Example aspects of a pressure monitoring system for a wet barrel hydrant, a pressure monitoring and leak detection system for a wet barrel hydrant, and a method for using a pressure monitoring and leak detection system are disclosed. The pressure monitoring system for a wet barrel hydrant can comprise a pressure sensor assembly comprising a pressure sensor and a connector, the pressure sensor configured to measure the pressure of a fluid received in the wet barrel hydrant, the connector configured to attach the pressure monitoring system to the wet barrel hydrant; a mounting flange coupled to the pressure sensor assembly; a main PCB configured to process pressure data measured by the pressure sensor; an antenna configured to send a signal representative of the pressure data; and a housing coupled to the mounting flange, the housing enclosing the processor and the antenna.

A sensor device determines measured values of a property of a fluid, in particular of a gas, in a cavity of a gas turbine engine having a duct for carrying the fluid from the cavity to a sensor element. A data processing device is coupled to the sensor element and processes the measured values. The data processing device has a device for detecting changes in the measured values with respect to time, and an evaluation device, by which the changes in the measured values with respect to time can be detected. If there is a deviation in the changes in the measured values with respect to time from a predefined criterion, a signal relating to an at least partial blockage of the at least one inlet duct can be output. A measurement method is also disclosed.

A system for identifying plugging within an agricultural implement is provided. The system includes a ground engaging tool configured to be supported by the agricultural implement. A fluidic actuator is coupled to the ground engaging tool. The fluidic actuator is operable to adjust the ground engaging tool between a lifted position and a ground engaging position. A pressure sensor is configured to measure a pressure of fluid supplied to the fluidic actuator. A controller is communicatively coupled to the pressure sensor. The controller is configured to receive, from the pressure sensor, a signal that corresponds to the pressure of fluid supplied to the fluidic actuator. The controller is further configured to determine when the ground engaging tool is plugged based at least in part on the signal from the pressure sensor.

The present invention refers to a device for detecting the pressure of compressed gas cylinders in breathing apparatuses for scuba diving which can be powered by means of a battery, provided with a pressure sensor. The device allows the housing of sensors with sufficiently large dimensions, guaranteeing precise gas cylinder pressure readings. Furthermore, the elements that guarantee the watertight seal of the device can be replaced in a practical effective manner.

The present invention refers to a device for detecting the pressure of compressed gas cylinders in breathing apparatuses for scuba diving which can be powered by means of a battery, provided with a pressure sensor. The device allows the housing of sensors with sufficiently large dimensions, guaranteeing precise gas cylinder pressure readings. Furthermore, the elements that guarantee the watertight seal of the device can be replaced in a practical effective manner.

The present disclosure describes speech or sound-emulating bottle cap apparatuses and systems and methods for manufacture thereof. It will be understood that a bottle cap prohibits gases from escaping a pressurized bottle. Ordinarily, when the cap is removed from the bottle, the escaping gas will emit a sound, but the sound carries no discernable meaning, cognizable message or recognizable sound (aside from gas simply escaping a pressurized container). Embodiments described herein harness gas escaping from a bottle (when the cap is removed) to generate a discernable meaning, cognizable message or otherwise recognizable sound. The sound-chamber may be wrapped or twisted into a coil or helix shape (in addition or as an alternative to miniaturizing it). A coil or helix shape permits recovery of the original sound quality of the initially modeled sound-chamber, resulting in “a sound-emitting cap-chamber” removably or permanently coupled to a bottle cap or bottle as described herein.

Inflatable device pressure gauge apparatus and methods are described. According to one aspect, an inflatable device pressure gauge apparatus includes a housing, an attachment mechanism configured to attach the pressure gauge apparatus to an inflatable device which comprises an air chamber which is configured to be inflated to an increased pressure above atmospheric pressure during use of the inflatable device, a pressure sensor coupled with the housing and configured to sense pressurized air from the air chamber of the inflatable device and to output a signal corresponding to an air pressure within the air chamber, a processor configured to process the signal from the pressure sensor and to control generation of a user perceptible emission regarding the air pressure of the air chamber as a result of the processing of the signal, and a power source coupled with the housing and configured to provide electrical energy to the processor.

A multifunction tank access device is configured for connection to a storage tank capable of storing crude oil that has an opening for a conventional thief hatch. The multifunction tank access device has a lower assembly with an isolation valve, and an upper assembly removably connected to the lower assembly. The upper assembly includes a central housing, a pressure relief module, a vacuum relief module, and a tank access module. In some embodiments, at least a portion of the multifunction tank access device is constructed from a material that melts at a temperature below 450° F.

A multifunction tank access device is configured for connection to a storage tank capable of storing crude oil that has an opening for a conventional thief hatch. The multifunction tank access device has a lower assembly with an isolation valve, and an upper assembly removably connected to the lower assembly. The upper assembly includes a central housing, a pressure relief module, a vacuum relief module, and a tank access module. In some embodiments, at least a portion of the multifunction tank access device is constructed from a material that melts at a temperature below 450° F.

Method for determining a pressure in a pressure cell, the method consisting in determining a measuring signal (x) that is at least proportional to a measured pressure in the pressure cell, generating an output signal (y) from the measuring signal (x) using a filter unit (10) comprising a transfer function by at least reducing, preferably eliminating, a noise signal contained in the measuring signal determining a change over time of the measuring signal (x), and setting the transfer function as a function of the change over time of the measuring signal (x). A measuring cell arrangement is also specified.