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US4120984A Expired / Lapsed US ⏱️ 0.0 years remaining

Process for preparing food in the package

Assignee: Pillsbury Co
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Filing: 1976-10-27
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Granted: 1978-10-17
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Expires: 1996-10-27
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Abstract

Abstract A process is disclosed for baking products within a package while insuring sterility therein and preventing damage to the product during the cooling step.

Inventors

  • 👤 Donald G. Richardson
  • 👤 Richard G. Hans

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-31 15:44
CPC Classifications
B; B65; B65B; B65B25/00; B65B25/22; A; A21; A21B; A21B7/00; A21D; A21D8/00; A21D8/06; B65B9/00; B65B9/02; B65B9/04; B65B9/042

Claims Analysis

Total Claims: 7
Claim 1
Independent Claim 212 words
A process of baking foods in flexible containers comprising providing a flexible package that is a barrier to microorganisms and is capable of withstanding baking temperatures, placing the farinaceous food product in the package, sealing the package to provide a filled package, maintaining a vent opening in said flexible package to allow the escape of steam and gas during baking, plaing the package in a baking oven and exposing it to heat for a sufficient period of time to bake or to cook the food product and generate steam to fill the space within the package, excess steam being allowed to escape through the vent opening, providing a source of sterile air free from viable mold spores, allowing said package to cool and inspire said sterile air through the vent opening as steam within said package condenses, the amount of sterile air inspired being in an amount sufficient to prevent the package from being crushed by the atmospheric pressure when the vapor condenses within the package, thereafter sealing the vent opening to completely seal the package to contain said condensed moisture generated during baking and the inspired sterile air whereby a package of bakery goods is provided which is free from mold for a period of 120 days storage at room temperature.
Claim 2
Dependent Claim 212 words
A process of baking foods in flexible containers comprising providing a flexible package that is a barrier to microorganisms and is capable of withstanding baking temperatures, placing the farinaceous food product in the package, sealing the package to provide a filled package, maintaining a vent opening in said flexible package to allow the escape of steam and gas during baking, plaing the package in a baking oven and exposing it to heat for a sufficient period of time to bake or to cook the food product and generate steam to fill the space within the package, excess steam being allowed to escape through the vent opening, providing a source of sterile air free from viable mold spores, allowing said package to cool and inspire said sterile air through the vent opening as steam within said package condenses, the amount of sterile air inspired being in an amount sufficient to prevent the package from being crushed by the atmospheric pressure when the vapor condenses within the package, thereafter sealing the vent opening to completely seal the package to contain said condensed moisture generated during baking and the inspired sterile air whereby a package of bakery goods is provided which is free from mold for a period of 120 days storage at room temperature.
Claim 3
Dependent Claim 20 words
The process of claim 1 wherein the bakery product is proofed after the package is filled and prior to baking.
Claim 4
Dependent Claim 53 words
The process of claim 1 wherein after the package is closed and after baking but prior to sealing the vent, the package is allowed to inspire said sterile air through the vent opening and the vent opening is thereafter hermetically sealed to provide a hermetically sealed package containing condensed steam and sterile air.
Claim 5
Dependent Claim 69 words
The process of claim 1 wherein the package is a tray having a peripheral flange, said food is placed in the tray and a cover sheet is applied to the flange and sealed thereto but prior to sealing the vent, the package is allowed in inspire sterile air through the vent opening and the vent opening is thereafter hermetically sealed to provide a hermetically sealed package containing sterile air.
Claim 6
Dependent Claim 65 words
The process of claim 1 wherein said package is a flexible sheet with a peripheral flange and a sheet of flexible packaging material is sealed to the flexible sheet around the entire peripheral flange except in a predetermined area where the sheets remain unsealed to one another to define said vent opening comprising the unsealed area between the flexible sheet and the flexible packaging material.
Claim 7
Dependent Claim 49 words
The process of claim 5 wherein after the package is closed and after baking but prior to sealing the vent the package is allowed to inspire sterile air through the vent opening and the vent opening is thereafter hermitically sealed to provide a hermetically sealed package containing sterile air.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1981-10-16 1982-04-17 1982-10-17 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1985-10-16 1986-04-17 1986-10-17 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1989-10-16 1990-04-17 1990-10-17 $7700.00 Window Closed / Lapsed

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