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US5094355A Expired / Lapsed US ⏱️ 0.0 years remaining

Hinged-lid food container with sealable compartments employing front and side latching means

Assignee: Pactiv LLC
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Filing: 1990-12-20
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Granted: 1992-03-10
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Expires: 2010-12-20
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Abstract

Abstract A hinged-lid food container having sealable compartments for the discrete storage and dispensing of a plurality of various comestibles, in which a cover member is adapted to sealingly isolate each compartment in the closed condition of the container. The container comprises a tray member having a plurality of compartments separated by upstanding wall portions, a bottom wall structure and a peripheral sidewall forming an encompassing tray rim; a cover member hingedly joined to the tray member along a portion of the tray rim, the cover member having a peripheral depending wall structure engageable with the tray rim to form a closed container arrangement; and depending rib means formed in the cover member engageable with the surfaces of the upstanding wall portions of the tray compartments for sealing the compartments in the closed condition of the container; wherein the cover member and the tray member each include peripheral flange portions, at least one latching means being formed in the peripheral flange portion of the tray member for receiving the corresponding flange portion of the cover member in the closed condition of the container so as to provide a sealed container structure.

Inventors

  • 👤 Terry A. Clark
  • 👤 Richard T. Warburton

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-04 18:56
CPC Classifications
B; B65; B65D; B65D43/00; B65D43/14; B65D43/16; B65D43/162; B65D1/00; B65D1/34; B65D1/36; B65D2251/00; B65D2251/10; B65D2251/1016; B65D2251/1025

Claims Analysis

Total Claims: 11
Claim 1
Independent Claim 281 words
A hinged-lid container having sealable compartments for discreetly storing and serving a plurality of foods or the like, comprising: (a) a tray member having a plurality of compartments separated by upstanding wall portions, a bottom wall structure and a peripheral sidewall forming an encompassing tray rim; (b) a cover member hingedly joined to said tray member along a portion of said tray rim, said cover member having a peripheral depending wall structure engageable with said tray rim to form a closed container arrangement; and (c) depending rib means formed in said cover member engageable with the surfaces of the upstanding wall portions of said tray compartments for sealing said compartments said depending rib means being in surface engaging contact with the exterior upstanding wall portions of said compartments in the closed condition of said container; wherein said cover member and said tray member each include peripheral flange portions, at least one latching means comprising a curved latch body having a longitudinal slit therein being formed in the peripheral flange portion of said tray member on each of the sides adjacent to the hinged connection between said members for receiving the corresponding flange portion of said cover member in the closed condition of said container so as to provide a sealed container structure; said exterior upstanding wall portions of said compartments have essentially beaded upper ends extending substantially co-planar with said flange structure of said tray member; and said flange portion of said cover member includes tabs along an edge opposite the hinged connection between said members, and slit means in the flange portion of said tray member cooperatively engageable by said tabs for releasably latching said container in a closed condition.
Claim 2
Dependent Claim 281 words
A hinged-lid container having sealable compartments for discreetly storing and serving a plurality of foods or the like, comprising: (a) a tray member having a plurality of compartments separated by upstanding wall portions, a bottom wall structure and a peripheral sidewall forming an encompassing tray rim; (b) a cover member hingedly joined to said tray member along a portion of said tray rim, said cover member having a peripheral depending wall structure engageable with said tray rim to form a closed container arrangement; and (c) depending rib means formed in said cover member engageable with the surfaces of the upstanding wall portions of said tray compartments for sealing said compartments said depending rib means being in surface engaging contact with the exterior upstanding wall portions of said compartments in the closed condition of said container; wherein said cover member and said tray member each include peripheral flange portions, at least one latching means comprising a curved latch body having a longitudinal slit therein being formed in the peripheral flange portion of said tray member on each of the sides adjacent to the hinged connection between said members for receiving the corresponding flange portion of said cover member in the closed condition of said container so as to provide a sealed container structure; said exterior upstanding wall portions of said compartments have essentially beaded upper ends extending substantially co-planar with said flange structure of said tray member; and said flange portion of said cover member includes tabs along an edge opposite the hinged connection between said members, and slit means in the flange portion of said tray member cooperatively engageable by said tabs for releasably latching said container in a closed condition.
Claim 3
Dependent Claim 15 words
The hinged-lid container of claim 1, wherein said container is of a generally rectangular configuration.
Claim 4
Dependent Claim 16 words
The hinged-lid container of claim 2, wherein said container is constituted from a foamed thermoplastic material.
Claim 5
Dependent Claim 16 words
The hinged-lid container of claim 1, wherein said container is constituted from a foamed thermoplastic material.
Claim 6
Dependent Claim 12 words
The hinged-lid container of claim 3, wherein said thermoplastic material comprises polystyrene.
Claim 7
Dependent Claim 12 words
The hinged-lid container of claim 1, wherein said thermoplastic material comprises polystyrene.
Claim 8
Dependent Claim 14 words
The hinged-lid container of claim 5, wherein said container is transparent to microwave energy.
Claim 9
Dependent Claim 14 words
The hinged-lid container of claim 1, wherein said container is transparent to microwave energy.
Claim 10
Dependent Claim 34 words
The hinged-lid container of claim 7, wherein at least one compartment of said tray member has a rib-like wavilinear bottom wall structure in order to impart additional stiffness and rigidity to said tray member.
Claim 11
Dependent Claim 34 words
The hinged-lid container of claim 1, wherein at least one compartment of said tray member has a rib-like wavilinear bottom wall structure in order to impart additional stiffness and rigidity to said tray member.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1995-03-10 1995-09-09 1996-03-10 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1999-03-10 1999-09-09 2000-03-10 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2003-03-10 2003-09-09 2004-03-10 $7700.00 Window Closed / Lapsed

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