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US3568878A Expired / Lapsed US ⏱️ 0.0 years remaining

Container

Assignee: Dart Container Corp
•
Filing: 1967-07-06
•
Granted: 1971-03-09
•
Expires: 1987-07-06
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Abstract

Abstract A one-piece nestable thin wall container made from plastic sheet material including a novel stacking configuration which permits axial yielding movement of a nested stack of similarly configured containers when a weight is impressed thereon.

Inventors

  • 👤 Stephen Fotos

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-01 23:55
CPC Classifications
B; B65; B65D; B65D21/00; B65D21/02; B65D21/0233; B65D1/00; B65D1/22; B65D1/26

Claims Analysis

Total Claims: 7
Claim 1
Independent Claim 301 words
A one-piece nestable thin wall container made from plastic sheet material comprising a container body portion and pedestal therefor, said container body portion in upright position having a radially inwardly extending and substantially horizontal bottom portion to which the pedestal is integrally attached and an outwardly tapering sidewall extending in a direction opposite to the pedestal and terminating in a substantially open mouth at the end of said tapering sidewall, said pedestal including a depending skirt portion of resilient character which flares outwardly from its connection with said container bottom portion at an acute angle to a diameter at its outer free extremity slightly less than the smallest internal diameter of said container body portion in the vicinity of the juncture of the bottom portion and sidewall thereof, said container adapted to nestably receive and to be nestably received by like containers of similar configuration with the pedestal skirt portion of each container above the bottom container in the nested stack resting upon the bottom portion of a subjacent container at an inwardly open acute angle for permissive outward sliding surface contact therewith when a weight is impressed thereon and determining the stack height Of said nested containers, the depending skirt portion of each pedestal in said nested stack of containers capable of yielding an axial direction when a weight is impressed thereon to cause outward sliding radial enlargement of the outer free extremity thereof, the dimensional difference between the outer free extremity of each depending skirt portion and the container body portion of a subjacent container in the vicinity of the juncture of the bottom portion and sidewall thereof defining a space therebetween to accommodate the radial enlargement of the depending skirt portion at its outer free extremity and thereby provide axial breathing between the containers in said nested stack.
Claim 2
Dependent Claim 301 words
A one-piece nestable thin wall container made from plastic sheet material comprising a container body portion and pedestal therefor, said container body portion in upright position having a radially inwardly extending and substantially horizontal bottom portion to which the pedestal is integrally attached and an outwardly tapering sidewall extending in a direction opposite to the pedestal and terminating in a substantially open mouth at the end of said tapering sidewall, said pedestal including a depending skirt portion of resilient character which flares outwardly from its connection with said container bottom portion at an acute angle to a diameter at its outer free extremity slightly less than the smallest internal diameter of said container body portion in the vicinity of the juncture of the bottom portion and sidewall thereof, said container adapted to nestably receive and to be nestably received by like containers of similar configuration with the pedestal skirt portion of each container above the bottom container in the nested stack resting upon the bottom portion of a subjacent container at an inwardly open acute angle for permissive outward sliding surface contact therewith when a weight is impressed thereon and determining the stack height Of said nested containers, the depending skirt portion of each pedestal in said nested stack of containers capable of yielding an axial direction when a weight is impressed thereon to cause outward sliding radial enlargement of the outer free extremity thereof, the dimensional difference between the outer free extremity of each depending skirt portion and the container body portion of a subjacent container in the vicinity of the juncture of the bottom portion and sidewall thereof defining a space therebetween to accommodate the radial enlargement of the depending skirt portion at its outer free extremity and thereby provide axial breathing between the containers in said nested stack.
Claim 3
Dependent Claim 46 words
The container as defined in claim 1 wherein the sidewall has a predetermined substantially uniform thickness, said depending skirt portion being of solid cross section and at least twice the thickness of said sidewall throughout its axial height to strengthen and support the container when filled.
Claim 4
Dependent Claim 54 words
The container as defined in claim 1 wherein the axial height of the pedestal is of a character to facilitate manual gripping of the container in the area between the container bottom portion and the outer free extremity of said pedestal and aid in thermally insulating the user from the contents of the containers.
Claim 5
Dependent Claim 18 words
The container as claimed in claim 1, wherein the pedestal skirt portion is a double wall reentrant formation.
Claim 6
Dependent Claim 28 words
The container as defined in claim 1, wherein the outer end portion of the skirt portion is substantially flat to complement the engaged surface of the bottom portion.
Claim 7
Dependent Claim 29 words
The container as defined in claim 1, wherein the bottom portion is continuous radially across the container and the skirt portion is integral therewith and of solid cross section.

References Cited (Backward Citations)

US3123273A Cited
GB190416878A Cited
US3094240A Cited
FR1321330A Cited
US3185331A Cited
US3288340A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1974-03-08 1974-09-07 1975-03-09 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1978-03-08 1978-09-07 1979-03-09 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1982-03-08 1982-09-07 1983-03-09 $7700.00 Window Closed / Lapsed

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