IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0028392
(1993-03-09)
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발명자
/ 주소 |
- Song, John
- Hofmann, Richard W.
- Illenberger, Michael C.
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출원인 / 주소 |
|
대리인 / 주소 |
Laff, Whitesel, Conte & Saret
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인용정보 |
피인용 횟수 :
7 인용 특허 :
4 |
초록
▼
A dispensing device to be fitted to the top of a container and to be used to dispense heavy or viscous fluid from the container. It is a unitary structure that comprises generally a spout having a fluid passageway, a rod extending through the center of the spout, and a skirt bounding the base of the
A dispensing device to be fitted to the top of a container and to be used to dispense heavy or viscous fluid from the container. It is a unitary structure that comprises generally a spout having a fluid passageway, a rod extending through the center of the spout, and a skirt bounding the base of the spout. The rod is joined to the inner wall of the spout by a relatively thin rectangular brace. The rod is generally cylindrical and has chamfered ends. An annular, curved member is formed inside the skirt and extends away from the spout to form a bottomless bowl portion interconnecting the spout passageway to form a continuous fluid passageway. The rod provides additional surface area for the liquid to cling to while it is being dispensed and also delays venting as the container is righted after the desired amount of liquid is dispensed, thereby preventing drippage. In addition, the bottomless bowl prevents clogging because it causes the liquid in the passageway to be pulled back from the spout into the container.
대표청구항
▼
1. A dispenser adapted to dispense a viscous liquid from a container having a container opening at the container top, comprising: a spout having an inner wall defining a fluid passageway terminating in a dispensing opening at one end of said spout; a skirt bounding said spout opposite said one e
1. A dispenser adapted to dispense a viscous liquid from a container having a container opening at the container top, comprising: a spout having an inner wall defining a fluid passageway terminating in a dispensing opening at one end of said spout; a skirt bounding said spout opposite said one end, said skirt being adapted to be fitted to the top of the container to allow fluid passage between the container opening and said fluid passageway, an annular member extending annularly and opposite one end of said spout to form a bottomless bowl that has a diameter larger than said spout and that interconnects said fluid passageway to allow fluid flow between the fluid passageway and said bottomless bowl; a rod extending through the center of said fluid passageway; a relatively thin brace joining said rod to said spout inside said passageway, one edge of said brace being attached to said inner wall and the other edge of said brace being attached to said elongated rod; and said rod having one end portion above said brace and extending from said brace toward said dispensing opening and an other end portion below said brace extending from said brace into said bottomless bowl. 2. The dispenser of claim 1 wherein the diameter of said rod gradually decreases from said brace to each end of said rod to provide said rod with two tapered end portions. 3. The dispenser of claim 1 wherein said braces is generally rectangular and substantially shorter in length than said rod and the thickness of said brace is substantially less than the radius of said passageway, and said rod being generally cylindrical. 4. The dispenser of claim 1 wherein a transition from said spout to said bottomless bowl portion is by a curved surface formed at the base of said spout. 5. The dispenser of claim 4 wherein said curved surface formed at the base of said spout has a radius that ranges from about 0.010 to about 0.125 inches. 6. The dispenser of claim 4 further comprising a flexible claw member extending annularly around the inside of said skirt to engage the top of the container when said skirt is fitted on the container to cause said claw to flex upwardly and thereby prevent fluid from escaping from the side of said container. 7. The dispenser of claim 1 wherein said fluid passageway has a dispensing end, a fluid passageway opposite end, said bottomless bowl having one end connecting said bowl to said fluid passageway and an opposite bottomless bowl open end, and said rod other end portion extending from said brace beyond said bottomless bowl open end. 8. The dispenser of claim 7 wherein said brace is generally rectangular and substantially shorter in length than said rod and the thickness of said brace is substantially less than the radius of said passageway. 9. The dispenser of claim 7 wherein the diameter of said rod gradually decreases from said brace to each end of said rod to provide said rod with two tapered end portions. 10. The dispenser of claim 7 further comprising a flexible claw member extending annularly around the inside of said skirt to engage the top of the container when said skirt is fitted to the container to cause said claw to flex upwardly and thereby prevent fluid from escaping from the side of said container. 11. The dispenser of claim 7 wherein said skirt has a bottom and top tier with said spout being jointed to said top tier, a flexible claw member extending annularly around the inside of said skirt to engage the top of the container when said skirt is fitted on the container to cause said claw to flex upwardly and thereby prevent fluid from escaping from the side of said container. 12. The dispenser of claim 11 wherein said brace is generally rectangular and substantially shorter in length than said rod and wherein the thickness of said brace is substantially less than the radius of said passageway, and said rod gradually decreases from said brace to each end of said rod to provide said rod with two tapered end portions. 13. The dispenser of claim 12 wherein the dispenser is one-piece molded plastic dispenser. 14. A dispenser adapted to dispense a viscous liquid from a container having a container opening at the container top, comprising: a spout having an inner wall defining a fluid passageway terminating in a dispensing opening at one end of said spout and a fluid passageway opposite end; a skirt bounding said spout opposite said one end, said skirt being adapted to be fitted to the top of the container to allow fluid passage between the container opening and said fluid passageway, a rod extending through said fluid passageway and spaced from said inner wall; a relatively thin brace joining said rod to said spout inside said passageway, one edge of said brace being attached to said inner wall and the other edge of said brace being attached to said rod; said rod having one end portion above said brace and extending from said brace toward said dispensing opening and a second end portion below said brace and extending from said brace into an area defined by said skirt. 15. The dispenser of claim 14 wherein said brace is generally rectangular and substantially shorter in length than said rod and the thickness of said brace is substantially less than the radius of said passageway, and said rod being generally cylindrical. 16. The dispenser of claim 14 wherein the diameter of said rod gradually decreases from said brace to each end of said rod to provide said rod with two tapered end portions. 17. The dispenser of claim 14 wherein said dispenser is a one-piece molded plastic dispenser. 18. A dispenser adapted to dispense a viscous liquid from a container having a container opening at the container top, comprising: a spout having a fluid passageway terminating in a dispensing opening at one end of said spout; a skirt bounding said spout opposite said one end, said skirt being adapted to be fitted to the top of the container to allow fluid passage between the container opening and said fluid passageway, an annular member extending annularly and opposite one end of said spout to form a bottomless bowl that has a diameter larger than said spout and that interconnects said fluid passageway to allow fluid flow between the fluid passageway and said bottomless bowl; a rod extending through the center of said fluid passageway, said rod is generally cylindrical and each end of said rod is chamfered at an angle of about 45 degrees; and a relatively thin brace joining said rod to said spout inside said passageway. 19. The dispenser of claim 18 wherein said brace is generally rectangular, one longitudinal edge of said brace being attached to said inner wall and the other longitudinal edge being attached to said elongated rod. 20. The dispenser of claim 19 wherein said brace is substantially shorter in length than said elongated rod, and wherein the thickness of said brace is substantially less than the radius of said passageway. 21. The dispenser of claim 20 wherein the diameter of said rod gradually decreases from said brace to each end of said rod to define slopes in the surface of said rod. 22. The dispenser of claim 21 wherein the transition from said spout to said bottomless bowl portion is by a curved surface formed at the base of said spout having a radius that ranges from about 0.010 to about 0.125 inches. 23. The dispenser of claim 22 wherein said one end of said spout adjacent the dispensing opening is rounded. 24. The dispenser of claim 23 wherein said skirt comprises top and bottom tiers, said spout being joined to said top tier, said bottom tier being engagable with said container at said aperture. 25. The dispenser of claim 24 wherein an annular boss extends on the inside of said bottom tier, said boss being engagable with the top of said container. 26. The dispenser of claim 25 further comprising a flexible claw member extending annularly around said bottom tier underneath said top tier, engagement of the top of the container with the boss causing said claw to flex upwardly and thereby prevent fluid from escaping from the side of said container. 27. The dispenser of claim 26 wherein the radius of said bottomless bowl is approximately 0.26. 28. The dispenser of claim 27 further comprising a cap adapted to close said dispensing opening and means for engaging said cap to said dispenser. 29. The dispenser of claim 28 wherein said engaging means comprises a complimentary boss formed on said top tier of said skirt and an internal annular recess formed on said cap to receive said boss. 30. A one-piece plastic dispenser adapted to dispense a viscous liquid from a container having an opening at its top, said dispenser comprising: a spout having a fluid passageway terminating in a dispensing opening at one end of said spout, said one end being rounded to allow smooth fluid flow; a skirt bounding said spout opposite said one end adapted to be fitted to the top of the container to allow fluid passage between the opening and said fluid passageway, said skirt comprising top and bottom tiers, said spout being joined to said top tier, an annular boss extending on the inside of said bottom tier, said annular boss being engageable with the top of said container; a flexible claw member extending annularly around said bottom tier underneath said top tier, engagement of the top of the container with said annular boss causing said claw to flex upwardly and thereby prevent fluid from escaping from the side of the top of said container; a rod extending through the axial center of said fluid passageway, said rod being generally cylindrical and each end of said rod being chamfered; a relatively thin brace joining said rod to said spout inside said passageway, said brace being generally rectangular, one longitudinal edge of said brace being attached to said inner wall and the other longitudinal edge being attached to said elongated rod, said brace being substantially shorter in length than said elongated rod and being centered along the length of said elongated rod, the thickness of said brace being substantially less than the radius of said passageway; a curved member formed on the bottom of said skirt extending annularly opposite said spout to form a bottomless bowl interconnecting said fluid passageway to allow fluid flow between the fluid passageway and said bottomless bowl the outer edge of said bowl being chamfered; a curved neck joining the bottomless bowl to the other end of said spout; the diameter of said rod gradually decreases from said brace to each end of said rod to define slopes in the surface of said rod. 31. The dispenser of claim 29 wherein the diameter of said fluid passageway ranges from about 0.125 inches to about 0.500 inches. 32. The dispenser of claim 30 the cross-sectional area of said spout passageway ranges from about 0.015 square inches to about 0.25 square inches. 33. The dispenser of claim 29 wherein the surface area of said rod is about 25% to 50% of the surface area of the inner wall of said spout, and the cross-sectional area of said bowl at an open end is about 1.5 to 2.5 times a cross-sectional area of said spout passageway. 34. The dispenser of claim 30 wherein the radius of said curved neck ranges from 0.010 inches to 0.125 inches. 35. The dispenser of claim 29 wherein the radius of said bottomless bowl is about 0.260 inches.
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