Class / Patent application number | Description | Number of patent applications / Date published |
264102000 | To degas or prevent gas entrapment | 26 |
20080211129 | High volume vaccume/vent block for molding and casting systems - A gas purging block for use with injection molding and die casting systems comprises a stationary-side block for connecting to a stationary mold or die half, and a movable-side block for connecting to a movable mold or die half. The stationary-side block comprises a recessed cooling face having a first smooth contour extending between a first side and a second side of the stationary-side block to increase the surface area of the recessed cooling face. The movable-side block comprises a protruding cooling face having a second smooth contour extending between a first side and a second side of the movable-side block to increase the surface area of the protruding cooling face. | 09-04-2008 |
20080211130 | METHOD OF MAKING A NATURAL RUBBER VACUUM BAG BY SPRAY PROCESSES, NATURAL RUBBER VACUUM BAG MADE USING SPRAY PROCESS, AND METHOD FOR USING NATURAL RUBBER BAG MADE USING SPRAY PROCESS - Disclosed is a method for making a membrane for use as a vacuum bag, a natural rubber vacuum bag made using such methods, and methods for using such a natural rubber bag to form a composite article. One method can include providing a substantially non-porous working surface having a desired shape for forming a vacuum bag, spraying at least one layer of a natural rubber liquid over at least a portion of working surface, and solidifying the natural rubber liquid to form a membrane having a shape substantially corresponding to that of the working surface. The membrane formed being elastically deformable and substantially impermeable for functioning as a vacuum bag in Vacuum Assisted Resin Transfer Molding, debulking, compaction, or similar processes. | 09-04-2008 |
20080265455 | Injection Molding Process for Making Laboratory Test-Tubes and Mold to Be Used in the Molding Process Thereof - Plastic material is injected into a chamber defined between a female mold member and a male mold member, while air is evacuated from the chamber. In the evacuation step, the air contained in the forming chamber progressively exits from the mold under the pressure of the melted plastic material through a multiplicity of slits made on the female element at different heights along the above-mentioned central axis. The slits have dimensions such as to allow the passage of the air and at the same time to block the flow of the melted plastic material from the forming chamber. | 10-30-2008 |
20080284053 | PROCESS AND MOLD FOR CREATING A SKIN SUPPLIED WITH AT LEAST ONE ITEM - A method of forming a covering for a motor vehicle interior is disclosed, wherein a skin is disposed in a mold between a male part and a female part having an item disposed thereon and a vacuum is created in the mold to form the skin against the item. | 11-20-2008 |
20080296795 | Process to create decorative pattern in engineered stone - A pattern is created in an engineered stone by creating a void in an initial mineral particle/binder composition prior to curing and solidification of the binder. The void is filled with a separate mineral/binder composition and cured at the same time as the initial composition. | 12-04-2008 |
20080308960 | VACUUM BAG WITH INTEGRAL FLUID TRANSFER CONDUITS AND SEALS FOR RESIN TRANSFER AND OTHER PROCESSES - Disclosed are fluid transfer and evacuation structures formed in a vacuum bag operable for use in vacuum-assisted resin transfer molding, debulking, compaction, or similar processes. A reusable vacuum bag can be provided including an elastomeric membrane having a preform-contact surface and at least one textured surface formed in the elastomeric membrane. The textured surface can define a fluid transfer channel. At least one fluid extraction port can be provided in communication with the fluid transfer channel, the fluid extraction port being adapted for engagement to a vacuum pump to remove fluids from the fluid transfer channel. The textured surface defining the fluid transfer channel can be adapted to permit the flow of fluids between the elastomeric membrane and a base mold in communication with the elastomeric membrane when the fluid extraction port is engaged to a vacuum pump. | 12-18-2008 |
20090051070 | METHOD FOR PRODUCING INJECTION-MOLDED PARTS - In a method for producing injection-molded parts, PET material is processed and/or plasticized by means of a twin-screw extruder having a plurality of processing zones. At least two processing zones are implemented as degassing zones. The processed and/or plasticized material is transferred to a transfer reservoir and then further processed by a piston unit. | 02-26-2009 |
20090140448 | DEFOAMING METHOD, DEFOAMING DEVICE AND MANUFACTURING METHOD OF TRANSFER MOLD - A defoaming method for removing air bubbles from a curable resin material and a contact portion of the resin material with an irregular structure of a flat metallic mold. The mold includes a fine structural region having a fine irregular structure and a flat region in the periphery of the fine structural region. The curable resin material is applied to the irregular structure of the fine structural region, filling the irregular structure with the resin material. | 06-04-2009 |
20100193988 | DEGASSING EXTRUDER FOR DEGASSING A POLYMER MATERIAL AND METHOD FOR DEGASSING A SYRUP CONSISTING OF POLYMERS, SOLVENTS AND/OR MONOMERS USING A DEGASSING EXTRUDER - The invention relates to a vented extruder ( | 08-05-2010 |
20110012282 | COMPOSITE CONSTRUCTION MEMBERS AND METHOD OF MAKING - A method of forming a hollow composite construction member of the type suitable for use as building material includes providing an elongated inflatable mold assembly having a longitudinal axis. The mold assembly further has a flexible, substantially tubular bladder wall defining an elongated inflatable cavity, wherein the cavity is movable between a deflated condition, an inflated condition, and a plurality of partially inflated conditions. A reinforcing fabric is positioned concentrically around the flexible bladder wall. A flexible air-impervious outer layer is positioned concentrically around the fabric, with the bladder wall and the outer layer defining an elongated annular space. The fabric is positioned within the space. An intermediate member is inserted within the elongated annular space between the reinforcing fabric and the tubular bladder. A fluid is introduced into the cavity to at least partially inflate the mold and shape the fabric. The mold assembly is bent along the longitudinal axis to a curved shape. The elongated annular space is infused with a rigidification material such that the fabric is permeated with the rigidification material. The rigidification material is hardened to form a rigid hollow composite construction member. | 01-20-2011 |
20110037191 | Method and Arrangement to Produce a Wind-Turbine-Blade - A method and arrangement to produce a wind-turbine-blade are disclosed. A bottom layer is laid down into a forming tool. The bottom layer is used as a base of a pile. A predefined number of additional layers is stacked vertically on top of the basis to form the pile, while the pile is used as a separate module for the production of the blade. The bottom layer is made of a nearly airtight material, to prevent that surrounding air is allowed to flow vertically through the pile. An extraction of air is applied by a machine to a topmost layer of the pile in a way that the pile is sucked towards the machine. This allows to lift up the pile and to bring it into a mould for the further production of the blade. | 02-17-2011 |
20120119406 | APPARATUS AND METHOD FOR MANUFACTURING ABRASIVE TOOLS - A compression molding apparatus and method for the manufacture of abrasive layers for abrasive tooling which provides a compression mold space defined between an inflexible wall surface and a flexible wall surface. The apparatus and method of the present invention is particularly well suited to making annular or hollow cylindrical shaped abrasive layers of novel configurations during a single mold cycle useful for grinding wheel and the like, as well as other shapes such as laps, wherein the flexible wall expanded with fluid pressure provides a highly uniform distribution of pressure against the surface of the mold composition being formed. In an annular configuration, the flexible wall is used to radially direct pressure against a molding composition disposed in an annular configuration wherein the axial length of the annular mold shape formed may be many times greater than priorly obtained by the prior art means. | 05-17-2012 |
20120139147 | APPARATUS AND PROCESS FOR DE-AIRING MATERIAL IN AN EXTRUDER - An extruder for feeding material and for removing gas from the fed material. The extruder includes a vent block positioned between a first and second auger. The vent block including a vent cavity having a feed end and an exit end, an inner feed ring that partially extends into said vent cavity at the feed end of the vent cavity, and a screw element rotatably positioned in the vent cavity. A front portion of the outer ring is longitudinally aligned with or overlapping the front end of the inner feed ring. The outer ring forms at least one gap or opening at or adjacent the feed end of the vent cavity to enable gas to flow out of the vent cavity as material is moved though the vent cavity from the feed end to the exit end by the screw element. | 06-07-2012 |
20120292804 | Apparatus and methods for forming polymeric devices - This invention relates to an apparatus and methods for forming polymeric devices, especially fluidic or microfluidic devices used as conduits for controlling fluid flow. Such devices have important applications in chemistry and biology including immunoassays, enzyme assays and cell separation processes. The invention claims the use of fixed-temperature heating of thermoplastic resin in combination with vacuum and low pressure on the tool in order to rapidly produce good quality devices. The combination of features claimed in the invention is important because it enables simple, lightweight, economical equipment to be constructed to fabricate useful polymeric devices. | 11-22-2012 |
20130026671 | DEVICE AND METHOD FOR MANUFACTURING STATOR OF ULTRA HIGH SPEED INDUCTION MOTOR - An apparatus and method for fabricating a stator of a super-high-speed induction motor, in which the process of loading a stator on which a coil is completely wound into a mold, injecting a functional resin into a chamber, converting the inside of the chamber into the vacuum state, and pressurizing the inside of the chamber is carried out so that bubbles are removed from the inside and the surface of the functional resin and the functional resin is completely filled between the inner circumference of the stator and the inner circumference of the mold, thereby maximizing heat conductivity and insulation, preventing the stator from deteriorating, and improving the performance and endurance of the super-high-speed induction motor. In addition, since the vacuum step and the pressurizing step include heating the mold, in the vacuum step, the viscosity of the functional resin can be decreased so that the process of removing gas inside the stator can be efficiently performed and the solidification time of the functional resin can be decreased so that the working time can be decreased, and in the pressurizing step, the molding that is under pressing force is completely solidified. Furthermore, the height of the receiving section of the mold and the height of the central shaft are adjusted so that the winding section of the stator is completely immersed, and the chamber is provided with a vacuum tube and a pressurizing tube in order to facilitate the step of injecting the functional resin and the pressuring step. The method includes (a) loading a stator having a coil, which is completely wound on a core, into a mold, (b) injecting a functional resin into the mold so that a winding section of the stator is immersed, (c) inserting the mold, into which the functional resin is injected, into a closed chamber, (d) removing bubbles by converting the inside of the chamber into a vacuum state through a vacuum tube, which is provided in the chamber, so that the functional resin is filled across the entire portions of the stator, including the core and the coil, and between the inner circumference of the stator and the inner circumference of the mold, and (e) removing bubbles by increasing the gas pressure inside the chamber through a pressurizing tube, which is provided in the chamber, so that the functional resin is filled across the entire portions of the stator, including the core and the coil, and between the inner circumference of the stator and the inner circumference of the mold. | 01-31-2013 |
20130049248 | Method of Producing Artificial Stones with Aluminum residues - The present disclosure uses aluminum residues to fabricate artificial stones. The aluminum residues are obtained from a recycle process of aluminum scrap. The aluminum residues is made into dross and baghouse dust as raw materials for the artificial stones. The artificial stones thus made are improved in characteristics of mechanical strength, hardness, abrasion resistance, flame resistance and anti-oxidation. Hence, the present disclosure reduces impacts to the nature; obtains derived products from recycled aluminum residues; increases commercial income; decreases cost for handling aluminum residues; and saves the use of aluminum oxide, aluminium hydroxide or silicon oxide on making artificial stones. The artificial stones thus made are fit to be used in fields of green material, green construction and green industry. | 02-28-2013 |
20130292868 | SOLVENT-CAST MICROPROTRUSION ARRAYS CONTAINING ACTIVE INGREDIENT - In an aspect of the invention, an array of microprotrusions is formed by providing a mold with cavities corresponding to the negative of the microprotrusions, casting atop the mold a first solution comprising a biocompatible material and a solvent, removing the solvent, casting a second solution atop the first cast solution, removing the solvent from the second solution, and demolding the resulting array from the mold. The first solution preferably contains an active ingredient. | 11-07-2013 |
20130320581 | SYSTEMS AND METHODS FOR MANUFACTURING BULKED CONTINUOUS FILAMENT - A method of manufacturing bulked continuous carpet filament which, in various embodiments, comprises: (A) grinding recycled PET bottles into a group of flakes; (B) washing the flakes; (C) identifying and removing impurities, including impure flakes, from the group of flakes; (D) passing the group of flakes through an MRS extruder while maintaining the pressure within the MRS portion of the MRS extruder below about 1.5 millibars; (E) passing the resulting polymer melt through at least one filter having a micron rating of less than about 50 microns; and (F) forming the recycled polymer into bulked continuous carpet filament that consists essentially of recycled PET. | 12-05-2013 |
20140054815 | EXTRUDER FOR PROCESSING HYDROCARBON-CONTAINING MATERIALS - An extruder for processing hydrocarbon-containing material. The extruder includes a screw that is rotatably positioned in a barrel liner and a heating system positioned about at least a portion of the barrel liner that is designed to heat the hydrocarbon-containing material as the hydrocarbon-containing material moves through the barrel liner. | 02-27-2014 |
20140191434 | VACUUM BAG WITH INTEGRAL FLUID TRANSFER CONDUITS AND SEALS FOR RESIN TRANSFER AND OTHER PROCESSES - Disclosed are fluid transfer and evacuation structures formed in a vacuum bag operable for use in vacuum-assisted resin transfer molding, debulking, compaction, or similar processes. A reusable vacuum bag can be provided including an elastomeric membrane having a preform-contact surface and at least one textured surface formed in the elastomeric membrane. The textured surface can define a fluid transfer channel. At least one fluid extraction port can be provided in communication with the fluid transfer channel, the fluid extraction port being adapted for engagement to a vacuum pump to remove fluids from the fluid transfer channel. The textured surface defining the fluid transfer channel can be adapted to permit the flow of fluids between the elastomeric membrane and a base mold in communication with the elastomeric membrane when the fluid extraction port is engaged to a vacuum pump. | 07-10-2014 |
20140264997 | Automated Forming Of Cast Polyurethane - Cast polyurethane parts for shoes or other items may be formed in an automated fashion. A dispensing mechanism may dispense a predetermined amount of a liquid phase polyurethane mixture onto a flat surface face of a mold. A dispersal mechanism may distribute the liquid phase polyurethane mixture over the flat surface face of the mold to fill at least one cavity in the form. A vacuum may be applied to remove air bubbles from the liquid phase polyurethane mixture. Excess liquid phase polyurethane mixture may be removed from the flat surface face of the mold using a flexible blade that contacts and moves across the flat surface face. One or more conveyance mechanism may transport molds through the desired stages of a system and/or method in accordance with the present invention. | 09-18-2014 |
20140291881 | WAFER LEVEL TRANSFER MOLDING AND APPARATUS FOR PERFORMING THE SAME - A method includes placing a package structure into a mold chase, with top surfaces of device dies in the package structure contacting a release film in the mold chase. A molding compound is injected into an inner space of the mold chase through an injection port, with the injection port on a side of the mold chase. During the injection of the molding compound, a venting step is performed through a first venting port and a second venting port of the mold chase. The first venting port has a first flow rate, and the second port has a second flow rate different from the first flow rate. | 10-02-2014 |
20140300023 | METHOD FOR COATING A MOLDED PART - In a method for coating a molded part ( | 10-09-2014 |
20140306368 | Method for Producing a Semiconductor Using a Vacuum Furnace - A method of manufacturing a semiconductor includes providing a mold defining a planar capillary space; placing a measure of precursor in fluid communication with the capillary space; creating a vacuum around the mold and within the planar capillary space; melting the precursor; allowing the melted precursor to flow into the capillary space; and cooling the melted precursor within the mold such that the precursor forms a semiconductor, the operations of melting the precursor, allowing the precursor to flow into the capillary space, and cooling the melted precursor occurring in the vacuum. | 10-16-2014 |
20140319719 | MOULDING DEVICE AND PRODUCTION PROCESS - A production process includes introducing the material to be moulded into a mould, placing the mould in an envelope comprising a vacuum port; creating a low pressure in the envelope by formation of a gas flow through the vacuum port; deforming the mould; stopping the gas flow; and applying pressure on at least a portion of the mould, optionally with interposition of the envelope, at least after the gas flow is stopped. | 10-30-2014 |
20180022000 | METHODS AND APPARATUS FOR INJECTION AND MANUFACTURE OF MOLDED COMPONENTS WITH VACUUM ASSIST | 01-25-2018 |