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US3894682A Expired / Lapsed US ⏱️ 0.0 years remaining

Container with filling opening and closure means therefor

Assignee: Gilman Paper Co
•
Filing: 1973-10-26
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Granted: 1975-07-15
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Expires: 1993-10-26
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Abstract

Abstract A container, such as a bag formed of paper or the like, is formed with an opening through which a tube or other type of filling member may be inserted for the purpose of conveying material into the container. The filling opening of the container is generally defined by opposing flexible panels which can be spread apart by the insertion of the filling or tube member. In one embodiment, a closure sleeve is disposed within the filling opening of the container and is secured to the opposing panels defining the filling opening. At its inner end, the sleeve is formed of flexible and resilient material which is so constructed as to curl up on itself in its normal state, thereby serving to close and seal the filling opening of the container. When it is desired to fill the container, the filling member is inserted into the filling opening and through the sleeve member so as to uncurl the inner end of the sleeve member for the purpose of opening it. In this manner, material may be introduced through the filling member or tube into the interior of the container. In a second embodiment, a single closure sheet rather than a sleeve is secured to one of the panels defining the filling opening, and the inner portion of the closure sheet is formed of flexible and resilient material that is normally curled upon itself as to engage the inner portion of the other panel defining the filling opening to thereby close the filling opening.

Inventors

  • 👤 Arnold C Harmsen

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-06 17:11
CPC Classifications
B; B65; B65D; B65D31/00; B65D31/14; B65D31/147; B65D31/145

Claims Analysis

Total Claims: 14
Claim 1
Independent Claim 97 words
Closure means for a container having a filling opening, said closure means comprising: a first portion disposed within said filling opening and secured to the portion of the container defining said filling opening, and a second flexible and resilient portion disposed within said container that is so constructed as to normally curl upon itself and engage said container portion to close said filling opening, said second portion being temporarily secured to an adjacent portion of said container so as to be maintained in a flat, uncurled condition before a filling member is inserted in said filling opening.
Claim 2
Dependent Claim 97 words
Closure means for a container having a filling opening, said closure means comprising: a first portion disposed within said filling opening and secured to the portion of the container defining said filling opening, and a second flexible and resilient portion disposed within said container that is so constructed as to normally curl upon itself and engage said container portion to close said filling opening, said second portion being temporarily secured to an adjacent portion of said container so as to be maintained in a flat, uncurled condition before a filling member is inserted in said filling opening.
Claim 3
Dependent Claim 18 words
The closure means of claim 1 wherein said second portion is adhesively secured to the adjacent container portion.
Claim 4
Dependent Claim 105 words
A container having a filling opening defined by opposed portions thereof, and closure means for said filling opening, said closure means comprising: a first portion disposed within said filling opening and secured to one of said container portions, and a second flexible and resilient portion disposed within said container and being so constructed as to normally curl upon itself and engage the other of said container portions to close said filling opening, said second portion being temporarily secured to an adjacent portion of said container so as to be maintained in a flat, uncurled condition before a filling member is inserted in said filling opening.
Claim 5
Dependent Claim 105 words
A container having a filling opening defined by opposed portions thereof, and closure means for said filling opening, said closure means comprising: a first portion disposed within said filling opening and secured to one of said container portions, and a second flexible and resilient portion disposed within said container and being so constructed as to normally curl upon itself and engage the other of said container portions to close said filling opening, said second portion being temporarily secured to an adjacent portion of said container so as to be maintained in a flat, uncurled condition before a filling member is inserted in said filling opening.
Claim 6
Dependent Claim 27 words
The container of claim 3 wherein said closure means is a flexible sleeve and said first portion thereof is secured to both of said opposed container portions.
Claim 7
Dependent Claim 33 words
The container of claim 4 wherein said sleeVe surrounds said filling opening and is adapted to receive therethrough a container filling member to uncurl said second portion thereof and open said filling opening.
Claim 8
Dependent Claim 13 words
The container of claim 3 wherein said closure means is a flexible sheet.
Claim 9
Dependent Claim 38 words
The container of claim 6 wherein said sheet surrounds a portion of said filling opening and is adapted to be uncurled by the insertion of a container filling member into said filling opening, thereby opening said filling opening.
Claim 10
Dependent Claim 40 words
The container of claim 3 wherein the other of said container portions is a movable flap that is separable from said one container portion to enable a container filling member to be inserted into the container through said filling opening.
Claim 11
Dependent Claim 33 words
The container of claim 3 wherein said second closure means portion is formed of flexible material and a flexible and resilient wire member is secured thereto to cause it to curl upon itself.
Claim 12
Dependent Claim 17 words
The container of claim 3 wherein said second portion is adhesively secured to the adjacent container portion.
Claim 13
Dependent Claim 35 words
The container of claim 3 wherein said container has a sidewall with a longitudinal lap seam, and said filling opening is located in the portion of said seam near the upper end of said container.
Claim 14
Dependent Claim 29 words
The container of claim 11 wherein the end of said first portion of said closure means is disposed outwardly of said seam and adjacent the side of said container.

References Cited (Backward Citations)

US810318A Cited
US2799314A Cited
US3261267A Cited
US3201030A Cited
US3441199A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1978-07-14 1979-01-13 1979-07-15 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1982-07-14 1983-01-13 1983-07-15 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1986-07-14 1987-01-13 1987-07-15 $7700.00 Window Closed / Lapsed

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