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A personal computer peripheral, battery powered reward candy dispenser which immediately presents students with a single candy for each problem completed correctly.
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| Number | Title | Issue Date |
| 7368192 | Method and apparatus for hydrogen detection and dilution The present invention provides for a method and apparatus for hydrogen detection and dilution. The present invention uses an enclosure within which a variety of components of a fuel cell system are located and a ventilation stream to vent the enclosure which is indu... | 05/06/2008 |
| 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 |
| 7287485 | Temperature activated systems A shape memory material activated device of the present invention uses a shape memory material activator to create a path through a shell wall of the device. The path through the shell wall may release a substance contained in the shell or allow a substance to enter... | 10/30/2007 |
| 7243882 | Gauge display assembly An assembly for attaching gauges or other accessories to vehicles provides a rampart member for securing the assembly to a vehicle surface and a gauge display member secured to the rampart member for receiving and displaying gauges and other instruments. ... | 07/17/2007 |
| 7220051 | Shape memory alloy temperature sensor and switch A switch, such as an electromechanical or optical switch, whose state is responsive to temperature history, for example temperature excursions above or below a critical temperature. An element of the sensor made from shape memory alloy changes shape when exposed, ev... | 05/22/2007 |
| 7097353 | Method and device for indicating temperature Disclosed is a temperature indicating method and device. The device embodies a sealed tube containing a liquid and a float. The tube has markings on the exterior indicating temperature zones or, in the alternative, temperature gradients. The method disclosed include... | 08/29/2006 |
| 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 |
| 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 |
| 6942383 | Cooking pan The cooking pan in which one side of an outer circumferential face of a main body is combined with a handle through a bolt fastening has such a construction that a temperature display member is equipped with an upper face of a coupling end part combined with a guide... | 09/13/2005 |
| 6879239 | Thermostat assembly A thermostat assembly for opening and closing an electrical circuit in response to the temperature within a measurement region. The thermostat assembly includes a relatively low-cost bimetal disc thermostat, but may be used in circumstances where temperature or othe... | 04/12/2005 |
| 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 |
| 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 |
| 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 |
| 6158664 | Bimetallic steam trap The bimetallic plates of the steam trap disclosed each comprise three same-direction active arms next to one another extending transversely to a center line. On the center line two active arms extend in opposite directions to one another and transversely ... | 12/12/2000 |
| 6135634 | Method using constant velocity temperature probe in a product flow line A temperature probe for use in a product flow line including a valve seat secured in the flow line, a valve stem and an orifice ring. The orifice ring is attached to the valve stem to define a pair of flow paths for product passing through the product flo... | 10/24/2000 |
| 6135633 | Method for thermally calibrating circuit breaker trip mechanism and associated trip mechanism A method for adjusting the calibration of a circuit breaker trip mechanism including a terminal element, a bimetal element connected thereto, and a trip bar. Laser energy is applied to lanced or pre-bent surfaces of the terminal element to thermally induc... | 10/24/2000 |
| 6104273 | Calibration assembly and process for use in a circuit protective device In an exemplary embodiment of the invention, a calibration arrangement and process for use in a circuit protective device are presented. An exemplary calibration assembly for use in the calibration process of the present invention includes a split clamp a... | 08/15/2000 |
| 6030114 | Method for thermally calibrating circuit breaker trip mechanism and associated trip mechanism A method for adjusting the calibration of a circuit breaker trip mechanism including a terminal element, a bimetal element connected thereto, and a trip bar. Laser energy is applied to lanced or pre-bent surfaces of the terminal element to thermally induc... | 02/29/2000 |
| 6015232 | Constant velocity temperature probe in a product flow line A temperature probe for use in a product flow line including a valve seat secured in the flow line, a valve stem and an orifice ring. The orifice ring is attached to the valve stem to define a pair of flow paths for product passing through the product flo... | 01/18/2000 |
| 5795070 | Thermometer A thermometer includes a housing with a C-shaped window therein and a temperature scale adjacent to the window. A member within the housing has a colored or shaded region with a boundary visible through the window. The colored region is sufficiently large... | 08/18/1998 |
| 5532479 | Temperature, pressure, vibration or humidity sensor based on reflected light from a bimetallic, plastic or dehumidifying material A multi-function sensor using a semiconductor laser capable of sensing a value of a measurement object such as temperature, humidity, pressure or vibration on the basis of a variation in the distance between a measurement object medium adapted to respond ... | 07/02/1996 |
| 5366292 | Sensor formed from a deformation heat recoverable material having a predetermined range of temperatures in which recovery occurs and used for measuring a physical characteristic of a system For use in a measuring and analysis instrument, a sensor including a sensor element responsive to changes in a quantity to be measured by the instrument. The sensor element is formed from a deformation heat-recoverable material having a predetermined rang... | 11/22/1994 |
| 5335994 | Temperature monitoring device containing at least one element of an alloy which memorizes its shape This device comprises a casing (2) of synthetic material containing a motor element (7) made of at least one alloy which memorizes its shape and having associated with it a movement transmission element consisting of a piston (9) and a rod (10) and acting... | 08/09/1994 |
| 5143453 | Temperature monitoring device containing at least one element of an alloy which memorizes its shape This device comprises a casing of synthetic material containing a motor element made of at least one alloy which memorizes its shape and having associated with it a movement transmission element consisting of a piston and a rod and acting on at least one ... | 09/01/1992 |
| 5061085 | Thermostatic bimetallic measuring element In a thermostatic bimetallic measuring element, an adjustment lever (5) which bears a thermostatic bimetallic body (6) is held, on the one hand, by a collar (24) of a setting eccentric (12) and, on the other hand, by a holding section (14) which is formed... | 10/29/1991 |
| 5048974 | Temperature measuring device including an alarm contact The present invention relates to a temperature measuring device including an alarm contact, in particular for motor vehicles, the device comprising a housing (10) which receives a bimetallic strip (20) and a thermoresistive element (150). According to the... | 09/17/1991 |
| 5018874 | Temperature monitoring device containing at least one element of an alloy which memorizes its shape This device comprises a casing of synthetic material containing a motor element made of at least one alloy which memorizes its shape and having associated with it a movement transmission element consisting of a piston and a rod and acting on at least one ... | 05/28/1991 |
| 5007742 | Temperature-sensing member Disclosed is a temperature-sensing member including a columnar or hollow cylindrical base having a configuration of a circular or polygonal column or a hollow circular or polygonal cylinder; and at least one strip member of a material having a different c... | 04/16/1991 |
| 4859075 | Laser thermal testing method and system for use with a fire alarm system A laser thermal testing method and system for use in testing a fire alarm system which has a plurality of heat-sensors which are remotely distributed throughout a protected area. The laser thermal testing system includes a first laser and a second laser. ... | 08/22/1989 |
| 4850715 | Dual material test specimen A test specimen is provided, that is constructed of dual materials, which are preferably metallic materials and which are more preferably an austenitic iron alloy and a ferritic iron alloy. The specimen is generally constructed as a rectangular configurat... | 07/25/1989 |
| 4818119 | Hot bearing warning bolt A temperature warning device for monitoring the temperature of an article and for providing a dependable signal that a preselected temperature has been reached. The device includes an axially extending bore into which a heat responsive element, a driver, ... | 04/04/1989 |
| 4802772 | Nonelectric temperature monitor Apparatus for monitoring temperature, including: a body which experiences a change in shape in response to a change in the temperature of the body; a rotatable device having an axis of rotation and an optical transmissivity which varies circumferentially ... | 02/07/1989 |
| 4707148 | Temperature sensing device A thermocouple temperature sensing device is disclosed for monitoring temperature at a plurality of selected locations along the length of an elongated conduit immersed within a heat conducting medium. The thermocouples, being progressive in length, are r... | 11/17/1987 |
| 4690570 | C-shaped failure detector for steam traps A C-shaped failure detector for steam traps includes a curved temperature sensitive bi-metal strip positionable against the external surface of a steam or condensate pipe, and two thermally insulative arms, one extending from each end of the strip. The co... | 09/01/1987 |
| 4674900 | Optoelectromechanical apparatus for measuring physical parameters, especially pressure or force The invention relates to an optoelectromechanical apparatus for measuring physical parameters, as pressure or force, comprising an emitting optical fibre coupled via its input with a light source, receiving optical fibre connected over its output to signa... | 06/23/1987 |
| 4672199 | Fiberoptic temperature/pressure sensor system A fiberoptic sensing system comprising a light source, a sensor responsive to external stimulus, an optical fiber connected to the light source and the sensor, a detector arranged to receive light from the optical fiber, and output electronics electricall... | 06/09/1987 |
| 4575258 | Steam trap failure detector Detector apparatus adaptably mountable about the external surface of steam pipes and condensate pipes, and wherein the apparatus includes a curved temperature sensitive bi-metallic element fixedly mounted at one end and with the opposed end being free to ... | 03/11/1986 |
| 4563573 | Toy electric oven The toy electric oven has a chamber. In the lower portion of the chamber there is a chandelier bulb surrounded by a parabolic reflector that reflects heat upwardly. A rack in the upper portion of the chamber has a lower plate with an opening therein so th... | 01/07/1986 |
