| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 164456000 | During foundry sand treating or mold making | 8 |
| 20090008058 | CASTING MATERIALS - A foam material comprises a liquid polymer and a liquid isocyanate which is mixed to make a solution that is poured, injected or otherwise deposited into a corresponding mold. A reaction from the mixture of the liquid polymer and liquid isocyanate inside the mold forms a thermally collapsible foam structure having a shape that corresponds to the inside surface configuration of the mold and a skin that is continuous and unbroken. Once the reaction is complete, the foam pattern is removed from the mold and may be used as a pattern in any number of conventional casting processes. | 01-08-2009 |
| 20090308564 | METHOD OF FORMING A PATTERN - A method of forming a pattern includes providing an actual core having dimensions which are different from dimensions of an ideal core. A best fit spatial relationship of the actual core to a spatial envelope for an ideal core is determined. Locating surfaces in a die are moved to positions, at least some of which are offset from ideal core locating positions, in which the actual core is positioned in a best fit spatial relationship with the spatial envelope for the ideal core. A plurality of motors may be utilized to move the core locating surfaces to desired locating positions. The actual core is positioned in engagement with the core locating surfaces and a flow of wax is conducted into the die. If desired, a best fit spatial relationship of the actual core to a die cavity may be determined, rather than a best fit with an ideal core. | 12-17-2009 |
| 20100078145 | APPARATUS AND METHOD FOR MONITORING AND EVALUATING GREENSAND MOLDS - A device for determining the integrity of a greensand mold comprising two or more measurement sensors or plates on a support or supports. The support may comprise a frame straddling a mold production line between the mold machine and the pour station. When the production line is stopped, the measurement sensors or plates are extended to contact opposing sides of a mold and determine electrical characteristics of the mold, including capacitance and inductance. By comparing the electrical characteristics of the mold to the electrical characteristics of recently tested molds in the production line, a determination can be made whether the mold should be used at the pour station. | 04-01-2010 |
| 20100181042 | METHOD FOR PROCESSING MOULDING SAND - The present invention concerns a method for processing moulding sand. | 07-22-2010 |
| 20110220316 | NON-VEINING URETHANE RESINS FOR FOUNDRY SAND CASTING - Described herein a method of manufacturing a metal shape that includes contacting a liquid metal and a surface of a foundry core under conditions wherein vein defects occur, the surface of the foundry core comprising a foundry aggregate, a combustible-organic material and a polyurethane resin, and the surface of the foundry core being free of or essentially free of an anti-veining agent; cooling the liquid metal to a temperature below its melting point thereby forming a metal shape; and then removing the foundry core from the metal shape. | 09-15-2011 |
| 20130118703 | Method for Making Upper and Lower Molds and an Apparatus Therefor - The purpose of this invention is to provide a method for making upper and lower molds and an apparatus therefor that can prevent the resulting molds from being warped and match-plates from being broken. | 05-16-2013 |
| 20140182805 | FLASKLESS MOLDING EQUIPMENT FOR MOLDING A MOLD - A flaskless molding equipment for molding a mold that provides support for quickly restoring the stopped equipment to a normal operation. The control circuit monitors the movements of the movable members, the cylinders, and the mechanisms for driving a cylinder, and if the period of the operation of each step of the flaskless molding equipment for molding a mold from the start of the operation to the point where the operation of the flaskless molding equipment for molding a mold reaches the predetermined position exceeds the predetermined period that is set to be abnormal, then the control circuit provides support for restoring the stopped equipment to a normal operation, following the instructions displayed on the screen and following the operator's input by means of an input switch. | 07-03-2014 |
| 20150144289 | CORE SAND FILLING METHOD - The core sand filling method comprises a step of operating an aeration air supply means, so as to float and fluidize core sand within a sand blow chamber and, when a pressure Pf of the sand blow chamber measured by the first pressure sensor reaches a first pressure, operating a compressed air supply means and a step of stopping the aeration air supply means and compressed air supply means from operating when each of the pressure Pf within the sand blow chamber and a pressure Pc within a sand storage chamber is a second pressure or higher while a differential pressure ΔP=Pc−Pf is a third pressure or lower. | 05-28-2015 |
