Closure cap

Claim 2

For use in the medical and biochemical art field, a reusable and removable closure cap for sealing a vial which has a uniformly dimensioned cylindrical opening exteriorly threaded at one end, comprising as a single integral unit a rigid tubular cover of plastic material interiorly threaded for registering with the threads on said vial, said cover being closed at only one end, a plug-type stopper of highly elastic and relatively soft material having a flat top area and a coaxially positioned bottom tapered portion, that part of said stopper which is below said flat top area having an annular lip intermediate the ends thereof which has a lateral dimension larger than the diameter of said cylindrical opening, but smaller than the lateral dimension of said flat top area, said tapered portion being adapted to enter the open end of said vial and to provide with said lip a liquid and air-tight seal for the contents of said vial, and a pressure-sensitive material of strong-bonding adhesive qualities bonding the central top portion of said rigid tubular cover in its interior to the central flat top portion of said highly elastic stopper, said stopper being characterized by its ability at room temperature to stretch under low stress and to return rapidly to its original shape upon release of stress.

Claim 3

A closure cap as defined in claim 1 wherein said tapered portion has a centrally positioned hollow interior which is entirely open at its bottom to the interior of said vial when said cover with its integrally bonded stopper is seated in said vial, there being a circular indented portion in said elastic stopper located between said lip and the top flat area of said stopper.

Claim 4

For use in the medical and biochemical art field, a re-usable closure cap for sealing a vial which is exteriorly threaded at one end, comprising as a single integral unit a rigid tubular cover of plastic material interiorly threaded for registering with the threads on said vial, said cover being closed at only end, a plug type stopper of highly elastic and relatively soft material having a flat top area and a coaxially positioned bottom tapered portion, said tapered portion being adapted to enter the open end of said vial and provide a liquid and air-tight seal for the contents of said vial, and a pressure-sensitive material of strong adhesive qualities bonding the top of said rigid tubular cover in its interior to the flat top of said highly elastic stopper, said stopper being characterized by its ability at room temperature to stretch under low stress and to return rapidly to its original shape upon release of stress, the top of said highly elastic stopper being provided with a groove located near the peripheral bounds of said stopper.

Claim 5

For use in the medical and biochemical art field, a re-usable closure cap for sealing a vial which is exteriorly threaded at one end, comprising as a single integral unit a rigid tubular cover of plastic material interiorly threaded for registering with the threads on said vial, said cover being closed at only end, a plug type stopper of highly elastic and relatively soft material having a flat top area and a coaxially positioned bottom tapered portion, said tapered portion being adapted to enter the open end of said vial and provide a liquid and air-tight seal for the contents of said vial, and a pressure-sensitive material of strong adhesive qualities bonding the top of said rigid tubular cover in its interior to the flat top of said highly elastic stopper, said stopper being characterized by its ability at room temperature to stretch under low stress and to return rapidly to its original shape upon release of stress, the top of said highly elastic stopper being provided with a groove located near the peripheral bounds of said stopper.

Claim 6

For use in the medical and biochemical art field, a re-usable closure cap for sealing a vial which is exteriorly threaded at one end, comprising as a single integral unit a rigid tubular cover of plastic material interiorly threaded for registering with the threads on said vial, said cover being closed at only one end, a plug type stopper of highly elastic and relatively soft material having a flat top area and a coaxially positioned bottom tapered portion, said tapered portion being adapted to enter the open end of said vial and provide a liquid and air-tight seal for the contents of said vial, and a pressure-sensitive material of strong adhesive qualities bonding the top of said rigid tubular cover in its interior to the flat top of said highly elastic stopper, said stopper being characterized by its ability at room temperature to stretch under low stress and to return rapidly to its original shape upon release of stress, the top of said highly elastic stopper being provided with a groove located near the peripheral bounds of said stopper, said groove being endless and surrounding the central part of said flat top area.

Claim 7

For use in the medical and biochemical art field, a re-usable closure cap for sealing a vial which is exteriorly threaded at one end, comprising as a single integral unit a rigid tubular cover of plastic material interiorly threaded for registering with the threads on said vial, said cover being closed at only one end, a plug type stopper of highly elastic and relatively soft material having a flat top area and a coaxially positioned bottom tapered portion, said tapered portion being adapted to enter the open end of said vial and provide a liquid and air-tight seal for the contents of said vial, and a pressure-sensitive material of strong adhesive qualities bonding the top of said rigid tubular cover in its interior to the flat top of said highly elastic stopper, said stopper being characterized by its ability at room temperature to stretch under low stress and to return rapidly to its original shape upon release of stress, the top of said highly elastic stopper being provided with a groove located near the peripheral bounds of said stopper, said groove being endless and surrounding the central part of said flat top area.

Claim 8

For use in the medical and biochemical art field, a re-usable closure cap for sealing a vial which is exteriorly threaded at one end, comprising as a single integral unit a rigid tubular cover of plastic material interiorly threaded for registering with the threads on said vial, said cover being closed at only one end, a plug type stopper of highly elastic and relatively soft material having a flat top area and a coaxially positioned bottom tapered portion, said tapered portion being adapted to enter the open end of said vial and provide a liquid and air-tight seal for the contents of said vial, and a pressure-sensitive material of strong adhesive qualities bonding the top of said rigid tubular cover in its interior to the flat top of said highly elastic stopper, said stopper being characterized by its ability at room temperature to stretch under low stress and to return rapidly to its original shape upon release of stress, the top of said highly elastic stopper being provided with a groove located near the peripheral bounds of said stopper, said groove being circular.

Claim 9

For use in the medical and biochemical art field, a re-usable closure cap for sealing a vial which is exteriorly threaded at one end, comprising as a single integral unit a rigid tubular cover of plastic material interiorly threaded for registering with the threads on said vial, said cover being closed at only one end, a plug type stopper of highly elastic and relatively soft material having a flat top area and a coaxially positioned bottom tapered portion, said tapered portion being adapted to enter the open end of said vial and provide a liquid and air-tight seal for the contents of said vial, and a pressure-sensitive material of strong adhesive qualities bonding the top of said rigid tubular cover in its interior to the flat top of said highly elastic stopper, said stopper being characterized by its ability at room temperature to stretch under low stress and to return rapidly to its original shape upon release of stress, the top of said highly elastic stopper being provided with a groove located near the peripheral bounds of said stopper, said groove being circular.

Claim 10

A closure cap comprising a rigid cover bonded to the top of a highly elastic relatively soft plug-type stopper for sealing the contents of a bottle, the top of said stopper being closed and having a groove therein surrounding the central area of said top, said stopper being characterized by its ability at room temperature to stretch under low stress and to snap rapidly back to its original shape upon release of stress.

Claim 11

A closure cap comprising a rigid cover bonded to the top of a highly elastic relatively soft plug-type stopper for sealing the contents of a bottle, the top of said stopper being closed and having a groove therein surrounding the central area of said top, said stopper being characterized by its ability at room temperature to stretch under low stress and to snap rapidly back to its original shape upon release of stress.

Claim 12

A reusable closure cap for sealing a vial having a cylindrical opening of uniform diameter which is exteriorly threaded at one end, comprising as a single integral unit a rigid tubular cover of one kind of material interiorly threaded for registering with the threads on said vial, and a plug-type stopper of a different kind of material which is highly elastic and has a closed end of such lateral dimension as to extend beyond and to rest upon the open end of said vial, and a lip intermediate the ends of said stopper having a lateral dimension in its unflexed condition, which is larger than the uniformly dimensioned diameter of the open end of the vial and also larger than other portions of said stopper below said closed end, said stopper being inseparably bonded by a pressure-sensitive bonding agent at the central portion of its closed end to the top of said rigid cover in its interior, said stopper serving to seal the contents of said vial and being characterized by its ability to stretch under relatively low stress and to snap rapidly back to its original shape upon release of stress.

Claim 13

A reusable closure cap for sealing a vial having a cylindrical opening of uniform diameter which is exteriorly threaded at one end, comprising as a single integral unit a rigid tubular cover of one kind of material interiorly threaded for registering with the threads on said vial, and a plug-type stopper of a different kind of material which is highly elastic and has a closed end of such lateral dimension as to extend beyond and to rest upon the open end of said vial, and a lip intermediate the ends of said stopper having a lateral dimension in its unflexed condition, which is larger than the uniformly dimensioned diameter of the open end of the vial and also larger than other portions of said stopper below said closed end, said stopper being inseparably bonded by a pressure-sensitive bonding agent at the central portion of its closed end to the top of said rigid cover in its interior, said stopper serving to seal the contents of said vial and being characterized by its ability to stretch under relatively low stress and to snap rapidly back to its original shape upon release of stress.

Claim 14

For use in the medical and biochemical art field, a re-usable closure cap for sealing a vial which is exteriorly threaded at one end, comprising as a single integral unit a rigid tubular cover of plastic material interiorly threaded for registering with the threads on said vial, said cover being closed at only one end, a plug type stopper of highly elastic and relatively soft material having a flat top area and a coaxially positioned bottom tapered portion, said tapered portion being adapted to enter the open end of said vial and provide a liquid and air-tight seal for the contents of said vial, and a pressure-sensitive material of strong adhesive qualities bonding the top of said rigid tubular cover in its interior to the flat top of said highly elastic stopper, said stopper being characterized by its ability at room temperature to stretch under low stress and to return rapidly to its original shape upon release of stress, said tapered portion having a centrally positioned hollow interior which is entirely open at its bottom to the interior of said vial when said cover with its integrally bonded stopper is seated in said vial, the outermost dimension of said tapered portion being approximately 13.9 mm., the diameter of the flat top area of said stopper being approximately 17.7 mm. and the medium diameter of said hollow interior being approximately 11.4 mm., the top of said highly elastic stopper being provided with an endless groove having a depth of approximately 0.4 mm., a width of 0.81 mm. and a diameter of approximately 14.3 mm.

Claim 15

For use in the medical and biochemical art field, a re-usable closure cap for sealing a vial which is exteriorly threaded at one end, comprising as a single integral unit a rigid tubular cover of plastic material interiorly threaded for registering with the threads on said vial, said cover being closed at only one end, a plug type stopper of highly elastic and relatively soft material having a flat top area and a coaxially positioned bottom tapered portion, said tapered portion being adapted to enter the open end of said vial and provide a liquid and air-tight seal for the contents of said vial, and a pressure-sensitive material of strong adhesive qualities bonding the top of said rigid tubular cover in its interior to the flat top of said highly elastic stopper, said stopper being characterized by its ability at room temperature to stretch under low stress and to return rapidly to its original shape upon release of stress, said tapered portion having a centrally positioned hollow interior which is entirely open at its bottom to the interior of said vial when said cover with its integrally bonded stopper is seated in said vial, the outermost dimension of said tapered portion being approximately 13.9 mm., the diameter of the flat top area of said stopper being approximately 17.7 mm. and the medium diameter of said hollow interior being approximately 11.4 mm., the top of said highly elastic stopper being provided with an endless groove having a depth of approximately 0.4 mm., a width of 0.81 mm. and a diameter of approximately 14.3 mm.

Claim 16

A closure cap comprising a rigid cover part bonded by an adhesive to the top of a highly elastic soft plug-type stopper part for sealing the contents of a bottle, the top of said stopper being closed and having means for receiving any excess of said adhesive applied to one or more of the parts of said cap during the bonding operation.

Claim 17

A closure cap comprising a rigid cover part bonded by an adhesive to the top of a highly elastic soft plug-type stopper part for sealing the contents of a bottle, the top of said stopper being closed and having means for receiving any excess of said adhesive applied to one or more of the parts of said cap during the bonding operation.

Claim 18

A closure cap comprising a rigid cover securely bonded in its central interior portion by adhesive to the top of a highly elastic plug-type stopper for sealing the contents of a bottle, the top of said stopper being closed and having a notch therein located between the marginal area of the stopper and the center thereof, said notch serving to receive any excess of said adhesive applied during the bonding operation.

Claim 19

A closure cap comprising a rigid cover securely bonded in its central interior portion by adhesive to the top of a highly elastic plug-type stopper for sealing the contents of a bottle, the top of said stopper being closed and having a notch therein located between the marginal area of the stopper and the center thereof, said notch serving to receive any excess of said adhesive applied during the bonding operation.