Abstract: A whistle that includes a pea formed of two semi-spheres coupled together to form a non-spherical shape. The non-spherical shape results in unpredictable movement of the pea in a chamber of the whistle so as to produce a trill. An interior surface of the chamber may include flat portions that further cause unpredictable movement of the pea to produce the trill.

Abstract: For mounting on a wheel nut or similar a rotation indicator device includes a body of one piece construction having an annular portion to releasably fit in non-rotatable manner onto the nut and having an end wall portion provided with an indicator. The indicator is provided within the periphery of the device, at a position which, in use, overlies the nut to which it is fitted, by having at least one opening in the end wall portion with free edges configured as the indicator (e.g. pointer with tip). The one piece device may also include side walling of part annular configuration extending between the annular portion and the end wall portion with the free edges being where the side walling is not connected to the end portion. A support post may then extend between the annular portion and the end wall portion at a location remote from the side walling.

Abstract: A safety cone is configured to reflect light in any orientation. The safety cone has a base attached to an upper portion. The base further comprises a base top side and a base bottom side. Reflective material attached in a plurality of locations on the base top side and the base bottom side. The reflective material is configured to reflect the light in any orientation.

Abstract: Waste water assessment apparatus, a method and a computer program are provided. The waste water assessment apparatus comprises: transceiver circuitry configured to transmit a microwave signal and to receive one or more reflections of the microwave signal; and processing circuitry configured to process the one or more reflections of the microwave signal to determine one or more characteristics of waste water flowing through a conduit.

Abstract: An adjustable marking device for visual identification of a valve in a valve housing or a pipe comprises a substantially planar flexible body having a tail, a head, and a visual indicator. A permanent magnet is secured to the body for magnetic attachment to the housing or pipe. A fixing means holds the tail and the head when they are brought into overlapping proximity with one another to form an in use configuration to fit the housing or pipe. The visual indicator may be a color indicator and/or a directional indicator. A method is provided for visually identifying a valve in a valve housing or a pipe in a multi-valve distribution and/or treatment system by means of a color indicator and directional indicator of valve operation.

Abstract: Methods and systems are provided for detecting a fuel system leak. While a system vacuum pump is operated to supply vacuum to a vacuum consumption device, air exhausted from the vacuum pump is routed to a fuel system to apply positive pressure thereon. A fuel system leak is identified based on a rate of decay of the pressure applied from the vacuum pump.

Abstract: A safety alert device (200) is formed of a clip (210) and integrated whistle (220) coupled to a portable communication device (300). The clip and integrated whistle can be removed or re-oriented from the radio (300) to provide user access to the whistle. The removal or rotation of the safety alert device (200) having clip and integrated whistle can further enable emergency radio mode operation. The whistle (220) operates as a safety alert when the battery of the portable communication device is either charged or discharged.

Abstract: A portable device for rapidly inflating an inflatable bag is disclosed, which comprises at least one inlet intended to be connected to a source of compressed gas, in order to allow this gas to expand into an air intake chamber, the inlet being associated with a mechanism that triggers the release of the compressed gas to the air intake chamber, the latter having an opening allowing atmospheric air to be admitted and an outlet intended to be connected to the bag that is to be inflated. The device further comprises an intermediate distribution chamber for the compressed gas, which chamber is arranged between the inlet and the air intake chamber in order to connect the one to the other, and ejection holes arranged so as to open into a lateral wall of the air intake chamber in order to connect the latter to the intermediate distribution chamber.

Abstract: A three-dimensional, panoramic diver down flag visible having increased visibility is disclosed herein. In one embodiment, a diver down flag includes a first indicator and a second indicator positioned obliquely to the first indicator. A separation member is disposed between the first and the second indicator, the separation member configured to maintain an angular separation between the first and the second indicator.

Abstract: A system including a nitrogen oxide sensor and a controller is provided. The nitrogen oxide sensor is configured to generate a first signal indicative of nitrogen oxides content in an exhaust gas. The controller is communicably coupled to the nitrogen oxide sensor. The controller configured to receive the first signal indicative of nitrogen oxides content in the exhaust gas. The controller is also configured to receive a second signal corresponding to an operational parameter of a power source. Further, the controller is configured to compare a derivative of the first signal with a derivative of the second signal. The controller is configured to trigger an error counter when an absolute value of the compared derivative crosses a predetermined threshold. Thereafter, the controller is configured to determine a condition of the nitrogen oxide sensor based on a count of the error counter in a predetermined period of time.

Abstract: A safety marker apparatus comprising a hollow body including at least four vertex elements interconnected by flexible resilient rods, the body being adapted to be compressed into a stowed state upon application of an external force and expanded into a deployed state, the flexible resilient rods forcing the hollow body to adopt the deployed state in an absence of the external force. In one embodiment, an illumination sub-system is provided in at least one vertex element.

Abstract: A prescription pill vial with dosage indexer is disclosed. The prescription pill vial includes a body having a sidewall and bottom forming an enclosure for prescription medications. The sidewall extends below the bottom forming a cavity beneath the enclosure. A rosette is on the bottom of the body. The rosette has a plurality of detents thereon. An indexer is configured to fit into the cavity and rotate therewithin. The indexer has a spring-biased pawl that engages the detents on the rosette, limiting the rotation of the indexer to a number of predefined positions corresponding to the detents on the rosette.

Abstract: A device includes a resonator having an oscillating portion with dimensions chosen to lead to a desired resonant frequency. A light source is positioned to provide light along the length of the oscillating portion at a specific wave length. A detector detects a change in oscillation of the resonator responsive to the wave pressure produced by the light source heating a gas. The light source is modulated with a frequency the same as the resonant frequency of the resonator.

Abstract: A bell that rings when the entire rolling element bell is shaken, includes a base section having a recess, and a bell section that is supported directly or indirectly by the base section, a rolling element that is adapted to roll in the recess, the rolling element hitting the base section when the entire rolling element bell has been shaken, and the rolling element has rolled to reach an edge of the recess of the base section, and the rolling element bell being configured so that sound produced by the rolling element bell is adjusted by adjusting a contact angle or a contact height of the rolling element with an inner wall of the bell section.

Abstract: A system for measuring flow of process fluid through process piping, includes a flow restriction in the process piping generating a differential pressure between an upstream side of the restriction and a downstream side of the restriction. The differential pressure is related to flow of the process fluid. First and second upstream pressure transmitters are coupled to the process piping on the upstream side of the flow restriction and measure respective first and second upstream pressures. First and second downstream pressure transmitters are coupled to the process piping on the downstream side of the flow restriction and measure respective first and second downstream pressure of the process fluid. Flow rate of the process fluid is calculated based upon at least one upstream pressure and one downstream pressure. Further, degradation in at least one of the pressure transmitters is identified based upon at least two pressure measurements.

Abstract: Predicting subterranean formation damages from deformable additives in treatment fluids may include measuring exponential shear values for samples comprising a base fluid and at least one deformable additive. Then the relative pore plugging propensity of the deformable additives may be determined by comparing the exponential shear values or rheological values derived therefrom from either two or more deformable additives to each other or from one or more deformable additives to a pore plugging propensity scale.

Abstract: A gas monitoring apparatus and system that provides for reliable and accurate monitoring of gaseous hydrogen and other compounds in dielectric oil. The apparatus provides an environment for and is used in conjunction with metal oxide semiconductor sensors. Apparatus for creating a fluid-tight environment for the metal oxide semiconductor and a heating manifold are detailed.

Abstract: A flag pole assembly for use with a vehicle having a trailer hitch, the flag pole assembly comprising a horizontal member having oppositely disposed first and distal ends, wherein the horizontal member includes a first hole in the first end to attach the horizontal member to the hitch of a vehicle and the horizontal member is at least thirty inches long, a vertical member coupled to the distal end of the horizontal member and the vertical member extends upward, and at least one attachment link is affixed to the vertical member for attaching a first ornament.

Abstract: A visual sight flexible gas flow indicator has a truncated conical sleeve formed of flexible water repellent material tapered along its length from a larger diameter throat end to a smaller diameter exit end defining an interior. A threaded fitting secured to the throat end has an interior in fluid communication with the sleeve interior and is configured to be threadedly engaged in fluid flow communication with a conduit or bleeder valve of a vessel or piping system through which a gas to be monitored flows. The sleeve hangs flaccidly in a generally vertical position when no gas is flowing through the fitting and sleeve from the conduit or valve. Upon gas flowing through the fitting and sleeve from the conduit or valve, the sleeve becomes fully extended in a generally horizontal position to provide an external visual indication, from a distance, of gas flow and location of the leaking gas.

Abstract: A thermal convection type angular accelerometer includes an insulating substrate and an angular acceleration sensing device. The angular acceleration sensing device is disposed on the insulating substrate. The angular acceleration sensing device is configured to measure an angular acceleration of a rotation axis. The angular acceleration sensing device comprises a sensing group. The sensing group comprises two temperature sensing members and a heater disposed between the two temperature sensing members. The distance between two ends of the two temperature sensing members near the rotation axis is greater than the distance between the other two ends of the two temperature sensing members that are farther from the rotation axis.