초록 ▼

A spurt-resistant spout for a dispensing structure includes (1) an internal tubular portion having a through bore connecting a dispensing orifice of the spout with the interior of the container, and (2) a surrounding wall portion surrounding the tubular portion. The tubular portion and the surroundi

A spurt-resistant spout for a dispensing structure includes (1) an internal tubular portion having a through bore connecting a dispensing orifice of the spout with the interior of the container, and (2) a surrounding wall portion surrounding the tubular portion. The tubular portion and the surrounding wall portion are sized and located so that little or no fluid is retained in and across the spout bore so as to prevent, or minimize, obstruction of the bore.

대표청구항 ▼

What is claimed is: 1. A spurt-resistant dispensing structure, for dispensing a viscous fluid comprising: a body for extending from a container substantially closing an opening thereof, said body having a wall portion with a spout having a dispensing orifice therethrough for dispensing fluid at lea

What is claimed is: 1. A spurt-resistant dispensing structure, for dispensing a viscous fluid comprising: a body for extending from a container substantially closing an opening thereof, said body having a wall portion with a spout having a dispensing orifice therethrough for dispensing fluid at least partially contained by said body, said wall portion having an inside surface for forming a meniscus of the viscous fluid thereon; said body including a conduit having a passage in fluid communication with said orifice and extending from an inside surface of said wall portion in a direction away from said spout to a first free end, said passage having a substantially constant open area along a length thereof between said inside surface to said first free end, said passage being free of obstructions, and having a width dimension of about 0.11 inches; said body including a surrounding wall structure surrounding said conduit and extending from said inside surface of said wall portion; and a pry-off lid having a collar which seals against an outside of said spout when said lid is mounted on said body. 2. The dispensing structure in accordance with claim 1 wherein said conduit comprises an annular wall having an annular cross-section. 3. The dispensing structure in accordance with claim 1 wherein said wall portion is curved upwardly to said dispensing orifice forming a spout. 4. The dispensing structure in accordance with claim 1 wherein said surrounding wall structure comprises a ring extending from said wall portion to a second free end. 5. The dispensing structure in accordance with claim 1 further comprising a lid sized to fit over said wall portion and close said dispensing orifice when said dispensing structure is not dispensing. 6. The dispensing structure in accordance with claim 1 wherein said surrounding wall structure is surrounded by a seal held within said body and extending from an underside of said wall portion for sealing against a container closed by said dispensing structure. 7. The dispensing structure in accordance with claim 1 wherein said lid is hingedly attached to said body to pivot with respect thereto. 8. The dispensing structure in accordance with claim 1 wherein said conduit has a first diameter and extends a first distance from said wall portion to said conduit first free end; said surrounding wall structure has a second diameter; and and said first diameter, said second diameter, and said first distance are relatively sized as a function of the viscosity of a fluid to be dispensed by said dispensing structure such that the fluid forms an annular meniscus having an outer edge on said surrounding wall structure and having an inner edge on said conduit. 9. The dispensing structure in accordance with claim 1 wherein said body is a unitary molded element separate from, but attachable to, a container. 10. The dispensing structure in accordance with claim 1 wherein said surrounding wall structure extends downwardly from said wall portion to a second free end thereof, said second free end located at a greater distance from said dispensing orifice than is said first free end. 11. The dispensing structure in accordance with claim 1 further comprising a sealing lip which has a generally tapered profile extending from said wall portion of said body, which surrounds said surrounding wall structure, and which is sized and arranged to seal a container fit into said body. 12. The dispensing structure in accordance with claim 1 wherein said body includes a depending skirt having a thread on an inside of said skirt for engaging a cooperating thread on a container. 13. A spurt-resistant dispensing structure comprising: a body having a deck portion and a depending skirt portion, said deck portion extending radially inwardly from an edge region of said skirt portion, said body having a spout extending upwardly from relative to said skirt portion, and said spout having an outer end defining a dispensing orifice; said body including a tubular portion extending from an inside surface of said deck portion in a direction away from said spout to a first free end and having a passage establishing fluid communication between said dispensing orifice and the interior of said skirt portion; said body including a surrounding ring portion extending from an inside surface of said deck portion to a second free end and surrounding said tubular portion; said tubular portion, said deck portion, and said surrounding ring portion together defining an annular recess for holding fluid therein; and a pry-off lid connected to said body, said lid being movable between (1) a closed position to engage said body, said lid having an annular collar arranged to seal around an outside of said spout to close said dispensing orifice of said spout when said lid is mounted on said body, and (2) a pried-off open position permitting dispensing of fluid out of said dispensing orifice. 14. The dispensing structure in accordance with claim 13 wherein said lid comprises: (a) an inner seal sized to sealingly engage said spout; and (b) a first surrounding wall sized to engage said body radially outwardly of said inner seal. 15. The dispensing structure in accordance with claim 13 wherein said first free end of said tubular portion is recessed toward said deck portion relative to said second free end of said surrounding ring portion. 16. The dispensing structure in accordance with claim 15 wherein said surrounding ring portion has a preselected diameter to hold a volume of fluid which forms an annular meniscus between said surrounding ring portion and said tubular portion, and said first free end of said tubular portion extends past said meniscus such that said tubular portion passage is free of said fluid. 17. The dispensing structure in accordance with claim 13 in which said body includes a plurality of said tubular portions. 18. A spurt-resistant dispensing structure, for dispensing a viscous fluid comprising: a body for extending from a container substantially closing an opening thereof, said body having a wall portion with a spout having a dispensing orifice therethrough for dispensing fluid at least partially contained by said body, said wall portion having an inside surface for forming a meniscus of the viscous fluid thereon; said body including a conduit having a passage in fluid communication with said orifice and extending from an inside surface of said wall portion in a direction away from said spout to a first free end, said passage having a substantially constant open area along a length thereof between said inside surface to said first free end, said passage being free of obstructions; and a pry-off lid having a lid portion which seals against an outside of said spout when said lid is mounted on said body, said open area sized to resist flow of the viscous fluid therein when said lid is pried off of said the body. 19. The dispensing structure in accordance with claim 18 wherein said open area is defined by a circle having a diameter of about 0.11 inches. 20. The dispensing structure in accordance with claim 19 wherein said conduit has a length between said inside surface and said first free end equal to about 0.34 inches. 21. The dispensing structure in accordance with claim 18 wherein said structure includes a seal bead on said lid portion to seal against said spout. 22. A spurt-resistant dispensing structure, for dispensing a viscous fluid comprising: a body for extending from a container substantially closing an opening thereof, said body having a wall portion with a spout having a dispensing orifice therethrough for dispensing fluid at least partially contained by said body, said wall portion having an inside surface for forming a meniscus of the viscous fluid thereon; and said body including a conduit having a cylindrical conduit passage of constant open area in fluid communication with said spout, said conduit extending from an inside surface of said wall portion to a first free end, said conduit having a length such that said first free end is located beyond the meniscus; and a pry-off lid having a lid portion which seals against an outside of said spout when said lid is mounted on said body, said open area sized to resist flow of the viscous fluid therein when said lid is pried off of said the body. 23. The dispensing structure in accordance with claim 22 wherein said spout has an exterior surface and said lid portion comprises a collar sized to sealingly engage said spout exterior surface. 24. The dispensing structure in accordance with claim 22 wherein said open area is defined by a circle having a diameter of about 0.11 inches. 25. The dispensing structure in accordance with claim 24 wherein said conduit has a length between said inside surface and said first free end equal to about 0.34 inches. 26. The dispensing structure in accordance with claim 22 wherein said spout includes a cylindrical spout passage terminating at said orifice and arranged colinearly with, and communicating with, said cylindrical conduit passage, said cylindrical spout passage being greater in diameter than said cylindrical conduit passage. 27. A dispensing structure for dispensing a viscous fluid comprising: a body for extending from a container substantially closing an opening thereof, said body having a wall portion with a spout having a dispensing orifice therethrough for dispensing fluid at least partially contained by said body, said wall portion having an inside surface for forming a meniscus of the viscous fluid thereon; said body including a conduit having a passage in fluid communication with said orifice and extending from an inside surface of said wall portion in a direction away from said spout to a first free end, said passage having an open area along a length thereof between said inside surface to said first free end, said passage being free of obstructions; and a pry-off lid having a lid portion which seals against an outside of said spout when said lid is mounted on said body.