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Pelletized rodenticide from rodent toxic plant matter
New Patents
XIX
solenoid valves are controlled by an electronic counter coupled to the flowmeter. In response to predetermined volumetric flows of fluid, the solenoid valves alternatively deliver fluid to a hydraulically operated drain valve and to a spray/rinse outlet in the waste tank. In one alternative embodiment, a flowmeter is mechanically coupled to a valve structure which alternatively applies fluid to the drain valve and to a spray/rinse outlet in the tank, directly. In other embodiments, the volume of flow can be determined by liquid level sensors in the tank and a predetermined cleaning sequence can be carried out based on the signals sent by the sensors. Power can be furnished by a rechargeable power supply.
A rodenticide composition of pelletized rodent toxic plant materials such as a Euphorbia lathyrus and methods of rodent control employing pelletized Euphorbia lathyrus.
4905579
To check the presence of operating vacuum in
RADON GAS VENTILATION P U M P SYSTEM AND M E T H O D Richard E Dame An apparatus and method for exchanging air within building in order to exhaust air contaminated with radon gas or other pollutants. The apparatus includes a heat reclaim exchanger to recapture building heat which is dimensioned to be mountable between standard spaced and sized floor joists of a dwelling basement ceiling. A solar panel is used to produce electric power for system operation and cooperates with a trickle charge unit including a storage battery to provide power when there is insuiticient light energy available to operate the device. A control unit operates one or more fans or blowers to provide a positive differential pressure within a basement area with respect to outside air pressure so as to inhibit and arrest the influx of radon or other gaseous pollutant into the basement or other confined space of device use.
4906935 METHOD AND EQUIPMENT FOR VACUUM MONITORING IN VACUUM SWITCHING TUBES Ruediger Hess, Wilfried Kuhl, Leonhard Klug, Wolfgan Schilling, Peter Trentin, Heribert Weber, Wolfgang Schlenk, Heinz-Helmut Schramm, Berlin, Federal Republic O f Germany assigned to Siemens Aktiengesellschaft
vacuum switches, high voltage can be applied between the contacts at a given contact spacing and the dielectric strength can be tested. According to the invention, the procedure for vacuum monitoring is that a contact spacing (h) below the nominal stroke of the vacuum switch is selected and that the X-radiation generated at this contact spacing (h) and high voltage (U) in vacuum due to the field electron emission between the contacts by the contact surfaces acting as anode is acquired and evaluated as proof of the presence of operating vacuum inside the switching tube. This method can preferably be applied to encapsulated vacuum switching tubes, in particular to SF6-insulated switching facilities. Associated with the vacuum switching tube (15) in the associated equipment is an X-ray detector, preferably a Geiger-Muller counter, which is connected to the high-voltage unit (25) via an evaluating circuit (30 to 50) which serves for the determination and indication of the operating vacuum and shuts off the high-voltage unit (25) to minimize the X-ray dose. Due to the X-ray emission, which is stopped long before reaching impermissible values, the presence of vacuum can be positively verified.
4906472 4906978
PELLETIZED RODENTICIDE FROM RODENT TOXIC PLANT MATTER
OPTICAL SMOKE DETECTOR
Thomas Gasseling, Lana Landis assigned to John I Haas Inc
James A Best, Irving Ellner assigned to Cerberus AG
XIX
solenoid valves are controlled by an electronic counter coupled to the flowmeter. In response to predetermined volumetric flows of fluid, the solenoid valves alternatively deliver fluid to a hydraulically operated drain valve and to a spray/rinse outlet in the waste tank. In one alternative embodiment, a flowmeter is mechanically coupled to a valve structure which alternatively applies fluid to the drain valve and to a spray/rinse outlet in the tank, directly. In other embodiments, the volume of flow can be determined by liquid level sensors in the tank and a predetermined cleaning sequence can be carried out based on the signals sent by the sensors. Power can be furnished by a rechargeable power supply.
A rodenticide composition of pelletized rodent toxic plant materials such as a Euphorbia lathyrus and methods of rodent control employing pelletized Euphorbia lathyrus.
4905579
To check the presence of operating vacuum in
RADON GAS VENTILATION P U M P SYSTEM AND M E T H O D Richard E Dame An apparatus and method for exchanging air within building in order to exhaust air contaminated with radon gas or other pollutants. The apparatus includes a heat reclaim exchanger to recapture building heat which is dimensioned to be mountable between standard spaced and sized floor joists of a dwelling basement ceiling. A solar panel is used to produce electric power for system operation and cooperates with a trickle charge unit including a storage battery to provide power when there is insuiticient light energy available to operate the device. A control unit operates one or more fans or blowers to provide a positive differential pressure within a basement area with respect to outside air pressure so as to inhibit and arrest the influx of radon or other gaseous pollutant into the basement or other confined space of device use.
4906935 METHOD AND EQUIPMENT FOR VACUUM MONITORING IN VACUUM SWITCHING TUBES Ruediger Hess, Wilfried Kuhl, Leonhard Klug, Wolfgan Schilling, Peter Trentin, Heribert Weber, Wolfgang Schlenk, Heinz-Helmut Schramm, Berlin, Federal Republic O f Germany assigned to Siemens Aktiengesellschaft
vacuum switches, high voltage can be applied between the contacts at a given contact spacing and the dielectric strength can be tested. According to the invention, the procedure for vacuum monitoring is that a contact spacing (h) below the nominal stroke of the vacuum switch is selected and that the X-radiation generated at this contact spacing (h) and high voltage (U) in vacuum due to the field electron emission between the contacts by the contact surfaces acting as anode is acquired and evaluated as proof of the presence of operating vacuum inside the switching tube. This method can preferably be applied to encapsulated vacuum switching tubes, in particular to SF6-insulated switching facilities. Associated with the vacuum switching tube (15) in the associated equipment is an X-ray detector, preferably a Geiger-Muller counter, which is connected to the high-voltage unit (25) via an evaluating circuit (30 to 50) which serves for the determination and indication of the operating vacuum and shuts off the high-voltage unit (25) to minimize the X-ray dose. Due to the X-ray emission, which is stopped long before reaching impermissible values, the presence of vacuum can be positively verified.
4906472 4906978
PELLETIZED RODENTICIDE FROM RODENT TOXIC PLANT MATTER
OPTICAL SMOKE DETECTOR
Thomas Gasseling, Lana Landis assigned to John I Haas Inc
James A Best, Irving Ellner assigned to Cerberus AG