摘要:
The subject invention is a system for dispensing a controlled amount of fluid product from a dispensing container which includes a pneumatically driven dispensing actuator. This actuator includes a dispensing cylinder and a movable dispensing piston. The dispensing piston is movable under pneumatic pressure within the cylinder, the cylinder including a volume of hydraulic fluid under the pneumatic pressure acting against the dispensing piston to selectively prevent movement of the dispensing piston. The invention further includes a means for selectively reducing the volume of the hydraulic fluid in the dispensing cylinder to allow the controlled movement of the dispensing piston. The controlled movement of the dispensing piston causes controlled displacement of the fluid product from the dispensing container. Advantageously, with the subject invention, a force may be generated and applied to a plunger, which can be accurately controlled. As will be recognized by those skilled in the art, the force results in movement of the plunger, which, in turn, translates into an accurate amount of fluid product being dispensed from the dispensing container.
摘要:
A dispensing apparatus provides for the dispensing of product from a collapsible tube. The apparatus includes a body for supporting the tube. The body has a forward end for accommodating a dispensing end of the tube and rearward end for accommodating a closed end of the tube. An elongate actuatable plunger is supported by the body. The plunger includes an elongate rod and a base attached to the rod. Actuating means is provided for effecting movement of the plunger in a first direction along the body for engagement with the collapsible tube wall thereby deforming the tube wall and dispensing the contents of the tube from the dispensing end. The actuating means also provides for retractable movement of the plunger in the second direction opposite the first direction. The base is positioned on the rod for dispensing engagement with the tube upon movement of the plunger in the first direction and movable out of dispensing engagement with the tube upon in a second direction.
摘要:
The present invention provides visible light curing systems, methods for reducing health risks to individuals exposed to radiation curing systems, methods for bonding substrates and visible light curing compositions.
摘要:
A fluid dispensing apparatus includes an operable peristaltic pump. The pump supports a rigid container which includes an aggressive fluid which is to be dispensed from the container. A vent tube and a dispensing tube extends from the container through the pump. Operation of the pump causes fluid to be pumped out from the container through the dispensing tube while air is pumped into the container through the vent tube. This equalizes pressure in the container and allows fluid to be dispensed from a rigid container.
摘要:
A dispensing apparatus provides for the dispensing of product from a collapsible tube. The apparatus includes a body for supporting the tube. The body has a forward end for accommodating a dispensing end of the tube and rearward end for accommodating a closed end of the tube. An elongate actuatable plunger is supported by the body. The plunger includes an elongate rod and a base attached to the rod. Actuating means is provided for effecting movement of the plunger in a first direction along the body for engagement with the collapsible tube wall thereby deforming the tube wall and dispensing the contents of the tube from the dispensing end. The actuating means also provides for retractable movement of the plunger in the second direction opposite the first direction. The base is positioned on the rod for dispensing engagement with the tube upon movement of the plunger in the first direction and movable out of dispensing engagement with the tube upon in a second direction.
摘要:
A fluid dispensing apparatus includes an operable peristaltic pump. The pump supports a rigid container which includes an aggressive fluid which is to be dispensed from the container. A vent tube and a dispensing tube extends from the container through the pump. Operation of the pump causes fluid to be pumped out from the container through the dispensing tube while air is pumped into the container through the vent tube. This equalizes pressure in the container and allows fluid to be dispensed from a rigid container.
摘要:
The subject invention is a system for dispensing a controlled amount of fluid product from a dispensing container which includes a pneumatically driven dispensing actuator. This actuator includes a dispensing cylinder and a movable dispensing piston. The dispensing piston is movable tinder pneumatic pressure within the cylinder, the cylinder including a volume of hydraulic fluid under the pneumatic pressure acting against the dispensing piston to selectively prevent movement of the dispensing piston. The invention further includes a means for selectively reducing the volume of the hydraulic fluid in the dispensing cylinder to allow the controlled movement of the dispensing piston. The controlled movement of the dispensing piston causes controlled displacement of the fluid product from the dispensing container. Advantageously, with the subject invention, a force may be generated and applied to a plunger, which can be accurately controlled. As will be recognized by those skilled in the art, the force results in movement of the plunger, which, in turn, translates into an accurate amount of fluid product being dispensed from the dispensing container.
摘要:
A noise dampening feature is provided to a valve by incorporating an annular resilient member in association with the plunger of a solenoid valve. The annular resilient member comprises an annular portion and a series of protrusions extending axially away from the annular portion. A plunger of a solenoid valve is adapted to have an annular groove into which the annular portion of the resilient member is received. By preventing the direct physical contact of the upper surface of the plunger with the lower surface of a stop member, the resilient member prevents the clicking noise that is undesirable in certain circumstances. In order to avoid restricting the normal flow of fluid through the valve, the resilient member is provided with a plurality of protrusions and recesses, or interstitial spaces, that allows fluid to flow radially inward from the region of the fluted sides of the plunger toward the central location of a secondary port formed through a stop member.