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| Number | Title | Issue Date |
| 7028913 | Process for humidifying the useful space in an incubator and in a controlled atmosphere incubator For humidifying a work space in a gas-fed incubator, water in a heatable pan in the floor area of an inner container surrounding the work space is evaporated with temperature-controlled heating of the interior until a predetermined temperature is reached, whereby a ... | 04/18/2006 |
| 7028914 | Piano humidistat A humidistat including an air inlet defining a beginning of an airflow path through the humidistat, a humidity sensor for enabling measurement of the humidity of air flowing along the airflow path, a baffle, a heat source for heating air along a portion of the airfl... | 04/18/2006 |
| 6915660 | Method and system for liquefaction monitoring A method and system for liquefaction monitoring of a gas in a gas piping system in which pressure and temperature information about the gas is gathered and the liquefaction status of the gas is determined and reported. ... | 07/12/2005 |
| 6161765 | Outdoor enclosure with heated desiccant A protective enclosure for housing heat-generating electronics, having a sorption device for controlling humidity and a heater for heating the sorption device. The invention protects electronics placed within the enclosure from the effects of water vapor ... | 12/19/2000 |
| 6055848 | Air quality measuring device The present invention provides a device for measuring air quality. The device includes at least one sensor with a sensor resistance which is converted via signal processing into an output signal, the gas sensing or air content sensing device having its se... | 05/02/2000 |
| 5844138 | Humidity sensor A humidity sensing device comprises a sensor unit including a humidity sensitive capacitor having a capacitance which changes as a function of relative humidity, an oscillator circuit including the humidity sensitive capacitor wherein the output frequency... | 12/01/1998 |
| 5775580 | Evaporative cooling system An evaporative device for cooling a stream of air for cooling a space into which the air is discharged. The device includes psychrometric sensors installed in the air stream at an evaporation pad which provide signals to a control device. The stream of ai... | 07/07/1998 |
| 5285960 | Lithium chloride humidistat A simple, relatively low cost wall mountable humidistat that continuously indicates the water vapor content of gas, most preferably air. The humidistat has a conductivity probe with electrodes extending into two interconnected vials containing lithium chl... | 02/15/1994 |
| 5096549 | Dehumidifier and method of using A dehumidifier for removing moisture from a gas containing moisture comprises a first electrode which is in contact with a gas containing moisture on a first surface thereof and, when a positive voltage is applied thereto, which produces protons from said... | 03/17/1992 |
| 5014908 | Control circuit using a sulphonated fluorocarbon humidity sensor A control circuit (1) for use in a humidifier (H). A capacitor functioning as a humidity sensor (55) includes a sulphonated fluorocarbon material acting as the dielectric (57) of the capacitor. The material is sandwiched between sheets (59a, 59b) of a scr... | 05/14/1991 |
| 5012360 | Dehumidifier for magnetic disc apparatus The present invention relates to a magnetic disc apparatus having a dehumidifying element for removing the moisture flowing from a vent into the apparatus, and the magnetic disc apparatus according to the present invention is provided with a dehumidifying... | 04/30/1991 |
| 4964115 | Thermal sensing system A temperature sensor, e.g. a thermistor (24, 37, 41, 46, 50', 57) is provided in a hollow space in cup-shaped shell (22, 36, 39, 42, 50, 54) of a size, e.g. 30 mm diameter and 15 mm depth, at a position of 1/3 height (i.e. 5 mm) of the depth from the bott... | 10/16/1990 |
| 4911357 | Humidity controller utilizing absolute humidity In a humidity measuring part a thermistor or similar temperature sensing element is used, as a humidity sensing element, in a heated state and an electric signal of humidity is obtained as a function of absolute humidity proportional to the water content ... | 03/27/1990 |
| 4890932 | Thermal environment sensor with means to simulate emissivity of human body In a thermal-environment sensor which detects thermal conditions in an indoor environment based on the surface temperature of a heating element supplied with a thermal quantity, the spectral emissivity of the outer surface of said heating element closely ... | 01/02/1990 |
| 4801211 | Humidity and dew point detector A humidity detector using a ceramic sensor and a heater to periodically clean the sensor. The output of the sensor is sampled and held while the heater is on. When the detector is turned on, the heater is not started until the sensor has been sampled and ... | 01/31/1989 |
| 4780254 | Method and apparatus for controlling the humidity in a closed chamber The humidity within a controlled chamber is detected with a humidity detector and the proportional value, integrated value and differentiated value of the difference between the detected signal and a preset objective value are added to form an operation a... | 10/25/1988 |
| 4703886 | Heat/cool comfort controller An atmospheric thermostat having an auxiliary humidity input, for controlling heating and cooling so as to provide a controlled temperature modified by the humidity present thereby to provide a desirable comfort level to humans within the controlled envir... | 11/03/1987 |
| 4643351 | Ultrasonic humidifier An ultrasonic humidifier for atomizing water in a vessel by an ultrasonic oscillator and supplying atomized water with air into a room by a blower comprising a humidity sensor detecting the humidity in the room and a thermosensor detecting the temperature... | 02/17/1987 |
| 4546916 | Humidifier A humidifier for controlling ambient moisture includes a moisture sensor having a capacitor component and a resistor component which may vary in response to the ambient moisture, a pseudo AC square-wave generator for supplying a square-wave source voltage... | 10/15/1985 |
| 4465229 | Humidity comfort offset circuit A humidity responsive circuit is adapted to be connected to a thermostat to provide a humidity comfort offset to the thermostat. The humidity comfort offset circuit can be added to a retrofit item or could be added during the manufacture of an electronic ... | 08/14/1984 |
