US4910033A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum skin packages with reduced product discoloration
Assignee: Cryovac LLC
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Filing: 1988-05-13
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Granted: 1990-03-20
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Expires: 2008-05-13
Abstract
Abstract Discoloration of meat products due to oxygen starvation in stacked packages is significantly reduced by applying a textured surface to the bottom of the packages. A discrete textured film may be adhered to a tray or supporting member, or the tray or supporting member may itself be textured at its bottom surface.
Inventors
- 👤 Solomon Bekele
- 👤 Allen C. Williams, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:46
CPC Classifications
B; B65; B65D; B65D81/00; B65D81/24
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
116 words
A skin package comprising: (a) a gas impervious support member having a top surface and a bottom surface; (b) a meat product held securely to the top surface of the support member; (c) a film member which holds the product to the support member, said film member including (i) a first portion which conforms to the shape of the product, and (ii) a second portion sealed to the top surface of the support member around the periphery of the product; and (d) a thermoplastic film, at least one surface of which is a textured surface, adhered to the bottom surface of the support member such that the textured surface is the bottom surface of the package.
Claim 2
Dependent Claim
116 words
A skin package comprising: (a) a gas impervious support member having a top surface and a bottom surface; (b) a meat product held securely to the top surface of the support member; (c) a film member which holds the product to the support member, said film member including (i) a first portion which conforms to the shape of the product, and (ii) a second portion sealed to the top surface of the support member around the periphery of the product; and (d) a thermoplastic film, at least one surface of which is a textured surface, adhered to the bottom surface of the support member such that the textured surface is the bottom surface of the package.
Claim 3
Independent Claim
112 words
A method of reducing discoloration of a meat product in a first skin package, when a second skin package of the same type is stacked on top of said first package, the first package having: (a) a gas impervious support member, and (b) a gas perious film member which holds the product to the support member, comprising adhering a thermoplastic film, at least one surface of which is a textured surface, to the bottom surface of the support member of the second package, such that when the second package is stacked on he first package, the textured surface of the thermoplastic film is in contact with the top of the first package.
Claim 4
Independent Claim
112 words
A method of reducing discoloration of a meat product in a first skin package, when a second skin package of the same type is stacked on top of said first package, the first package having: (a) a gas impervious support member, and (b) a gas perious film member which holds the product to the support member, comprising adhering a thermoplastic film, at least one surface of which is a textured surface, to the bottom surface of the support member of the second package, such that when the second package is stacked on he first package, the textured surface of the thermoplastic film is in contact with the top of the first package.
Claim 5
Independent Claim
116 words
A method of making a skin package useful in reducing meat discoloration comprising: (a) feeding a gas impervious thermoplastic material toward a loading station, said material having a top surface and a bottom surface; (b) adhering a thermoplastic film, having a first surface and a second textured surface, to the bottom surface of the material so that the first surface of the film is adhered to the bottom surface of the material; (c) loading a meat product onto the top surface of the material at the loading station; (d) covering the product and the top surface of the material with a film member; and (e) sealing the film member to the top surface of the material.
Claim 6
Independent Claim
116 words
A method of making a skin package useful in reducing meat discoloration comprising: (a) feeding a gas impervious thermoplastic material toward a loading station, said material having a top surface and a bottom surface; (b) adhering a thermoplastic film, having a first surface and a second textured surface, to the bottom surface of the material so that the first surface of the film is adhered to the bottom surface of the material; (c) loading a meat product onto the top surface of the material at the loading station; (d) covering the product and the top surface of the material with a film member; and (e) sealing the film member to the top surface of the material.
Claim 7
Dependent Claim
62 words
The method according to claim 3 further comprising, between steps (b) and (c): (i) feeding the material, with the thermoplastic film adhered thereto, to a thermoforming station; (ii) heating the material to its forming temperature; (iii) drawing the heated material into a mold to form a thermoformed support member; and (iv) moving the support member from the mold to the loading station.
Claim 8
Dependent Claim
52 words
The method according to claim 3 further comprising between steps (a) and (b): (l) feeding the material to a thermoforming station; (ll) heating the material to its forming temperature; (lll) drawing the heated material into a mold to form a thermoformed support member; and (iv) removing the support member from the mold.
Claim 9
Independent Claim
113 words
A method of making a skin package useful in reducing meat discoloration comprising: (a) feeding a gas impervious thermoplastic material toward a loading station, said material having a top surface and a bottom surface; (b) loading a meat product onto the top surface of the thermoplastic material at the loading station; (c) covering the product and top surface of the thermoplastic material with a film member; (d) sealing the film member to the top surface of the material; and (e) adhering a thermoplastic film, having a first surface and a second textured surface, to the bottom surface of the material so that the textured surface is the bottom surface of the final package.
Claim 10
Independent Claim
113 words
A method of making a skin package useful in reducing meat discoloration comprising: (a) feeding a gas impervious thermoplastic material toward a loading station, said material having a top surface and a bottom surface; (b) loading a meat product onto the top surface of the thermoplastic material at the loading station; (c) covering the product and top surface of the thermoplastic material with a film member; (d) sealing the film member to the top surface of the material; and (e) adhering a thermoplastic film, having a first surface and a second textured surface, to the bottom surface of the material so that the textured surface is the bottom surface of the final package.
Claim 11
Dependent Claim
57 words
The method according to claim 6 further comprising between steps (a) and (b): (i) feeding the thermoplastic material to a thermoforming station; (ii) heating the thermoplastic material to its forming temperature; (iii) drawing the heated material into a mold to form a thermoformed support member; and (iv) moving the support member fromthe mold to the loading station.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-03-19 | 1993-09-18 | 1994-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-03-19 | 1997-09-18 | 1998-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-03-19 | 2001-09-18 | 2002-03-20 | $7700.00 | Window Closed / Lapsed |