Abstract: A housing assembly for a contactor, wherein the housing assembly comprises a frame made of ferromagnetic material surrounding a contact chamber for separable contacts of the contactor, and an encloser made of insulative material at least in sections enveloping the frame internally and externally, wherein the encloser comprises at least one pocket for receiving a blow-out magnet of the contactor, wherein the frame is at least sectionwise exposed for contact in the at least one pocket. The frame improves the mechanical stability of the housing assembly and offers a suitable path for conducting the magnetic flux from the blow-out magnet. Further, the present invention relates to an electrical switching device with such a housing assembly.

Abstract: The present disclosure refers to a method for building a SERS substrate from metal nanoparticles for determining the content of phosphonate-based scale inhibitors present at low concentrations in water using surface-enhanced Raman spectroscopy (SERS). The substrates also are used in detergent and dispersant products, in corrosion inhibitors and in water treatment systems in general, such as cooling water and boiler water, in addition to being applied in other fields such as the textile, concrete and paper industries.

Abstract: The present invention relates to a process and system capable of processing large volumes of petroleum samples to withdraw a sufficient amount for water characterization in petroleum, without the need for sample fractionation and subsequent volume recomposition. This reduces the number of steps and processing time, with low risk of contamination or decharacterization due to losses of important fractions. This process is carried out through the system consisting of the insulated and heated reservoir (1), temperature transmitter (2), temperature controller (3), electric resistance (4), flow control valve (5), blocking valves (6a; 6b; 6c; 6d), temperature indicator (7), self-desludging stacked plate centrifuge (8), oil sampling point (9), water sample extraction system (10), capillary tube (11), vacuum pump (12), water sample container (13), oil outlet (15), water inlet for activating the desludging (16), cleaning fluid inlet (17), outlet or vent (18).

Abstract: Provided is a portable cylinder including a tank having a mounting collar coupled to an upper portion of the tank, and a handle assembly attached to the mounting collar. The mounting collar has an upwardly extending portion and a plurality of circumferentially spaced tabs extending radially outwardly from the upwardly extending portion, wherein a respective gap is formed between adjacent ones of the plurality of circumferentially spaced tabs. The handle assembly includes a handle having a shroud portion and a handle portion extending from the shroud portion, and an attachment member configured to be coupled to the shroud portion to prevent rotational movement of the handle relative to the collar, the attachment member having a body, a first projection projecting from a front wall of the body for engaging the shroud portion, and a second projection projecting from a back wall of the body for engaging the shroud portion.

Abstract: Provided is a handle assembly for a cylinder. The handle assembly includes a handle support configured to couple to a valve of the cylinder. The handle support includes a body having first and second ends circumferentially spaced from one another to define a gap and a longitudinal passage opening to a top and bottom of the body for receiving the valve, and first and second deflectable arms projecting from the body. The handle assembly also includes a handle rotatably coupled to the handle support. The handle including a top portion, first and second side portions, and an attachment member coupled to the first and second deflectable arms of the handle.

Abstract: Provided is a portable cylinder including a tank having a mounting collar coupled to an upper portion of the tank, and a handle assembly attached to the mounting collar. The mounting collar has an upwardly extending portion and a plurality of circumferentially spaced tabs extending radially outwardly from the upwardly extending portion, wherein a respective gap is formed between adjacent ones of the plurality of circumferentially spaced tabs. The handle assembly includes a handle having a shroud portion and a handle portion extending from the shroud portion, and an attachment member configured to be coupled to the shroud portion to prevent rotational movement of the handle relative to the collar, the attachment member having a body, a first projection projecting from a front wall of the body for engaging the shroud portion, and a second projection projecting from a back wall of the body for engaging the shroud portion.

Abstract: Provided is a handle assembly for a cylinder. The handle assembly includes a handle support configured to couple to a valve of the cylinder. The handle support includes a body having first and second ends circumferentially spaced from one another to define a gap and a longitudinal passage opening to a top and bottom of the body for receiving the valve, and first and second deflectable arms projecting from the body. The handle assembly also includes a handle rotatably coupled to the handle support. The handle including a top portion, first and second side portions, and an attachment member coupled to the first and second deflectable arms of the handle.

Abstract: Provided is a portable cylinder including a tank having a mounting collar coupled to an upper portion of the tank, and a handle assembly attached to the mounting collar. The mounting collar has an upwardly extending portion and a plurality of circumferentially spaced tabs extending radially outwardly from the upwardly extending portion, wherein a respective gap is formed between adjacent ones of the plurality of circumferentially spaced tabs. The handle assembly includes a handle having a shroud portion and a handle portion extending from the shroud portion, and an attachment member configured to be coupled to the shroud portion to prevent rotational movement of the handle relative to the collar, the attachment member having a body, a first projection projecting from a front wall of the body for engaging the shroud portion, and a second projection projecting from a back wall of the body for engaging the shroud portion.

Abstract: An arc quenching system includes an arc-extinguishing unit and an arc-blowing magnetic unit. The arc-extinguishing unit extinguishing an arc discharge produced upon a switching operation of a contact pair from a closed state to an open state. The contact pair having a static contact and a movable contact which is movable relative to the static contact between the closed state and the open state in which the movable contact is spaced apart from the static contact by a gap. The arc-blowing magnetic unit creates a magnetic field having a plurality of magnetic field lines that cross a gap region of the contact pair along a predetermined magnetic field direction. The arc-blowing magnetic unit creates the magnetic field lines with an orientation based on an electrical polarity of the static contact and a positioning of the arc-extinguishing unit to magnetically blow the arc discharge toward the arc-extinguishing unit.

Abstract: Provided is a handle assembly for a cylinder. The handle assembly includes a handle support configured to couple to a valve of the cylinder. The handle support includes a body having first and second ends circumferentially spaced from one another to define a gap and a longitudinal passage opening to a top and bottom of the body for receiving the valve, and first and second deflectable arms projecting from the body. The handle assembly also includes a handle rotatably coupled to the handle support. The handle including a top portion, first and second side portions, and an attachment member coupled to the first and second deflectable arms of the handle.

Abstract: A sensor assembly is positioned on an exterior of a tank to measure a fluid level within the tank. The tank is modified to include a surface feature and the sensor assembly is slotted within that surface feature. The sensor assembly includes a sensor device and a control circuit configured to drive the sensor device and evaluate readings to determine the fluid level. The sensor assembly further includes a communications interface to enable communication with a management system via a communications network. The management system can store information (e.g. fill status) related to the tank and additionally communicate with vendors or end users to coordinate resupply.

Abstract: A sensor assembly is positioned on an exterior of a tank to measure a fluid level within the tank. The tank is modified to include a surface feature and the sensor assembly is slotted within that surface feature. The sensor assembly includes a sensor device and a control circuit configured to drive the sensor device and evaluate readings to determine the fluid level. The sensor assembly further includes a communications interface to enable communication with a management system via a communications network. The management system can store information (e.g. fill status) related to the tank and additionally communicate with vendors or end users to coordinate resupply.

Abstract: The innovation described herein generally pertains to a system and method related to a pressure vessel including a tank formed of an injected tank liner with co-injected boss and permeation barrier film surrounded by a layer of thermoplastic composite filament winding and a protective jacket disposed thereon that facilitates stacking and portability of the pressure vessel and provides an air passage for convective heat transfer between the tank and the environment.

Abstract: A sensor assembly is positioned on an exterior of a tank to measure a fluid level within the tank. The tank is modified to include a surface feature and the sensor assembly is slotted within that surface feature. The sensor assembly includes a sensor device and a control circuit configured to drive the sensor device and evaluate readings to determine the fluid level. The sensor assembly further includes a communications interface to enable communication with a management system via a communications network. The management system can store information (e.g. fill status) related to the tank and additionally communicate with vendors or end users to coordinate resupply.

Abstract: Provided is a handle assembly for a cylinder. The handle assembly includes a shroud configured to attach to a collar of the cylinder to surround a valve port of the cylinder, the shroud having a first plurality of circumferentially spaced deflectable fingers extending downward in a first direction, and a second plurality of circumferentially spaced deflectable fingers extending upward in a second direction, and a handle configured to attach to the shroud, the handle having a body configured to surround and abut the shroud, and a first plurality of circumferentially spaced openings extending through the body. The first plurality of circumferentially spaced deflectable fingers are deflectable to engage respective openings in the collar to attach the shroud to the collar, and the second plurality of circumferentially spaced deflectable fingers are deflectable to engage a respective one of the first plurality of circumferentially spaced openings in the handle.