← Back to Patent Explorer
US3912080A Expired / Lapsed US ⏱️ 0.0 years remaining

Container of plastic foil

Assignee: Individual
•
Filing: 1973-09-28
•
Granted: 1975-10-14
•
Expires: 1993-09-28
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract A container of plastic foil consists of two elongated half sections joined together as by heat bonding to form a cylindrical center portion and a reduced top and bottom portion. The center portion and the bottom portion are inserted in a mechanically stiff sleeve.

Inventors

  • 👤 Ragnar O Winberg

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-07 15:05
CPC Classifications
B; B65; B65D; B65D75/00; B65D75/28; B65D75/30; B65D75/32; B65B; B65B9/00

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 231 words
A container having a thin lining, the container including: a. a one-piece sheet of which the lining is comprised; b. a seamless fold in said sheet, said fold being disposed at the upper end of the container and defining first and second halves of said sheet; c. a discharge opening in the region of said seamless fold; d. each half of said sheet including a recess therein, each recess extending over a major portion of each half, said recesses of both halves co-operating to define a confined area within the lining; e. each sheet half including a flange half extending between the associated recess and the outer periphery of that sheet half; f. said flange halves defining a filling opening; g. said flange halves being joined together to form a flange about the container and to close said filing opening, said flange lying in a plane in which the center line of the container also lies; h. the lining including a cylindrical center portion terminating at one end into a convex, dome-shaped bottom portion and at the other end into a top portion; i. a mechanically stiff sleeve disposed about said center portion and bottom portion of the lining and tightly fitting said center portion; j. portions of said flange extending along said center portion of said lining being folded over and being compressed between said center portion and said sleeve.
Claim 2
Dependent Claim 231 words
A container having a thin lining, the container including: a. a one-piece sheet of which the lining is comprised; b. a seamless fold in said sheet, said fold being disposed at the upper end of the container and defining first and second halves of said sheet; c. a discharge opening in the region of said seamless fold; d. each half of said sheet including a recess therein, each recess extending over a major portion of each half, said recesses of both halves co-operating to define a confined area within the lining; e. each sheet half including a flange half extending between the associated recess and the outer periphery of that sheet half; f. said flange halves defining a filling opening; g. said flange halves being joined together to form a flange about the container and to close said filing opening, said flange lying in a plane in which the center line of the container also lies; h. the lining including a cylindrical center portion terminating at one end into a convex, dome-shaped bottom portion and at the other end into a top portion; i. a mechanically stiff sleeve disposed about said center portion and bottom portion of the lining and tightly fitting said center portion; j. portions of said flange extending along said center portion of said lining being folded over and being compressed between said center portion and said sleeve.
Claim 3
Dependent Claim 24 words
A container according to claim 1, wherein portions of the flange halves extending from the bottom portion of the lining are shaped as handles.
Claim 4
Dependent Claim 35 words
A container according to claim 1, including a closure for said discharge opening, said closure comprising a continuous strip attached to said top portion on both sides of said seamless fold defining said sheet halves.
Claim 5
Dependent Claim 23 words
A container according to claim 3, wherein said discharge opening is disposed on both sides of said seamless fold defining said sheet halves.

References Cited (Backward Citations)

US1603207A Cited
US2987234A Cited
US3493142A Cited
US3527439A Cited
US3633780A Cited
US3770185A Cited
US3802324A Cited
US3776375A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1978-10-13 1979-04-14 1979-10-14 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1982-10-13 1983-04-14 1983-10-14 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1986-10-13 1987-04-14 1987-10-14 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag