32results about How to "Eliminate cavities" patented technology

The electric fuel oil pump suitable for fuel containing alcohol has a shell, an inner casing inside the shell to constitute together with the shell one cavity serving as the main fuel oil conveying flow channel, and a motor set inside the inner casing and with gap among its parts serving as the secondary fuel oil conveying flow channel. While over 80 % of the fuel oil is conveyed through the main fuel oil conveying flow channel, the rest flows through the secondary fuel oil conveying flow channel to lubricate and clean the inside parts and cool the rotor and the stator, so as to raise the work efficiency of the motor. There are one non-return valve set at fuel inlet hole inside the secondary fuel oil conveying flow channel and one conic friction pair at the lower bearing on the end of the vane wheel to further raise the operation reliability and safety.

A method for manufacturing pellets of hot-melt ink which includes the steps of filling molten ink into a mold cavity defined by a first die and a second die of a mold, allowing the ink to cool down and solidify in the mold cavity, and heating at least one of the first and second dies for re-melting the surface of the ink pellet to facilitate its removal from the mold cavity.

Disclosed is a liquid cooling system for use with MRI positioned video projectors to dissipate heat from the projector light source through liquid cooling. The system includes a heat sink body for mounting to the projector light source, the heat sink body constructed of a material to transfer heat away from the projector light. A remotely mounted motor-driven pump provides fluid circulation, the pump is constructed and / or mounted so as to not to be effected by the MRI magnetic field. The pump is coupled to the heat sink block by use of flexible tubing that is constructed and arranged to provide heat transfer to the environment thereby maintaining the projector light source temperature at a reduced level. A liquid reservoir is fluidly coupled to the pump intake for use in maintaining liquid levels at an optimum position.

A circuit module of the present invention includes a circuit board, a plurality of electronic parts mounted on one face of the circuit board, a tubular body provided in an upstanding manner on the face in surrounding relation to the electronic parts, a turned-back portion turned back inwardly at a predetermined height position of the tubular body, and a resin portion formed by a sealing resin which is filled in the tubular body to a height reaching a distal end of the turned-back portion such that the resin covers at least part of the electronic parts. With this construction, the two surfaces of the sealing resin and the turned-back portion are joined together, so that the joining strength increases, and there can be provided the circuit module which is of the thin type and has a high strength. Further, through holes are provided at a region of the turned-back portion exposed from the sealing resin, and therefore a cavity within the turned-back portion (within a U-shaped portion), which is due to expansion of residual gas, can be eliminated, and besides the development of a convex portion formed on the upper surface of the resin by a cavity formed in the resin by gas moved from the interior of the turned-back portion into the resin and also the development of a crater-like irregularity portion formed on the upper surface of the resin portion when gas within the frame passes to the upper surface of the resin can be suppressed.

The present invention relates to a shipping container for cryopreserved biological samples in which a cryopreserved sample can be maintained on arrival at its destination for a period of time, for example several months.

Disclosed is a liquid cooling system for use with MRI positioned video projectors to dissipate heat from the projector light source through liquid cooling. The system includes a heat sink body for mounting to the projector light source, the heat sink body constructed of a material to transfer heat away from the projector light. A remotely mounted motor-driven pump provides fluid circulation, the pump is constructed and / or mounted so as to not to be effected by the MRI magnetic field. The pump is coupled to the heat sink block by use of flexible tubing that is constructed and arranged to provide heat transfer to the environment thereby maintaining the projector light source temperature at a reduced level. A liquid reservoir is fluidly coupled to the pump intake for use in maintaining liquid levels at an optimum position.

A collector includes one or more air / oxygen / gas introduction ports to form a bubbler that produces curtains of air / oxygen / gases into the waterway. The bubbler can be integrated into the collector, or formed as a separate component used with or without the collector. First and second pumps provide for improved removal of sediment collected in the collector cavity.

A method and apparatus for optimizing the forging of a workpiece that is moved along a longitudinal axis of a forging press. The method includes detecting the relative positions of the first and second ends of the workpiece along the longitudinal axis and calculating a length of the workpiece therebetween.

The invention provides an upper prefabricated member-lower prefabricated member butting structure and an upper prefabricated member-lower prefabricated member combination face grouting method, aiming to overcome the effect on structural safety due to the fact that failure to exhaust air in a hollow cavity leads to cavities formed in upper layer-lower layer combination faces finally when the combination faces of upper and lower shear walls and upper and lower frame columns are grouted. The upper prefabricated member-lower prefabricated member butting structure comprises an upper prefabricated member and a lower prefabricated member which are butted, the combination face of the two prefabricated members is grouted, and at least one of the prefabricated members is provided with an exhaust passage with one end extending out of the combination face of the prefabricated member and the other end extending out of other surfaces thereof. The upper prefabricated member-lower prefabricated member butting structure and the upper prefabricated member-lower prefabricated member combination face grouting method have the advantages that both structural safety and construction quality are guaranteed, and the butting structure and the grouting method are suitable for grouting of the combination face of the upper and lower prefabricated members.

An improved sidewall fitting is disclosed with a fitting body and one or more flanges disposed about the fitting body. Plaster catches disposed along a face of one flange and positioned approximately coextensively with the fitting body. The bodies of the plaster catches may be curvilinear-shaped, straight or concentric rings and the body portions may be of heights for aligned or off-setting configurations. The fitting is installed the plaster catches oriented directly below the body of the fitting, along a generally horizontal plane. Plaster is layered over the flange and plaster catches, and up to the opening in the fitting body. The plaster catches may be disposed along a posterior face of a flange, or simultaneously along the anterior and posterior faces. A second fitting type includes an extension surface for increased bonding with the plaster with additional surface area available for sealing with the plaster. Disposed onto the sealing surface is a leave-out strip, which protects the sealing surface during cementing. After removal of the leave-out strip, the sealing surface provides an uncontaminated surface on which a sealant may be liberally applied. Optionally, a seal may be provided on the sealing surface interposed between the leave-out strip.

Aircraft fuel tank access door systems and methods incorporating one or more of an outer fuel tank access door completely encapsulated by a dielectric material and an inner fuel tank access door comprising at least one drainage feature are disclosed. These systems and methods reduce or prevent (i) fuel pooling on the inner fuel tank access door, (ii) moisture pooling between the inner and outer fuel tank access doors, and (iii) p-static build up and lightning attachment to the outer fuel tank access door to increase safety, reduce the likelihood of corrosion and ease installation of the fuel tank access door system.

The electric fuel oil pump suitable for fuel containing alcohol has a shell, an inner casing inside the shell to constitute together with the shell one cavity serving as the main fuel oil conveying flow channel, and a motor set inside the inner casing and with gap among its parts serving as the secondary fuel oil conveying flow channel. While over 80 % of the fuel oil is conveyed through the main fuel oil conveying flow channel, the rest flows through the secondary fuel oil conveying flow channel to lubricate and clean the inside parts and cool the rotor and the stator, so as to raise the work efficiency of the motor. There are one non-return valve set at fuel inlet hole inside the secondary fuel oil conveying flow channel and one conic friction pair at the lower bearing on the end of the vane wheel to further raise the operation reliability and safety.

The invention discloses a vacuum grouting device and a grouting method for a prestress long distance, large diameter and multiple curvature duct. The grouting device comprises a grouting pump and a vacuum pump. The grouting device is characterized by further comprising a slurry inlet buffer and a slurry outlet buffer. The slurry inlet buffer is arranged between the grouting pump and an entrance ofa to-be-poured duct, and the slurry outlet buffer is arranged between an outlet of the to-be-poured duct and the vacuum pump. According to the vacuum grouting device and the grouting method, as the vacuum pump works continuously in a grouting process, the slurry inlet buffer separates air in a grouting rubber tube initially, the slurry outlet buffer prolongs a vacuumizing time and the duct is kept in a vacuum state or an approximately vacuum state all the time, the duct is filled with the slurry. The vacuum grouting device is easy to operate and solves the problem of tedious steps as different grouting process methods are needed in different slurry types.

Provided is a circuit module comprising a circuit substrate, a plurality of electronic parts mounted on one face of the circuit substrate, a cylindrical member so erected from that face as to enclose the electronic parts, a folded portion folded inward at a predetermined height position of the cylindrical member, and a resin portion constituted of such a sealing resin to cover the electronic parts at least partially in the cylindrical member as is filled to a level to reach the leading end of the folded portion. This constitution joins the sealing resin and the two faces of the folded portion so that it can provide the circuit module which has an increased strength and which is thin but has a high strength. Moreover, through holes are formed in such a region of the folded portion as is exposed from the sealing resin. As a result, it is possible not only to eliminate the cavity, which might otherwise be formed in the folded portion (or the C-shaped portion) by the expansion of the residual gas, but also to suppress the bulge, as might otherwise be created on the upper resin face by the cavity which is formed by the gas moved from the inside of the folded portion to the resin, or the crater-shaped undulations, as might otherwise be created in the upper face of the resin portion when the gas in the frame goes to the upper face of the resin.

The disclosure addresses a relief valve suitable for use in systems for delivering relatively viscous fluids. The described relief valve includes a housing and a valve mechanism moveable relative to an opening into the housing to allow or prevent flow from a flow path adjacent the relief valve into and through the housing. The relief valve is configured to minimize, and in many examples, essentially eliminate, a cavity between the housing opening and the adjacent flow path. Elimination of this cavity offers significant advantages as it minimizes or eliminates a location for pumped materials to accumulate and / or cure, which can lead to impairment or disabling of the relief valve operation.