Abstract: An explosion-proof electrical machine and, more specifically, to an electrical machine comprising an internal pressure reduction device. The internal pressure reduction device comprises a base for installation in a region of the casing below the connection box, a base being configured to receive a plurality of volume filling pieces; wherein the base comprises a bottom part and a part of wall which is extended by at least a part of the periphery of the bottom part. The base may further comprise at least one engaging means for each piece of the plurality of volume filling pieces.

Abstract: A precision detection device for a force standard machine includes a first hydraulic cylinder, a pipeline and a force loading device. A liquid medium is disposed in, the first hydraulic cylinder, and a liquid level area of the liquid medium is a known Value. The pipeline is a hollow tubular structure, and a first end of the pipeline is communicated with the liquid medium in the first hydraulic cylinder. The force loading device acts on the liquid medium, in the first hydraulic cylinder to produce a pressure increment or a pressure intensity increment on the, liquid medium. A force value comparison machine and a precision detection method for a force standard machine are also provided.

Abstract: A safe water heater comprises a housing assembly, a box assembly, and a water inlet and outlet assembly. The housing assembly comprises a first housing with a mounting cavity. The box assembly comprises a water tank with a water-containing cavity. The water inlet and outlet assembly comprises a water inlet subassembly and a water outlet subassembly. The water inlet subassembly comprises a second water inlet pipe communicating with the water-containing cavity, a first water inlet pipe able to communicate with outside, and a leak-proof mechanism. The leak-proof mechanism is capable of sealing a water inlet of the second water inlet pipe.

Abstract: A method for adapting the control of the feed temperature of a heating installation to a building to be heated or at least to a building part to be heated, with which the heating installation supplies the building or the building part with heat by way of a heat transfer medium led in the circuit. The circuit comprises at least one temperature-controlled heating circuit. The flow rate of the heat transfer medium in the circuit is registered in a continuous manner or in temporal intervals. The adaptation of the control of the feed temperature is effected automatically in dependence on the registered values.

Abstract: A winch includes a motor having a motor housing including a motor case and an integrated first drum support attached to the motor case for closing an end of the motor case. A gear reduction unit is drivingly attached to the motor and has a gear housing including a gear case and second drum support attached to the gear case. A tie plate is connected to the first and second drum supports. A control unit is removably mounted to the tie plate. A rotatable drum is supported by the first and second drum supports.

Abstract: An auxiliary vehicle lighting system is provided for use in a vehicle having an engine and an electrical system. The system has at least one auxiliary vehicle light; a control hub, connected to the vehicle electrical system and to each auxiliary vehicle light; and a system shut down function or program, connected to the control hub and configured to de-energize the auxiliary lighting system. The control hub is constructed and arranged so that upon illumination of the auxiliary vehicle lights and with the engine turned off, the vehicle battery voltage is monitored. If the battery voltage reaches a designated low voltage target, the system shut down function or program is activated, which de-energizes the auxiliary lights.

Abstract: A pivot supporting structure for a circuit breaker and a circuit breaker. The pivot supporting structure includes: a supporting body having a supporting hole for receiving and pivotally supporting a pivot pin connected to an actuating mechanism of the circuit breaker, wherein at least one strain gauge are mounted to the supporting body for sensing the force acting on the pivot supporting structure by the actuating mechanism. This pivot supporting structure can accurately sense the characteristic force applied, such that the contact force and mechanical characteristics of the circuit breaker can be on-line monitored.

Abstract: An apparatus and a system, as well as a method and an article, may include operating a positive displacement motor having a pair of output orifices including a selectably movable outer output orifice disposed proximate to a fixed inner output orifice. Operation may include rotating the outer output orifice about the longitudinal axis of the motor when drilling fluid is flowing through the pair of orifices to control fluid pressure pulse amplitude from the outer output orifice. Additional apparatus, systems, and methods are disclosed.

Abstract: A pilot burner assembly includes a bracket, a thermo-electric device configured to be connected to the bracket, and a unitary pilot guard. The bracket includes a first plate and a second plate spaced from the first plate. Each of the first and second plates have a pilot guard aperture defined therein. The pilot guard has a first end defining a gas inlet configured to receive a gas supply line, and a second end defining a gas outlet. The pilot guard includes an elongate body and a pilot hood disposed at the second end, and is configured be inserted into the pilot guard apertures. The pilot guard further includes a first retention element configured to cooperate with a second retention element on the gas supply line to maintain a connection between the pilot guard and the gas supply line.

Abstract: When a power element expands in a direction of a uniaxial center, a diaphragm is pressed, in the direction of the uniaxial center, against a pressing portion of a lid member fixed to a body unit. A holder member of the power element is displaced away from the pressing portion as the diaphragm further expands outward in the direction of the uniaxial center. Displacement of the holder member in the direction of the uniaxial center is transmitted to a spherical valve, thereby increasing or decreasing an opening degree of the spherical valve. Accordingly, it is not necessary to dispose a member which may cause complicated processing work for an expansion valve between the holder member and the spherical valve, e.g., a member which needs complicated welding processing work.

Abstract: The present invention provides a flow apparatus (10) having a flow control valve (12) having a housing (14), an aperture (16), an aperture obturator (18) and an actuator (20) for moving said obturator (16) between a first closed position and multiple open positions (B-L), characterised by a valve position monitor (21) for monitoring the position of the valve (12) and comprising a plurality of discrete sensors (28a to 28e) associated with a plurality of open positions (B-L) of said valve for monitoring the presence or absence of one or more members (26) movable with said valve (12). The arrangement may be used to monitor the valve position and such monitoring may be of use in the prediction of the amount of fluid remaining within a cylinder (32) to which it has been attached.

Abstract: A control device for a heating device includes: a thermostat having a control unit, the control unit being connected to an energy source which is used to operate the control unit. The energy source is configured to generate energy in response to the presence of temperature differences between two reference points.

Abstract: A bruxism sensor includes a diaphragm switch which provides an electrical output including a diaphragm separating a pressure side having a pressure side inlet and a suction side having a suction side inlet. An audible alarm having an electrical input is coupled to the electrical output. A first hose has one end is fluidically coupled to the pressure side inlet and a biting configured opposite end (biting end) for positioning between teeth of a user. Wherein upon a contraction of a mandible of the user, the biting end is squeezed which generates air pressure that is applied to the pressure side to generate a pressure level sufficient for activating the diaphragm switch, and while the diaphragm switch is activated, the audible alarm automatically sounds an alarm for alerting the user of contraction of their mandible.

Abstract: A switch (10, 200) is provided for installation in the air conditioning (A/C) system (12) in a vehicle (16) for intermittently operating the clutch (20) in the A/C system (12) each time the control (44) in the A/C system (12) provides power to operate the clutch (20) to prevent slugging. This turns the compressor (14) a few turns each time the clutch (20) is energized during intermittent operation to purge liquid refrigerant and lubricant from the compressor (14) to prevent slugging. The switch (10, 200) can be installed in existing vehicles by connecting the switch (10, 200) in the wiring harness (18) of the A/C system (12) to the power lead (38) from the control (44) to the clutch (20) and between the ground lead (40) from the clutch (20) and a ground. The switch (10, 200) can include a microcontroller (52) for controlling the operation of a power transistor (70) to intermittently ground the clutch to provide the intermittent operation.

Abstract: A combination pressure switch including a pressure switch moveable between open and closed positions in response to a working pressure of a fluid, the pressure switch including a contact assembly having first and second terminals electrically connected through a current-carrying member movable by the pressure switch, and a manual switch configured to move the current-carrying member independent of the movement of the pressure switch.

Abstract: The present invention relates to a type of pressure switch, particularly a type of pressure switch having a hand-controlled device, using a control rod on the hand control device to directly drive a second driving plate to move up and down, thereby to effortlessly open and close a release valve and power of the pressure switch.

Abstract: A sensing module for a fluid valve utilizes a sensor body having a sensing chamber. An extension member is fixedly coupled to a main valve element, is slidable within the sensing chamber along a first axis, and has an inclined cam surface. A plunger has a cam follower for engaging the cam surface and is slidable along a second axis between a first position when the valve element is in its deactuated position and a second position when the valve element is in its actuated position. The plunger is exposed to the sensing chamber. A sensing switch is coupled to the plunger for generating a switch signal indicative of the first and second positions. The valve body and the sensing body cooperate to form a fluid passage between the outlet port and the sensing chamber, and the plunger moves to the second position when the valve element is in the deactuated position if a fluid pressure greater than a predetermined pressure is present at the outlet port.

Abstract: A control system for stopping a plumbing-related flooding situation in a building includes at least one sensor for accumulating water and producing a low voltage electrical control signal when sufficient water is accumulated. An actuating system receives the control signal and in turn routes 110 volt current to an electrically activated valve located in a main feed conduit of the plumbing system. The reopening of the valve is achieved by a manually operated electrical switch.