MILLER WELDMASTER CORPORATION Patent applications |
Patent application number | Title | Published |
20140374020 | METHOD AND APPARATUS FOR WELDING A CURVED SEAM - A system and method for welding flexible fabric is presented. A welding system for flexible fabric includes a welding machine with a roller and a user interface. The welding machine is adapted to weld a first fabric to a second fabric using a first heat. The roller on the welding machine can be used to roll at a first speed the first fabric and/and or the second fabric through the welding machine. Later, an operator of the welding machine through the user interface sends a single speed control signal to the welding machine. Response of the single speed control signal, the welding machine changes from the first heat to a second heat and also changes the speed of the roller from the first speed to a second speed. | 12-25-2014 |
20140307987 | BAG WITH THERMAL WELDED BACK SEAM - A bag having a thermal welded back seam is provided. The bag may be formed primarily of a thermoplastic material and may be in the form of a polywoven bag. | 10-16-2014 |
20140305587 | BACK SEAM WELDER AND METHOD OF OPERATION - A thermal welder is configured to weld a back seam of a bag formed of thermoplastic sheet material, which may be a polywoven material. The welder typically includes a weld heater and a compression mechanism downstream of the weld heater to compress the sheet material to form the back seam. The welder also includes a weld breaker downstream of the compression mechanism to break apart incidental welds which are formed adjacent the back seam. | 10-16-2014 |
20140305586 | HOT WEDGE WELDING MACHINE AND METHOD OF OPERATION - The invention relates to providing a hot wedge welding machine which may eliminate the thermal dampening that occurs to a welding element when the material to be welded is first introduced into the welding machine. The invention relates to cooling the welding element to stimulate a heating system to heat the welding element to the desired temperature. The artificial cooling stress provided by a cooling system is removed generally at the same time genuine cooling stress of the material is applied to the welding element. This results in the welding element maintaining a consistent temperature when the material is introduced into the welding machine. | 10-16-2014 |
20140124136 | DUAL ROLL FABRIC WELDING MACHINE AND METHOD OF OPERATION - A dual roll fabric welding or seaming machine is configured to seam pieces of sheet material to one another as the pieces move downstream. The machine includes modular gantries and various actor devices which may be readily mounted on any of the gantries to interact with the moving sheet material to achieve various functions, such as seaming pieces of sheet material together, forming hems, applying grommets to the sheet material, printing on the sheet material, connecting reinforcement strips or ropes to the sheet material and cutting the sheet material. | 05-08-2014 |
20140124127 | FOLDING SYSTEM - A system and method for welding edge seams at the edges of fabric is presented. A method begins by lowering a fabric pre-fold bar onto a piece of fabric. A pre-aligned portion of the fabric is pushed on top of the pre-fold bar so that the pre-fold bar is between the portion of fabric on top of the fabric pre-fold bar and other fabric below the pre-fold bar. The fabric on top of the fabric pre-fold bar is folded edge fabric and fabric not on top of the fabric pre-fold bar is not folded edge fabric. A folded edge is formed between these two sections of fabric. The method pinches some of the fabric at the folded end and then pulls the folded edge fabric off of the fabric pre-fold bar. After that, the method welds at least some of the folded edge fabric to the not folded edge fabric. | 05-08-2014 |
20140124125 | METHOD AND APPARATUS FOR CONTROLLING WELDING OF FLEXIBLE FABRICS - A machine and method for welding first and second fabric panels together. The machine includes a welding head which travels along a frame, applying heat and pressure to an overlapped region of the panels. An infrared camera is positioned to monitor the seam temperature after formation. The camera takes a thermal image across the width of the seam and transmits the data to a central processing unit (CPU). Programming in the CPU compares the thermal image data with a pre-programmed ideal temperature profile. Based on the comparison, the CPU makes adjustments to one or more of the speed of travel of the welding head, and the heat and pressure applied by the welding head, if necessary. The CPU activates an alarm to alert the machine operator if the adjustments aren't successful. The machine further includes a marking assembly for identifying regions on the welded seam which may require post-production testing. | 05-08-2014 |
20130104370 | BI-DIRECTIONAL SEAMING MACHINE AND METHOD OF SEAMING | 05-02-2013 |
20130098887 | PORTABLE HEAT WELDING MACHINE - A relatively small and lightweight portable plastic welding machine is suitable for use on a table top. The welding machine has stationary and traveling modes for welding one or more sheets of flexible plastic material. A single motor is provided for driving rotation of pinch rollers adjacent a welding tip and rotation of a drive wheel to cause travel of the machine. A clutch provides the ability to easily switch between the stationary and traveling modes. | 04-25-2013 |
20120312479 | FABRIC WELDING MACHINE - Methods and other embodiments associated with a fabric welding machine are presented. The fabric welding machine includes a base, a welding machine body, and a support beam with a first end and a second end. A first roller is positioned adjacent to the first end of the support beam opposite the welding machine body. A swing arm with a body end and a roller end is attached to the welding machine body. The roller end is opposite the welding machine body and is configured to move to a first position and a second position. A heat element attached to the first end of the support beam. | 12-13-2012 |
20120227363 | METHOD AND APPARATUS FOR TOP SEALING WOVEN BAGS - A system is provided for filling and sealing bags and is especially useful with woven polybags formed of thermoplastic material. The system includes a plastic welder having a folding device for folding over a portion of the filled bag which is sealed by a welding tip and pinch rollers. The welding tip may be moved between welding and non-welding positions based on a bag sensor or timer. A contact prevention member prevents the welding tip from contacting and damaging a coating on a portion of the bag. The system is configured to form a substantial seam without using hot melt adhesive. | 09-13-2012 |
20110220282 | METHOD OF USING A WELDING MACHINE INCORPORATING A VACUUM TRACK ASSEMBLY - A welding machine having a frame that includes end supports spanned by a top beam with a truncated V-shaped cross-section and a method of using the same. A vacuum track assembly disposed vertically beneath the top beam retains fabrics to be welded on a perforated surface using suction. A welding head travels along the top beam and applies heat and pressure to the surface to weld the fabrics together. The top beam and vacuum track assembly are extendable by including additional unit segments from which the beam and assembly are constructed. | 09-15-2011 |
20110219601 | BI-DIRECTIONAL SEAMING MACHINE AND METHOD OF SEAMING - A seaming machine and method are provided for seaming segments of sheet material to one another to form larger sheets. The machine typically includes a frame with a pair of spaced seaming devices mounted thereon for respectively seaming opposed edges of the segments of sheet material to one another. The process allows for the seaming of multiple sheet segments while the sheet segments remain atop a work surface. Relative back and forth movement between various components and the work surface typically facilitate the process. | 09-15-2011 |
20110083803 | FABRIC WELDING MACHINE - Methods and other embodiments associated with a fabric welding machine are presented. The fabric welding machine includes a base, a welding machine body, and a support beam with a first end and a second end. A first roller is positioned adjacent to the first end of the support beam opposite the welding machine body. A swing arm with a body end and a roller end is attached to the welding machine body. The roller end is opposite the welding machine body and is configured to move to a first position and a second position. A heat element attached to the first end of the support beam. | 04-14-2011 |
20110083787 | METHOD OF IMPULSE WELDING NON-WATERPROOF, DIGITALLY PRINTABLE FABRICS - A method of impulse welding a first and a second fabric panel together. The method includes positioning a sealing tape between the panels, applying heat and pressure to the same, followed immediately by applying cold and pressure to the same. The first and second fabric panels are fabrics that are non-waterproof and are either digitally printed or digitally printable. The sealing tape is a tape that melts into and bonds the fabric panels together. | 04-14-2011 |
20090320729 | Bi-directional seaming machine - A seaming machine for seaming segments of sheet material to one another to form larger sheets includes a frame defining a sheet-receiving area and a pair of spaced seaming devices on opposed sides of the sheet-receiving area for respectively seaming opposed edges of the segments of sheet material to one another. The frame typically defines a table-receiving space for a table to support the sheet segments. The machine provides for the seaming of multiple sheet segments while the sheet segments remain atop the table or another work surface. Relative back and forth movement between the frame and work surface facilitate the process. | 12-31-2009 |