Abstract: 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 “X”. The powered actuating member is movable through a gap “Z” before being mechanically coupled with the driven member and subsequently moves with the driven member along the second distance “Y”. Energy is transferred from the powered actuating member to the driven member along the second or working distance “Y”. The force amplifying driver system may be used for actuating a fluid jetting dispenser.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: In one aspect, an adhesive dispensing system 30 includes a dispensing module 32 having an inlet and an outlet, a supply 35 of hot melt adhesive maintained at low pressure, and a low pressure liquid passageway 44 communicating between the supply 35 and the inlet of the dispensing module 32. Liquid material is received through the inlet at a low pressure, and the dispensing module 32 rapidly develops high pressure at the outlet 78 to jet the liquid material from the outlet 78. In another aspect, an apparatus for jetting liquid material includes a dispenser body 38 having a liquid chamber 40. A piston 54 is movably disposed within the liquid chamber 40, from a position wherein a piston tip 58 is spaced from a complimentary shaped recess 76, to a position wherein the piston tip 58 effectively seals off the recess 76, then to a position wherein the piston tip 58 is received within the recess 76 to displace a discrete volume of liquid material from the recess 76.

Abstract: 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 “X”. The powered actuating member is movable through a gap “Z” before being mechanically coupled with the driven member and subsequently moves with the driven member along the second distance “Y”. Energy is transferred from the powered actuating member to the driven member along the second or working distance “Y”. The force amplifying driver system may be used for actuating a fluid jetting dispenser.

Abstract: A force amplifying driver system including an actuator (12) with a powered actuating member (22) mounted for movement along a first distance “X”. A driven member (46) mounted for movement along a second distance or working distance “Y” which is less than the first distance “X”. The powered actuating member (24) is movable through a gap “Z” before being mechanically coupled with the driven member (46) and subsequently moves with the driven member (46) along the second distance “Y”. Energy is transferred from the powered actuating member (24) to the driven member (46) along the second or working distance “Y”. The force amplifying driver system may be used for actuating a fluid jetting dispenser (14).

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: In one aspect, an adhesive dispensing system 30 includes a dispensing module 32 having an inlet and an outlet, a supply 35 of hot melt adhesive maintained at low pressure, and a low pressure liquid passageway 44 communicating between the supply 35 and the inlet of the dispensing module 32. Liquid material is received through the inlet at a low pressure, and the dispensing module 32 rapidly develops high pressure at the outlet 78 to jet the liquid material from the outlet 78. In another aspect, an apparatus for jetting liquid material includes a dispenser body 38 having a liquid chamber 40. A piston 54 is movably disposed within the liquid chamber 40, from a position wherein a piston tip 58 is spaced from a complimentary shaped recess 76, to a position wherein the piston tip 58 effectively seals off the recess 76, then to a position wherein the piston tip 58 is received within the recess 76 to displace a discrete volume of liquid material from the recess 76.

Abstract: An apparatus 10 for jetting liquid material in desired patterns includes a jetting module 18 that is couplable to a source of liquid material 12. A piston 46 is disposed for movement within an interior chamber 42 to rapidly develop high pressure within the module 18 so that liquid material 12 is jetted from through a pattern plate 70 in a desired pattern.

Abstract: A force amplifying driver system including an actuator (12) with a powered actuating member (22) mounted for movement along a first distance “X”. A driven member (46) mounted for movement along a second distance or working distance “Y” which is less than the first distance “X”. The powered actuating member (24) is movable through a gap “Z” before being mechanically coupled with the driven member (46) and subsequently moves with the driven member (46) along the second distance “Y”. Energy is transferred from the powered actuating member (24) to the driven member (46) along the second or working distance “Y”. The force amplifying driver system may be used for actuating a fluid jetting dispenser (14).

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.