US4823683A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Popcorn popper
Assignee: Packaging Corp of America
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Filing: 1988-02-09
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Granted: 1989-04-25
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Expires: 2008-02-09
Abstract
Abstract A popcorn popper is provided for use in a microwave oven. The popper includes a bowl-like receptacle, and a cover therefor removably mounted on the upper end of the receptacle. Both the receptacle and cover are formed of a material which is transparent to microwave energy. The receptacle is provided with a bottom section and an upright wall section. The bottom section includes an interior first surface area which tapers downwardly and inwardly from a lower portion of the wall section, and an interior second surface area which is spaced inwardly from the wall section. The second surface area has a recessed trough-like configuration with at least one elongated narrow base portion, diverging side walls extending upwardly from opposite side edges of the base portion and at least one inclined end wall which extends upwardly and outwardly from the base portion towards the wall section. When a predetermined amount of unpopped popcorn kernels is initially deposited in the receptacle, the kernels thereof will be accommodated in and uniformly distributed throughout the second surface area and form an elongated strip-like formation having a relatively narrow cross-section. A substantial number of kernels defining an upper surface of the formation and in direct contact with the side and end walls are readily exposed to the rays of microwave energy generated in the microwave oven and thus, quickly reach popping temperature.
Inventors
- 👤 Edward H. Meisner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:09
CPC Classifications
A; A47; A47J; A47J36/00; A47J36/02; A47J36/027; A23; A23L; A23L7/00; A23L7/10; A23L7/161; A23L7/174; A23L7/183; A23L7/187
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
143 words
A popcorn popper for use in a microwave oven, comprising a receptacle of a relatively stiff material transparent to microwave energy, said receptacle including a bottom section and an integral upstanding wall section; and means overlying an upper end portion of the receptacle for retaining popped and unpopped popcorn kernels within the receptacle when the latter is exposed to microwave energy; said receptacle bottom section having a downwardly and inwardly tapered interior first surface area connected to a lower portion of the wall section and an interior second surface area integral with said first surface area and spaced inwardly from said wall section, said second surface area being provided with trough-like means having a substantially uniform width and length greater than width for initially accommodating a predetermined volume of unpopped kernels and arranging same in at least one elongated relatively narrow strip-like formation.
Claim 2
Dependent Claim
143 words
A popcorn popper for use in a microwave oven, comprising a receptacle of a relatively stiff material transparent to microwave energy, said receptacle including a bottom section and an integral upstanding wall section; and means overlying an upper end portion of the receptacle for retaining popped and unpopped popcorn kernels within the receptacle when the latter is exposed to microwave energy; said receptacle bottom section having a downwardly and inwardly tapered interior first surface area connected to a lower portion of the wall section and an interior second surface area integral with said first surface area and spaced inwardly from said wall section, said second surface area being provided with trough-like means having a substantially uniform width and length greater than width for initially accommodating a predetermined volume of unpopped kernels and arranging same in at least one elongated relatively narrow strip-like formation.
Claim 3
Dependent Claim
38 words
The popper of claim 1 wherein the trough-like means includes a plurality of elongated segments extending substantially radially from a substantially centrally disposed location in the bottom section and terminating proximate the lower portion of the wall section.
Claim 4
Dependent Claim
41 words
The popper of claim 1 wherein the means for retaining popped and unpopped popcorn kernels within the receptacle includes a perforated lid removably mounted on the receptacle upper end portion; said lid being formed of a material transparent to microwave energy.
Claim 5
Dependent Claim
176 words
A popcorn popper for use in a microwave oven, comprising a receptacle of a relatively stiff material transparent to microwave energy, said receptacle including a bottom section and an upstanding wall section; and means overlying an upper end portion of the receptacle for retaining popped and unpopped popcorn kernels within the receptacle when the latter is exposed to microwve energy; said receptacle bottom section having a downwardly and inwardly tapered interior first surface area connected to a lower portion of the wall section and an interior second surface area integral with said first surface area and spaced inwardly from said wall section, said second surface area being provided with a trough-like means having substantially greater length than width for initially accommodating apredetermined volume of unpopped kernels and arranging same in at least one elongated relatively narrow strip-like formation; said trough-like means including an elongated narrow base portion to subtend and supportingly engage a plurality of unpopped kernels, and upwardly directing side and end walls, the latter having upper end edges integral with said interior first surface.
Claim 6
Dependent Claim
176 words
A popcorn popper for use in a microwave oven, comprising a receptacle of a relatively stiff material transparent to microwave energy, said receptacle including a bottom section and an upstanding wall section; and means overlying an upper end portion of the receptacle for retaining popped and unpopped popcorn kernels within the receptacle when the latter is exposed to microwve energy; said receptacle bottom section having a downwardly and inwardly tapered interior first surface area connected to a lower portion of the wall section and an interior second surface area integral with said first surface area and spaced inwardly from said wall section, said second surface area being provided with a trough-like means having substantially greater length than width for initially accommodating apredetermined volume of unpopped kernels and arranging same in at least one elongated relatively narrow strip-like formation; said trough-like means including an elongated narrow base portion to subtend and supportingly engage a plurality of unpopped kernels, and upwardly directing side and end walls, the latter having upper end edges integral with said interior first surface.
Claim 7
Dependent Claim
48 words
The popper of claim 4 wherein the trough-like means includes a plurality of interconnected elongated segments extending from a substantially centrally disposed location in the bottom towards the wall section, each segment having a narrow base portion; the base portions of said segments being in substantially coplanar relation.
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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) | 1992-04-24 | 1992-10-24 | 1993-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-04-24 | 1996-10-24 | 1997-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-04-24 | 2000-10-24 | 2001-04-25 | $7700.00 | Window Closed / Lapsed |