Syringe dispenser, stand and application plate for said syringe dispenser and method for its use
First Claim
Patent Images
1. A syringe dispenser, comprisinga plunger having an outer threading;
- a barrel adapted to contain a material to be dispensed and to receive the plunger, the plunger being movably attached to the barrel; and
a nut having an inner threading;
wherein the nut at least partly encloses the plunger and the barrel, such that the inner threading of the nut engages with the outer threading of the plunger;
wherein the nut is an openable snap-on nut being releasably attached to the plunger and the barrel, respectively;
wherein the nut is of a unitary, one-piece construction with two half cylindrical parts connected by a hinge;
wherein the half cylindrical parts have respective parting faces that are (1) exposed when the nut is opened about the hinge, and (2) unexposed in confrontation with each other when the nut is in a closed condition;
wherein a first one of the parting faces hasa ramped surface, such that a plane coincident with the ramped surface is spaced apart from a longitudinal center axis of the nut, anda blind hole provided closer to the longitudinal center axis than the ramped surface; and
wherein a second one of the parting faces has a guide post that extends into the blind hole when he nut is in the dosed condition.
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Abstract
A syringe dispenser may include a plunger having an outer threading, a barrel adapted to contain liquid or semisolid fluid or any other material to be dispensed and to receive the plunger, the plunger being movably attached to the barrel, and a nut having an inner threading. The nut may at least partly enclose the plunger and the barrel, such that the inner threading of the nut engages with the outer threading of the plunger. A stand, an application plate, and a method of dispensing a controlled and measurable amount of liquid or semisolid fluid from a syringe dispenser are also disclosed.
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Citations
13 Claims
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1. A syringe dispenser, comprising
a plunger having an outer threading; -
a barrel adapted to contain a material to be dispensed and to receive the plunger, the plunger being movably attached to the barrel; and a nut having an inner threading; wherein the nut at least partly encloses the plunger and the barrel, such that the inner threading of the nut engages with the outer threading of the plunger; wherein the nut is an openable snap-on nut being releasably attached to the plunger and the barrel, respectively; wherein the nut is of a unitary, one-piece construction with two half cylindrical parts connected by a hinge; wherein the half cylindrical parts have respective parting faces that are (1) exposed when the nut is opened about the hinge, and (2) unexposed in confrontation with each other when the nut is in a closed condition; wherein a first one of the parting faces has a ramped surface, such that a plane coincident with the ramped surface is spaced apart from a longitudinal center axis of the nut, and a blind hole provided closer to the longitudinal center axis than the ramped surface; and wherein a second one of the parting faces has a guide post that extends into the blind hole when he nut is in the dosed condition. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method of dispensing a controlled and measurable amount of material from a syringe dispenser, the method comprising:
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providing a plunger having an outer threading; providing a barrel containing material; movably attaching the plunger to the barrel; releasably arranging an openable snap-on nut having an inner threading around the plunger and the barrel, respectively; wherein the nut is of a unitary, one-piece construction with two half cylindrical parts connected by a hinge; wherein the half cylindrical parts have respective parting faces that are (1) exposed when the nut is opened about the hinge, and (2) unexposed in confrontation with each other when the nut is in a closed condition; wherein a first one of the parting faces has a ramped surface, such that a plane coincident with the ramped surface is spaced apart from a longitudinal center axis of the nut, and a blind hole provided closer to the longitudinal center axis than the ramped surface; wherein a second one of the parting faces has a guide post that extends into the blind hole when the nut is in the closed condition; engaging the inner threading of the nut with the outer threading of the plunger; and rotating the plunger relative to the nut and the barrel a distance, such that a controlled and measurable amount of material corresponding to the distance is dispensed from the syringe dispenser. - View Dependent Claims (13)
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Specification