A leak detector structure includes a base, a valve cylinder assembly, a rotary latch and an expansion member, the base includes a valve body, an inlet joint and an outlet joint, a receiving channel is defined in the valve body. The valve cylinder assembly includes a valve cylinder, a rotatable handle and a torsion spring, the valve cylinder is inserted in the receiving channel and connected with the rotatable handle, a communicating channel is defined in the valve cylinder, the communicating channel is operably passable or blocked with respect to the inlet joint and the outlet joint, and the torsion spring is fixed to the rotatable handle for pre-twisting. The rotary latch is pivotally connected to the base, and the rotary latch includes a snapping portion for engagement with the corresponding rotatable handle and a passive arm extended from the snapping portion.

A valve includes a holder having an expandable material. The valve includes a retainer coupled to the holder. The valve further includes an umbrella member with a stem coupled to the holder. The expandable material is adapted to expand in size when absorbing a fluid and translate the umbrella member along an axis of the stem.

A connecting device through which a gas can flow, for connecting a port of a surgical instrument to a reprocessing device for cleaning the surgical instrument, the connecting device including: a self-actuating valve with a swellable material body.

To prevent a gasket fitted into a groove of a housing of a thermostat device from coming off and the leakage of coolant. A cover member detachably attached to a thermostat device includes a housing that has a body having an opening at one end and a groove surrounding the opening and a pair of legs standing inside the groove from one end of the body, and a gasket to be fitted into the groove. The cover member has a dish-shaped portion that has an insertion hole through which the pair of legs is inserted and covers the gasket, and a cylindrical portion erecting from the opening edge of the insertion hole and into which the pair of legs are press-fitted inside, and a corrugated section is formed in the portion of the cylindrical portion opposite to the legs.

There are provided moisture sensing devices. These devices can be used to sense moisture in various mediums. They also can be used to control irrigation through use in valves and electronic switches and data feedback devices.

A leak detector structure includes a base, a valve cylinder assembly, a rotary latch and an expansion member, the base includes a valve body, an inlet joint and an outlet joint, a receiving channel is defined in the valve body. The valve cylinder assembly includes a valve cylinder, a rotatable handle and a torsion spring, the valve cylinder is inserted in the receiving channel and connected with the rotatable handle, a communicating channel is defined in the valve cylinder, the communicating channel is operably passable or blocked with respect to the inlet joint and the outlet joint, and the torsion spring is fixed to the rotatable handle for pre-twisting. The rotary latch is pivotally connected to the base, and the rotary latch includes a snapping portion for engagement with the corresponding rotatable handle and a passive arm extended from the snapping portion.

The invention relates to a sanitary insertion unit (1) with a flow regulator (2) that has a regulator housing (3) in which a first regulator unit (4) is provided. The first regulator unit has an annular channel (5) that surrounds a core (6) and in which an annular throttle element (7) made of an elastic material is arranged. The throttle element (7) delimits a control gap between the throttle element and a profiled regulating section (8) provided on an inner and/or outer channel wall, the passage cross-section of said gap being modifiable by the throttle element (7), which deforms under the effect of the pressure difference generated in the event of a flow. At least one inner second regulator unit (9) is provided in the core (6) of the first regulator unit (4), this second regulator unit (9) likewise having an annular channel (10) with an annular throttle element (12) which is made of an elastic material and is arranged in the annular channel, and the throttle element (12) delimits a control gap between the throttle element and a profiled regulating section (13). The insertion unit according to the invention is characterized in that the insertion unit (1) has a jet regulator (14) which has a cup-shaped jet splitter (16) in the jet regulator housing (15). The cub base of the jet splitter forms an impact surface (17) which deflects the water coming from the regulator units (4, 9) outwards transversely to the jet regulator longitudinal axis towards passage openings (18) in the circumferential wall of the cup-shaped jet splitter (16). The insertion unit according to the invention is characterized in that the insertion unit can achieve a good aeration and a good mixture of the fluid with the surrounding air even with a low pressure of the through-flowing fluid.

A water-inflow prevention device is provided by installing a closing lid 6 for blocking a duct 2 of an air pressure regulating valve 1, which regulates air pressure inside a cabin 101. A buoyant body 9 is attached to the disc-shaped closing lid 6 installed to the duct 2 so as to be rotatable around a rotation shaft 7. The buoyant body 9 receives a buoyant force from water when immersed in the water. Since the side of the closing lid 6 in which the buoyant body 9 is attached is thereby floated in the water, the closing lid 6 automatically rotates around the rotation shaft 7 so as to close a ventilation port 2a.

An exterior aircraft light comprises a housing defining an interior space; a light output generation unit comprising at least one light source; power supply electronics, coupled to the light output generation unit for driving a light out-put of the exterior aircraft light; and a draining device for draining the interior space. The draining device comprises a first drainage tube for receiving fluid, which is to be drained from the interior space; a second drain-age tube for receiving fluid, which is to be drained from the interior space; and a fluid discharge port for discharging fluid out of the housing, wherein the fluid discharge port is in fluid communication with the first drainage tube and with the second drainage tube. Each of the first drainage tube and the second drainage tube comprises a valve mechanism for selectively sealing and opening the respective drainage tube with respect to the interior space.

A valve includes a holder having an expandable material. The valve includes a retainer coupled to the holder. The valve further includes an umbrella member with a stem coupled to the holder. The expandable material is adapted to expand in size when absorbing a fluid and translate the umbrella member along an axis of the stem.