Class 137/78.1 - AMBIENT CONDITION CHANGE RESPONSIVE

Subclass of Class 137 - Fluid handling
Definition: Apparatus which controls a flow of a fluid in response to
No. of patents: 32
Last issue date: 04/22/2008

Number	Title	Issue Date
7360545	Dishwasher A dishwasher having an improved valve assembly is disclosed. The dishwasher includes a housing, a tub provided in the housing, an injector assembly for injecting water onto tableware positioned in the tub, and an inlet valve assembly. The inlet valve assembly includ...	04/22/2008
7331345	Demand regulator protective bellows A self contained breathing apparatus (SCBA) served by a source of breathing gas with a mask and a demand regulator connected to the mask. The regulator has a flexible diaphragmatic member having a side exposed to pressure differentials to cause a valve mechanism to ...	02/19/2008
7306167	Light-activated mist sprayer system An automatic mist-sprayer system comprising a control unit having electronic circuitry adapted to activate the sprayer for a predetermined interval in response to a sensed ambient light condition of desired intensity and duration. The system desirably further includ...	12/11/2007
7238325	Very small chemical device and flow rate adjusting method therefor There is provided a micro chemical device with a valve function for which the pressure resistance is high and the channel cross-sectional area does not depend on the fluid pressure, and which furthermore enables the suppression of the adsorption of biological matter...	07/03/2007
7066192	Valve shut off device The invention is a valve shut off device that is easy to install and remove. The valve shut off device has at least one sensor, a receiver a set of interchangeable adapters, and a motor unit. The motor unit is attached to a valve handle by an adapter, and the sensor...	06/27/2006
6997201	Wastewater source control system A wastewater control system for use with a sewer service line conducting a flow of wastewater from a building to a sewer main. A flow control device is installed in the sewer service line; and an actuator, in electrical communication with the sensor, is connected to...	02/14/2006
6935847	Spontaneous inflation inhibitor for inflatable prosthesis A pump assembly for a penile implant is provided having a mechanism which prevents spontaneous inflation of the cylinders implanted within the user. The preventative mechanism uses overpressure generated by the reservoir during unintentional compression to effective...	08/30/2005
6763845	Water freeze prevention device An automatic water freeze prevention device having a first valve, second valve and third valve that cooperate to fill or drain a water utilization device according to pre-selected temperature conditions. These three valves are driven to their respective open/closed ...	07/20/2004
6701951	Manual to electronic automatic valve conversion apparatus A device and method to implement the device, to automatically adjust a single valve or a plurality of valves including turning the valve(s) on and off. The device includes a motor drive assembly, a mounting method, and a control method. Each component is ...	03/09/2004
6662821	System and method for closing an existing valve in response to a detected leak The invention is system and method for detecting a leak and operating an existing valve in response to the detected leak. In this regard, a receiving unit may be installed on an existing shutoff valve. The valve may control the flow of a fluid into a site...	12/16/2003
6311897	Passive pulse generator and method for activating a fitting with a passive pulse generator A passive pulse generator can be connected to a line in order to activate a safety fitting in a nuclear power plant. The line can be closed by a closure element. In the event of a temperature change in the vicinity of the pulse generator, the closure elem...	11/06/2001
6296808	Method and apparatus for protecting building personnel during chemical or biological attack A system for at least partially decontaminating personnel in response to detection of an agent harmful to human life such as a chemical or biological agent. The system can provide a sprinkler head above a walkway such as a hallway through which personnel ...	10/02/2001
6206337	Automatic flood control ball valve An automatic shutoff valve for shutting off the main water supply to a building in the case of detected water leak. A ball valve is provided with a mounting kit for rendering the valve automatic. The apparatus includes a housing adapted to fit over the va...	03/27/2001
6170798	Fluid detection and shutoff actuation apparatus retrofitable on fluid shutoff valve A fluid detection and shutoff actuation apparatus includes a rotatable plate mountable over a shaft of a shutoff valve, a linear actuator spaced from the plate, a trigger disposed between the actuator and plate, a fluid detector, and a control mechanism c...	01/09/2001
6148842	Compensation element for the compensation of temperature-conditioned length changes of an object The compensation element is compensating for temperature-conditioned length changes of an object. An injection valve that is fully functional in the entire range of the operating temperatures of a motor requires a device that compensates thermally conditi...	11/21/2000
6145755	Supplemental irrigation programmer An irrigation system that controls the amount of water to be applied based upon specific historical meteorological data including relative humidity, evapotranspiration data, and precipitation. The invention is also of a method for determining the optimal ...	11/14/2000
5967171	Shut-off system for preventing water damage A system for use with a normally open manually actuated water valve, or any other suitable manually actuated device, for automatically closing the valve, or device, upon sensing water. The system includes at least one water sensor electrically connected t...	10/19/1999
5934302	Control valve apparatus and method for regulating fluid flow in fluid-intake machines A control valve system. The system includes a microcontroller electronically connectable to the power supply of an electrical household appliance, such as a washing machine which is connected to the water piping system in a building via hoses. The microco...	08/10/1999
5860247	Gas driven hydroponic system with a liquid pump outlet pipe connected to a variable buoyant float A multiple function hydroponics system consisting of three major components; a plant pot container, a reservoir container and a pumping chamber. The plant pot container has a drainage tube down into the reservoir, this drainage tube height is adjusted to ...	01/19/1999
5655561	Wireless system for detecting and stopping water leaks A water-activated alarm system, providing an alarm in the event of a water leak, includes a radio-frequency transmitting unit and a receiving unit and a number of safety features to ensure proper operation in the event of an emergency. The transmitting un...	08/12/1997
5340025	Wind controlled spraying Spraying apparatus for spraying a liquid into air includes a wind sensor and a sprayer. The sprayer provides a spray into the air for a predetermined time interval upon sensing only predetermined ones of the occurrences and the predetermined ones of the o...	08/23/1994
5240022	Automatic shutoff valve An automatic shutoff valve system for installation for instance in the water supply line to a hot water heater includes a sensor to detect leakage electrically by sensing moisture, and then shutting off the supply line in response. The valve mechanism inc...	08/31/1993
5097860	Pressure regulator for underwater breathing apparatus The first stage regulator of a two-stage underwater breathing apparatus utilizes an imperforate force transfer mechanism to automatically increase the rate at which breathing air is delivered from a high pressure supply to the second stage regulator as th...	03/24/1992
4987913	Apparatus and method for controlling operation of storm sewage pump Storm water pumps drain storm water in a pump well. In order to control the storm water pumps, a radar rain gage and ground raingages are set. Measurement data from the radar rain gage and the ground rain gages are supplied to a data processing unit. The ...	01/29/1991
4867191	Solar activated gas light control module A self-contained gas light control module is disclosed as including a tubular housing with a main tubular gas line extending through the housing and a normally open electro-mechanical valve in the gas line to permit flow of gas therethrough at night. Duri...	09/19/1989
4535914	Automatic larvicide dispenser An automatic larvicide dispensing apparatus which is actuated by weather conditions. A container for holding liquid larvicide has a sealed cylinder disposed therein and a piston reciprocally disposed within such cylinder. This piston is biased to one posi...	08/20/1985
4488567	Automatic valve closer Valve closure means having a low rpm motor with a shaft coupled to the stem of a shutoff valve located in the supply line of a water heater or like device; said motor having support means attaching to the supply line is energized to rotate said shutoff va...	12/18/1984
4448027	Cartridge containing water expandable members A cartridge is made up of a plurality of packet-like members each forming a closed pocket containing a material which expands to many times its dry volume when contacted by liquid water. The packet-like members are arranged superposed on one another with ...	05/15/1984
4354571	Protective system for use in transfer of hazardous substances A safety and control system for the product outlet valves of a vehicle tank has pneumatically operated valves associated with each product outlet of the tank, control valves are connected to an air reservoir through a charge valve for effecting operation ...	10/19/1982
4297686	Water detection device A resistive liquid detection and shut-off system is used to protect a floor area from water damage. An elongated sensor comprising a flexible plastic tape with an adhesive backing and a pair of conductive metal strips detects liquid drips, flows and trick...	10/27/1981
4108195	Quick-closing fire gate A quick-closing fire gate is provided having specific application to sectionalized production facilities using vibratory conveyors to transport volatile substances. The conveyor passes through a portal defined by a gate housing at each barrier wall. The g...	08/22/1978
3991939	System for spraying and cooling vegetation Automated spraying system for misting and cooling vegetation, such as ornamental and food-producing plants, shrubs and crops. A sensor having a moisture evaporation rate similar to the particular vegetation and disposed among it forms part of a circuit th...	11/16/1976

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Class 137/78.1 - AMBIENT CONDITION CHANGE RESPONSIVE