Patent US5038009A successfully refreshed from Google Patents.
US5038009A
Expired / Lapsed
US
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Printed microwave susceptor and packaging containing the susceptor
Assignee: Exopack Technology LLC
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Filing: 1989-11-17
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Granted: 1991-08-06
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Expires: 2009-11-17
Abstract
Abstract A susceptor for use in microwave heating and a method of manufacturing a susceptor for use in microwave heating are shown to include a substrate and a coating of electrically conductive particles applied to the substrate in a pattern that results in a distribution of microwave energy across the pattern so that burning or charring of the substrate is substantially prevented. The coating is an ink coating and the ink coating is applied to the substrate in a printing operation. The pattern is shown to include a plurality of subpatterns located within an effective heating area wherein the positioning of subpatterns is sufficient to radiate the desired heat without burning.
Inventors
- 👤 Robert J. Babbitt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:19
CPC Classifications
B; B32; B32B; B32B27/00; B32B27/06; A; A47; A47J; A47J36/00; A47J36/02; A47J36/04; B32B27/32; B32B29/00; B32B29/002; B32B29/005; B32B7/00; B32B7/04; B32B7/12; B65; B65D; B65D81/00; B65D81/34; B65D81/3446; B32B2255/00; B32B2255/12; B32B2264/00; B32B2264/10; B32B2264/107; B32B2264/108; B32B2323/00; B32B2323/04; B32B2439/00; B32B2439/70; B65D2581/00; B65D2581/34; B65D2581/3437; B65D2581/3439; B65D2581/344; B65D2581/3463; B65D2581/3464; B65D2581/3471; B65D2581/3483; B65D2581/3486; B65D2581/3494; Y; Y10; Y10S; Y10S99/00; Y10S99/14
Claims Analysis
Total Claims: 44
Claim 1
Independent Claim
53 words
A susceptor for use in microwave heating, comprising: a substrate; and a coating of electrically conductive carbon particles selectively applied only to predetermined areas of said substrate in a pattern having subpatterns in a spaced relationship adapted to distribute microwave energy across said pattern so as to substantially prevent burning of the substrate.
Claim 2
Dependent Claim
53 words
A susceptor for use in microwave heating, comprising: a substrate; and a coating of electrically conductive carbon particles selectively applied only to predetermined areas of said substrate in a pattern having subpatterns in a spaced relationship adapted to distribute microwave energy across said pattern so as to substantially prevent burning of the substrate.
Claim 3
Dependent Claim
13 words
The susceptor of claim 1, wherein said substrate is utilized as microwave packaging.
Claim 4
Dependent Claim
26 words
The susceptor of claim 1, wherein said coating is an ink coating and wherein said ink coating is applied to said substrate in a printing operation.
Claim 5
Dependent Claim
35 words
The susceptor of claim 1, wherein a plurality of said subpatterns are located within an effective heating area, the positioning of said subpatterns being sufficient to radiate the desired heat in said effective heating area.
Claim 6
Dependent Claim
11 words
The susceptor of claim 4, wherein said subpatterns are substantially identical.
Claim 7
Dependent Claim
13 words
The susceptor of claim 5, wherein each of said subpatterns comprises a square.
Claim 8
Dependent Claim
13 words
The susceptor of claim 5, wherein each of said subpatterns comprises a rectangle.
Claim 9
Dependent Claim
13 words
The susceptor of claim 5, wherein each of said subpatterns comprises a circle.
Claim 10
Dependent Claim
14 words
The susceptor of claim 5, wherein each of said subpatterns comprises an equilateral triangle.
Claim 11
Dependent Claim
14 words
The susceptor of claim 5, wherein each of said subpatterns comprises a right triangle.
Claim 12
Dependent Claim
16 words
The susceptor of claim 5, wherein each of said subpatterns comprises a circle within a ring.
Claim 13
Dependent Claim
16 words
The susceptor of claim 5, wherein each of said subpatterns comprises a circle within a horseshoe.
Claim 14
Dependent Claim
13 words
The susceptor of claim 5, wherein each of said subpatterns comprises a stripe.
Claim 15
Dependent Claim
11 words
The susceptor of claim 4, wherein said pattern comprises a bulls-eye.
Claim 16
Dependent Claim
10 words
The susceptor of claim 14, further comprising arcuate shaped stripes.
Claim 17
Dependent Claim
21 words
The susceptor of claim 14, wherein said bulls-eye comprises a number of rings and wherein said rings are generally rectangular shaped.
Claim 18
Dependent Claim
20 words
The susceptor of claim 1, wherein said subpatterns are adapted to distribute said microwave energy substantially evenly across said pattern.
Claim 19
Dependent Claim
47 words
The susceptor of claim 1, wherein said coating is an ink composition comprising said electrically conductive carbon particles and a vehicle in which said electrically conductive carbon particles are generally uniformly suspended, said vehicle having a viscosity so that said ink composition can be utilized in printing.
Claim 20
Dependent Claim
23 words
The susceptor of claim 18, wherein said electrically conductive carbon particles are selected from the group consisting of carbon and carbon based blacks.
Claim 21
Dependent Claim
13 words
The susceptor of claim 19, wherein said electrically conductive carbon particles are graphite.
Claim 22
Dependent Claim
20 words
The susceptor of claim 20, wherein said graphite has a particle size in the range from 7 to 10 μm.
Claim 23
Dependent Claim
15 words
The susceptor of claim 18, wherein said vehicle comprises a binder and a defoaming agent.
Claim 24
Independent Claim
71 words
A method of manufacturing a susceptor for use in microwave heating, comprising the steps of: providing a substrate; providing a coating composition comprising a suspension of electrically conductive carbon particles; and selectively printing a pattern only on predetermined areas of said substrate with said coating composition, said pattern having subpatterns in a spaced relationship adapted to distribute microwave energy across said pattern so as to substantially prevent burning of the substrate.
Claim 25
Independent Claim
71 words
A method of manufacturing a susceptor for use in microwave heating, comprising the steps of: providing a substrate; providing a coating composition comprising a suspension of electrically conductive carbon particles; and selectively printing a pattern only on predetermined areas of said substrate with said coating composition, said pattern having subpatterns in a spaced relationship adapted to distribute microwave energy across said pattern so as to substantially prevent burning of the substrate.
Claim 26
Dependent Claim
35 words
The method of claim 23, wherein a plurality of said subpatterns are located within an effective heating area, the positioning of said subpatterns being sufficient to radiate the desired heat in said effective heating area.
Claim 27
Independent Claim
93 words
A method of heating an article in a microwave oven, comprising the steps of: confronting at least a surface portion of the article to be heated with a susceptor, said susceptor comprising a substrate and an ink coating selectively applied only to predetermined areas of said substrate in a pattern, said ink coating comprising electrically conductive carbon particles and said pattern having subpatterns in a spaced relationship adapted to distribute microwave energy across said pattern so as to substantially prevent burning of the substrate; and subjecting said article and susceptor to microwave radiation.
Claim 28
Independent Claim
93 words
A method of heating an article in a microwave oven, comprising the steps of: confronting at least a surface portion of the article to be heated with a susceptor, said susceptor comprising a substrate and an ink coating selectively applied only to predetermined areas of said substrate in a pattern, said ink coating comprising electrically conductive carbon particles and said pattern having subpatterns in a spaced relationship adapted to distribute microwave energy across said pattern so as to substantially prevent burning of the substrate; and subjecting said article and susceptor to microwave radiation.
Claim 29
Independent Claim
82 words
A method of manufacturing a susceptor for use in microwave heating, comprising the steps of: mixing carbon based black particles with a vehicle to form a susceptor ink; selectively applying said susceptor ink only to predetermined areas of a substrate by printing a pattern on said substrate, said pattern having subpatterns in a spaced relationship adapted to distribute microwave energy across said pattern so as to substantially prevent burning of the substrate; and drying said susceptor ink after application to said substrate.
Claim 30
Independent Claim
82 words
A method of manufacturing a susceptor for use in microwave heating, comprising the steps of: mixing carbon based black particles with a vehicle to form a susceptor ink; selectively applying said susceptor ink only to predetermined areas of a substrate by printing a pattern on said substrate, said pattern having subpatterns in a spaced relationship adapted to distribute microwave energy across said pattern so as to substantially prevent burning of the substrate; and drying said susceptor ink after application to said substrate.
Claim 31
Dependent Claim
74 words
A susceptor for use in microwave heating, comprising: a first layer; a printed coating of electrically conductive carbon particles selectively applied only to predetermined areas of said first layer so as to form a pattern having subpatterns in a spaced relationship adapted to distribute microwave energy across said pattern so as to substantially prevent burning of the substrate; and a second layer adhered to said first layer so as to cover said printed coating.
Claim 32
Dependent Claim
74 words
A susceptor for use in microwave heating, comprising: a first layer; a printed coating of electrically conductive carbon particles selectively applied only to predetermined areas of said first layer so as to form a pattern having subpatterns in a spaced relationship adapted to distribute microwave energy across said pattern so as to substantially prevent burning of the substrate; and a second layer adhered to said first layer so as to cover said printed coating.
Claim 33
Dependent Claim
65 words
A bag for use in microwave packaging, comprising: a substrate which has been formed into a bag structure; and a printed coating of electrically conductive carbon particles selectively applied only to predetermined areas of said substrate so as to form a pattern having subpatterns in a spaced relationship adapted to distribute microwave energy across said pattern so as to substantially prevent burning of the substrate.
Claim 34
Dependent Claim
65 words
A bag for use in microwave packaging, comprising: a substrate which has been formed into a bag structure; and a printed coating of electrically conductive carbon particles selectively applied only to predetermined areas of said substrate so as to form a pattern having subpatterns in a spaced relationship adapted to distribute microwave energy across said pattern so as to substantially prevent burning of the substrate.
Claim 35
Dependent Claim
23 words
The bag of claim 28, wherein said bag structure includes side walls and said coating is positioned on one of said side walls.
Claim 36
Dependent Claim
15 words
The bag of claim 28, wherein said bag structure comprises a self opening style bottom.
Claim 37
Dependent Claim
14 words
The bag of claim 28, wherein said bag structure comprises a pillow style bag.
Claim 38
Dependent Claim
77 words
A package for use in microwave heating, comprising: a container formed from material which is substantially transparent to microwave energy; and a susceptor, positioned within said container, comprising a substrate and a printed coating of electrically conductive carbon particles selectively applied only to predetermined areas of said substrate so as to form a pattern having subpatterns in a spaced relationship adapted to distribute microwave energy across said pattern so as to substantially prevent burning of the substrate.
Claim 39
Dependent Claim
77 words
A package for use in microwave heating, comprising: a container formed from material which is substantially transparent to microwave energy; and a susceptor, positioned within said container, comprising a substrate and a printed coating of electrically conductive carbon particles selectively applied only to predetermined areas of said substrate so as to form a pattern having subpatterns in a spaced relationship adapted to distribute microwave energy across said pattern so as to substantially prevent burning of the substrate.
Claim 40
Dependent Claim
14 words
The package of claim 32, wherein said substrate is integrally formed in said container.
Claim 41
Dependent Claim
11 words
The package of claim 33, wherein said container is a box.
Claim 42
Dependent Claim
16 words
The package of claim 33, wherein said container is a tray having a number of wells.
Claim 43
Dependent Claim
17 words
The package of claim 35, wherein said susceptor is printed on at least one of said wells.
Claim 44
Dependent Claim
33 words
The package of claim 35, wherein a first susceptor having a first density is printed in a first well and a second susceptor having a second density is printed in a second well.
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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) | 1994-08-05 | 1995-02-04 | 1995-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-08-05 | 1999-02-04 | 1999-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-08-05 | 2003-02-04 | 2003-08-06 | $7700.00 | Window Closed / Lapsed |