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公开(公告)号：US20140367409A1
公开(公告)日：2014-12-18
申请号：US14281296
申请日：2014-05-19
Applicant: Nordson Corporation
Inventor： Henry Digregorio , James A. Gadol , Jeff Groene
IPC: B65D83/00
CPC classification number: B65D83/0005
Abstract: A liquid dispensing syringe and method for reducing piston bounce includes a barrel and a piston. The barrel defines an interior reservoir having an inner surface. The piston is disposed within the interior reservoir and has a proximal end and an elastic portion configured to expand under the influence of a pressurized gas. A first circumferentially extending wiper seal is positioned on the piston. The first wiper seal liquidly seals against the inner surface. A second circumferentially extending wiper seal is positioned on the piston proximally from the first wiper seal on the elastic portion. As such, the expanding elastic portion forces the second wiper seal to fluidly sealing against the inner surface for inhibiting the pressurized gas from flowing distally beyond the second wiper seal in order to reduce piston bounce.
Abstract translation: 用于减少活塞反弹的液体分配注射器和方法包括筒和活塞。 筒体限定具有内表面的内部储存器。 活塞设置在内部储存器内并且具有近端和弹性部分，该弹性部分构造成在加压气体的影响下膨胀。 第一周向延伸的擦拭器密封件定位在活塞上。 第一个刮水器密封液体密封在内表面上。 第二周向延伸的擦拭器密封件从弹性部分上的第一擦拭器密封件向近侧定位在活塞上。 因此，膨胀的弹性部分迫使第二擦拭器密封件相对于内表面流体密封，以阻止加压气体远离第二擦拭器密封件流动，以减少活塞反弹。
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公开(公告)号：US09309042B2
公开(公告)日：2016-04-12
申请号：US14281296
申请日：2014-05-19
Applicant: Nordson Corporation
Inventor： Henry Digregorio , James A. Gadol , Jeff Groene
CPC classification number: B65D83/0005
Abstract: A liquid dispensing syringe and method for reducing piston bounce includes a barrel and a piston. The barrel defines an interior reservoir having an inner surface. The piston is disposed within the interior reservoir and has a proximal end and an elastic portion configured to expand under the influence of a pressurized gas. A first circumferentially extending wiper seal is positioned on the piston. The first wiper seal liquidly seals against the inner surface. A second circumferentially extending wiper seal is positioned on the piston proximally from the first wiper seal on the elastic portion. As such, the expanding elastic portion forces the second wiper seal to fluidly sealing against the inner surface for inhibiting the pressurized gas from flowing distally beyond the second wiper seal in order to reduce piston bounce.
Abstract translation: 用于减少活塞反弹的液体分配注射器和方法包括筒和活塞。 筒体限定具有内表面的内部储存器。 活塞设置在内部储存器内并且具有近端和弹性部分，该弹性部分构造成在加压气体的影响下膨胀。 第一周向延伸的擦拭器密封件定位在活塞上。 第一个刮水器密封液体密封在内表面上。 第二周向延伸的擦拭器密封件从弹性部分上的第一擦拭器密封件向近侧定位在活塞上。 因此，膨胀的弹性部分迫使第二擦拭器密封件相对于内表面流体密封，以阻止加压气体远离第二擦拭器密封件流动，以减少活塞反弹。
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公开(公告)号：US11975351B2
公开(公告)日：2024-05-07
申请号：US17424530
申请日：2020-01-21
Applicant: NORDSON CORPORATION
Inventor： Jeff Groene , Richard Murphy , Robert Carvahlo
CPC classification number: B05C11/1034 , B05B1/083 , B05B12/004 , B05C5/0225
Abstract: Applicators and methods for dispensing material are disclosed. The applicator includes a syringe defining an inlet, and outlet, a chamber extending from the inlet to the outlet, a plunger disposed within the chamber, and a piston attached to the plunger, where the piston is configured to move the plunger through the chamber. The applicator also includes an actuation mechanism configured to linearly translate the piston through the chamber so as to dispense material through the outlet, a sensor attached to the plunger, where the sensor is configured to sense a linear movement of the plunger, and a controller configured to adjust operation of the actuation mechanism based on the linear movement sensed by the sensor such that the piston repeatedly dispenses a predetermined amount of the material from the outlet of the syringe over a plurality of dispense cycles.
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公开(公告)号：US10130970B2
公开(公告)日：2018-11-20
申请号：US15122183
申请日：2015-02-11
Applicant: NORDSON CORPORATION
Inventor： Jeff Groene , John D. Jones , Nicole Nurse
Abstract: Jetting dispensers and methods for jetting droplets of fluid material are disclosed. A jetting dispenser may include a fluid module and a plunger. A fluid module includes a fluid body member having within it a fluid body bore, and a nozzle having a dispensing opening. A plunger has a distal tip end surface that opposes and is complementary to a nozzle element surface of the nozzle adapted is moveable between a retracted position spaced from the dispensing opening and a forward position proximate to but spaced from the nozzle. At least one droplet of fluid material is jetted from the dispensing opening as the plunger moves from the retracted position to the forward position. The plunger is stopped prior to contacting the nozzle, so wear is lessoned and fluid material containing particles may be dispensed.
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