Bottle transfer coupling device

Claim 2

In a coupling device for transferring viscous fluids from a first bottle having a pouring spout of predetermined internal diameter to a second bottle of like character, a coupling body construction having first and second sleeve portions adapted for receiving the pouring spouts of the first and second bottles, said sleeve portions being provided with means for engaging external threads formed on the pouring spouts of said bottles, and an annular rib portion extending around the interior of the body between the sleeve portions to provide a limiting abutment for engaging the ends of said pouring spouts and holding said ends a predetermined distance apart, said rib portion having an internal diameter greater than the internal diameter of said pouring spouts and cooperating with said pouring spouts to form an annular expansion chamber between the ends of said spouts adjacent said rib portion.

Claim 3

In apparatus for transferring a fluid substance from one container to another, one of said containers being held in a position vertically above the other container, the confronting portions of said containers being formed with openings of predetermined cross-sectional area for passing the fluid substance, a coupling device including means for engaging the confronting portions of the containers and holding said confronting portions a predetermined distance apart, said coupling device being formed to provide an enclosed region intermediate the confronting portions of the containers in communication with the openings therein, said region having a greater cross-sectional area than said openings.

Claim 4

In apparatus for transferring a fluid substance from one container to another, one of said containers being held in a position vertically above the other container, the confronting portions of said containers being formed with openings of predetermined cross-sectional area for passing the fluid substance, a coupling device including means for engaging the confronting portions of the containers and holding said confronting portions a predetermined distance apart, said coupling device being formed to provide an enclosed region intermediate the confronting portions of the containers in communication with the openings therein, said region having a greater cross-sectional area than said openings.

Claim 5

In a combination for transferring a viscous fluid from one container to another, a first bottle having a neck portion of predetermined internal diameter, a second bottle of like character, and a coupling device comprising a body having upper and lower sleeve portions engaging the neck portions of said bottles and holding said first bottle in an inverted position above said second bottle with said neck portions in vertical registration, each of said sleeve portions being provided with a plurality of circumferentially spaced apart lugs proximate its outer end, said lugs extending radially inward from the internal walls of said sleeve portions and engaging external threads on the neck portions of said bottles, said coupling device being formed to include an annular rib extending around the interior of said body intermediate the neck portions of the bottles, said rib having a greater internal diameter than said neck portions and cooperating with the confronting ends of said neck portions to form between said confronting ends a region of greater cross-sectional area than the flow passageways formed by the internal walls of said neck portions.

Claim 6

In a combination for transferring a viscous fluid from one container to another, a first bottle having a neck portion of predetermined internal diameter, a second bottle of like character, and a coupling device comprising a body having upper and lower sleeve portions engaging the neck portions of said bottles and holding said first bottle in an inverted position above said second bottle with said neck portions in vertical registration, each of said sleeve portions being provided with a plurality of circumferentially spaced apart lugs proximate its outer end, said lugs extending radially inward from the internal walls of said sleeve portions and engaging external threads on the neck portions of said bottles, said coupling device being formed to include an annular rib extending around the interior of said body intermediate the neck portions of the bottles, said rib having a greater internal diameter than said neck portions and cooperating with the confronting ends of said neck portions to form between said confronting ends a region of greater cross-sectional area than the flow passageways formed by the internal walls of said neck portions.

Claim 7

A coupling device as in claim 1 wherein the means for engaging external threads includes a plurality of circumferentially spaced apart lugs proximate the outer ends of said sleeve portions, said lugs extending radially inward from the internal walls of said sleeve portions.