US3679869A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Warmer stand for a select number of fluid containers
Assignee: CHEMEX CORP
•
Filing: 1971-01-11
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Granted: 1972-07-25
•
Expires: 1991-01-11
Abstract
Abstract A beverage warmer is provided which has a surface element for supporting a fluid container or vessel thereon and for transferring heat directed thereto by a heating element to the fluid container. The beverage warmer also has an annular upwardly projecting member contiguous with the surface element for reducing the amount of heat loss to the surrounding atmosphere.
Inventors
- 👤 Richard A Keeler
- 👤 Arthur Eckstein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:19
CPC Classifications
A; A47; A47J; A47J31/00; A47J31/44; A47J31/4403; A47J31/441; A47J31/4425; A47J31/4432; A47J31/4435; A47J31/4439
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
116 words
A beverage warmer comprising support means for supporting a fluid container including planar conducting plate means for transferring heat directed thereto to a fluid container placed on said plate means, said plate means including a plurality of recess means for receiving the downwardly projecting ridges of any of a select number of fluid containers having ridges at locations progressively radially inwardly and with sizes decreasing radially inwardly as the size of the fluid container decreases, electrical heat source means secured to said support means proximate to the bottom surface of said plate means, and feet means secured to said support means for elevating said supporting means above the surface upon which said beverage warmer is placed.
Claim 2
Dependent Claim
116 words
A beverage warmer comprising support means for supporting a fluid container including planar conducting plate means for transferring heat directed thereto to a fluid container placed on said plate means, said plate means including a plurality of recess means for receiving the downwardly projecting ridges of any of a select number of fluid containers having ridges at locations progressively radially inwardly and with sizes decreasing radially inwardly as the size of the fluid container decreases, electrical heat source means secured to said support means proximate to the bottom surface of said plate means, and feet means secured to said support means for elevating said supporting means above the surface upon which said beverage warmer is placed.
Claim 3
Dependent Claim
66 words
A beverage warmer according to claim 1, wherein said recess means are in the form of keystones selectively sized to receive the downwardly projecting ridges of any of a selected number of fluid containers wherein the ridgEs thereof extend circumferentially in spaced relation about the base of the container and wherein the circumferential length of the ridges decreases as the size of the fluid container decreases.
Claim 4
Dependent Claim
43 words
A beverage warmer according to claim 1 wherein said recesses are selectively configured to substantially prevent the planar displacement of any one of the selected number of fluid containers placed on said planar conducting means with the ridges thereof inserted into said recesses.
Claim 5
Dependent Claim
44 words
A beverage warmer according to claim 1, further comprising an upwardly projecting outwardly confining annular member, comprised of thermally insulating material contiguous with said plate means for reducing heat loss from said plate means to the atmosphere when a fluid container is placed thereon.
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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) | 1975-07-25 | 1976-01-24 | 1976-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-25 | 1980-01-24 | 1980-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-25 | 1984-01-24 | 1984-07-25 | $7700.00 | Window Closed / Lapsed |