Did You Know...
...that after Parker Brothers executives turned down the game of Monopoly because it had "52 fundamental errors" (including taking too long to play), a copy of the game wound up in the home of the company president who stayed up until 1 a.m. to finish playing it? He was so impressed by the game that the next day he wrote to inventor Charles Darrow and offered to buy it!
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| Number | Title | Issue Date |
| 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 |
| 7097531 | Self powered fire alarm An improvement to a self powered fire alarm consisting of an improved housing sealing method that improves the reliability of the alarm by preventing insect infiltration. Additional improvements consist of an improved alarm activated notification, along with the inc... | 08/29/2006 |
| 7082890 | Gauge pointer with integrated shape memory alloy actuator An actuated gauge pointer that includes a shape memory alloy element configured to move the gauge pointer when activated is provided. The actuated gauge pointer includes a first shape memory alloy element disposed within the perimeter of the gauge pointer housing. A... | 08/01/2006 |
| 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 |
| 7066644 | Apparel indicating thermometer The apparel indicating thermometer has a housing, a circular dial board disposed within the housing, a pointer situated on the face of the dial board, and a thermometer movement attached to a back surface of the housing. The thermometer movement has an arbor which r... | 06/27/2006 |
| 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 |
| 6736085 | Heat cycle indicating device An indicating device for indicating the number of times in which a surgical fitting has been autoclaved, the device including a body which includes first and second sets of teeth and a bimetallic indexing ring having teeth thereon, the arrangement being such that on... | 05/18/2004 |
| 6736086 | Food temperature measuring device with audible signal The present invention is a temperature measuring device for insertion into food which audibly signals the user when the temperature of the food reaches a predetermined level. The stem of the device contains a coiled temperature sensitive bi-metallic spring. As the i... | 05/18/2004 |
| 6494161 | Tea kettle flute The present invention is a novelty musical kettle that plays a song when liquid inside the kettle is heated. The kettle body contains a circular flute instrument with a release flap at a first end and a closed second end. When the water is heated, the fla... | 12/17/2002 |
| 6431110 | Food temperature measuring device with audible signal The present invention is a temperature measuring device for insertion into food which audibly signals the user when the temperature of the food reaches a predetermined level. The stem of the device contains a temperature sensitive spring in bi-metallic co... | 08/13/2002 |
| 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 |
| 6299350 | Thermometer A thermometer includes a probe portion having a central axis, an adjustment member secured to the probe portion in a manner preventing relative rotation thereof, and a dial portion which is rotatable relative to the probe portion about the central axis th... | 10/09/2001 |
| 5880667 | System for indicating high temperature event in an electrical power equipment enclosure An indicator movable between a set and an alarm position is latched in the set position by a thermally responsive latch disposed to sense ambient temperature within electrical equipment. If a high temperature event occurs, the latch releases the indicator... | 03/09/1999 |
| 5839458 | Dishwasher clean/dirty indicator A dishwasher clean/dirty indicator is disclosed for showing a user whether dishes in a dishwasher are clean or dirty. The indicator is configured either as a portable or built-in device. The portable configuration is described in this abstract which begin... | 11/24/1998 |
| 5439169 | Temperature regulating control device and method of making the same A temperature regulating control device and method of making the same are provided, the device comprising a housing, a movable selector unit carried by the housing for selecting a temperature the control device is to tend to maintain, and an ambient tempe... | 08/08/1995 |
| 5359993 | Apparatus for counting the number of times a medical instrument has been used An apparatus for counting the number of times a medical instrument has been sterilized includes an indicator having sequential indicia and a heat responsive member for indicating a next one of the indicia. Mechanical, fluid mechanical and electronic versi... | 11/01/1994 |
| 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 |
| 5313935 | Apparatus for counting the number of times a surgical instrument has been used An improved use counter for endoscopic instruments is mounted in the ferrule of the distal portion of an endoscopic instrument having separable proximal and distal portions. The counter includes a ratchet wheel having inner and outer teeth and a bimetalli... | 05/24/1994 |
| 5302028 | Bathtub thermometer device A thermometer housing of a generally cylindrical configuration is arranged for floating reception within a bathtub, with the thermometer housing including a top wall divided into a first and second semi-annular indicator surface, with an indicator arrow o... | 04/12/1994 |
| 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 |
| 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 |
| 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 |
| 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 |
| 4953452 | Collapsible steamer basket A collapsible steamer basket for insertion into the interior of a vessel. Vegetables or the like can be placed inside the basket and steamed. The basket has a plurality of foldable apertured leaves which overlap and conform to the interior of the vessel. ... | 09/04/1990 |
| 4950085 | Multi-positional thermometer A temperature sensing device having a gauge and a stem assemblies and utilizing a flexible coupling to transmit rotation through predetermined angles from a helical temperature sensitive element, to an indicator, further utilizing means to rotate the gaug... | 08/21/1990 |
| 4867095 | Differential pressure indicator A cartridge style, pop up, differential pressure indicator includes a threaded body member, a cover structure and a cylindrical indicator button, which carries a magnet at its lower end, and is slidably supported in the cover for movement between a depres... | 09/19/1989 |
| 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 |
| 4649854 | Over-temperature indicator device for freezers An over-temperature indicator for freezers includes an indicator pin slidable mounted within a cylindrical housing in which is mounted a bistable bimetal thermostat disk which is engaged by a magnet mounted to an end of the indicator pin. A cup shaped ins... | 03/17/1987 |
| 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 |
| 4541731 | Temperature sensitive transducer with a resonant bimetal disk A temperature sensing transducer has a mechanically vibrating member whose rigidity varies with temperature, changing the resonant frequency. An output signal is generated having a frequency controlled by the vibrating member. The rigidity is caused to va... | 09/17/1985 |
| 4539929 | Temperature sensitive reclosure indicator A device for indicating whether a container has been both exposed to a critical temperature and not subsequently opened which includes a housing, a temperature-sensitive member which assumes a first position and a second position within the housing, and a... | 09/10/1985 |
| 4522147 | SME shutter mechanism A shutter 4 is movably mounted in a housing 6 for actuation between given positions by an SME (shape memory effect) element 8 in response to a given level of current flow through the SME element 8 causing I2 R heating of the latter above its tr... | 06/11/1985 |
| 4503800 | Heat responsive alarm device A metallic bell-type alarm device for indicating the need for refueling or otherwise adjusting the heat generated within a wood stove or the like. The device is mounted on or adjacent to a stove at a location where it can respond to heat fluctuations in t... | 03/12/1985 |
| 4458624 | Temperature verification device A temperature verification device employs a coiled bimetallic strip having its temperature responsive, rotatable outer end engaged with an indicator flag which is connected with a finger-like projection spaced outwardly from the indicator flag. A stop mem... | 07/10/1984 |
| 4445789 | Thermometer or other instrument assembly The circular crystal of a temperature indicating instrument has a circular flange rotatable in a channel in the instruments' casing. Fingers on the casing have teeth which mesh with teeth on the flange. The fingers yieldably hold the crystal in place but ... | 05/01/1984 |
| 4404923 | Heat alarm indicator A heat alarm for releasing a strong readily noticeable odor when subjected to heat above a preselected level. A glass container having an elongated breakable neck portion is filled with an odoriferous fluid. When the neck portion is broken, the fluid can ... | 09/20/1983 |
| 4341118 | Temperature verification apparatus Tamper proof apparatus for verification that a critical temperature has been reached or exceeded includes a permanently sealed casing and cap containing a thermal element connected to a rotatable cam having a temperature indicator extending outwardly ther... | 07/27/1982 |
| 4251719 | Contact lens disinfector with temperature indicator A contact lens disinfector unit (10) includes a housing, heating means (20) within the housing and arranged to heat the contact lens case (21) and the contact lenses therein to a disinfecting temperature and for terminating the application of heat thereaf... | 02/17/1981 |
| 4243632 | Contact lens disinfector with temperature indicator A unit (10) for disinfecting contact lenses includes a housing, heating means (20) arranged to heat a contact lens case (21) and the contact lenses therein and means (30) for indicating the temperature condition (HOT or COLD) of the lens case. The tempera... | 01/06/1981 |
| 4242304 | Contact lens disinfector with temperature indicator A contact lens disinfector unit (10) includes a housing, heating means arranged to heat the contact lenses and the associated lens case (21) to a disinfecting temperature and for thereafter terminating the application of heat to allow the contact lenses t... | 12/30/1980 |
