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US4321997A Expired / Lapsed US ⏱️ 0.0 years remaining

Receptacle for moisture-exuding food products

Assignee: Sealed Air Corp
•
Filing: 1981-04-29
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Granted: 1982-03-30
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Expires: 2001-04-29
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Abstract

Abstract A receptacle is provided for containing and displaying food products which tend to exude juices or liquids, and which comprises a supporting member, such as a tray or bag, and an absorbent pad associated therewith. The absorbent pad comprises a mat of liquid absorbent material, an upper liquid impermeable plastic sheet overlying the absorbent mat, and a bottom plastic sheet underlying the absorbent mat. At least one of the sheets is perforated, and spacer means is disposed between the two sheets to maintain their separation under a compressive load, and such that the ability of the pad to absorb liquids is unimpaired when the pad is subjected to a compressive load resulting from the food product resting thereon or the like. Preferably only the bottom sheet is perforated, and when a food product is positioned upon the upper sheet of the absorbent pad, any exuded liquids will flow around the pad and enter the mat by capillary action through the perforated openings of the bottom sheet, and the liquids will be held out of contact with the food product to thereby minimize contamination of the product and maintain its appearance and improve its shelf-life.

Inventors

  • 👤 Alan H. Miller

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-27 11:12
CPC Classifications
B; B65; B65D; B65D81/00; B65D81/24; B65D81/26; B65D81/264; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24149; Y10T428/24157; Y10T428/24174; Y10T428/24273; Y10T428/24322; Y10T428/24331

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 266 words
A receptacle for containing and displaying food products which tend to exude liquids, such as meat and poultry, and characterized by the ability to separate and maintain the exuded liquids from the food product to thereby minimize contamination of the food product and improve the appearance and shelf-life thereof, and comprising a food product supporting member having a wall, and an absorbent pad overlying and resting upon said wall, said pad comprising a mat of liquid absorbent material, an imperforate, liquid impermeable upper sheet overlying and covering said mat, and a bottom sheet of substantially liquid impermeable material underlying said mat so as to be disposed between said mat and said supporting member wall, the peripheral edges of said upper and bottom sheets being sealed together to enclose said mat of absorbent material therebetween, and said bottom sheet including a plurality of openings which are sized to permit passage of a liquid from said supporting member wall into said mat while substantially precluding reverse flow of the liquid and any associated bacteria back to the food product, and such that the liquid passes around the edges of the pad and into said mat and is confined by said pad out of contact with the food product, and spacer means disposed between said upper and bottom sheets of said pad for maintaining the separation of said upper and bottom sheets under the compressive load exerted by a food product resting thereupon, and to thereby minimize the compression of the mat and the reduction in the ability of the mat to absorb liquids when subjected to such load.
Claim 2
Dependent Claim 266 words
A receptacle for containing and displaying food products which tend to exude liquids, such as meat and poultry, and characterized by the ability to separate and maintain the exuded liquids from the food product to thereby minimize contamination of the food product and improve the appearance and shelf-life thereof, and comprising a food product supporting member having a wall, and an absorbent pad overlying and resting upon said wall, said pad comprising a mat of liquid absorbent material, an imperforate, liquid impermeable upper sheet overlying and covering said mat, and a bottom sheet of substantially liquid impermeable material underlying said mat so as to be disposed between said mat and said supporting member wall, the peripheral edges of said upper and bottom sheets being sealed together to enclose said mat of absorbent material therebetween, and said bottom sheet including a plurality of openings which are sized to permit passage of a liquid from said supporting member wall into said mat while substantially precluding reverse flow of the liquid and any associated bacteria back to the food product, and such that the liquid passes around the edges of the pad and into said mat and is confined by said pad out of contact with the food product, and spacer means disposed between said upper and bottom sheets of said pad for maintaining the separation of said upper and bottom sheets under the compressive load exerted by a food product resting thereupon, and to thereby minimize the compression of the mat and the reduction in the ability of the mat to absorb liquids when subjected to such load.
Claim 3
Dependent Claim 31 words
The receptacle as defined in claim 1 wherein said supporting member is in the form of a flexible plastic bag having a closeable end opening, and which encloses said pad therewithin.
Claim 4
Dependent Claim 16 words
The receptacle as defined in claim 1 wherein said supporting member comprises a relatively rigid tray.
Claim 5
Dependent Claim 58 words
The receptacle as defined in any one of claims 1-3 wherein said mat of liquid absorbent material comprises a layer of paper wadding, and wood fluff, and with the layer of paper wadding being positioned immediately adjacent said bottom sheet whereby the paper wadding acts to prevent dust from said wood fluff from passing outwardly through said openings.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1985-03-29 1985-09-28 1986-03-30 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1989-03-29 1989-09-28 1990-03-30 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1993-03-29 1993-09-28 1994-03-30 $7700.00 Window Closed / Lapsed

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