Transfer device for use in mixing a primary solution and a secondary or additive substance
First Claim
1. A transfer device for use in mixing substances in different containers comprising a central body portion and a pair of cannulas projecting from opposite sides of said central body portion, each of said cannulas having an outer tip portion, means defining at least one pair of transfer passages extending through said cannulas and extending the full length of said cannulas from the tip portion of one cannula to the tip portion of the other cannula, the cross sectional area of one of said transfer passages adjacent the tip of one cannula being greater than the cross sectional area of said one transfer passage adjacent the tip of said other cannula, each of the transfer passages being of circular cross section, one of said transfer passages converging toward the tip of one cannula and the other transfer passage converging toward the tip of the other cannula.
0 Assignments
0 Petitions
Accused Products
Abstract
A transfer device for use in mixing substances in different containers normally closed by a stopper of resilient material having a puncturable diaphragm consisting of a central body portion and a pair of aligned spikes or cannulas projecting from opposite sides of said central body portion. Each of the cannulas terminates in a tip portion remote from the central body portion and there are at least one pair of transfer passages extending through the cannulas, the opening at one tip portion of one of the transfer passages is of smaller cross section than the opening of said transfer passage at the tip of the other cannula. The other transfer passage is the reverse of the first transfer passage; that is, the cross sectional relationships of the openings at the tips are the opposite of the first transfer passage. Thus in use the cannulas are inserted through the stopper in a pair of containers to transfer contents, usually fluid, from one container to the other, and the specific arrangement of the transfer passages facilitates smooth flow through the transfer device, one being a fluid passage, the other an air venting passage. The invention also includes the combination of a transfer device, an outer cover member including means for supporting the transfer device therein and a detachable closure member overlying and normally sealing the opening in the outer cover member.
-
Citations
32 Claims
- 1. A transfer device for use in mixing substances in different containers comprising a central body portion and a pair of cannulas projecting from opposite sides of said central body portion, each of said cannulas having an outer tip portion, means defining at least one pair of transfer passages extending through said cannulas and extending the full length of said cannulas from the tip portion of one cannula to the tip portion of the other cannula, the cross sectional area of one of said transfer passages adjacent the tip of one cannula being greater than the cross sectional area of said one transfer passage adjacent the tip of said other cannula, each of the transfer passages being of circular cross section, one of said transfer passages converging toward the tip of one cannula and the other transfer passage converging toward the tip of the other cannula.
-
8. The combination including a transfer device for use in mixing substances in different containers;
- one of said containers having a closure member in the discharge opening therein, said transfer device comprising a central body portion and a pair of aligned cannulas projecting from opposite sides of said central body portion, each terminating at its outer end in a tip portion, means defining at least one transfer passage extending through said cannulas, an outer cover member including means for supporting the transfer device therein in spaced relation from the closure member, said outer cover member having an opening and a detachable closure member overlying said opening, means for supporting said transfer device in said outer cover member comprising at least a pair of diametrically opposed spaced lugs on the interior and having inner face portions cooperable with said central body portion to retain said transfer device in place in the outer cover member, said outer cover member having a lower section and including at least a pair of diametrically opposed detents on the inner wall thereof having axial face portions spaced apart a distance greater than the spacing of said lugs.
- View Dependent Claims (9, 10, 11, 12, 13)
-
14. The combination including a transfer device for use in mixing substances in different containers comprises a central body portion and a pair of aligned cannulas projecting from opposite sides of-said central body portion, means defining at least one transfer passage extending through said cannulas, an outer cover member including means for supporting the transfer device therein, said outer cover member including means for detachably securing it directly to the container, the portion of the outer cover member above said detachable means being provided with a plurality of axially extending score lines which upon removal of said detachable means and actuation of said cover member relative to said container to insert said transfer device causes separation along said axial score lines.
-
15. The combination including a transfer device for use in mixing substances in different containers comprising a central body portion and a pair of aligned cannulas projecting from opposite sides of said central body portion, means defining at least one pair of transfer passages extending through said cannulas, one of said transfer passages being of a greater cross sectional area at the tip of one of said cannulas than the cross sectional area of the other transfer passage, said one transfer passage having a smaller cross section than the other transfer passage at the tip of the other cannula, an outer cover member including means for supporting the transfer device therein and means in the form of a detachable tear band for detachably securing said cover member to said container, the portion of said outer cover member above said tear band being provided with a plurality of axially extending score lines which upon removal of the tear band and actuation of said cover member relative to said container to insert said transfer device causes separation along said axial score lines.
-
16. The combination including a transfer device for use in mixing substances in different containers comprising a central body portion and a pair of aligned cannulas projecting from opposite sides of said central body portion, means defining at least one pair of transfer passages extending through said cannulas, one of said transfer passages being a greater cross sectional area at the tip of one of said cannulas than the cross sectional area of the other transfer passage, said one transfer passage having a smaller cross section than the other transfer passage at the tip of the other cannula, said container having mounted in the opening thereof a puncturable diaphragm and an outer cover member including means for supporting said transfer device so that one of the tip portions overlies the puncturable diaphragm whereby upon actuation of said cover member axially towards said container, said tip portion engages through said diaphragm.
-
17. The combination including a transfer device for use in mixing substances in different containers comprising a central body portion and a pair of aligned cannulas projecting from opposite sides of said central body portion, means defining at least one transfer passage extending through said cannulas, an outer cover member including means for supporting the transfer device therein and means for detachably securing said cover member to said container, the portion of said outer cover member above said detachable means being provided with a plurality of axially extending score lines which upon removal of the detachable means and actuation of said cover member relative to said container to insert said transfer device causes separation along said axial score lines.
- 18. The combination including a transfer device for use in mixing substances in different containers comprising a central body portion and a pair of aligned cannulas projecting from opposite sides of said central body portion, means defining at least one pair of transfer passages extending through said cannulas, one of said transfer passages being of a greater cross sectional area at the tip of one of said cannulas than the cross sectional area of the other transfer passages, said one transfer passages having a smaller cross section than the other transfer passage at the tip of the other cannula, an outer cover member including means for supporting the transfer device therein, said outer cover member including means for detachably securing it directly to the container.
-
21. The combination including a transfer device for use in mixing substances in different containers comprising a central body portion and a pair of aligned cannulas projecting from opposite sides of said central body portion, means defining at least one pair of transfer passages extending through said cannulas, one of said transfer passages being of a greater cross sectional area at the tip of one of said cannulas than the cross sectional area of the other transfer passages, said one transfer passage having a smaller cross section than the other transfer passage at the tip of the other cannula, an outer cover member including means for supporting the transfer device therein, said outer cover member including means for detachably securing it directly to the container, said detachable means connecting said outer cover member including a detachable tear band connected to the housing by a scored area.
-
22. A transfer device for use in mixing substances in different containers comprising a central body portion and a pair of cannulas projecting from opposite sides of said central body portion, each of said cannulas having an outer tip portion, means defining at least one pair of transfer passages extending through said cannulas and extending the full length of said cannulas from the tip portion of one cannula to the tip portion of said other cannula, the cross sectional area of one of said transfer passages adjacent the tip of one cannula being greater than the cross sectional area of said one transfer passage adjacent the tip of said other cannula, the cross sectional area of said other transfer passage adjacent the tip of said other cannula being greater than the cross sectional area of said other passage adjacent the tip of said one cannula, the cross sectional area of said one transfer passage adjacent the tip of said one cannula being greater than the cross sectional area of said other transfer passage at the tip of said one cannula and the cross sectional area of said other transfer passage adjacent the tip of said other cannula being greater than the cross sectional area of the one transfer passage adjacent the tip of said other cannula.
- 23. The combination including a transfer device for use in mixing substances in different containers comprising a body portion and a pair of cannulas projecting from opposite sides of said body portion, means defining at least one transfer passage extending through said cannulas, an outer cover member comprising first and second sections, means detachably securing said first section of said cover member to one of said containers, means releasably connecting said first and second sections, means mounting said transfer device in said second section, a stopper assembly comprising a pierceable diaphragm portion mounted in the discharge opening in said one container one of said cannulas being aligned with said diaphragm, said second section adapted for telescoping actuation relative to said first section upon release of said connecting means whereby said one cannula punctures said diaphragm to establish communication with the interior of the container.
-
30. A transfer device for use in mixing substances in different containers comprising a central body portion and a pair of cannulas projecting from opposite sides of said central body portion, each of said cannulas having an outer tip portion, means defining at least one pair of transfer passages extending through said cannulas and extending the full length of said cannulas from the tip portion of one cannula to the tip portion of the other cannula, the cross sectional area of one of said transfer passages adjacent the tip of one cannula being greater than the cross sectional area of said one transfer passage adjacent the tip of said other cannula, one of said transfer passages converging toward the tip of one cannula and the other transfer passage converging toward the tip of the other cannula.
-
31. A transfer device for use in mixing substances in different containers comprising a central body portion and a pair of cannulas projecting from opposite sides of said central body portion, each of said cannulas having an outer tip portion, means defining at least one pair of transfer passages extending through said cannulas and extending the full length of said cannulas from the tip portion of one cannula to the tip portion of the other cannula, one of said transfer passages being tapered relative to its central axis and converging toward the tip portion of one cannula and the other transfer passage being tapered relative to its central axis and converging toward the tip portion of the other cannula.
-
32. A transfer device for use in mixing substances in different containers comprising a central body portion and a pair of cannulas projecting from opposite sides of said central body portion, each of said cannulas having an outer tip portion, means defining at least one pair of transfer passages extending through said cannulas and extending the full length of said cannulas from the tip portion of one cannula to the tip portion of the other cannula, each of said passages being of a stepped configuration, one of said transfer passages including a first passageway section extending from the tip of one cannula and being of greater cross section than a second passageway section extending from the tip of the other cannula, the other transfer passage including a third passageway section extending from the tip of one cannula and being of a smaller cross section than a fourth passageway extending from the tip of the other cannula.
Specification