33results about How to "Destroy surface tension" patented technology

The present invention provides a gutter screen attachment and a ridged filter assembly for minimizing water film runoff and debris collection adjacent a screened gutter. The screen attachment comprises a superior breaker edge, an inferior breaker edge, and a screen-receiving region. The superior breaker edge extends upwardly opposite the inferior breaker edge and is designed to break the water tension of a water film formed upon the gutter screen. The ridged filter assembly comprises a filter support grid, a filter screen and a ridge-forming member sandwiched between the filter support grid and the filter screen. The filter screen is form fit to the underlying structures and the ridge-forming member thus forms a water tension straining ridge upon the filter screen. The superior breaker edge and the filter screen ridge function to allow water to permeate through the gutter screen.

An electrical connector includes an insulating body, having at least one receiving housing running through the insulating body; at least one conductive member, comprising a contact portion disposed in the receiving housings, and has a middle part higher than two ends; a pair of first retaining arms, extending downwards from one end of the contact portion, wherein a retaining hole is formed between the two arms, and each of the two arms has a hook portion extending towards the retaining hole; a second retaining arm, extending downwards from the other end of the contact portion, wherein the second retaining arm extends towards the retaining hole, and has a width smaller than the retaining hole; and at least one solder ball, disposed in the receiving housing, received in the retaining hole, and pressed against by the two hook portions of the two first retaining arms and the second retaining arm.

A capping device for capping a print head of a printer includes a cap for capping the print head, a supporting structure for mechanically engaging and disengaging the cap with the print head, and an elastic structure installed inside the cap. The top of the cap is lower than the top of the elastic structure. Before the supporting structure engages the cap with the print head, the top of the elastic structure bends outward and contacts the print head in an incomplete sealed manner.

In a covered wastewater reservoir, a gas passage is defined under the membrane cover and along the sides of the reservoir. An accumulation of bio-gases is held captive between the membrane cover and the liquid surface in a central region of the reservoir relative to the gas passage, by a flap-valve attachment condition extending between the accumulation of bio-gases and the gas passage. The new method for breaking this flap-valve attachment condition and for allowing bio-gases to flow from the accumulation of bio-gases toward the gas passage, consists of periodically and momentarily increasing a pressure in the gas passage to equal or to slightly exceed a pressure in the accumulation of bio-gases. In another aspect, the membrane cover is provided with a stiff and rough-surfaced bottom layer to facilitate the breaking of flap-valve attachment conditions when the pressure under the cover is made equal everywhere.

The invention provides an efficient heat-exchange tube for an evaporator, and belongs to the technical field of evaporation heat-exchange tubes in air conditioner and refrigerating systems. The efficient heat-exchange tube comprises a tube body and outer fins, wherein a groove is formed in the top of each outer fin, and the area between every two adjacent grooves forms a fin platform. The efficient heat-exchange tube is characterized in that semi-grooves are formed in one side or two sides of each outer fin at intervals, a liquid stopping groove is formed on the wall, facing one side of the adjacent outer fin, of each semi-groove, the bottom of each semi-groove is provided with a steam bubble size control boss, and each groove comprises a fin top groove channel and an auxiliary fin top groove channel. By enlarging the area of the evaporation heat-exchange area outside the tube and the number of holes of nucleate boiling, steam bubbles formed by steam rapidly become big and overflow; heat transmission can be enhanced, flowing of fluid can be stopped, interference to the fluid is improved, surface tension of the fluid is damaged, a working medium fluid film is effectively expanded, evaporation is accelerated, and the evaporation and heat exchange effects are improved; the tube and adjacent fins can form an inverted-concave shape, the sizes of the steam bubbles can be controlled, and the heat-exchange performance outside the tube is further enhanced.

A method for performing balloon catheterization of a zone of attention is provided. An intravascular device has an expandable portion secured to a distal end of a catheter tube. The expandable portion has a number of struts, at least one having an incising element extending perpendicular therefrom. The intravascular device is placed within a person's vascular system and moved to the zone of attention where the expandable portion is expanded and manipulated along the zone of attention to score the atherosclerotic material located in the blood vessel. Subsequently, a balloon catheter device is moved to the zone of attention and inflated to compress or fragment the scored atherosclerotic material.

The invention provides a high-low fin reinforced condensation heat exchange tube. The high-low fin reinforced condensation heat exchange tube comprises a tube body and first-stage outer fins in a spiral state, wherein the first-stage outer fins are of an integral structure and are in a spiral state, spaces between adjacent first-stage spiral outer fins form channel structures communicating with each other, and sharp secondary spiral outer fins are arranged at the bottoms of the channels; first grooves which are staggered with the channels and communicate with the channels are formed in the topof the first-stage spiral outer fins to form a fin tip structure with uneven height; and second grooves which are staggered with the channels and communicate with the channels are formed in the secondary spiral outer fins; and meanwhile, the inner surface of the tube body is provided with inner threaded ribs which extend spirally in the axial direction. The high-low fin reinforced condensation heat exchange tube has the advantages that the heat exchange surface area inside and outside the tube can be increased, a liquid film can be thinned by the high and low fin structure outside the tube, the liquid discharging speed of refrigerants on the surface of the fins is increased, the heat exchange effect of a condensation tube is improved, the internal thread rib structure in the tube is beneficial to improving the flowing state of fluid in the tube, and thus the effect of heat exchange between inside and outside of a reinforcing tube is achieved.

The invention relates to a thin material and a sanitary pad with the same. The thin material comprises a basal body, a plurality of first ribs and a plurality of second ribs, wherein the first ribs are arranged adjacently, and the second ribs are arranged adjacently; the basal body comprises a first surface, a second surface opposite to the first surface, and a plurality of drainage holes which penetrate through the first and second surfaces; the first surface of the basal body extends towards the direction away from the second surface to form the first ribs; the first ribs define an end surface which is a certain distance away from the first surface, and also define a plurality of diversion regions in a surrounding mode; the drainage holes are distributed in the first diversion region and communicated with each other; the second ribs are formed on the end surface of the first ribs in a staggered mode; and the second ribs define a plurality of second diversion regions, which are communicated with the first diversion regions, in a surrounding mode. After the surface tension of the liquid is orderly damaged by the second and first ribs, the liquid is quickly discharged through the drainage holes, thereby enhancing the liquid permeation effect. In addition, the contact surface of the second ribs contact the skins of a user to decrease the contact area, and the second and first ribs are connected with each other in a staggered mode, so that the thin material feels delicate, thereby enhancing the use comfort level.

The present invention provides a drainage assembly and a cooking device, wherein the drainage assembly includes: a plate body and at least one drainage plate, the plate body is provided with a drainage part; at least one drainage plate is arranged on the plate body, any of the at least one drainage plate A diversion plate covers the drainage part at most. When the condensed water gathers at the drain part, the diversion plate can reduce the contact area between the condensed water and the plate body, that is, where the diversion plate is installed, the condensed water does not contact the surface of the plate body. The contact area between the condensed water and the plate body is reduced, thereby destroying the surface tension of the water, so that the condensed water can be smoothly discharged through the drainage part, reducing the workload of manual cleaning of the accumulated water on the plate body, and avoiding the leakage of water due to condensed water. Bacteria build up and problems occur.

The invention relates to a thin-layer matter and a sanitary pad with the thin-layer matter. The thin-layer matter comprises a substrate, a plurality of first convex ribs which are mutually and adjacently arranged and a plurality of second convex ribs which are mutually and adjacently arranged, the substrate comprises a first surface, a reverse second surface and a plurality of weep holes which penetrate the first surface and the second surface, the first convex ribs are formed by that the substrate protrudes and extends from the first surface to the direction which is far away from the secondsurface, the first convex ribs define an end surface which is separated from the first surface with a distance and define a plurality of first flow guide areas by enclosing, the weep holes are distributed in each first flow guide area and are mutually communicated, the second convex ribs are staggered to be formed on the end surface of the first convex ribs, and the second convex ribs define a plurality of second flow guide areas which are communicated with the first flow guide areas by enclosing. The invention allows the surface tension of liquid to be sequentially damaged by the second and the first convex ribs and allows the liquid to be rapidly discharged by the weep holes, thus enhancing the liquid infiltration effect. In addition, the contact surfaces of the second convex ribs are contacted with the skin of a user to reduce the contact area, the second and the first convex ribs are staggered for connection, so the tactile sensation of the thin-layer matter is finer and the comfort of the usage is improved.

The invention discloses a laminar object capable of controlling the flow direction of a fluid and a sanitary product with the laminar object. The laminar object comprises a matrix, the matrix is convexly provided with a plurality of convex ribs which are arranged adjacent with each other, the convex ribs surround and define a plurality of flow guide areas, the flow diversion areas are distributedwith a plurality of through holes, the convex ribs are provided with a plurality of depressed areas, and the flow guide areas can be communicated with one another by means of the depressed areas. Thus the surface tension of the liquid can be effectively destroyed, and the liquid can be quickly guided to the adjacent flow guide areas through the depressed areas and is output through the through holes on the flow guide areas to ensure that the surface of the laminar object can keep dry.

A chip for analyzing fluid being moved without an outside power source includes: a pre-treatment portion into which fluid of a target-being analyzed substance is injected and mixed with an identification substance; a channel portion in which a specific reaction of the fluid such as an antigen-antibody reaction is conducted; and a washing portion into which the fluid is received. The pre-treatment portion includes: a specimen injection portion into which the fluid is injected; a first buffer portion protruding upwardly with respect to the specimen injection portion connected thereto to have a height greater than that of the specimen injection portion relative to the channel portion, such that the fluid is firstly received in the first buffer portion; and at least one specimen leading guide which destroys surface tension of the fluid flow moving from the specimen injection portion to the first buffer portion.

The invention discloses a system and a method for multistation cooperation preparation of flexible electronics. The system comprises a rotating disc module, and a substrate loading and unloading module, a base electro-spraying module, a bottom-layer insulating layer 3D print module, an electrospinning module, a top-layer insulating layer 3D print module, a laser peeling module and a material fetching module, which are distributed at the periphery of the rotating disc module, wherein the rotating disc module is used for fixing substrates and converting stations; the substrate loading and unloading module is used for picking and transferring substrates; the base electro-spraying module is used for preparing bases; the bottom-layer and top-layer insulating layer 3D print modules are separately used for printing bottom-layer and top-layer insulating layers; the electrospinning module is used for spinning circuits; the laser peeling module is used for ablating bases and automatically separating substrates from flexible electronics; and the material fetching module is used for fetching separated flexible electronics from substrates. The method utilizes the system to carry out the multistation cooperation preparation of flexible electronics. The whole set of system can be cyclically used, and is high in production efficiency, low in cost and high in precision.