US3557774A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat storage dish
Assignee: Kreis AG
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Filing: 1969-04-04
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Granted: 1971-01-26
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Expires: 1989-04-04
Abstract
Abstract A heat storage dish is disclosed, such dish providing the advantages of not bursting apart as a result of excessive heating and increased interior pressure, and further complying with maximum hygienic requirements. The novel heat storage dish generally is constructed to have a heat storage plate disposed in the bottom thereof between an interior wall and an exterior wall forming an enclosed cavity or space. The novel storage dish is characterized by the feature that the heat storage plate is retained in position in such a manner that it abuts the interior wall of the dish and further defines an opening in the central area thereof. Both of the walls of the dish are connected to one another through the opening in the interior of the heat storage plate as well as on the outside or rim portion exterior of the plate. The bottom portion of the exterior wall of the heat storage dish has an annular deformable section which is upwardly displaced relative to the support plane of the dish itself, this section being delimited by two reinforced zones located between the walls within the interior and exterior points of connection.
Inventors
- 👤 Egon Kreis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 01:59
CPC Classifications
A; A47; A47G; A47G19/00; A47G19/02; A47G19/027; A47J; A47J41/00; A47J41/0038; A47J41/0044
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
90 words
A heat storage dish especially for food serving ware such as a plate, said heat storage dish comprising an interior wall and an exterior wall forming an enclosed cavity, a heat storage plate disposed between said interior wall and said exterior wall, said heat storage plate being provided with an opening, said interior and said exterior walls being joined together through said opening and at the exterior thereof relative to said heat storage plate, and means including one of said interior and exterior walls providing a deformable section for expansion.
Claim 2
Dependent Claim
90 words
A heat storage dish especially for food serving ware such as a plate, said heat storage dish comprising an interior wall and an exterior wall forming an enclosed cavity, a heat storage plate disposed between said interior wall and said exterior wall, said heat storage plate being provided with an opening, said interior and said exterior walls being joined together through said opening and at the exterior thereof relative to said heat storage plate, and means including one of said interior and exterior walls providing a deformable section for expansion.
Claim 3
Dependent Claim
148 words
A heat storage dish especially for food serving ware such as a plate, said heat storage dish comprising an interior wall and an exterior wall forming an enclosed space, a heat storage plate disposed between said interior wall and said exterior wall, said heat storage plate being maintained in position in abutting fashion against said interior wall, said heat storage plate having a central opening area, said interior wall and said exterior wall being connected to one another through said central opening area as well as on the outside thereof relative to said heat storage plate, said exterior wall displaying a bottom portion thereof having a circular, deformable section disposed at an elevation relative to the supporting plane of said heat storage dish, said deformable section being delimited by two reinforced zones disposed inside of the interior and exterior connecting points and between said interior and exterior walls.
Claim 4
Dependent Claim
148 words
A heat storage dish especially for food serving ware such as a plate, said heat storage dish comprising an interior wall and an exterior wall forming an enclosed space, a heat storage plate disposed between said interior wall and said exterior wall, said heat storage plate being maintained in position in abutting fashion against said interior wall, said heat storage plate having a central opening area, said interior wall and said exterior wall being connected to one another through said central opening area as well as on the outside thereof relative to said heat storage plate, said exterior wall displaying a bottom portion thereof having a circular, deformable section disposed at an elevation relative to the supporting plane of said heat storage dish, said deformable section being delimited by two reinforced zones disposed inside of the interior and exterior connecting points and between said interior and exterior walls.
Claim 5
Dependent Claim
51 words
A heat storage dish as defined in claim 2 wherein said deformable section is disposed in an essentially horizontal direction and is delimited at the outside thereof by a downwardly and outwardly slanting wall portion, said wall portion merging into a horizontally extending portion forming the supporting surface of said dish.
Claim 6
Dependent Claim
82 words
A heat storage dish as defined in claim 2 wherein said interior wall is provided with a bottom portion disposed in an essentially horizontal direction, said exterior wall, in the area of said central opening of said heat storage plate, defining a truncated cone section extending into said central opening, the upper end of said truncated cone section abutting said bottom portion of said interior wall, and means rigidly connecting said truncated cone section with said bottom portion of said interior wall.
Claim 7
Dependent Claim
29 words
A heat storage dish as defined in claim 4 wherein said truncated cone section has a base portion, said base portion defining the inside delimitation of said deformable section.
Claim 8
Dependent Claim
23 words
A heat storage dish as defined in claim 5 wherein said truncated cone section further has a horizontal step adjacent to its base.
Claim 9
Dependent Claim
50 words
A heat storage bowl as defined in claim 2 wherein said interior wall has a bottom portion, and wherein said bottom portions of both said interior and exterior walls merge into conically upwardly opening side portions converging towards one another, said side portions being rimmed together at their exterior ends.
Claim 10
Dependent Claim
79 words
A heat storage dish as defined in claim 2 further including a holding ring for said heat storage plate secured to the interior side of said exterior wall adjacent to the exterior delimitation of said heat storage plate, said holding ring extending freely to the inside and having an angular bend at its inside end, said angular bend abutting the bottom of said heat storage plate and providing a stop for the circumferential edge of said heat storage plate.
Claim 11
Dependent Claim
18 words
A heat storage dish as defined in claim 2 wherein said heat storage plate comprises an annular ring.
Claim 12
Dependent Claim
24 words
A heat storage dish as defined in claim 2 further including heat insulating material filled into the space between said interior and exterior walls.
Claim 13
Dependent Claim
41 words
A heat storage dish as defined in claim 10 wherein said deformable section is disposed at a distance directly beneath said heat storage plate, said deformabLe section having a base surface approximately of the same size as said heat storage plate.
Claim 14
Dependent Claim
26 words
A heat storage dish as defined in claim 2 wherein both said interior wall and said exterior wall consist of an essentially dish-shaped sheet metal piece.
References Cited (Backward Citations)
US2582735A
Cited
US2830576A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-25 | 1974-07-27 | 1975-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-25 | 1978-07-27 | 1979-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-25 | 1982-07-27 | 1983-01-26 | $7700.00 | Window Closed / Lapsed |