Patent US3669323A successfully refreshed from Google Patents.
US3669323A
Expired / Lapsed
US
⏱️ 0.0 years remaining
One-way valve insert for collapsible dispensing containers
Assignee: Primerica Inc
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Filing: 1969-12-12
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Granted: 1972-06-13
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Expires: 1989-12-12
Abstract
Abstract A collapsible dispensing container tube having a thermoplastic headpiece united to a tubular body with a one-way valve insert positioned in the upper part of the tube to perform an anti-suckback function by blocking the flow of air into the tubular body when manual pressure on the tubular body is released after the dispensing of a desired portion of product from the tube.
Inventors
- 👤 Royce Kenneth Harker
- 👤 Warren Wilson Prickett
- 👤 Kurt Fritz Roesch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:59
CPC Classifications
B; B65; B65D; B65D47/00; B65D47/04; B65D47/20; B65D47/2018; B65D47/2031; B65D35/00; B65D35/14
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
328 words
In a collapsible dispensing container tube comprising a flexibly, resilient tubular body and an annular headpiece having a centrally bored neck with a dispensing end opening and a conical breast with its lower end connected to said tubular body, the headpiece and tubular body forming a unitary tube structure capable of containing a product, a one-way valve insert comprising: an annular base positioned contiguous with the interior surface of the tubular body, frictionally engaged therewith, and adjacent to the lower end of the conical breast of the headpiece; a coniCal annular shoulder positioned contiguous with the interior surface of the conical breast of the headpiece; a conical annular trunk connecting the upper end of the annular base of the lower end of the conical annular shoulder, said trunk being radially inwardly spaced from the annular location of connection between the lower end of the conical breast of the headpiece and the tubular body; an annular head positioned contiguous with the lower interior surface of the neck of the headpiece, frictionally engaged therewith, said head connected at its lower end to the upper end of the conical annular shoulder; and a closure diaphragm positioned transversely of the upper end of the annular head and connected thereto at the outer edge of said diaphragm, said diaphragm being spaced remote from the dispensing end opening of the container tube, said diaphragm having a die-cut opening therein such that a portion of said diaphragm forms a one-way valve so that upon compressing the tubular body to dispense a portion of the product therefrom said product pushes against the diaphragm causing the one-way valve to flex open towards the dispensing end opening of the tube permitting the product to dispense therefrom, and, upon releasing the tubular body to cease dispensing the product therefrom, the product ceases to push the diaphragm, the resilience of the one-way valve causing said valve to close preventing air from being drawn into the interior of the tubular body.
Claim 2
Dependent Claim
328 words
In a collapsible dispensing container tube comprising a flexibly, resilient tubular body and an annular headpiece having a centrally bored neck with a dispensing end opening and a conical breast with its lower end connected to said tubular body, the headpiece and tubular body forming a unitary tube structure capable of containing a product, a one-way valve insert comprising: an annular base positioned contiguous with the interior surface of the tubular body, frictionally engaged therewith, and adjacent to the lower end of the conical breast of the headpiece; a coniCal annular shoulder positioned contiguous with the interior surface of the conical breast of the headpiece; a conical annular trunk connecting the upper end of the annular base of the lower end of the conical annular shoulder, said trunk being radially inwardly spaced from the annular location of connection between the lower end of the conical breast of the headpiece and the tubular body; an annular head positioned contiguous with the lower interior surface of the neck of the headpiece, frictionally engaged therewith, said head connected at its lower end to the upper end of the conical annular shoulder; and a closure diaphragm positioned transversely of the upper end of the annular head and connected thereto at the outer edge of said diaphragm, said diaphragm being spaced remote from the dispensing end opening of the container tube, said diaphragm having a die-cut opening therein such that a portion of said diaphragm forms a one-way valve so that upon compressing the tubular body to dispense a portion of the product therefrom said product pushes against the diaphragm causing the one-way valve to flex open towards the dispensing end opening of the tube permitting the product to dispense therefrom, and, upon releasing the tubular body to cease dispensing the product therefrom, the product ceases to push the diaphragm, the resilience of the one-way valve causing said valve to close preventing air from being drawn into the interior of the tubular body.
Claim 3
Dependent Claim
248 words
A one-way valve insert, capable of being placed in a collapsible dispensing container having a flexibly resilient tubular body and an annular headpiece, said headpiece having a neck with a dispensing end opening and a breast with its lower end connected to said tubular body, comprising: an annular base adapted to be positioned contiguous with the interior surface of the tubular body in frictional engagement therewith, adjacent to the lower end of the breast of the headpiece; a conical annular shoulder adapted to be in contact with the interior surface of the breast of the headpiece; a conical annular trunk connecting the upper end of the annular base to the lower end of the conical annular shoulder, said trunk adapted to be radially inwardly spaced from the annular location of connection between the lower end of the breast and the tubular body; an annular head adapted to be positioned contiguous with the lower interior surface of the neck of the headpiece in frictional engagement therewith, said head connected at its lower end to the upper end of the conical annular shoulder; and a closure diaphragm positioned transversely of the upper end of the annular head and connected thereto at the outer edge of said diaphragm, said diaphragm adapted to be spaced remote from the dispensing end opening of the container tube, said diaphragm having a die-cut opening therein such that a portion of said diaphragm forms a one-way valve capable of a flexing action above said diaphragm position.
Claim 4
Dependent Claim
248 words
A one-way valve insert, capable of being placed in a collapsible dispensing container having a flexibly resilient tubular body and an annular headpiece, said headpiece having a neck with a dispensing end opening and a breast with its lower end connected to said tubular body, comprising: an annular base adapted to be positioned contiguous with the interior surface of the tubular body in frictional engagement therewith, adjacent to the lower end of the breast of the headpiece; a conical annular shoulder adapted to be in contact with the interior surface of the breast of the headpiece; a conical annular trunk connecting the upper end of the annular base to the lower end of the conical annular shoulder, said trunk adapted to be radially inwardly spaced from the annular location of connection between the lower end of the breast and the tubular body; an annular head adapted to be positioned contiguous with the lower interior surface of the neck of the headpiece in frictional engagement therewith, said head connected at its lower end to the upper end of the conical annular shoulder; and a closure diaphragm positioned transversely of the upper end of the annular head and connected thereto at the outer edge of said diaphragm, said diaphragm adapted to be spaced remote from the dispensing end opening of the container tube, said diaphragm having a die-cut opening therein such that a portion of said diaphragm forms a one-way valve capable of a flexing action above said diaphragm position.
Claim 5
Dependent Claim
19 words
A one-way valve insert according to claim 2 wherein a feather edge defines the die-cut opening in the diaphragm.
Claim 6
Dependent Claim
22 words
A one-way valve insert according to claim 2 wherein the configuration of the die-cut opening is in the form of a spiral.
Claim 7
Dependent Claim
30 words
A one-way valve insert according to claim 2 wherein the configuration of the die-cut opening is in the form of two semi-circles, positioned tangentially at the midpoints of their circumferences.
Claim 8
Dependent Claim
29 words
A one-way valve insert according to claim 2 wherein the configuration of the die cut opening is in the form of two parallel lines with a line transverse thereto.
Claim 9
Dependent Claim
23 words
A one-way valve insert according to claim 2 wherein the configuration of the die-cut opening is in the form of a multi-pronged star.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-06-13 | 1975-12-13 | 1976-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-13 | 1979-12-13 | 1980-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-13 | 1983-12-13 | 1984-06-13 | $7700.00 | Window Closed / Lapsed |