36results about How to "Good floatation" patented technology

The present invention relates to an oral drug delivery system with biphasic release characteristics comprising a porous matrix comprising at least one drug substance, sugar(s), a release retarding polymer, gas generating components and optionally, pharma-ceuti-cally acceptable auxiliary components wherein the pharmaceutical composition further comprises a coating of said drug substance. The pharmaceutical composi-tion, either in the form of pellets (multiparticulate or single unit dosage form), beads, granules, capsules or tablets, is retained in the stomach while selectively delivering the drug(s) at gastrointestinal levels and upper parts of the small intestine over an extended period of time. The release of the drug from the said pharmaceutical composition is characterized by a biphasic release profile of the drug substance, which exhibits both immediate and controlled release characteristics.

The invention discloses a preparation method of compound algicide with a high alga removal rate and belongs to the technical field of algicide. According to the preparation method disclosed by the invention, coal ash and expanded graphite are mixed to serve as a carrier, saccharose is utilized as an outer coated carbon layer precursor, and the carrier and the saccharose are prepared into visible-light catalytic active compound algicide with visible-light catalytic activity is prepared through chitosan adsorption and copper ion coating; the compound algicide is in a worm shape and has good floatability, and an the alga removal rate of the algicide is improved; under irradiation of light, alga can generate oxygen on the surface through photosynthesis, the alga is accelerated to die, a descent rate of a chlorophyll content of the alga is quickened continuously, the alga is accelerated to die, and the alga removal rate of the algicide is improved againfurther; the chitosan and the coal both have better flocculation capacity and adsorption capacity, and the chitosan can generate amino groups with positive charge after reacting with hydrochloric acid; when the amino groups are more, an acid solution and magnetite powder are utilized to jointly modify the coal ash and the expanded graphite; thus, the alga removal rate of the algicide is further improved; the algicide has a wide application prospect.

Rubbers-gun for underwater fishing, comprising a shaft provided at the front with a head and at the rear with a body with a grip and provided with means for retaining and releasing a spear in which the shaft of the gun is made of polyamide reinforced with glass fibres by means of a gas injection moulding process. The cross-section profile of the shaft of the gun is rhomboid, tapered from the centre towards the two ends. The gun also comprises a reel connected to the said body by means that permit an initial positioning of it horizontally to the said shaft, therefore with the axis of rotation substantially perpendicular to the shaft, and a second positioning inclined at a certain angle compared with the said shaft.

A snowmobile ski includes a bridge adapted to connect to a ski leg of a snowmobile, a ski body having an inner lateral edge, an outer lateral edge, a top surface adapted to be connected the bridge, and a bottom surface adapted for moving over snow, a keel running lengthwise along the bottom surface of the ski body in such a manner that a centerline of the keel is offset from a centerline of the bridge in a direction toward the outer lateral edge of the ski body, and a runner connected to the keel.

The invention discloses a preparation method for a floating type powdery aluminum pigment. The preparation method includes the step of solvent displacement, wherein a solvent is used for cleaning floating type aluminum silver paste; the step of primary filter pressing, wherein filter pressing is conducted on the floating type aluminum silver paste obtained in the solvent displacement step to obtain a first filter cake; the step of liquid phase dispersion, wherein a solvent is adopted for dispersing the first filter cake to obtain an aluminum sheet suspension; the step of surface treatment, wherein aluminum sheets in the aluminum sheet suspension are coated with surface treating agents. The preparation method has the advantages that the preparation process is simple, consumed time is short, repeatability is high and the stability of the obtained floating type powdery aluminum pigment is high. The floating type powdery aluminum pigment obtained through the method has a remarkable mirror plane effect, is good in dispersing performance and also has good floating performance.

The invention discloses a sustained-release and controlled-release balloon floating system, which can ensure that the drug can float at the top layer of the stomach contents after entering body and can not enter into small intestine along with the evacuation of foods, so as to improve the drug efficacy. The invention includes a balloon which can provide buoyancy to allow the system to be floated at liquid surface and a sustained/controlled-release preparation containing pharmacological active substances. The system includes three parts: a balloon shell I, gas II and the sustained-release and controlled-release preparation III containing drugs, wherein the gas II occupies one end of the balloon shell I, and the other end is occupied by the sustained-release and controlled-release preparation III, and the two are or are not separated by a partition board/diaphragm IV. The floating preparation which is prepared by the method of the invention can respectively and independently regulate the controlled-release time and the floating time during the prescription and process designs, and when the characteristics of one part of the two parts change, the characteristics of the other part do not be affected, thus, the exploration processes of the prescription and process can be greatly simplified.

An inflatable hot tub kit that includes a self-supporting tub structure that can be used on ground or used in a body of water. The kit includes a thermostat and hoses designed to connect to an external fresh water supply system. The tub structure comprises three inflatable ring sections that form the sidewalls designed to hold warm or hot water. The upper ring section is octagonal-shaped when viewed in a plan view. In cross-section, the upper ring section is circular and relatively large so that when the tub structure is placed in a body of water, the water edge is approximately 8 to 10 inches below the top surface of the upper section. The middle ring section is flat in cross-section and vertically aligned under the center axis of the upper ring section. The middle ring section provides buoyancy and supports the upper ring section when used on the ground or extends into the body of water to provide buoyancy. Attached to the middle ring section is an inflatable lower ring section. Attached to the lower ring section is a flat, insulated, flexible floor panel. Suitable air inlet/outlet port and a tub-through drain are also provided.

The invention relates to an overwater overflow-oil recovery device in a rotatable roller boom form. The device is made of lightweight materials and comprises a roller and oil absorption elements, wherein the roller comprises a stand column (1) fixedly or detachably arranged on the middle of a roller bottom (7), a plurality of wall bodies (2) fixedly or detachably arranged on the circumference of the roller bottom (7), and covers (6) detachably covering the stand column (1) and the wall bodies (2); a shaft hole (12) is formed in the stand column (1); a flexible shaft or a cable penetrates through the shaft hole; the roller bottom (7) and the covers (6) are provided with through holes corresponding to the shaft hole (12); the adjacent wall bodies (2) are connected through a grid-shaped arc pore plate (3); each wall body (2) and the stand column (1) are connected through a grid-shaped plane partition plate (4); the roller is internally divided into a plurality of divided spaces; the oil absorption elements are disposed in each divided space; and the oil absorption elements can freely rotate in the corresponding divided space.

The invention discloses an anemometry tower provided with a laser anemometer, which comprises a foundation of the anemometry tower. The foundation is provided with a bottom plate, side plates are connected on the peripheral walls of the bottom plate, the bottom plate and the side plates are connected to form a box type structure, a plurality of longitudinal supporting rods in the perpendicular and horizontal direction are mounted on the bottom plate, inclined supporting rods are connected among the longitudinal supporting rods, a tower body is mounted at the center of the bottom plate, an adjustable platform is mounted on the upper portion of the tower body and provided with a platform plate, a lead screw is mounted on the platform plate, one end of the lead screw is connected with the tower body, a main inclined supporting rod is mounted among the tower body and the side plates at least, positioning piles are mounted on the periphery of the bottom plate and are connected with one ends of the main inclined supporting rods, and the other ends of the main inclined supporting rods are connected with the tower body. The laser anemometer can be mounted on the anemometry tower, the anemometry tower is short in manufacturing cycle and low in manufacturing cost and is fine in stability after being positioned and sunk, the platform of the anemometry tower can be adjusted horizontally, the laser anemometer can be stably mounted on the platform of the anemometry tower, and acquisition of accurate data of anemometry can be guaranteed.

The invention discloses a novel life vest which comprises a life vest main body, a vest body and a sponge floating block, wherein the vest body is fixedly connected to the middle part of the life vestmain body, the sponge floating block is in embedded connection into the life vest main body, light reflection type pull belts are movably connected to the left side and the right side of the back ofthe life vest main body, and telescopic fixed belts are tightly sewed to the top, the middle part and the bottom of the vest body. The novel life vest can be shrinked and expanded according to the body shape of a user, so that the vest body can be attached to the body of the user; a remote connection device is matched with a water level pressure alarm to be used, so that a remote alarm effect is achieved; a light reflection type pull ring can provide a fixed rescue point for a rescuer; a second zipper brings convenience to the user to replace the sponge floating block and the vest body at regular intervals, so that resources are saved; a life saving whistle can be blown to attract attention of surrounding people, so that the user can be saved; the life saving whistle is sewed to a collar through a fixing module, so that use stability of the life saving whistle is improved.

The invention discloses a solar power generation device provided with a floating foam cement board. The floating type solar power generation device comprises a solar photovoltaic panel, a mounting plate, a fixing plate, a mounting support, a fixing frame, the floating foam cement board, steel cable lifting ropes, stabilizing reinforced concrete blocks, lifting rings, floating stabilizing barrels and hydraulic cylinders, wherein the solar photovoltaic panel is mounted on the mounting plate through fixing buckles, the mounting plate is mounted on the fixing plate, the mounting support is connected onto the hydraulic cylinders, the hydraulic cylinders are fixedly mounted on the fixing frame filled with the floating foam cement board, the lifting rings are connected with the stabilizing reinforced concrete blocks through the steel cable lifting ropes and mounted at four corners of the bottom end of the fixing frame, the floating stabilizing barrels are mounted on side surfaces of the fixing frame, and foam cement belongs to a closed-pore honeycomb-like inorganic thermal insulation material. The solar power generation device is characterized in that a large number of closed pores are formed in cement, so that the cement material is light, the honeycomb-like structure has certain strength and good floatability, the solar power generation device is mounted on the fixing frame floating in water, and the land area occupied by a power station is saved.

The invention provides a labor-saving ice-breaking device for fishing in winter. A handle is welded to the right side of the top end of a rod column, a grasp ring is adhered to the outer wall of the top end of the rod column, an upper ice edge is welded to the top end of the right side of the rod column, a top edge is integrally arranged on the top of the upper ice edge, a side edge is integrallyarranged on the right side of the upper ice edge, a cone body is welded to the bottom end of the upper ice edge, a lower ice edge is welded to the middle of the right side of the rod column, accommodating rooms are embedded into the front and back sides of the bottom end of the rod column, a floating pad is movably connected to the top end of each accommodating room through a rotary shaft, an inflating room is embedded onto the back side of the floating pad, an inflating port is embedded into the top end of the back side of the inflating room, movable rooms are embedded onto the left and rightsides of the bottom end of the rod column, a plywood is movably connected to the middle of each movable room through a movable shaft, a pull rod is welded to the bottom end of the plywood, a bottom cone is welded to the bottom end of the rod column through a connecting rod, and a buffer spring is embedded into the middle of the connecting rod. The whole device is stable in structure, convenient to use and operate, quick in ice-breaking speed, small in cracks of ice-broken ice faces and labor- and time-saving.

The invention belongs to the technical field of fiber preparation and discloses buoyancy ultrahigh molecular weight polyethylene fibers and a preparation method thereof. The method comprises the following steps of (1) preheating epoxy resin, heating to 60 -85 DEG C, maintaining for 20 -30 min, degassing for 1 h, adding a curing agent and stirring rapidly upon putting in, and degassing again; and adding hollow glass microbeads while stirring, uniformly mixing, and standing; (2) stirring a silane solution and adding the solution into the step (1), rapidly stirring the mixture for 50 -65 min, anddrying for 2.5 -3.2 hours at 80 -100 DEG C to obtain activated hollow glass microbeads; (3) mixing the hollow glass microbeads with an ultrahigh molecular weight polyethylene solution, stirring and heating to 30 -70 DEG C, maintaining the temperature for 1 -1.2 hours and then forming spinning fluid; and (4) injecting the spinning fluid into a double-screw extruder from a feeding kettle to obtainjelly precursor yarns, and preparing the buoyancy ultrahigh molecular weight polyethylene fibers through extraction and multi-multiple stretching. The ultrahigh molecular weight polyethylene fibers prepared by the method in the invention have the advantages of stable structure, good performance, light weight and good floating performance.

The invention relates to a plastic anchor floater and belongs to the technical field of machinery manufacturing. A steel shell of the anchor floater is changed into a plastic shell; a foaming body is arranged in the shell; a steel pipe is arranged in the center of the anchor floater; the steel pipe is connected with a clamping plate at the bottom of the anchor floater through a nut and a flat cushion; a gland is arranged at the top of the anchor floater; and a plurality of lifting rings are arranged on the gland. The plastic anchor floater improves impact resistance and corrosion resistance, prolongs the service life and has light weight and high floating performance.

The invention discloses a high-oil-absorption polypropylene material, which is prepared from the following raw materials in parts by weight: 85 to 100 parts of polypropylene; 2-10 parts of a nucleating aid; 1-10 parts of a phenyl-containing compound; 0.5-25 parts of a foaming agent; 1-5 parts of an oleophylic additive. According to the high-oil-absorption polypropylene material, the specific nucleating aid is adopted so that the prepared product is greatly reduced in ash content, and convenient to recover and dispose; the material is extremely low in density, capable of keeping excellent floatability on the water surface, high in oil absorption rate, good in mechanical property, good in stability, capable of being repeatedly used, capable of still keeping high oil absorption rate after absorbing oil for multiple times and suitable for being widely popularized on the market.