Famous Patents
The ice cream cone was invented at the St. Louis Worlds Fair by Ernest Hamwi in 1904. His waffle booth was next to an ice cream vendor who ran short of dishes. Hamwi rolled a waffle to hold ice cream and the cone was born.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 8136988 | Methods and systems for passive, wireless temperature monitoring A temperature sensor is described that includes a base, a first set of posts attached to the base having a first coefficient of thermal expansion, a second set of posts attached to the base and having a second coefficient of thermal expansion, and two substantially ... | 03/20/2012 |
| 7618187 | Electromechanical temperature detection device for a cooking appliance and method for the manufacture of an electromechanical temperature detection device An electromechanical temperature detection device for a cooking appliance comprises a first rod-shaped sensor part and a second tubular-shaped sensor part. The first sensor part and the second sensor part are made from materials having different thermal expansion co... | 11/17/2009 |
| 7568835 | Temperature sensor Temperature sensor with a temperature-dependent actuating device (12) comprising a capillary tube (14) which is filled with a gaseous or liquid medium which—in case of temperature changes along a measuring distance formed by the capillary tube (14... | 08/04/2009 |
| 7543984 | Temperature sensor for a heating mechanism and method for controlling the heating mechanism An arrangement for controlling a radiant heater of a cooktop comprising a power controller, a changeover switch and a rod controller in a first operating mode which provides for the interruption of operation at temperatures of approximately 600° C. at a first switc... | 06/09/2009 |
| 7540658 | Temperature detecting device A temperature detecting device includes a heat receiving plate, a displacement transmitting part, a deforming part, a deformation generating part and a displacement detecting part. The heat receiving plate is restrained at its rim portion to generate a displacement ... | 06/02/2009 |
| 7322744 | Temperature measurement device A temperature measuring device includes a temperature-responsive element that mechanically moves a first inductive assembly component relative to a second inductive assembly component in response to temperature changes. The movement of the first inductive assembly c... | 01/29/2008 |
| 7210846 | Thermostat housing assembly A thermostat housing assembly (10, 100) includes a housing (12, 102) having a flange (16, 106) for mounting the housing (12, 102) on a support structure and a tubular spout (18, 108) extending from the flange (16, 106) and d... | 05/01/2007 |
| 7118272 | Method and apparatus for optically detecting and locating a fire in an enclosed space Thermally reactive elements of an intumescent material that expands when heated above a trigger temperature are arranged in an enclosed space, e.g a freight compartment of an aircraft. An optical sensor in the enclosed space has a field of view encompassing the elem... | 10/10/2006 |
| 7111983 | Temperature detection method and apparatus for inverter-driven machines A resistance temperature detector device and system are provided for measuring the temperature adjacent to windings within a stator assembly. The resistance temperature detector comprises a resistive element enclosed within a plurality of insulative layers, includin... | 09/26/2006 |
| 7080942 | Bimetal thermometer The bimetal thermometer according to the invention comprises a bimetal helix arranged inside a protective tube, one end thereof being attached to the protective tube and the other end thereof being connected to a pointer shaft to which a pointer arranged inside a ca... | 07/25/2006 |
| 7033073 | Device and method for measuring the temperature of an electric motor In order to determine the temperature in the winding region of an electric motor, especially linear motor, a measuring line made of uniform; electrically conductive material is integrated in a winding, preferably in sections between winding teeth. The measuring line... | 04/25/2006 |
| 6986602 | Temperature measurement device A temperature measuring device includes a temperature-responsive element that mechanically moves a first inductive assembly component relative to a second inductive assembly component in response to temperature changes. The movement of the first inductive assembly c... | 01/17/2006 |
| 6945693 | Cooking thermometer with audible alarm A cooking thermometer having an audible alarm includes a skewer having a segment of a shape memory alloy wire disposed therein. The upper end of the shape memory allow wire is secured to a connecting rod which is operatively associated with a cam assembly. When the ... | 09/20/2005 |
| 6893155 | Cooking thermometer with audible alarm The invention is directed towards a cooking thermometer having an audible alarm and triggering mechanism therefore. The cooking thermometer includes a skewer having a segment of nitinol wire disposed therein. The nitinol wire is secured to a connecting wire which ex... | 05/17/2005 |
| 6848390 | Shape memory thermal exposure monitor A cumulative thermal exposure monitor (10) having a housing (11) with a fluid sealed interior cavity (16) and a thermally-responsive member (20) therein formed of a shape memory material which moves an indicator (21), wherein the t... | 02/01/2005 |
| 6837620 | Shape memory alloy temperature sensor A sensor provides a persistent indication that it has been exposed to temperatures below a certain critical temperature for a predetermined time period. An element of the sensor made from shape memory alloy changes shape when exposed, even temporarily, to temperatur... | 01/04/2005 |
| 6695886 | Optical path improvement, focus length change compensation, and stray light reduction for temperature measurement system of RTP tool The present invention is directed to a pyrometer system and comprises an elevator tube. The elevator tube comprises an inner tube and an outer tube surrounding the inner tube in telescoping arrangement and extending from a top to a bottom thereof, the arr... | 02/24/2004 |
| 6612739 | Shape memory alloy temperature sensor The present invention comprises a sensing element mounted with a body. The sensing element comprises a portion made with a shape memory alloy. The sensing element mounts with the body, fixedly at two ends. The fixed mounting at one end, however, is config... | 09/02/2003 |
| 6434504 | Resistance based process control device diagnostics A device in a process control system includes an electrical element which has a resistance. Self-heating circuitry coupled to the element provides a self-heating current to determine the self-heating index (SHI) of the element. Diagnostic information abou... | 08/13/2002 |
| 6425343 | Shape memory alloy thermal exposure monitor A thermal exposure monitor has a thermally-conductive housing adapted to be placed in close proximity to a product to be monitored and at least one thermally-responsive shape memory alloy member in the housing that has a first shape at temperatures below ... | 07/30/2002 |
| 6422171 | Temperature indicating device A temperature indicating device utilizing a housing having an exterior and an interior which includes first and second chambers. First and second chambers communicate with one another. An opening through the housing allows communication between the interi... | 07/23/2002 |
| 6390674 | Thermal analysis apparatus and method capable of accurately measuring a temperature of a large diameter sample Under a same heating condition as a sample to be measured, a physical property is measured for a reference substance whose temperature dependency of a physical property value is previously known. Reversely, a temperature profile of the reference substance... | 05/21/2002 |
| 6200023 | Method for determining the temperature in a thermal processing chamber A system and method for determining the temperature of substrates in a thermal processing chamber in the presence of either an oxidizing atmosphere or a reducing atmosphere is disclosed. Specifically, temperature determinations made in accordance with the... | 03/13/2001 |
| 6158381 | Time-temperature indicator A time-temperature indicator indicates the useful shelf life of an associated product which may be affected by the passage of time and an applied temperature. A creeping material has a first end connected to a first fixed location and a second end connect... | 12/12/2000 |
| 5917226 | Integrated released beam, thermo-mechanical sensor for sensing temperature variations and associated methods An integrated circuit and method are provided for sensing activity such as temperature variations in a surrounding environment. The integrated released beam sensor preferably includes a switch detecting circuit region and a sensor switching region connect... | 06/29/1999 |
| 5772327 | Automatic fusion-temperature control for optical fiber splicers For measuring and controlling the temperature of a splice portion between two optical fiber (1, 1') ends, during the splicing process when the material of the ends is heated to be fusioned, the time-dependency of the surface tension effect for viscous liq... | 06/30/1998 |
| 5735607 | Shape memory alloy thaw sensors A sensor permanently indicates that it has been exposed to temperatures exceeding a critical temperature for a predetermined time period. An element of the sensor made from shape memory alloy changes shape when exposed, even temporarily, to temperatures a... | 04/07/1998 |
| 5528151 | Thermal fatigue testing using plural test trips with graduated sizing and recessed anchoring A plurality of fatigue life test strips (16, 18, 20, 22) has each of the strips anchored to a base (12) which is subject to thermal cycling and consequent dimensional change which causes fatigue. The base is, at best, semiconductive, and the strips are co... | 06/18/1996 |
| 5524999 | Multiple thermostat assembly A multiple thermostat assembly includes a plurality of thermostats which grouped together to form a structural unit, with each thermostat including a base plate. The base plates of neighboring thermostats are joined together by plastically deformable ad... | 06/11/1996 |
| 5076197 | Temperature indicator A low cost device which changes rapidly, significantly, irreversibly, and accurately when it is exposed to a predetermined temperature is disclosed. The device of the present invention employs a bimetallic disk which changes its configuration when it is e... | 12/31/1991 |
| 5033865 | Thermo-actuator A thermo-actuator has a steel rod, a guide member slidably mounted on the rod, a spool seal secured to the guide member, a heat conductive cylinder secured to the guide member, and wax pellets provided in the cylinder. The spool seal has a thin layer, so ... | 07/23/1991 |
| 4696579 | Thermostat A thermostat equipped with a bimetallic element sensitive to a given temperature comprises a monolithic base open at one end in which two terminals connectable to an electric circuit are inserted and precisely located, each having one end bent at a right ... | 09/29/1987 |
| 4689599 | Thermostat A thermostat has a cup-shaped insulating base open at one end, a pair of terminals ultrasonically secured in the bottom of the base precisely locating respective stationary contacts within the base and having portions thereof extending outside the base, a... | 08/25/1987 |
| 4506371 | Underwater thermometer and method of making The underwater thermometer includes a transparent block, preferably formed of an acrylic plastic, having a planar rear surface provided with a longitudinal recess adapted to receive a fluid and tube type temperature indicator, with an enlargement at one e... | 03/19/1985 |
| 4487193 | Thermally operated propeller assembly A temperature indicating propeller assembly comprises first and second propellers freely suspended one above the other on a common suspension wire for rotation by rising air currents. One propeller is of larger diameter than the other so that it commences... | 12/11/1984 |
| 4449518 | Disinfection indicator for medical equipment A disinfection indicator mounted on medical equipment which is inserted into a channel for forceps and repeatedly used after thermal sterilization, includes a deformable portion, made of a shape memory alloy having a one-way shape memory effect, which is ... | 05/22/1984 |
| 4261174 | Temperature sensitive actuator and fan A temperature-sensitive actuator particularly for varying the pitch of blades spaced around a cooling fan hub. The actuator, as applied to a fan, includes at least first and second circular or part-circular elongate members within the hub, restraining mea... | 04/14/1981 |
| 4253304 | Thermal element A thermal element having a tubular casing with an open end, a volume of heat-responsive, expandable wax positioned in said casing at a distance from the open end thereof, a spherical resilient seal member compressively positioned in the casing adjacent sa... | 03/03/1981 |
| 4048611 | Thermal switch A snap-action thermal switch having a housing with an open hollow portion at one end with a central enlargement of the housing in the hollow portion; a central cavity in the other end of the housing extending into the central enlargement; a pair of oppose... | 09/13/1977 |
| 4020693 | Acoustic transducer for nuclear reactor monitoring A transducer to monitor a parameter and produce an acoustic signal from which the monitored parameter can be recovered. The transducer comprises a modified Galton whistle which emits a narrow band acoustic signal having a frequency dependent upon the para... | 05/03/1977 |
