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US3935990A Expired / Lapsed US ⏱️ 0.0 years remaining

Plastic reinforced produce container

Assignee: A AND E PLASTIK PAK CO Inc
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Filing: 1975-03-17
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Granted: 1976-02-03
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Expires: 1995-03-17
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Abstract

Abstract A reinforced paperboard produce container having reinforcing end frames of molded thermosetting plastic or other suitably rigid construction secured to the outer sides of the end walls of a paperboard container body with edge flanges on the frames projecting inwardly over the upper end wall edges and under the bottom wall of the body to provide upper and lower stacking edges. The reinforced containers are of sufficient strength, and interfit in such manner, that a number of them may be stacked with ample strength and stability in vertical columns. The lower stacking edges are recessed or bevelled to permit lifting of the container by a clamp truck. The container has hinged lids or cover panels formed with tabs which engage with formations on the end frames to alternatively releasably lock the lids in closed, or open, folded away positions. The containers replace wood containers previously used, and incorporate useful arrangements for latching the lids closed, for shipment, or open, for display of the produce.

Inventors

  • 👤 Walton B. Crane

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-06 12:31
CPC Classifications
B; B65; B65D; B65D5/00; B65D5/42; B65D5/44; B65D5/441; B65D5/445; B65D5/001; B65D5/005; Y; Y10; Y10S; Y10S229/00; Y10S229/915

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 333 words
In a generally rectangular container with rigid rectangular, reinforcing end frames at opposite ends thereof, the container having rectangular bottom, opposed side and end walls, and lids which are respectively hinged along longitudinal edges thereof to the upper edges of said opposed side walls, said lids having opposite longitudinal swinging edges, said rectangular end frames comprising integral, coplanar, upper, lower and side flanges parallel with the end walls of the container and lying thereadjacent, and rectangular integral upper, lower and side flanges, integral with and projecting perpendicularly from said coplanar flanges from the outer margins thereof, whereby to provide reinforcing caps receiving therein the corresponding end walls of the container and end portions of said bottom walls, with the perpendicular side flanges thereof lying closely adjacent said side walls of said container: horizontal upwardly facing and downwardly facing surface areas formed on the exterior sides of said upper and lower perpendicular flanges, the upwardly facing surface areas on said upper perpendicular flanges being at substantially the level of the underside of the hinged lids when said lids are closed, said lids having transverse end edges, and substantially coplanar tabs projecting laterally therefrom from positions generally proximate to said longitudinal swinging edges of the lids, so as to be movable to positions overlying said upwardly facing surface area on said upper perpendicular flanges, two catch means mounted on the upper perpendicular flange of each end frame, said tabs being cooperable with said catch means, one with each, to releasably catch said lids in said overlying positions, said hinged lids having corner portions, including said tabs, scored across with crease lines which are on the undersides thereof when the hinged lids are folded out and downward, and the side walls of the container having slots located for reception of said tabs when the lids are bent outwardly and down alongside the side walls of the container, said score lines enabling inward bending of said corner portions thereon and entry of said tabs into said slots.
Claim 2
Dependent Claim 333 words
In a generally rectangular container with rigid rectangular, reinforcing end frames at opposite ends thereof, the container having rectangular bottom, opposed side and end walls, and lids which are respectively hinged along longitudinal edges thereof to the upper edges of said opposed side walls, said lids having opposite longitudinal swinging edges, said rectangular end frames comprising integral, coplanar, upper, lower and side flanges parallel with the end walls of the container and lying thereadjacent, and rectangular integral upper, lower and side flanges, integral with and projecting perpendicularly from said coplanar flanges from the outer margins thereof, whereby to provide reinforcing caps receiving therein the corresponding end walls of the container and end portions of said bottom walls, with the perpendicular side flanges thereof lying closely adjacent said side walls of said container: horizontal upwardly facing and downwardly facing surface areas formed on the exterior sides of said upper and lower perpendicular flanges, the upwardly facing surface areas on said upper perpendicular flanges being at substantially the level of the underside of the hinged lids when said lids are closed, said lids having transverse end edges, and substantially coplanar tabs projecting laterally therefrom from positions generally proximate to said longitudinal swinging edges of the lids, so as to be movable to positions overlying said upwardly facing surface area on said upper perpendicular flanges, two catch means mounted on the upper perpendicular flange of each end frame, said tabs being cooperable with said catch means, one with each, to releasably catch said lids in said overlying positions, said hinged lids having corner portions, including said tabs, scored across with crease lines which are on the undersides thereof when the hinged lids are folded out and downward, and the side walls of the container having slots located for reception of said tabs when the lids are bent outwardly and down alongside the side walls of the container, said score lines enabling inward bending of said corner portions thereon and entry of said tabs into said slots.
Claim 3
Dependent Claim 20 words
The subject matter of claim 1, wherein said crease lines extend generally diagonally across said corner portions of said lids.
Claim 4
Dependent Claim 30 words
The subject matter of claim 2, wherein said catch means comprise hook means facing toward one another, and said tabs have edge shoulders engageable in the throats of said hooks.

References Cited (Backward Citations)

US3409202A Cited
US3373921A Cited
US3417909A Cited
US3485433A Cited
US3487991A Cited
US3632037A Cited
US3713579A Cited
US3820706A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1979-02-02 1979-08-04 1980-02-03 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1983-02-02 1983-08-04 1984-02-03 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1987-02-02 1987-08-04 1988-02-03 $7700.00 Window Closed / Lapsed

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