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7126464 |
Method and apparatus for controlling a valve during a hazard event
A method and apparatus for controlling a valve during the detection of a hazard event. A hazard event is defined as an event that may endanger the health or safety of people or the environment from...
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6951207 |
Fuel supply apparatus using low boiling point fuel and its control method
A fuel supply apparatus reduces the fuel vaporization and leakage by means that the positions of vaporization and leakage and their amount in the fuel tank and the fuel pipe is detected properly in...
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6924733 |
Hose separation transmitter system and methods
A hose separation transmitter system includes a shock sensor and a transmitter that are secured to the delivery hose. If the hose becomes disconnected, the shock sensor will generate a shock signal...
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6705839 |
Control system and method for air compressor
In a device and a method for controlling an oiled air compressor ( 1 ), which is included in a compressed-air system ( 2 ) for a motor vehicle and which is driven by the engine ( 3 ) of the motor...
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6687622 |
Leak detection apparatus for blister packs
Apparatus for detecting a leak in one or more pockets of one or more blister packs is described. The apparatus comprises means to support the or each pack, means to apply a reduced pressure around...
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6652239 |
Motor controller for a hydraulic pump with electrical regeneration
Disclosure is made of a precision hydraulic energy delivery system that directly couples the pump to a primary mover (motor) and a related motor control. The system provides flow control of a...
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6547529 |
Dry tank shutdown system for pumps
A sensor, system, and method for determining whether sufficient water is present to safely operate a pump. The sensor includes first and second conductive fittings that are physically and...
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6422822 |
Pressurized seal for submersible pumps
A submersible pump employs a sealed, oil-filled chamber with a moisture-sensing probe to detect the presence of any pumpage, such as water, which has leaked into the chamber. If contamination is...
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6186171 |
Pneumatically driven liquid supply apparatus
In a pneumatically driven liquid supply apparatus comprising a circulation pump 26 or constant-volume pump 34 for supplying a washing liquid or chemical to a washing tank 20 for semiconductor...
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6168385 |
Rotary device with means for monitoring and adjusting the clearance between the rotors
A rotary device (11) has a first rotor (12) rotatable about a first axis and having at its periphery a recess (14). A second rotor (13) is counter-rotatable to said first rotor (12) about a second...
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6094970 |
Leak detector for a pump
A leak detector for a pump having a plurality of stacked diaphragms includes a plurality of flat spacer rings each having discontinuous channels and being disposed in face-to-face abutting and...
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6086331 |
Safety pumping system for hazardous environments using pressurized gas in a plurality of chambers
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5718269 |
Safety tank apparatus for liquid storage
A safety tank apparatus is provided for installation to receive and store a liquid hydrocarbon or hydrocarbons, or the like, and from which the liquid may be withdrawn. It comprises tank structure...
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5501577 |
Gas operated pump leak preventer
A technique for detecting and containing liquid leaks in a liquid pumping, gas-operated diaphragm pump, and for stopping the pump operation when such leaks occur. If there is a leak in such a pump,...
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5360033 |
Oil transfer system
A hazardous fluid removal and storage apparatus for the fail-safe removal and storage of hazardous liquids. An electrically monitored and electro-pneumatically controlled system provides safe...
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5244567 |
Pressure filter with means to detect break in pressurizing membrane
A pressure filter for suspensions comprises a boiler shaped outer shell (1) the front side of which is closed by a detachable lid (11), a tubular filter element (15) which projects from the lid, a...
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5192194 |
Explosion proof compressor and a method for explosion proofing a compressor
An explosion proof compressor and method for explosion proofing a compressor for use with air conditioning or refrigeration system in a hazardous location where flammable gases or vapors may exist...
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5174722 |
Safety shutdown circuit for pneumatic pump system
A safety shutdown circuit for a pneumatic pump system. The pump system includes a manifold assembly for discharging pumped liquid. The liquid is discharged from the system by a reciprocating piston...
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5100303 |
Agitator and pump assembly
An agitator and pump assembly adapted to be trailed behind a vehicle and to be moved into a manure pond, wherein the apparatus includes a pump housing at the end of an elongated frame supported on...
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5090871 |
Junction assembly with leak detection means
A junction assembly with leak detection means comprising a pair of mating surfaces forming the junction of two fluid conduits, means forming an annular containment chamber in at least one of the...
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5064347 |
Pressure responsive fluid pump shut off and alarm system
A pump supply system for furnishing well water or the like which is sensitive to and operates within a range defined by a pressure switch to supply water when pressure in the system falls below a...
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5049048 |
Hose pump
A hose pump has a housing (10) with a pressure connection (14) and an intake connection (12). A hose (22) is connected to the pressure connection and the intake connection and rests against the...
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5000663 |
Automatic tubing lock for ultrasonic sensor interface
An ultrasonic air-in-line detection system for use in detecting air bubbles in the fluid line of a disposable cassette mounted on a main pump unit is disclosed which automatically loads the outlet...
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4873650 |
Water flow controller
A water flow controller times periods of uninterrupted water flow through a valve and closes the valve whenever a timed period exceeds a preselected duration.
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4856969 |
Fluid powered diaphragm pump with cycle timer
A hydraulically activated diaphragm pump. A pressure source is coupled to a pump diaphragm during a pump discharge stroke. During this discharge stroke, an air activated return assist cylinder is...
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4840542 |
Infusion pump with direct pressure sensing
An infusion pump incorporates a cassette formed by bonding of two substantially flat sheets. The fluid to be infused to the patient comes into contact only with the cassette. The cassette includes...
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4784763 |
Water purification machine
A method and apparatus for purifying water to two different laboratory quality levels of purity, both of which are made available for dispensing. Ordinary tap water is prefiltered and treated by...
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4781535 |
Apparatus and method for sensing diaphragm failures in reciprocating pumps
Apparatus for monitoring the diaphragm integrity in a diaphragm pump. A single continuous circuit trace is supported on a pump diaphragm. An electrical circuit is connected to the continuous...
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4661045 |
Leakage detection in remote supply painting system
A painting apparatus has a peristaltic pump having a pump cavity in a pump body and a pumping tube in the cavity. The cavity is provided with an elongate drain passage. A photoelectric sensor is...
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4658986 |
Pressure-monitoring system
A pressure-monitoring system for detecting pressure between a fuel pump in a fuel storage tank and a fuel dispenser in automotive fuel service stations. The pressure-monitoring system utilizes a...
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4576553 |
Painting applicator with remote supply
A paint roller is provided with a removable sleeve receiving a cover having a pile on a stretchable flexible backing. A reversible, speed controllable pump on a hand cart provides paint to the...
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4293281 |
Mobile air charging system
A compressor system which may be mounted for mobile use including dual power systems for driving the compressor. An electric motor is located in driving relationship to the compressor so that air...
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4161957 |
Leakage protective apparatus for storage containers or the like
A leakage protective apparatus for the outlet line of a storage container for flowable material includes a conduit arrangement which connects a storage container and consumer and itself includes a...
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4135859 |
Pollution control device adapted for attachment to reservoir gland stuffing boxes
An oil reservoir gland stuffing box employed to extend the service life of the packing by providing an oil reservoir to maintain essential lubrication is provided with an attached container which...
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4056333 |
Intravenous feeding pump failure alarm system
The present invention relates to a failure alarm system for an intravenous feeding pump in which the pumping force is secured by the projection of a plunger into a chamber filled with the liquid to...
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4017214 |
Packing gland leak retriever device
Disclosed is a leak retriever for the packing gland on oil well pumps. The leak retriever has a reservoir disposed about the packing gland to collect oil which leaks through the gland and an...
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3914752 |
PUMP ALARM SYSTEM
An alarm system for a high pressure reciprocating pump includes a detector member positioned adjacent the pump packing for detecting leakage of fluid therepast, and an alarm indicator responsive to...
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3816025 |
PAINT SPRAY SYSTEM
A fluid circulation system for a paint spray installation or the like with a recirculating primary fluid circuit from a reservoir through the pump to the work stations and back to the reservoir. A...
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3746472 |
SUBMERSIBLE ELECTRIC PUMP HAVING FLUID PRESSURE PROTECTIVE MEANS
A submersible electric motor driven pump having a motor chamber and a pump chamber separated by a seal chamber. A shaft seal is immersed in oil in the seal chamber and prevents the flow of liquid...
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3614264 |
IONIZATION GETTER PUMP
A pair of electrically conducting collector electrodes are disposed in a housing on either side of an anode. A cathode is disposed between the anode and each collector electrode and insulated from...
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3302753 |
Hydraulic elevators
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3184958 |
Conduit system
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3180134 |
Leak detector for oil well pump
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3176623 |
Protective system for a diaphragm pump
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3087431 |
Apparatus for monitoring production or transportation equipment by detecting and indicating malfunction of pump
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2969799 |
Pumping system
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2915975 |
Means for detecting stuffing box leakage
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