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 invention relates to a door seal for a refrigeration and freezing device and the refrigeration and freezing device. The door seal includes a mounting portion for mounting the door seal on a door body of the refrigeration and freezing device and an air bag portion connected to the upper portion of the mounting portion and used for forming air-tight seal between the door body and a box body of the refrigeration and freezing device. The air bag portion is provided with a main air bag for extrusion contact with the box body, two internal auxiliary air bags symmetrically arranged on the side lower portion of the main air bag and two external auxiliary air bags symmetrically performing embracing on the transverse outer sides of the main air bag and the two internal auxiliary air bags. The refrigeration and freezing device includes the box body, the door body and the door seal, wherein the box body is provided with a storage space for storing articles; the door body is connected to the front side of the box body, so as to open and / or close at least part of the storage space; the door seal is mounted on the door body and configured to form air-tight seal between the door body and the box body when the door body is a closed state. The refrigeration and freezing device with the door seal is very low in cold leakage amount and good in sealing performance.

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.

The invention discloses urban swill environment-friendly classification treatment and utilization equipment. An equipment main body is provided with a controllable slag removal chamber; an oil-water separation chamber is next to one side of the controllable slag removal chamber; a cover plate is movably arranged on the outer surface of the upper end of the slag removal chamber; a lifting handle isfixedly arranged in the middle position of the outer surface of the upper end of the cover plate; a vibration reduction plate is fixedly arranged on the inner wall of the slag removal chamber; a connecting rod is fixedly arranged on the outer surface of one side, far away from the inner wall of the slag removal chamber, of the vibration reduction plate; a rotating shaft is movably arranged between the outer surfaces of the middle position of the two adjacent connecting rods. The urban swill environment-friendly classification treatment and utilization equipment has the advantages that the waste slag treatment and oil water separation can be simultaneously realized; the solid waste slag and the sludge can be discharged into a waste slag recovery pool; through further treatment, the solid waste slag and sewage can be fermented at the inside and can be used for power generation and manufacturing of a series of feed, so that reutilization is realized. The waste slag and the sewage can beprevented from being discharged to the ground, so that the environment pollution caused by the sewage can be avoided; the environment protection effect is achieved.

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 at least one storage module, a refrigerating module used for providing cooling air flow for the at least one storage module and a display control module used for displaying information and receiving touch operation, wherein storage space is defined in each storage module. Each storage module is directly or indirectly attached to the refrigerating module and is provided with a mounting portion used for mounting of the display control module. The display control module is removably mounted in the mounting portion of any storage module. When a user needs to demount or replace one storage module, only the display control module needs to be mounted in the mounting portion of the neededstorage module; it is guaranteed that the refrigeration and freezing device has the normal display control function, the user can be allowed to freely increase and decrease or replace the storage modules according to needs, and the diversification requirements of the user are met; and the development period and cost of the refrigeration and freezing device are reduced.

Provided are: an airtight terminal which is devised so that a can case and the airtight terminal can be sealed together in a simpler and less inexpensive way; an electric device package; and a methodfor manufacturing an electric device package. Provided is an airtight terminal comprising: a lid body made of a dish-shaped metal thin plate having a through-hole in a plate surface thereof; a lead penetrating through the through-hole of the lid body; and an insulating material sealing the lead and the lid body together in an airtight manner. The lid body includes, along a peripheral portion thereof, an engaging portion for seamed sealing with the can case. The airtight terminal is further provided with: a lid body made of a dish-shaped metal thin plate having a through-hole; a metal ring which is passed through the through-hole of the lid body and is fixed to the lid body in an airtight manner; a lead penetrating through the metal ring; and an insulating material sealing the lead and themetal ring together in an airtight manner. The lid body may be deformed along the peripheral portion thereof into an airtight terminal having an engaging portion for seamed sealing with the can case.

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.

The invention relates to a refrigerating and freezing device, comprising a refrigerating module and at least one storage module. The refrigeration module has a refrigeration system for providing cooling airflow, an air supply duct for the cooling airflow generated by the refrigeration system to flow to at least one storage module, and a return air duct for allowing return air in at least one storage module to flow to the refrigeration system. Air duct; the interior of each storage module defines a storage space, and has an air supply duct for cooling air flow into its storage space and a direct or indirect return air for supplying its storage space flow to the return air duct of the refrigeration module; the above-mentioned at least one storage module is detachably stacked on the top of the refrigeration module in the vertical direction. The air ducts are connected in a sealed manner, and the return air ducts of two adjacent modules up and down are connected in a sealed manner. Thus, the mutual independence of the refrigeration module and each storage module is realized, which is convenient for maintenance and replacement.

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.