US4539899A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vessel for cooking food with cooling lid
Assignee: HAUT FOURNEAU ET FONDERIES DE COUSANCES AUX FORGES SA COUSANCES LS FORGES 55170 ANCERVILLE (MEUSE) FRANCE
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Filing: 1981-09-23
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Granted: 1985-09-10
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Expires: 2001-09-23
Abstract
Abstract A vessel according to the invention is intended for cooking food and comprises a body 1 and a lid 2 provided with a cavity 4 to receive water (A). The cavity is disposed in annular form around an elevated portion 5. The internal surface 6 of the lid 2 is substantially arch-shaped, which shape tends to engage the internal walls 7 of the body 1. Thus, the vapor condenses in the center and the droplets flow on the surface 6 so as to fall only on the periphery or flow along the walls 7 so that they do not fall directly on the food B.
Inventors
- 👤 Paul Schmitt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:29
CPC Classifications
A; A47; A47J; A47J36/00; A47J36/06
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
181 words
A vessel for cooking food, of the type comprising a hollow body having sidewalls extending upwardly from a bottom wall, said sidewalls having an internal surface and a removable lid with internal and external surfaces which may be placed on the sidewalls of said hollow body, said removable lid having a convex and elevated central portion and having on its external surface a cavity for receiving water between a rim about the periphery thereof which cavity is annular and disposed around said convex and elevated central portion of said lid, the top of which is substantially level with the peripheral rim of the cavity so that the depth of the water increases from the center of the lid to the periphery thereof, and wherein at least the central portion of the internal surface of the lid is substantially dome-shaped and the periphery of the internal surface of said lid terminates at and merges with the sidewalls of said hollow body at a point where the internal surface of said sidewalls terminate and which is substantially at the top of said sidewalls.
Claim 2
Dependent Claim
181 words
A vessel for cooking food, of the type comprising a hollow body having sidewalls extending upwardly from a bottom wall, said sidewalls having an internal surface and a removable lid with internal and external surfaces which may be placed on the sidewalls of said hollow body, said removable lid having a convex and elevated central portion and having on its external surface a cavity for receiving water between a rim about the periphery thereof which cavity is annular and disposed around said convex and elevated central portion of said lid, the top of which is substantially level with the peripheral rim of the cavity so that the depth of the water increases from the center of the lid to the periphery thereof, and wherein at least the central portion of the internal surface of the lid is substantially dome-shaped and the periphery of the internal surface of said lid terminates at and merges with the sidewalls of said hollow body at a point where the internal surface of said sidewalls terminate and which is substantially at the top of said sidewalls.
Claim 3
Dependent Claim
32 words
Vessel according to claim 1, wherein the external surface of the lid is inclined uniformly and continuously from its top, positioned in the central zone, to its base, positioned at the periphery.
Claim 4
Dependent Claim
19 words
Vessel according to claim 1, wherein the internal surface of the lid comprises a flat zone inside the periphery.
Claim 5
Dependent Claim
53 words
A vessel according to claim 1, wherein the internal surface of the lid is provided with embossments having a form and being disposed so as to favor the radial flow of condensed vapors from the central portion toward said periphery of said internal surface of said lid to enhance cooling of said vapors.
Claim 6
Dependent Claim
11 words
A vessel according to claim 4, wherein the embossments extend radially.
Claim 7
Dependent Claim
22 words
A vessel according to claim 5 wherein the embossments extend about the periphery of said lid, but not to their common center.
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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) | 1988-09-09 | 1989-03-11 | 1989-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-09-09 | 1993-03-11 | 1993-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-09-09 | 1997-03-11 | 1997-09-10 | $7700.00 | Window Closed / Lapsed |