PTC heater for enhancing thermal actuator response
A positive temperature coefficient heater for enhancing the response time of thermal actuators is disclosed. The PTC heater is formed of a generally low resistance material that has an anomaly temperature above which the resistance of the heater increases dramatically. The anomaly temperature is cho...
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| creator | KRUEGER HELMUT H. A TAUBER RICHARD N SOBECKS RONALD S TISONE THOMAS C |
| description | A positive temperature coefficient heater for enhancing the response time of thermal actuators is disclosed. The PTC heater is formed of a generally low resistance material that has an anomaly temperature above which the resistance of the heater increases dramatically. The anomaly temperature is chosen to substantially match the phase change temperature of a thermally expansive medium useful to power the actuator. The heater is self-regulating and provides a maximum surface area for heating the medium rapidly with a minimum of thermal mass and energy use. Preferably, the heater is formed of doped BaTiO3 in the general shape of an elongated annular cylinder. |
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A ; TAUBER; RICHARD N ; SOBECKS; RONALD S ; TISONE; THOMAS C</creatorcontrib><description>A positive temperature coefficient heater for enhancing the response time of thermal actuators is disclosed. The PTC heater is formed of a generally low resistance material that has an anomaly temperature above which the resistance of the heater increases dramatically. The anomaly temperature is chosen to substantially match the phase change temperature of a thermally expansive medium useful to power the actuator. The heater is self-regulating and provides a maximum surface area for heating the medium rapidly with a minimum of thermal mass and energy use. Preferably, the heater is formed of doped BaTiO3 in the general shape of an elongated annular cylinder.</description><language>eng</language><subject>BLASTING ; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR ; FLUID-PRESSURE ACTUATORS ; FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS ; HEATING ; HYDRAULICS OR PNEUMATICS IN GENERAL ; LIGHTING ; MACHINES OR ENGINES FOR LIQUIDS ; MECHANICAL ENGINEERING ; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOTOTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISEPROVIDED FOR ; OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR ; PRODUCING MECHANICAL POWER ; SPRING, WEIGHT, INERTIA OR LIKE MOTORS ; SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL ; WEAPONS ; WIND, SPRING WEIGHT AND MISCELLANEOUS MOTORS</subject><creationdate>1978</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19780801&DB=EPODOC&CC=US&NR=4104507A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19780801&DB=EPODOC&CC=US&NR=4104507A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>KRUEGER; HELMUT H. A</creatorcontrib><creatorcontrib>TAUBER; RICHARD N</creatorcontrib><creatorcontrib>SOBECKS; RONALD S</creatorcontrib><creatorcontrib>TISONE; THOMAS C</creatorcontrib><title>PTC heater for enhancing thermal actuator response</title><description>A positive temperature coefficient heater for enhancing the response time of thermal actuators is disclosed. The PTC heater is formed of a generally low resistance material that has an anomaly temperature above which the resistance of the heater increases dramatically. The anomaly temperature is chosen to substantially match the phase change temperature of a thermally expansive medium useful to power the actuator. The heater is self-regulating and provides a maximum surface area for heating the medium rapidly with a minimum of thermal mass and energy use. Preferably, the heater is formed of doped BaTiO3 in the general shape of an elongated annular cylinder.</description><subject>BLASTING</subject><subject>DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR</subject><subject>FLUID-PRESSURE ACTUATORS</subject><subject>FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS</subject><subject>HEATING</subject><subject>HYDRAULICS OR PNEUMATICS IN GENERAL</subject><subject>LIGHTING</subject><subject>MACHINES OR ENGINES FOR LIQUIDS</subject><subject>MECHANICAL ENGINEERING</subject><subject>MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOTOTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISEPROVIDED FOR</subject><subject>OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR</subject><subject>PRODUCING MECHANICAL POWER</subject><subject>SPRING, WEIGHT, INERTIA OR LIKE MOTORS</subject><subject>SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL</subject><subject>WEAPONS</subject><subject>WIND, SPRING WEIGHT AND MISCELLANEOUS MOTORS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1978</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZDAKCHFWyEhNLEktUkjLL1JIzctIzEvOzEtXKMlILcpNzFFITC4pTSwBShWlFhfk5xWn8jCwpiXmFKfyQmluBnk31xBnD93Ugvx4oJrE5NS81JL40GATQwMTUwNzR2PCKgAEwSs-</recordid><startdate>19780801</startdate><enddate>19780801</enddate><creator>KRUEGER; HELMUT H. 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A ; TAUBER; RICHARD N ; SOBECKS; RONALD S ; TISONE; THOMAS C</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_US4104507A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1978</creationdate><topic>BLASTING</topic><topic>DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR</topic><topic>FLUID-PRESSURE ACTUATORS</topic><topic>FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS</topic><topic>HEATING</topic><topic>HYDRAULICS OR PNEUMATICS IN GENERAL</topic><topic>LIGHTING</topic><topic>MACHINES OR ENGINES FOR LIQUIDS</topic><topic>MECHANICAL ENGINEERING</topic><topic>MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOTOTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISEPROVIDED FOR</topic><topic>OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR</topic><topic>PRODUCING MECHANICAL POWER</topic><topic>SPRING, WEIGHT, INERTIA OR LIKE MOTORS</topic><topic>SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL</topic><topic>WEAPONS</topic><topic>WIND, SPRING WEIGHT AND MISCELLANEOUS MOTORS</topic><toplevel>online_resources</toplevel><creatorcontrib>KRUEGER; HELMUT H. A</creatorcontrib><creatorcontrib>TAUBER; RICHARD N</creatorcontrib><creatorcontrib>SOBECKS; RONALD S</creatorcontrib><creatorcontrib>TISONE; THOMAS C</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>KRUEGER; HELMUT H. A</au><au>TAUBER; RICHARD N</au><au>SOBECKS; RONALD S</au><au>TISONE; THOMAS C</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>PTC heater for enhancing thermal actuator response</title><date>1978-08-01</date><risdate>1978</risdate><abstract>A positive temperature coefficient heater for enhancing the response time of thermal actuators is disclosed. The PTC heater is formed of a generally low resistance material that has an anomaly temperature above which the resistance of the heater increases dramatically. The anomaly temperature is chosen to substantially match the phase change temperature of a thermally expansive medium useful to power the actuator. The heater is self-regulating and provides a maximum surface area for heating the medium rapidly with a minimum of thermal mass and energy use. Preferably, the heater is formed of doped BaTiO3 in the general shape of an elongated annular cylinder.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | BLASTING DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR FLUID-PRESSURE ACTUATORS FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS HEATING HYDRAULICS OR PNEUMATICS IN GENERAL LIGHTING MACHINES OR ENGINES FOR LIQUIDS MECHANICAL ENGINEERING MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOTOTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISEPROVIDED FOR OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR PRODUCING MECHANICAL POWER SPRING, WEIGHT, INERTIA OR LIKE MOTORS SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL WEAPONS WIND, SPRING WEIGHT AND MISCELLANEOUS MOTORS |
| title | PTC heater for enhancing thermal actuator response |
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