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US 2014/0227019 A1Published application
Dispenser and Process
AssigneeJames Alexander Corporation
InventorsRichard J. May, Philip J. Blyskal, George Clark
Life of this patent
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Abstract
A dispenser (10) for dispensing flowable materials has a container (12) having an outer wall (16) and a membrane (34) collectively defining a first chamber (18) configured to contain a flowable material. The membrane (34) extends from the outer wall (16) at an angle. The membrane (34) has a thickness and a weld seam (40), and the weld seam (40) has a thickness less than the thickness of the membrane (34).
Claims47
A dispenser for dispensing a flowable material, the dispenser comprising:
- a container having an outer wall and a membrane collectively defining a first chamber configured to contain a flowable material,
- the membrane extending from the outer wall at an angle, the membrane having a thickness and a weld seam, the weld seam having a thickness less than the thickness of the membrane.
A one-piece dispenser for dispensing a flowable material, the dispenser comprising:
- a container having an outer wall and a membrane collectively defining a first chamber configured to contain a flowable material, wherein the membrane is generally conically-shaped,
- the conically-shaped membrane extending from the outer wall, the membrane having a thickness and a weld seam, the weld seam having a thickness less than the thickness of the membrane, wherein the container and membrane are integral with one another.
A one-piece injection molded dispenser, the dispenser comprising:
- a container having an outer wall and a membrane extending from the outer wall at an angle from the outer wall wherein the membrane is conically-shaped, the membrane positioned within the container to define a first chamber and a second chamber in the container, the first chamber containing a flowable material, the membrane being formed by a plurality of segments of injected molded material wherein adjacent segments abut one another to form respective weld seams, each weld seam having a thickness less than the thicknesses of the segments, the second chamber receiving a swab in an interference fit, wherein upon force applied to the outer wall proximate the membrane, the membrane fractures wherein the flowable material passes through the membrane into the second chamber wherein the swab absorbs the flowable material to be further dispensed from the swab.
A one-piece injection molded dispenser, the dispenser comprising:
- a container having an outer wall and a membrane defining a chamber configured to contain a flowable material, the membrane extending from the outer wall at an angle from the outer wall wherein the membrane is conically-shaped, the membrane being formed by a plurality of segments of injected molded material wherein adjacent segments abut one another to form respective weld seams, each weld seam having a thickness less than the thicknesses of the segments, wherein the membrane is positioned at a distal end of the container wherein one side of the membrane is exposed to an outside environment, wherein upon force applied to the outer wall proximate the membrane, the membrane fractures wherein the flowable material passes through the membrane.
A dispenser for dispensing a flowable material, the dispenser comprising:
- a container having an outer wall and a membrane collectively defining a first chamber configured to contain ea flowable material, the membrane extending from the outer wall at an angle, the membrane having a thickness and a weld seam, the weld seam having a thickness less than the thickness of the membrane, wherein force applied to the membrane causes the weld seam to fracture wherein the flowable substance configured to be contained in the container is configured to be dispensed from the container, and wherein after the weld seam is fractured, the membrane returns to a substantially closed position when force is removed from the container wherein the flowable substance does not pass by the membrane.
A method of forming a dispenser for dispensing flowable materials from the dispenser, the method comprising the steps of:
- providing a mold having a mold cavity to correspond to the exterior surface of the dispenser and a first core point having a length and a second core pin having a length, the core pins corresponding to the interior surface of the dispenser, the first core pin having a conically-shaped end face with a raised structure thereon, and the second core pin having a recessed end face;
- inserting the first core pin and raised structure into the mold cavity wherein a first space is maintained between the mold and the length of the first core pin;
- inserting the second core pin into the mold cavity wherein a second space is maintained between the mold and the length of the second core pin, wherein the first core pin end face is received by the recessed end face and such that the first core pin end face confronts in spaced relation, the second core pin end face to define a membrane space wherein the raised structure is spaced from the second core pin end face to define an interface area;
- injecting a thermoplastic material into the mold wherein the material flows into the first space, second space and membrane space wherein the material flowing into the membrane space flows on opposite sides of the raise structure and abuts substantially at the interface area to define a weld seam;
- and
- removing the first and second core pins and removing the molded dispenser from the mold.
3 more elements
Dependencies are inferred from the claim text.