34results about How to "Facilitates an airtight seal" patented technology

This invention is related to a portable texture-spraying apparatus for uniformly dispersing a viscous material. This apparatus broadly includes a tank assembly having a body with an inner wall that defines a sealed cavity, and a piston assembly slidably disposed within the sealed cavity. The piston assembly divides the sealed cavity into an air-side chamber and a material-side chamber by providing an airtight seal therebetween. Additionally an air-control assembly is provided that broadly includes a pressure-control mechanism configured for receiving compressed air and routing a controlled pneumatic pressure to a directional valve configured for adjusting between a dispensing mode and a loading mode. In dispensing mode, the directional valve routes the controlled pneumatic pressure to the air-side chamber biasing the piston assembly toward the material-side chamber. In loading mode, the directional valve releases the air-side chamber to the atmosphere allowing for filling the material-side chamber with viscous material.

A method for atmosphere modification in a container during the sealing process that includes deploying a closure head on the container so as to enclose at least the container-opening and create an air-tight seal such that an interior volume of the closure head is isolated from the ambient atmosphere. The closure head having at least one conduit providing fluid communication between the interior volume and at least one of a vacuum source and a pressure source. The method also includes creating at least a partial vacuum inside the container, inserting a replacement atmosphere into the container by means of the pressure source, sealing the container; and removing the closure head from the container. Devices for implementing this method are also disclosed.

The present invention relates to the structural technical field of phased array antenna TR modules, in particular to an airtight TR module with double-sided assembled transceiver chips, including a module body, and chambers are respectively arranged on both sides of the module body, and the chambers There are signal transmission paths including several transceiver chips, and at least one transceiver chip of the signal transmission path is set on the radio frequency link carrier board, so that when the TR module is prepared, the transceiver chips located on both sides of the module body are assembled and welded separately on different parts The surface is convenient for heating and uniform temperature during welding, improves the welding quality, facilitates the repair of TR modules, realizes the reliability of assembling transceiver chips on both sides of TR modules, and also facilitates the airtight sealing of the chamber as a whole, realizing TR The overall airtightness of the module reduces the sealing connector and welding process between the airtight part and the non-airtight part of the existing TR module, and reduces the preparation time and cost of the TR module.

The invention relates to a refrigerating and freezing device, comprising at least two storage modules stacked vertically, a storage space is defined inside each storage module, and there is at least one rotation between two adjacent storage modules. The locking device is detachably connected. Each rotary locking device includes a locking mechanism and a rotating mechanism respectively arranged on two adjacent storage modules. The rotating mechanism is configured to be operable to rotate in a vertical plane, and to When the first position locked with the locking mechanism is locked, the two adjacent storage modules are locked and connected, and when the two adjacent storage modules are rotated in the second direction opposite to the first direction to the second position separated from the locking mechanism, the two adjacent storage modules are released. connection between storage modules. After adopting the technical solution of the present invention, not only can the reliability and firmness of the connection between two adjacent storage modules be guaranteed, but also the storage modules can be easily disassembled and assembled by only one person, and the operation is simple and labor-saving.

A fluid injection device includes a housing and a valve stem. The housing includes an inlet arm having an inlet orifice for receiving a feeder fluid. An outlet arm has an outlet orifice to discharge a mixed fluid. A venturi tube is between the inlet and outlet arms. The inlet arm, veturi tube and outlet arm define a nonlinear fluid pathway where the venturi tube redefines a portion of the nonlinear fluid pathway as a constricted fluid pathway. A diverter port is used to divert a portion of the feeder fluid from the inlet arm into the container and an injection port is used to receive product from the container. A valve arm is collinearly aligned with the venturi tube and the valve stem is positioned within the valve arm and adjusts the volume of the constricted fluid pathway.

A safety medical connector includes a composite inner pipe, a first resilient element, a sealing element, and a housing. The first resilient element hermetically seals the entrance of the housing, and the sealing element hermetically seals the exit of the housing; hence, thanks to the double hermetic seal structures, the safety medical connector is leakproof and airtight. When in use, part of the composite inner pipe is secured and stationary, thereby enhancing structural stability.

This invention is related to a portable texture-spraying apparatus for uniformly dispersing a viscous material. This apparatus broadly includes a tank assembly having a body with an inner wall that defines a sealed cavity, and a piston assembly slidably disposed within the sealed cavity. The piston assembly divides the sealed cavity into an air-side chamber and a material-side chamber by providing an airtight seal therebetween. Additionally an air-control assembly is provided that broadly includes a pressure-control mechanism configured for receiving compressed air and routing a controlled pneumatic pressure to a directional valve configured for adjusting between a dispensing mode and a loading mode. In dispensing mode, the directional valve routes the controlled pneumatic pressure to the air-side chamber biasing the piston assembly toward the material-side chamber. In loading mode, the directional valve releases the air-side chamber to the atmosphere allowing for filling the material-side chamber with viscous material.

The present invention regards a metal composition suitable for originating a joint (22) by means of welding with a borosilicate glass for a solar collector (10). The composition, expressed in weight percentage, comprises the following alloy elements Table 1 and it is such that 45.5≰(Ni+Co)≰46.5, and that (Ti+Ta+Zr)≧4×C, the remaining part being made up of iron, apart from the inevitable impurities. The invention also regards: a metal ring (20) made of the metal composition described above and suitable for originating a metal-glass joint by means of welding; the metal-glass joint thus obtained; and the tubular solar collector (10) thus obtained.

The invention relates to a refrigerating and freezing device. The refrigerating and freezing device comprises a box body, a door body and a door gasket. A storage space is defined in the box body, thebox body is provided with a box shell used for forming the exterior of the box body, and an inner container used for forming the interior of the box body, and each of the front portions of two side plates of the box shell is provided with a box shell connecting part used for being connected with the inner container. The door body is connected with the box body and used for opening and / closing thestorage space. The door gasket is arranged on the backward surface of the door body, and when the door body is in a closed state, air-tight seal is formed between the box body and the door body. Thefarthest ends, stretching in the transverse direction from outside to inside, of the external sections, exposed out of the exterior of the box body, of the box shell connecting parts do not exceed thepositions where the initial ends, stretching in the transverse direction from outside to inside, of the sections, adjacent to the box shell connecting parts, of the door gasket, when the door body isin the closed state, the door gasket tightly makes contact with the inner container of the box body, thus, the possibility of heat leakage generated at the position of the box shell due to the heat bridge effect is reduced, then cooling capacity losses are effectively reduced, and the energy consumption of the refrigerating and freezing device is reduced.

The invention relates to a refrigeration and freezing device. The refrigeration and freezing device comprises a basic-layer module with a freezing storage unit and a refrigerating system. Storage space is defined in the freezing storage unit. The refrigerating system comprises an evaporator used for being subjected to heat exchange with airflow flowing through the evaporator so as to at least provide cooling airflow for the freezing storage unit. A common air supply connector and two common air return connectors are arranged at the top of the basic-layer module. A primary air supply air flue and two primary air return air flues are arranged in the basic-layer module. The primary air supply air flue communicates with the storage space on the upper portion of the freezing storage unit, and the top end and the bottom end of the primary air supply air flue are connected to the common air supply connector and an evaporator chamber where the evaporator is located correspondingly. The top ends of the two primary air return air flues are connected to the two common air return connectors correspondingly, and the bottom ends of the two primary air return air flues are directly or indirectlyconnected to the evaporator chamber. According to the refrigeration and freezing device, a user can conveniently attach one or more function modules of other types to the basic-layer module.

Disclosed is a gasket structure for a fuel cell separator with an improved air tight seal / sealability. The gasket structure includes first and second main lines and a plurality of sub lines. The first and second main lines are disposed in a horizontal direction in the separator on different lines of a reaction surface and a cooling surface of the separator, respectively. The plurality of sub lines are disposed in a vertical direction of the separator on both surfaces at a uniform interval. Here, the first and second main lines and the plurality of sub lines integrally form a gate for reactance gases and cooling water, and a plurality of vacant spaces are formed to have a uniform size on the first and second main lines.

PROBLEM TO BE SOLVED: To provide an optical element with a lens tube having good hermetic bonding between the lens tube and the optical element and excellent hermetic seal of an optical module, and a method of manufacturing the same.SOLUTION: An optical element 1 with a lens tube includes a metal lens tube 2 and an optical element 4 subjected to hermetic bonding with an inner peripheral surface 3 of the lens tube 2. A metal oxide layer 5 containing at least one element of iron, cobalt, nickel, and copper is formed on the surface of the lens tube 2. A lens tube composition surface 3a is an area on a surface in contact with the optical element 4. The thickness of the metal oxide layer 5 formed on the lens tube composition surface 3a is thicker than the thickness of the metal oxide layer 5 formed on the surface of the lens tube 2 excluding the lens tube composition surface 3a.