Patent application number | Description | Published |
20090159617 | Hot Melt Adhesive Metering Pump Assembly with Integral Reservoir Tank - A hot melt adhesive metering pump assembly, and an integral reservoir tank fluidically connected thereto and the hot melt adhesive metering pump assembly comprises a plurality of rotary, gear-type metering pumps which are arranged in a compact, longitudinally spaced manner upon a drive gear manifold. All of the driven gears of pumps are respectively driven by manifold pump drive gears which are rotatably mounted upon a common motor-driven rotary drive shaft rotatably disposed within the drive gear manifold, and a first side wall member of a base portion of the reservoir tank is integrally connected to a side wall portion of the drive gear manifold, while a second side wall member of the base portion of the reservoir tank is provided with a plurality of hose connections to which hot melt adhesive delivery hoses are to be connected so as to respectively convey the precisely metered amounts of the hot melt adhesive material toward the applicator heads. | 06-25-2009 |
20090214372 | Remote Hot Melt Adhesive Metering Station - A new and improved remote, hot melt adhesive metering station ( | 08-27-2009 |
20090266844 | Hot melt adhesive metering system with interchangeable output assemblies - A hot melt adhesive or other thermoplastic material metering system has different output assemblies interchangeably mounted thereon in a modular manner. In this manner, if it is desired to effectively convert a particular metering system from one type of metering system to another type of metering system, a particular output assembly can be exchanged for a different output assembly. In addition, if a particular output assembly needs to be replaced or repaired, the particular output assembly can be simply removed and a new similar output assembly can be simply installed. | 10-29-2009 |
20110014369 | Metering system for hot melt adhesives with variable adhesive volumes - A new and improved hot melt adhesive material dispensing system comprises two separate and independent rotary, gear-type metering pumps, or two separate and independent sets of rotary, gear-type metering pumps, which are able to output precisely metered amounts of hot melt adhesive material. The hot melt adhesive materials discharged from the two separate and independent rotary gear pumps, or from the two separate and independent sets of rotary gear pumps, are able to in fact be independently outputted through suitable output devices onto a particular substrate so as to result in different outputted volumes of the hot melt adhesive material in accordance with predeterminedly desired patterns, or at predeterminedly desired locations. Alternatively, the hot melt adhesive material from the two separate and independent rotary gear pumps, or from the two separate and independent sets of rotary gear pumps, may also have their volumetric outputs effectively combined such that the discharged or outputted volumes of the hot melt adhesive material onto the substrate may effectively be, for example, twice the outputted volumes of the hot melt adhesive or other thermoplastic material outputted onto the substrate from only one of the two separate and independent rotary gear pumps, or from only one of the two separate and independent sets of rotary gear pumps. | 01-20-2011 |
20110014430 | METERING SYSTEM FOR HOT MELT ADHESIVES WITH VARIABLE ADHESIVE VOLUMES - A method of making an article having a substrate and a material applied thereto includes providing a metered fluid dispensing system having a supply of fluid to be dispensed, an output device having at least one dispensing nozzle, at least two pumps for pumping fluid from the supply to the at least one dispensing nozzle. The pumps are in close proximity to the dispensing nozzle. Output supply passageways interconnect the pumps and the dispensing nozzle, and flow control elements selectively control the passage of the fluid from the pumps to the nozzle. The substrate is conveyed past the fluid dispensing system in a machine direction and fluid is applied to the substrate in a plurality of segments. Each segment has a volume per unit length and is applied in a length in the machine direction to define a pattern. The pattern includes at least some areas in which the fluid is present at a first volume as applied from one of the pumps and at least some areas in which fluid is present at a second volume that is greater than the first volume, as applied from both of the pumps. | 01-20-2011 |
20110052811 | Metering system for simultaneously dispensing two different adhensives from a single metering device or applicator onto a common substrate - A new and improved hot melt adhesive or other thermoplastic material dispensing system comprises two separate and independent rotary gear-type metering pumps with two separate and independent supply sources and fluid supply passageways, or two separate and independent sets of rotary gear-type metering pumps with two separate and independent supply sources and fluid supply passageways, which are able to independently output precisely metered amounts of the hot melt adhesive materials simultaneously onto a particularly substrate through suitable output devices so as to result in a multitude of different hot melt adhesive patterns and at different locations. | 03-03-2011 |
20110052812 | METERING SYSTEM FOR SIMULTANEOUSLY DISPENSING TWO DIFFERENT ADHESIVES FROM A SINGLE METERING DEVICE OR APPLICATOR ONTO A COMMON SUBSTRATE - A method of making an article having a substrate and two materials applied thereto includes providing a metered fluid dispensing system having first and second supply sources for supplying first and second fluids, respectively, an output device having at least one dispensing nozzle, and at least two pumps for pumping the first and second fluids from their respective supply sources to the at least one dispensing nozzle, the pumps being in close proximity to the dispensing nozzle. The dispensing system is configured to selectively control the passage of the first and second fluids from each one of the at least two pumps to the at least one dispensing nozzle. The substrate is conveyed past the fluid dispensing system in a machine direction and the first, or second, or first and second fluids are applied to the substrate in a plurality of segments, each segment having a volume per unit length and applied in a length in the machine direction to define a pattern, and in which wherein the pattern includes at least some areas in which the first or second fluid is present without the other fluid. | 03-03-2011 |
20110286872 | Metering gear pump or segment, and metering gear pump assembly comprising a plurality of metering gear pumps or segments - A metering pump or segment, and a metering pump assembly comprising a plurality of the metering pumps or segments, are disclosed. The drive shaft assembly for driving the pump gears of each metering pump or segment is coaxially aligned with the longitudinal axis of the pump or segment, as is the fluid inlet supply path, whereby only three gears are required to comprise each metering pump or segment. The single drive shaft assembly is utilized to drive all of the metering pumps or segments comprising the metering pump assembly, and the different metering pumps or segments are fluidically connected together by means of a common fluid passageway. In addition, the different metering pumps or segments can be interchanged or exchanged so as to permit different metered fluid output volumes to be outputted at different predetermined locations. Also, different metering pumps or segments can be disposed or arranged such that their metered flow output volumes can effectively be added together so as to achieve additionally desired metered fluid output volumes which are different from that achieved from any single one metering pump or segment. | 11-24-2011 |
20130048900 | HYDRAULIC SEAL ASSEMBLY FOR A THERMOPLASTIC MATERIAL DISPENSING VALVE ASSEMBLY - A seal assembly, for use within a hot melt adhesive or other thermoplastic material dispensing valve assembly, comprises a sealing cartridge comprising a first primary seal, a secondary seal, and a viscous incompressible silicone grease disposed internally within the sealing cartridge. The viscous silicone grease effectively distributes the pressure forces such that internal pressure forces within the silicone grease are substantially equal to the external pressure forces of the hot melt adhesive whereby a pressure differential across the primary seal member is effectively eliminated thereby effectively eliminating the tendency for leakage of the hot melt adhesive or other thermoplastic materials. | 02-28-2013 |
20140034682 | METERING SYSTEM FOR HOT MELT ADHESIVES WITH VARIABLE ADHESIVE VOLUMES - A hot melt adhesive material dispensing system comprises two separate and independent rotary, gear-type metering pumps, or two separate and independent sets of pumps, which are able to output precisely metered amounts of hot melt adhesive material. The hot melt adhesive materials discharged are able to be independently outputted through suitable output devices onto a substrate to result in different outputted volumes of the hot melt adhesive material in accordance with predeterminedly desired patterns, or at predeterminedly desired locations. The hot melt adhesive materials may also have their volumetric outputs combined such that the discharged or outputted volumes of the hot melt adhesive material onto the substrate may be, for example, twice the outputted volumes of the hot melt adhesive outputted onto the substrate from only one of the two pumps, or from only one of the two pumps. | 02-06-2014 |
20140093227 | FOAM HEAT EXCHANGER FOR HOT MELT ADHESIVE OR OTHER THERMOPLASTIC MATERIAL DISPENSING APPARATUS - A foam heat exchanger, for use in connection with hot melt adhesive or other thermoplastic material dispensing applicators, comprises a foam having an open cell reticulated foam structure. Due to the open cell reticulated structure of the foam, the surface area of the foam heat exchanger, with which the air comes into contact, is significantly increased. In addition, the open cell reticulated structure of the foam heat exchanger will also cause the air flow to experience resistance and turbulence so as to in turn enhance the heating efficiency of the heat exchanger, through means of enhanced thermal energy transfer from the heat exchanger to the processed air stream, whereby a significantly larger volume of air can be heated as compared to a conventional heat exchanger of similar size. | 04-03-2014 |
20140263750 | VARIABLE VOLUME HOT MELT ADHESIVE DISPENSING NOZZLE OR DIE ASSEMBLY WITH CHOKE SUPPRESSION - A dual, variable volume hot melt adhesive dispensing nozzle or die assembly is provided with a pair of choke slots within a first fluid control plate. The provision of the choke slots within the first fluid control plate effectively restricts and retards the flow of the fluid through such choke slots whereby volumes of the fluids are effectively built up and stored upstream of the choke slots so as to effectively delay the reaction of pressure spikes upon the fluid flows under both positive and negative conditions. This buildup in pressure and volume is then dispensed over time so as to cause the fluid flow to smoothly transition between positive and negative spiked fluid flow conditions and normal fluid flow conditions. Accordingly, the pressure spikes do not adversely affect the resulting fluid flows whereby, for example, under conventional negative pressure spike conditions, gaps in the dispensed hot melt adhesive would otherwise occur. | 09-18-2014 |