Nordson Corporation

Edward C Taylor

Laurence B Saidman

William A Lewis

David J Dunlap

John Matthew Riney

John M Raterman

Justin A Clark

Charles P Ganzer

Leslie J Varga

John E Jackson

Sidney K Sooudi

A force amplifying driver system including an actuator with a powered actuating member mounted for movement along a first distance 'X'. A driven member mounted for movement along a second distance or working distance 'Y' which is less than the first distance &#x201c;X&#x201d;. The powered actuating member is movable through a gap &#x201c;Z&#x201d; before being mechanically coupled with the driven member and subsequently moves with the driven member along the second distance &#x201c;Y&#x201d;. Energy is transferred from the powered actuating member to the driven member along the second or working distance &#x201c;Y&#x201d;. The force amplifying driver system may be used for actuating a fluid jetting dispenser.

Force amplifying driver system, jetting dispenser, and method of dispensing fluid

An adhesive dispensing system and method of dispensing liquid material are disclosed. The adhesive dispensing system includes an adhesive dispensing module receiving hot melt adhesive through the inlet at a low pressure and rapidly developing high pressure at an outlet to thereby jet the hot melt adhesive therefrom. The system also includes a pressure container containing a supply of hot melt adhesive and configured to melt or maintain a heated temperature of the hot melt adhesive. A low pressure liquid passageway communicates between the adhesive dispensing module and the pressure container. The system also includes a pressurized air source in fluid communication with the adhesive dispensing module to operate the adhesive dispensing module by moving a piston to generate high pressure at the outlet of a nozzle for jetting hot melt adhesive as a discrete volume toward a substrate.

Jetting discrete volumes of high viscosity liquid

A dispenser for applying small amounts of liquid to a substrate. The dispenser includes a dispenser body, an actuator in the dispenser body, and a dispensing element including a dispensing element body removably coupled to the dispenser body. A valve stem is mounted for reciprocating movement within the dispensing element body. Additional aspects include a deformable valve seat, a deformable and resilient valve stem tip and a method of applying liquid in discrete amounts to a substrate.

Positive displacement dispenser and method for dispensing discrete amounts of liquid

Positive displacement dispenser for dispensing discrete amounts of liquid

In one aspect, an adhesive dispensing systemincludes a dispensing modulehaving an inlet and an outlet, a supplyof hot melt adhesive maintained at low pressure, and a low pressure liquid passagewaycommunicating between the supplyand the inlet of the dispensing module. Liquid material is received through the inlet at a low pressure, and the dispensing modulerapidly develops high pressure at the outletto jet the liquid material from the outlet. In another aspect, an apparatus for jetting liquid material includes a dispenser bodyhaving a liquid chamber. A pistonis movably disposed within the liquid chamber, from a position wherein a piston tipis spaced from a complimentary shaped recess, to a position wherein the piston tipeffectively seals off the recess, then to a position wherein the piston tipis received within the recessto displace a discrete volume of liquid material from the recess

A force amplifying driver system including an actuator () with a powered actuating member () mounted for movement along a first distance 'X'. A driven member () mounted for movement along a second distance or working distance 'Y' which is less than the first distance &#x201c;X&#x201d;. The powered actuating member () is movable through a gap &#x201c;Z&#x201d; before being mechanically coupled with the driven member () and subsequently moves with the driven member () along the second distance &#x201c;Y&#x201d;. Energy is transferred from the powered actuating member () to the driven member () along the second or working distance &#x201c;Y&#x201d;. The force amplifying driver system may be used for actuating a fluid jetting dispenser ().

Force amplifying driver system and jetting dispenser and method of dispensing fluid

A nozzle for dispensing molten thermoplastic material includes non-circular outlets spaced apart from one another in a predetermined pattern. The nozzle may be used to dispense patterns of adhesive that form closed geometric shapes, such as for use in making hermetic seals.

Nozzle and related apparatus and method for dispensing molten thermoplastic material

A device for carrying a heated liquid, and controlling the temperature of the heated liquid includes a liquid conveying element including a passage for carrying the heated liquid. First and second temperature sensing devices are operatively associated with the liquid conveying element to sense the temperature of the heated liquid. A controller is actively connected to the first temperature sensing device. The first temperature sensing device thereby senses the temperature of the heated liquid in the passage and conveys the temperature information or readings to the controller for use in the heater control. The second temperature sensing device is capable of being actively connected to the controller upon failure or malfunction of the first temperature sensing device.

Heated device and method of redundant temperature sensing

A method and apparatus for dispensing material, including adhesives, onto a substrate, including boxes and cartoons. A first and second dispenser are either operated in a dispense and standby mode or both dispense at least a portion of the dispensed pattern. The detection of a failure of one of the dispensing guns causes the other gun to dispense the complete pattern while de-activating the failed gun thereby maintaining production.

Method and apparatus for dispensing material onto substrates

A liquid dispensing device including a body generally having an actuator cavity and a liquid passage. A valve seat element is connected to the body and a valve stem is mounted for movement within the body with respect to the valve seat element. Inner and outer magnetic elements are disposed around the periphery of the valve stem to couple the valve stem to the valve actuator. The inner magnetic element is connected to the valve stem for movement with the valve stem within the body. The outer magnetic element is connected with an actuator and is slidable within the body in response to, for example, pressurized air being applied against the actuator. The magnetic elements couple the valve stem to the actuator and eliminate the need for a dynamic seal between the valve stem and body.

Liquid dispensing device and methods utilizing a magnetically coupled

A uniaxial mounting for dispensing apparatus includes one or more uniaxial connecting portions on a dispenser and at least one support member having at least one complementary uniaxial mounting portion. The uniaxial mounting portions may include projections and generally complementary channels allowing rapid installation, removal and replacement of the dispenser. The support member may include a locking pivot for further adjustment capability. When dispensing heated liquids, a thermal insulator is incorporated to reduce heat conduction between the dispenser and the support member. The uniaxial mounting may have an alignment guide to ensure proper positioning of the dispenser along the axis of engagement between the uniaxial connecting portions.

Liquid dispensing device and methods utilizing a uniaxial mounting

A nozzle assembly (11) of an adhesive dispensing valve (10) includes a first valve (32) adjacent a discharge orifice (34). The first valve (32) opens to permit the flow of adhesive therethrough and closes to terminate the flow of adhesive in response to respective first and second states of the valve operating module (14). The adhesive dispensing valve (10) has a separable nozzle plate (102) that includes the first valve seat (100) and the discharge orifice (34) and is coupled to a nozzle body (72) with a mounting cap (104). A secondary valve (146) is located upstream of the first valve (32) and permits adhesive to flow therethrough in response to both of the first and second states of the valve operating module. However, as the mounting cap (104) and nozzle plate (102) are removed, the secondary valve (146) automatically engages its valve seat (94), thereby terminating the flow of adhesive while the nozzle plate (102) is removed from the valve body (16).

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Cumming, GA, United States of America

Edward C Taylor