating device
US3016748A (en) * 1957-07-25 1962-01-16 Vernet Sergius Squeeze-push power element
US3034207A (en) * 1958-05-13 1962-05-15 Lipe Rollway Corp Method of making a thermal unit
US3046787A (en) * 1958-10-06 1962-07-31 Robertshaw Fulton Controls Co Fusion type thermal element
US3061920A (en) * 1958-11-19 1962-11-06 George Johnson Method of assembling members
US3080756A (en) * 1958-12-05 1963-03-12 Standard Thomson Corp Thermal responsive actuator
US3099878A (en) * 1958-10-16 1963-08-06 Standard Thomson Corp Method of assembly and calibration of thermal responsive device
US3112382A (en) * 1957-10-15 1963-11-26 Standard Thompson Corp Pressure-responsive actuating device
US3376631A (en) * 1965-07-12 1968-04-09 Thermal Hydraulics Corp Method of making a thermally responsive device
US3403560A (en) * 1966-08-11 1968-10-01 Walton Engineering Company Ltd Thermostat elements
US3575205A (en) * 1965-10-22 1971-04-20 Robertshaw Controls Co Pressure regulator construction
US4147976A (en) * 1977-10-13 1979-04-03 Wang Robert O Device for testing and calibrating moisture measuring instrument
US4227412A (en) * 1979-04-16 1980-10-14 Eaton Corporation Temperature responsive actuator
US4319391A (en) * 1978-07-24 1982-03-16 Eaton Corporation Method of constructing thermostatic valve power element extension
US4763834A (en) * 1987-06-25 1988-08-16 Standard-Thomson Corporation Valve seat structure for automotive thermostatic fluid control valve device
US5291847A (en) * 1991-08-01 1994-03-08 Webb Douglas C Autonomous propulsion within a volume of fluid
US5303552A (en) * 1992-07-06 1994-04-19 Webb Douglas C Compressed gas buoyancy generator powered by temperature differences in a fluid body
WO2018048365A1 (en) * 2016-09-09 2018-03-15 Kirpart Otomotiv Parcalari Sanayi Ve Ticaret Anonim Sirketi Fast response time wax based actuator by design change of vessel

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2806376A (en) * 1954-03-03 1957-09-17 Standard Thomson Corp Thermal responsive device and method of calibration therefor

Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US671697A (en) * 1900-03-29 1901-04-09 William H Hammon Packing-ring.
US699199A (en) * 1901-04-30 1902-05-06 Philo J Lockwood Gasket and seal for hydrocarbon-liquid containers.
US963645A (en) * 1909-10-01 1910-07-05 John S Pendleton Packing for piston-rods.
US1009303A (en) * 1909-01-20 1911-11-21 Ingersoll Rand Co Drill-steel chuck for stoneworking-machines.
US1285990A (en) * 1916-03-01 1918-11-26 Edward S Halsey Thermostatic heat-regulating valve mechanism.
US1348589A (en) * 1917-06-28 1920-08-03 Erwin W Seeger Furnace-regulator
GB436836A (en) * 1934-02-16 1935-10-18 Georges Gaston Royer Improvements in or relating to thermostats
US2039009A (en) * 1935-02-01 1936-04-28 Gen Motors Corp Grommet or the like
US2274234A (en) * 1940-11-09 1942-02-24 Chicago Belting Company Oil seal for moving parts
US2355043A (en) * 1942-04-13 1944-08-08 Sarco Company Inc Thermostatically controlled valve
CH254205A (de) * 1946-11-19 1948-04-30 Keller Max Abdichtung für Druckgefässe, insbesondere für Druckkocher.
US2453851A (en) * 1945-08-10 1948-11-16 Penn Electric Switch Co Thermostatic power element
US2507466A (en) * 1948-07-29 1950-05-09 Crane Co Unit providing mechanical movement responsive to temperature changes
US2714759A (en) * 1949-09-29 1955-08-09 Detroit Controls Corp Apparatus for closing and standardizing thermostatic power elements

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB531280A (en) * 1938-07-15 1941-01-01 Wilcolator Co Improvements in expansible fluid thermostats applicable also to other fluid-pressure-actuated devices
FR1026645A (fr) * 1949-10-28 1953-04-29 British Thermostat Co Ltd Perfectionnements dans les éléments sensibles à la chaleur
AT174486B (de) * 1951-09-12 1953-04-10 Bruno Ing Stuhl Thermostat mit flüssigem Ausdehnungskörper
US2806376A (en) * 1954-03-03 1957-09-17 Standard Thomson Corp Thermal responsive device and method of calibration therefor

Patent Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US671697A (en) * 1900-03-29 1901-04-09 William H Hammon Packing-ring.
US699199A (en) * 1901-04-30 1902-05-06 Philo J Lockwood Gasket and seal for hydrocarbon-liquid containers.
US1009303A (en) * 1909-01-20 1911-11-21 Ingersoll Rand Co Drill-steel chuck for stoneworking-machines.
US963645A (en) * 1909-10-01 1910-07-05 John S Pendleton Packing for piston-rods.
US1285990A (en) * 1916-03-01 1918-11-26 Edward S Halsey Thermostatic heat-regulating valve mechanism.
US1348589A (en) * 1917-06-28 1920-08-03 Erwin W Seeger Furnace-regulator
GB436836A (en) * 1934-02-16 1935-10-18 Georges Gaston Royer Improvements in or relating to thermostats
US2039009A (en) * 1935-02-01 1936-04-28 Gen Motors Corp Grommet or the like
US2274234A (en) * 1940-11-09 1942-02-24 Chicago Belting Company Oil seal for moving parts
US2355043A (en) * 1942-04-13 1944-08-08 Sarco Company Inc Thermostatically controlled valve
US2453851A (en) * 1945-08-10 1948-11-16 Penn Electric Switch Co Thermostatic power element
CH254205A (de) * 1946-11-19 1948-04-30 Keller Max Abdichtung für Druckgefässe, insbesondere für Druckkocher.
US2507466A (en) * 1948-07-29 1950-05-09 Crane Co Unit providing mechanical movement responsive to temperature changes
US2714759A (en) * 1949-09-29 1955-08-09 Detroit Controls Corp Apparatus for closing and standardizing thermostatic power elements

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3016748A (en) * 1957-07-25 1962-01-16 Vernet Sergius Squeeze-push power element
US3112382A (en) * 1957-10-15 1963-11-26 Standard Thompson Corp Pressure-responsive actuating device
US3034207A (en) * 1958-05-13 1962-05-15 Lipe Rollway Corp Method of making a thermal unit
US3046787A (en) * 1958-10-06 1962-07-31 Robertshaw Fulton Controls Co Fusion type thermal element
DE1141804B (de) * 1958-10-06 1962-12-27 Robertshaw Fulton Controls Co Dichtung fuer ein temperaturempfindliches Mess-, Regel- oder Steuerglied
US3099878A (en) * 1958-10-16 1963-08-06 Standard Thomson Corp Method of assembly and calibration of thermal responsive device
US2994223A (en) * 1958-11-06 1961-08-01 Standard Thomson Corp Actuating device
US3061920A (en) * 1958-11-19 1962-11-06 George Johnson Method of assembling members
US3080756A (en) * 1958-12-05 1963-03-12 Standard Thomson Corp Thermal responsive actuator
US3376631A (en) * 1965-07-12 1968-04-09 Thermal Hydraulics Corp Method of making a thermally responsive device
US3575205A (en) * 1965-10-22 1971-04-20 Robertshaw Controls Co Pressure regulator construction
US3403560A (en) * 1966-08-11 1968-10-01 Walton Engineering Company Ltd Thermostat elements
US4147976A (en) * 1977-10-13 1979-04-03 Wang Robert O Device for testing and calibrating moisture measuring instrument
US4319391A (en) * 1978-07-24 1982-03-16 Eaton Corporation Method of constructing thermostatic valve power element extension
US4227412A (en) * 1979-04-16 1980-10-14 Eaton Corporation Temperature responsive actuator
US4763834A (en) * 1987-06-25 1988-08-16 Standard-Thomson Corporation Valve seat structure for automotive thermostatic fluid control valve device
US5291847A (en) * 1991-08-01 1994-03-08 Webb Douglas C Autonomous propulsion within a volume of fluid
US5303552A (en) * 1992-07-06 1994-04-19 Webb Douglas C Compressed gas buoyancy generator powered by temperature differences in a fluid body
WO2018048365A1 (en) * 2016-09-09 2018-03-15 Kirpart Otomotiv Parcalari Sanayi Ve Ticaret Anonim Sirketi Fast response time wax based actuator by design change of vessel

Also Published As

Publication number Publication date
DE1137233B (de) 1962-09-27
FR1114431A (fr) 1956-04-12
GB801881A (en) 1958-09-24

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