Patent GB2118918A successfully refreshed from Google Patents.
GB2118918A
Expired / Lapsed
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Glass containers suitable for microwave heating
Assignee: Thatcher Glass Corp
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Filing: 1983-03-25
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Granted: —
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Expires: 2003-03-25
Abstract
Abstract A glass container (66) suitable for microwave heating has an annular sidewall (70), a bearing surface (72), and a bottom (76) raised to form an upwardly-extending, arcuate center portion. Preferably, the container is a jar of capacity of between 177 cc. and 946 cc., and has a ratio between the diameter of and the maximum lift at the center portion of between 5:1 and 12:1. The bottom of the container may be knurled or stippled, and may be provided with a formation (74) to facilitate stacking. <IMAGE>
Inventors
- 👤 Richard Gary Shapiro
- 👤 John Fredrick Bayne
Bibliographic Details
Application Number
—
Jurisdiction
GB
Data Source
google_patents
Last Synchronized
2026-11-03 18:01
CPC Classifications
B; B65; B65D; B65D1/00; B65D1/10; B65D81/00; B65D81/34; B65D81/3446; B65D81/3453
Claims Analysis
Total Claims: 32
Claim 1
Independent Claim
46 words
A glass container suitable for microwave heating, the container having generally annular sidewalls and a bottom joined to the sidewalls, said bottom having a raised generally arcuate center portion extending upwardly between said sidewalls and a bearing surface on the lower peripheral portion of said bottom.
Claim 2
Dependent Claim
46 words
A glass container suitable for microwave heating, the container having generally annular sidewalls and a bottom joined to the sidewalls, said bottom having a raised generally arcuate center portion extending upwardly between said sidewalls and a bearing surface on the lower peripheral portion of said bottom.
Claim 3
Dependent Claim
52 words
A container according to claim 1, wherein said center portion extends upward by an amount such that the ratio between the diameter of the arcuate center portion and the amount of the rise above the plane of the peripheral portions of said arcuate center portion is between about 25:1 and about 3:1.
Claim 4
Dependent Claim
14 words
A container according to claim 2, wherein the ratios are between 5:1 and 12:1.
Claim 5
Dependent Claim
14 words
A container according to claim 3, wherein said ratios are between 6:1 and 9:1.
Claim 6
Dependent Claim
39 words
A container according to any preceding claim, wherein the thickness of the sidewalls is between about 50 and 1 50 mil (0.127 and 0.38 cm) and said container holds between 6 and 32 fluid oz. (177 and 946 cc).
Claim 7
Dependent Claim
35 words
A container according to any preceding claim, wherein said sidewalls have a thickness of between 70 and 120 mil (0.18 and 0.30 cm), and the container has a diameter of about five inches (12.7 cm).
Claim 8
Dependent Claim
25 words
A container according to any one of claims 1 to 5, wherein the diameter thereof is between two and five inches (5.1 and 12.7 mm).
Claim 9
Dependent Claim
18 words
A container according to any preceding claim, wherein at least a portion of said bottom portion is knurled.
Claim 10
Dependent Claim
23 words
A container according to any preceding claim, wherein the included angle of the generally arcuate raised center portion is between 80 and 1350.
Claim 11
Dependent Claim
19 words
A container according to claim 9, wherein said arcuate center portion has an included angle of 380 and 870.
Claim 12
Dependent Claim
21 words
A container according to claim 10, wherein the included angle of the generally arcuate center portion is between 50 and 750.
Claim 13
Dependent Claim
24 words
A container according to any preceding claim, wherein the thickness of said bottom is between 120 mils and 180 mils (0.3 and 0.46 cms).
Claim 14
Independent Claim
39 words
A method of heating comprising providing a container having an upwardly extending generally arcuate curved bottom, placing material to be heated into said container, placing said container in a microwave device and activating said device to heat said material.
Claim 15
Independent Claim
39 words
A method of heating comprising providing a container having an upwardly extending generally arcuate curved bottom, placing material to be heated into said container, placing said container in a microwave device and activating said device to heat said material.
Claim 16
Dependent Claim
52 words
A method according to claim 13, wherein the center portion of said bottom extends upward by an amount such that the ratio between the diameter of said upwardly extending arcuate portion and the amount of the rise above the plane of the peripheral of the arcuate portion is between 25:1 and 3:1.
Claim 17
Dependent Claim
14 words
A method according to claim 14 wherein the ratios are between 5:1 and 12:1.
Claim 18
Dependent Claim
16 words
1 6. A method according to claim 15, wherein the ratios are between 6:1 and 9:1.
Claim 19
Dependent Claim
47 words
A method according to claim 13, 14, 1 5 or 16, wherein the thickness of the sidewalls is between 150 and 120 thousandths of an inch (0.127 and 0.38 ccs) and the container has a capacity of between 6 oz. (177 cc) and 32 oz. (946 cc).
Claim 20
Dependent Claim
43 words
1 8. A method according to any one of claims 13 to 1 7, wherein said sidewalls have a thickness of between 70 and 120 mil (0.18 and 0.30 cm) inch, and the container has a diameter of about five inches (12.7 cms).
Claim 21
Dependent Claim
30 words
1 9. A method according to any one of claims 1 3 to 17, wherein said container has a diameter of between two and five inches, (5.1 and 12.7 cms).
Claim 22
Independent Claim
18 words
A method according to any one of claims 1 3 to 19, wherein said bottom portion is knurled.
Claim 23
Independent Claim
26 words
A method according to any one of claims 13 to 20, wherein the included angle of the generally arcuate center portion is between 80 and 1350.
Claim 24
Dependent Claim
21 words
A container according to claim 21 , wherein said arcuate center portion has an included angle of between 380 and 870.
Claim 25
Dependent Claim
21 words
A container according to claim 22, wherein the included angle of said generally arcuate center portion is between 500 and 750.
Claim 26
Dependent Claim
28 words
A container according to any one of claims 1 3 to 23, wherein said bottom thickness is between 120 mils and 1 80 mils (0.3 and 0.46 cms).
Claim 27
Independent Claim
115 words
A method of microwave heating of materials comprising providing a container having an upwardly extending generally arcuate curved bottom portion, placing material to be heated into said container, placing said container in microwave device and activating said microwave device to heat said material, wherein said container is a jar holding between 6 oz. and 32 oz. (177 and 946 cc), the ratio between the diameter of said arcuate curved bottom portion and the height of the highest portion of the bottom above the plane joining the peripheral portion of the arcuate bottom portion is between 6:1 and 9:1 and the wall thickness of the container is between 70 and 120 mil (0.18 and 0.30 ccs).
Claim 28
Independent Claim
115 words
A method of microwave heating of materials comprising providing a container having an upwardly extending generally arcuate curved bottom portion, placing material to be heated into said container, placing said container in microwave device and activating said microwave device to heat said material, wherein said container is a jar holding between 6 oz. and 32 oz. (177 and 946 cc), the ratio between the diameter of said arcuate curved bottom portion and the height of the highest portion of the bottom above the plane joining the peripheral portion of the arcuate bottom portion is between 6:1 and 9:1 and the wall thickness of the container is between 70 and 120 mil (0.18 and 0.30 ccs).
Claim 29
Independent Claim
16 words
A method of microwave heating materials substantially as herein described with reference to the accompanying drawings.
Claim 30
Independent Claim
16 words
A method of microwave heating materials substantially as herein described with reference to the accompanying drawings.
Claim 31
Dependent Claim
37 words
A glass container suitable for microwave heating of its contents, such container being constructed and arranged substantially as herein described with reference to and as illustrated in
Figures 2 to 5 and 7 of the accompanying drawings.
Claim 32
Dependent Claim
37 words
A glass container suitable for microwave heating of its contents, such container being constructed and arranged substantially as herein described with reference to and as illustrated in
Figures 2 to 5 and 7 of the accompanying drawings.
References Cited (Backward Citations)
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