A control and supply unit for an actuating device of a choke, a valve, a blow-out preventer or some other device applied in the field of oil and natural gas production. The control and supply unit includes a vibration detection means to detect vibrations caused by a conveyed flow. The conveyed flow can be controlled by the actuating device.

Disclosed is an apparatus for analyzing the composition of bodily fluid. The apparatus can include a fluid handling network including a patient end configured to maintain fluid communication with a bodily fluid in a patient and a pump unit in operative engagement with the fluid handling network. The pump unit can have an infusion mode, in which the pump unit is operable to deliver infusion fluid to the patient through the patient end, and a sample draw mode, in which the pump unit is operable to draw a sample of the bodily fluid from the patient through the patient end. The apparatus can include a spectroscopic analyzer positioned to analyze at least a portion of the sample; a processor in communication with or incorporated into the spectroscopic analyzer; and stored program instructions executable by the processor to obtain measurements of two or more properties of the sample.

A modular water leakage detector includes a housing that carries a plurality of water leakage sensors, an electrical water shutoff valve, and circuitry coupled thereto. In response to sensing water leakage, the circuitry actuates the valve to shut off a water supply. Detectors can communicate alarm indicating signals directly with one another. The detectors can include a wireless transmitter and communicate with a displaced alarm monitoring system.

An ultrasonic flowmeter includes a measurement pipe through which a fluid flows, and two ultrasonic transceivers provided on outer side portions of the measurement pipe so as to be spaced apart from each other in an axis direction. In the method of producing the ultrasonic flowmeter, fabricating the measurement pipe in advance is fabricated, and then is set in a mold as an insert. Two transmitting bodies are formed by insert molding on the outer side portions of the measurement pipe so as to be spaced apart from each other in the axis direction, so that the two transmitting bodies are integral with the measurement pipe. The two ultrasonic transceivers are mounted on the two transmitting bodies, respectively.

A heating, ventilation, or air conditioning (HVAC) system with automated flow direction detection is provided. The HVAC system includes one or more hoses configured to provide airflow from HVAC equipment, a bidirectional pressure sensor coupled to the hoses, and a controller coupled to the bidirectional pressure sensor. The controller is configured to receive a signal from the bidirectional pressure sensor, determine a direction of the airflow relative to the bidirectional pressure sensor based on the signal, correct the signal for a reversed hose polarity relative to the bidirectional sensor based on the direction of the airflow, and perform a control activity using the corrected signal.

An ultrasonic flowmeter includes a measurement pipe through which a fluid flows, and two ultrasonic transceivers provided on outer side portions of the measurement pipe so as to be spaced apart from each other in an axis direction. In the method of producing the ultrasonic flowmeter, fabricating the measurement pipe in advance is fabricated, and then is set in a mold as an insert. Two transmitting bodies are formed by insert molding on the outer side portions of the measurement pipe so as to be spaced apart from each other in the axis direction, so that the two transmitting bodies are integral with the measurement pipe. The two ultrasonic transceivers are mounted on the two transmitting bodies, respectively.

Disclosed is an apparatus for analyzing the composition of bodily fluid. The apparatus can include a fluid handling network including a patient end configured to maintain fluid communication with a bodily fluid in a patient and a pump unit in operative engagement with the fluid handling network. The pump unit can have an infusion mode, in which the pump unit is operable to deliver infusion fluid to the patient through the patient end, and a sample draw mode, in which the pump unit is operable to draw a sample of the bodily fluid from the patient through the patient end. The apparatus can include a spectroscopic analyzer positioned to analyze at least a portion of the sample; a processor in communication with or incorporated into the spectroscopic analyzer; and stored program instructions executable by the processor to obtain measurements of two or more properties of the sample.

The present invention applies to flowing wells. Within a flowing well, production tubing moves fluid upward under immense pressures and is greatly exposed to damage, either accidental, or intentional. Recently, there is increased concern in protecting our production wells from damage, either natural or man-made. The present invention is designed to address the problems of controlling hydrocarbon, and fluid flow, through production tubing after the production tubing is compromised by penetration or severance.

A spring-operated relief valve can include a biasing assembly, a valve inlet, a valve seat, a disc assembly that is biased toward the valve seat by the biasing assembly, and a disc insert secured to the disc holder. The disc insert can include a body, a sealing surface to seal against the valve seat, and a groove formed in the sealing surface of the disc insert, the groove to operate as a fluid guide to divert a portion of fluid flow during a relief event into the groove. The disc holder can extend past the sealing surface of the disc insert to direct fluid flow during a relief event.

An actuated valve system operates (open/close) automatically under overpressure condition. The system includes an on/off valve assembly, a spring actuator assembly configured to actuate the on/off valve assembly to open or close a path for the pressurized fluid, a lock mechanism with one locking yoke and two rotatable locking handles, a collapsible pin type pressure sensing assembly configured to trigger the action of the spring actuator assembly, and a pressure sensing line. The collapsible pin type pressure sensing assembly includes a body, a plunger with two stems, one of which is rigidly connected with the locking yoke, and a collapsible pin, which mechanically fails when the fluid pressure reaches the predetermined level. When the collapsible pin fails, the plunger moves together with the locking yoke, and the locking yoke loses its restriction to the motive element of the spring actuator assembly, and thus trigger the operation of the actuated valve system.