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2019
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Invention
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Gasket for damper assembly.
A gasket including an outer surface with a patterned edge profile. T... |
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2016
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Invention
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Enclosure with sliding and pivoting cover. An enclosure comprises a housing defining an opening, ... |
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Invention
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Centrifugal fan assembly including cooling vanes and a cooling plate. A fan assembly includes a d... |
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2011
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Invention
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Systems and methods of reducing a component of a signal caused by vibration. A vibration detectio... |
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Invention
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Balancing circuit for a metal detector. A balancing circuit for a metal detector. The metal detec... |
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2010
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G/S
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Ceiling fans; lighted ceiling fans; ventilation fan accessories, namely, grilles, registers, diff... |
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2008
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Invention
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Airflow sensor apparatus. A sensor apparatus for measuring a pressure of an airflow in a duct. Th... |
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2007
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Invention
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A vibration detection and cancellation circuit. Disclosed is a vibration detection circuit. The c... |
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Invention
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Metal detector. A vibration canceling circuit for a metal detector. The metal detector includes a... |
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1997
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Invention
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Improved grille assembly and related method. Disclosed is an air-flow-directing grille assembly o... |
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1996
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Invention
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Grille assembly and related method. Disclosed is an air-flow-directing grille assembly of the typ... |
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Invention
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Sound-attentuating air-throttling structure and method for making the structure. A method for mak... |
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Invention
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Sound attentuator for hvac systems. An attenuator (10) for reducing sound in an HVAC system (13) ... |
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1995
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Invention
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Sound attenuator for hvac systems. An apparatus for attenuating sound in a HVAC system has an inl... |
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1993
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Invention
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Variable air volume terminal unit with exterior insulation. The disclosure involves a variable ai... |
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G/S
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metal detectors having a search head used to analyze food, pharmaceuticals, plastics, mining prod... |
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1991
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Invention
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Safety lock. ABSTRACT OF THE DISCLOSURE A safety spring lock for locking an air pattern control i... |
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1990
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Invention
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Automated system for pricing and ordering custom manufactured parts. A system is disclosed for th... |
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Invention
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Safety lock. A safety spring lock for locking an air pattern control in a diffuser includes a nor... |
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1989
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Invention
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Ventilator scroll arrangement. ABSTRACT OF THE DISCLOSURE A rooftop ventilator includes a fan arr... |
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Invention
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Ventilator scroll arrangement. A rooftop ventilator includes a fan arranged for rotation about a ... |
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1988
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Invention
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Auxiliary frame for ceiling mounted air diffusers and the like. ABSTRACT OF THE DISCLOSURE An air... |
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Invention
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Opposed blade balanced damper. ABSTRACT OF THE DISCLOSURE An opposed blade balanced damper includ... |
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G/S
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METAL DETECTORS |
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Invention
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Auxiliary frame for ceiling mounted air diffusers and the like. An air distribution device system... |
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1987
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Invention
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Opposed blade balanced damper. An opposed blade balanced damper includes three sector-shaped damp... |
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1986
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Invention
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Humidifier controller having multiple-phase electrode current sensor. ABSTRACT OF THE DISCLOSUR... |
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Invention
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Humidifier controller having automatic over-current correcting means. Abstract of the Disclosure... |
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Invention
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Humidifier controller having automatic over-current correcting means. A controller, for controlli... |
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Invention
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Humidifier controller having multiple-phase electrode current sensor. A controller for controllin... |
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1985
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Invention
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Variable air volume system control. An electronic control for positioning the damper in the air s... |
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1983
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Invention
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Adjustable slot diffuser. An air diffuser includes first and second walls disposed in spaced side... |
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Invention
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Energy recovery ventilator. ABSTRACT OF THE DISCLOSURE An energy recovery ventilator adapted to b... |
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Invention
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Energy recovery ventilator. An energy recovery ventilator adapted to be mounted on a roof and ada... |
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1981
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Invention
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Electrical steam generator having adjustable electrodes for an air humidifier. The steam generato... |
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1980
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Invention
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Heat wheel construction. A heat wheel is made of spirally wound, interleaved, flat and corrugated... |
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1979
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Invention
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Airflow control mechanism insertable into an air duct. The invention provides an air flow control... |
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Invention
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Air control mechanism having noise suppression means. The invention provides an airflow control m... |
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Invention
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Digital electronic steam humidifier control. Disclosed herein is a method and a digital electroni... |
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1978
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Invention
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Fluid flow measuring apparatus. A fluid flow sensor for measuring the conditions of pressure and/... |
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Invention
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Heat transfer medium for rotary heat transferrers. The heat transfer medium for rotary air-to-air... |
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Invention
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Transfer wheel assembly for an air conditioner and method of making the wheel assembly. A transfe... |
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1977
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G/S
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Air handling and heat transfer equipment-namely, diffusers, ventilators, fans, registers, grilles... |
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1976
|
Invention
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Flow control unit for air distribution system. The flow control unit includes a shell or housing ... |
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1974
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Invention
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Variable volume control box and system incorporating same. An inlet plenum extends into a control... |
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Invention
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Thermostatic control for use in variable air distribution systems. Air flow volume in a delivery ... |
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1972
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G/S
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Air handling and heat transfer equipment, namely, diffusers, ventilators, fans, registers, grille... |
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1969
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G/S
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AIR HANDLING AND HEAT TRANSFER EQUIPMENT-NAMELY, DIFFUSERS, VENTILATORS, FANS, REGISTERS, GRILLES... |
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1965
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G/S
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AIR HANDLING EQUIPMENT, PARTICULARLY AIR DIFFUSERS |
