A blast gate for a vacuum system includes a chassis connectable to a duct and defining a flow passage therethrough, and a gate connected to the chassis and rotatable about a central axis. The gate includes a first portion, an intermediate portion and a second portion spaced apart circumferentially about the central axis. The first portion defines a flow aperture, the intermediate portion defines an auxiliary flow aperture, and the second portion includes a partition. Each of the first portion, second portion and third portion is selectively rotatable into fluid alignment with the flow passage. The blast gate further includes a motor connected to the gate and selectively operable to rotate the gate about the central axis.

A blast gate for a vacuum system includes a chassis connectable to a duct and defining a flow passage therethrough, and a gate connected to the chassis and rotatable about a central axis. The gate includes a first portion, an intermediate portion and a second portion spaced apart circumferentially about the central axis. The first portion defines a flow aperture, the intermediate portion defines an auxiliary flow aperture, and the second portion includes a partition. Each of the first portion, second portion and third portion is selectively rotatable into fluid alignment with the flow passage. The blast gate further includes a motor connected to the gate and selectively operable to rotate the gate about the central axis.

A hydraulic valve arrangement (1) is provided comprising comprising a supply port arrangement having a high pressure port (2) and a low pressure port (4), a working port arrangement having two working ports (6, 7), a first valve (13) arranged between said high pressure port (2) and said working port arrangement (6, 7), a second valve (14) arranged between said low pressure port (4) and said working port arrangement (6, 7), a controller (19) for controlling said first valve (13) and said second valve (14), said controller (19) having an input connection (20) for receiving a signal of an operator input device, and a regenerative flow path which can be established by means of at least one of said first valve (13) and said second valve (14). The function of such a hydraulic valve arrangement should be enhanced. To this end said controller (19) said controller interrupts said regenerative flow path when a feed pressure at said working port arrangement (6, 7) exceeds a predetermined pressure level.

A static sealing gasket of elastically deformable type, the gasket extending in elevation parallel to an axial direction perpendicular to a join plane, the gasket forming a closed loop around the axial direction and presenting a cross-section in each transverse half-plane of shape making it possible to ensure that the gasket is properly positioned inside a groove of a substantially complementary shape. Such a gasket comprises a body made of elastically deformable material, each cross-section of the gasket at rest being a polygon that is not regular and that is transversely asymmetrical.

A method of manufacturing a sealing component includes defining a configuration for the sealing component, wherein the configuration comprises a cross-section comprising a first wall and a second wall joined by a turning wall to form a generally U-shape, the first wall and the second wall comprising a variable cross-sectional thickness, wherein the cross-section is taken along a plane extending along an axial axis of the sealing component and the cross-section extends in a circumferential direction. The method also includes depositing a powder into a chamber, applying an energy source to the deposited powder, and consolidating the powder into a layer according to the defined configuration.

A low-weight, low material automated line blind valve with an actuator for moving the blind between an open and closed position, a sealing mechanism that can create a tight seal with the blind in either the open or closed position, and a biasing mechanism to improve the seal, wherein the biasing mechanism includes a ring with a sealing lip capable of creating a tight seal with a mating surface.

The present disclosure relates to an E-liquid flow control mechanism and electronic cigarettes having the E-liquid flow control mechanism. The electronic cigarette may include: an electronic cigarette body, a vaporizer, and an E-liquid flow control mechanism. Electronic cigarette body includes an E-liquid storage tank, a mouthpiece, and an electronic cigarette base. The vaporizer having a heating element, and an E-liquid storage medium, is positioned on a vaporizer base. The E-liquid flow control mechanism defines an E-liquid flow control opening, and has an E-liquid flow control handle. When the E-liquid flow control handle is lifted all the way up, the E-liquid flow is blocked. When the E-liquid flow control handle is pushed all the way down, the E-liquid flow reaches maximum. When the E-liquid flow may be controlled by a user by pushing down or pulling up the E-liquid flow control handle between the highest point and the lowest point.

Turbo or super charged intake tract diverter valve system, upstream of a throttle valve, includes a closure means (10) for a diversion aperture (4.1) in the intake tract (3) to vent pressurised gases within to a bypass path or atmosphere; the closure means having a transfer aperture (12) facilitating a net three due to a pressure differential on its opposite sides of the closure means (10) so as to close or keep closed the diversion aperture (4.1). When gas pressure on opposite sides of the closure means is equal, and when an upstream side (10.1) of the closure means (10) has a pressure greater than a downstream side (5.1), then it will open the diversion aperture (4.1). An actuation means opens a control aperture (6) to create the necessary pressure differential on the closure means (10) to thereby cause same to open the diversion aperture (4.1).

A gas valve unit for controlling a gas throughput routed to a gas burner of a gas appliance includes a valve housing, an actuation shaft which is able to set an opening cross section of the gas valve unit, and a stop valve. A linearly-displaceable connection element transmits a movement of the actuation shaft to the stop valve. The connection element has a plastic bend forming an overpressure protection.

An equalization valve includes a valve body defining a gate slot; a gate defining an equalization chamber, a first equalization channel, and a second equalization channel, the equalization chamber and the first and second equalization channels defining an equalization pathway across the gate; and an actuation stem slidable within the equalization chamber between a first chamber position, wherein the actuation stem blocks the equalization pathway, and a second chamber position, wherein the actuation stem unblocks the equalization pathway; wherein the actuation stem is further slidable within the gate slot of the valve body between a first valve position, wherein the gate is seated with the valve body, and a second valve position, wherein the gate is unseated from the valve body.