US3747804A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device and method for simultaneously dispensing different materials from a container
Assignee: Blendax GmbH
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Filing: 1971-10-22
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Granted: 1973-07-24
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Expires: 1991-10-22
Abstract
Abstract A device for simultaneously dispensing two different paste-like materials from the same container includes an outlet member which communicates with the container interior by means of a main channel leading to one of the materials and a secondary channel extending through the outlet member wall and leading to the other material.
Inventors
- 👤 H Raaf
- 👤 K Buttel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:40
CPC Classifications
B; B65; B65D; B65D35/00; B65D35/24; B65D35/242
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
189 words
A device for the simultaneous dispensing of two different paste-like materials disposed side by side in a common flow comprising a container, a first area in said container for one of the materials, a second area in said container for the other of said materials, a discharge end on said container having an outlet tip from which both materials may flow, said outlet tip incorporating a bilaterally open pipe communicating with said first area, said pipe having a main channel for the flow of the one material, said pipe having a secondary channel disposed within said main channel and connected to the wall of said pipe in communication with said second area, said first area being of greater size than said second area, said second area surrounding said pipe, said secondary channel being concentrically disposed along the axis of and within said main channel to permit a single central strip of material to flow from said secondary channel, and said main channel completely surrounding said secondary channel at the outlet end of said secondary channel to permit a single annular strip of material to form around the central strip.
Claim 2
Independent Claim
189 words
A device for the simultaneous dispensing of two different paste-like materials disposed side by side in a common flow comprising a container, a first area in said container for one of the materials, a second area in said container for the other of said materials, a discharge end on said container having an outlet tip from which both materials may flow, said outlet tip incorporating a bilaterally open pipe communicating with said first area, said pipe having a main channel for the flow of the one material, said pipe having a secondary channel disposed within said main channel and connected to the wall of said pipe in communication with said second area, said first area being of greater size than said second area, said second area surrounding said pipe, said secondary channel being concentrically disposed along the axis of and within said main channel to permit a single central strip of material to flow from said secondary channel, and said main channel completely surrounding said secondary channel at the outlet end of said secondary channel to permit a single annular strip of material to form around the central strip.
Claim 3
Dependent Claim
19 words
A device of claim 1 wherein said outlet tip is an insert disposed in the neck of said container.
Claim 4
Dependent Claim
13 words
A device of claim 2 wherein said insert is made of synthetic material.
Claim 5
Dependent Claim
33 words
A device of claim 1 wherein said container is a tube made of synthetic material and having a dispensing neck, and said outlet tip is made of synthetic material integral with said neck.
Claim 6
Dependent Claim
25 words
A device of claim 1 wherein said secondary channel terminates slightly below the end of said pipe at the discharge end of said outlet tip.
Claim 7
Dependent Claim
34 words
A device of claim 1 wherein container is a tooth paste tube, said one material being a transparent gel, and said other material being a tooth paste having a color different from said gel.
Claim 8
Independent Claim
217 words
A device for the simultaneous dispensing of two different paste-like materials disposed side by side in a common flow comprising a container, a first area in said container for one of the materials, a second area in said container for the other of said materials, a discharge end on said container having an outlet tip from which both materials may flow, said outlet tip incorporating a bilaterally open pipe communicating with said first area, said pipe having a main channel for the flow of the one material, said pipe having a secondary channel disposed within said main channel and connected to the wall of said pipe in communication with said second area, said container being a tube having a cylindrical neck, said outlet tip being of cylindrical shape and disposed in said neck, a concentric cylinder being mounted in said tube, a plurality of struts connecting the bottom end of said concentric cylinder with said wall of said pipe, said concentric cylinder being hollow and open at its top discharge end and closed at said bottom end, said struts being hollow and communicating With the hollow interior of said concentric cylinder above its bottom end, and said wall of said pipe having openings at said struts whereby said struts and said concentric cylinder comprise said secondary channel.
Claim 9
Independent Claim
217 words
A device for the simultaneous dispensing of two different paste-like materials disposed side by side in a common flow comprising a container, a first area in said container for one of the materials, a second area in said container for the other of said materials, a discharge end on said container having an outlet tip from which both materials may flow, said outlet tip incorporating a bilaterally open pipe communicating with said first area, said pipe having a main channel for the flow of the one material, said pipe having a secondary channel disposed within said main channel and connected to the wall of said pipe in communication with said second area, said container being a tube having a cylindrical neck, said outlet tip being of cylindrical shape and disposed in said neck, a concentric cylinder being mounted in said tube, a plurality of struts connecting the bottom end of said concentric cylinder with said wall of said pipe, said concentric cylinder being hollow and open at its top discharge end and closed at said bottom end, said struts being hollow and communicating With the hollow interior of said concentric cylinder above its bottom end, and said wall of said pipe having openings at said struts whereby said struts and said concentric cylinder comprise said secondary channel.
Claim 10
Dependent Claim
55 words
A device of claim 7 including a cap over said neck, said cap having an internal wall disposed toward said outlet tip, an annular tapered shoulder on said internal wall for closing said main channel, and a downwardly projecting tapered plug on said internal wall extending into said concentric cylinder for closing said secondary channel.
Claim 11
Dependent Claim
20 words
A device of claim 7 including a separating layer between said materials at about the lower end of said pipe.
Claim 12
Dependent Claim
14 words
A device of claim 7 wherein said neck and said outlet tip are integral.
Claim 13
Dependent Claim
28 words
A device of claim 7 wherein said outlet tip is an insert disposed in said neck and said outlet tip having an annular flange resting on said neck.
Claim 14
Independent Claim
133 words
A method of simultaneously dispensing two different paste-like compositions from a tube comprising providing an outlet tip in the neck of the tube with the outlet tip extending below the neck of the tube, disposing one of the compositions in the tube around but not beyond the wall of the outlet tip, providing the other of the compositions in the remainder of the tube, applying external pressure to the tube to cause both compositions to flow simultaneously toward the outlet tip, discharging the one composition through a secondary channel extending laterally through struts from the wall of the outlet tip toward the axis of the outlet tip and axially through a cylinder concentric with the outlet tip, and simultaneously discharging the other composition directly through the outlet tip and around the concentric cylinder.
Claim 15
Independent Claim
133 words
A method of simultaneously dispensing two different paste-like compositions from a tube comprising providing an outlet tip in the neck of the tube with the outlet tip extending below the neck of the tube, disposing one of the compositions in the tube around but not beyond the wall of the outlet tip, providing the other of the compositions in the remainder of the tube, applying external pressure to the tube to cause both compositions to flow simultaneously toward the outlet tip, discharging the one composition through a secondary channel extending laterally through struts from the wall of the outlet tip toward the axis of the outlet tip and axially through a cylinder concentric with the outlet tip, and simultaneously discharging the other composition directly through the outlet tip and around the concentric cylinder.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-23 | 1977-01-22 | 1977-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-23 | 1981-01-22 | 1981-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-23 | 1985-01-22 | 1985-07-24 | $7700.00 | Window Closed / Lapsed |