Patent US1129084A successfully refreshed from Google Patents.
US3814901A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Steam heating device
Assignee: Cleveland Range LLC
•
Filing: 1973-05-07
•
Granted: 1974-06-04
•
Expires: 1993-05-07
Abstract
Abstract A steam heating device in which a compartment is provided closed on the top by a tiltable cover or lid. A member forming the lower side of the compartment has apertures therein and a steam generating means is provided underneath the member forming the lower side of the compartment for the supply of steam through the apertures thereof into the compartment to heat foodstuffs and the like that are placed in the compartment and enclosed by lowering the lid or cover thereover.
Inventors
- 👤 G Morhack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:22
CPC Classifications
F; F22; F22B; F22B1/00; F22B1/28; F22B1/287; A; A47; A47J; A47J27/00; A47J27/04; F24; F24C; F24C7/00; F24C7/006
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
200 words
A steam heating device for heating foodstuff; a frame, a horizontal first plate in the top of the frame and a cover pivotally mounted on top of the frame, said first plate and cover forming therebetween a compartment for receiving foodstuff to be heated, a heater plate beneath said first plate and having electrically insulated electric heating means therein, a cover plate beneath the heater plate, means securing said plates together in peripherally sealed relation, first chamber means formed between said cover plate and heater plate, second chamber means formed between said heater plate and said first plate, holes in said heater plate leading from said first chamber means to said second chamber means and holes in said first plate leading from said second chamber means to said compartment, nozzle means mounted in said cover plate for the introduction of water into said first chamber means, a conduit having one end connected to said nozzle means and at the other end adapted for connection to a source of water under pressure, normally closed valve means in said conduit, and electrically operated control means operable automatically for periodically aCtuating said valve means into open position for a predetermined period of time.
Claim 2
Dependent Claim
200 words
A steam heating device for heating foodstuff; a frame, a horizontal first plate in the top of the frame and a cover pivotally mounted on top of the frame, said first plate and cover forming therebetween a compartment for receiving foodstuff to be heated, a heater plate beneath said first plate and having electrically insulated electric heating means therein, a cover plate beneath the heater plate, means securing said plates together in peripherally sealed relation, first chamber means formed between said cover plate and heater plate, second chamber means formed between said heater plate and said first plate, holes in said heater plate leading from said first chamber means to said second chamber means and holes in said first plate leading from said second chamber means to said compartment, nozzle means mounted in said cover plate for the introduction of water into said first chamber means, a conduit having one end connected to said nozzle means and at the other end adapted for connection to a source of water under pressure, normally closed valve means in said conduit, and electrically operated control means operable automatically for periodically aCtuating said valve means into open position for a predetermined period of time.
Claim 3
Dependent Claim
29 words
The device according to claim 1 in which means is provided for supplying electrical energy to said control means during the period of energization of said electric heating means.
Claim 4
Dependent Claim
34 words
The device according to claim 1 which includes filter means in said conduit through which the water passes operable to treat the water to reduce the solids precipitated therefrom when the water is heated.
Claim 5
Dependent Claim
17 words
The device according to claim 1 in which said nozzle means is formed of a nonmetallic material.
Claim 6
Dependent Claim
20 words
The device according to claim 4 in which said material is selected from the class of fluorocarbons which includes polytetrafluoroethylene.
Claim 7
Dependent Claim
53 words
The device according to claim 1 which includes a baffle plate clamped between the bottom of said first plate and the top of said heater plate and dividing said second chamber means into upper and lower chamber portions, and check valve means interconnecting said chamber portions and opening toward the upper one thereof.
Claim 8
Dependent Claim
58 words
The device according to claim 6 in which said baffle plate has a hole near one edge thereof, a downwardly opening recess in said first plate into which said hole opens at the top, a passage from said recess to said upper chamber portion, and a ball in said recess engageable with the upper end of said hole.
Claim 9
Dependent Claim
50 words
The device according to claim 1 in which the upper side of said first plate is recessed, and a tray having a peripheral flange engaging the top of said first plate around said recess and having a perforated bottom wall parallel to the upwardly facing bottom wall of said recess.
Claim 10
Dependent Claim
34 words
The device according to claim 1 which includes solenoid means energizable for opening said valve means, said control means including time controlled means operable to effect energization of said solenoid means at periodic intervals.
Claim 11
Dependent Claim
50 words
The device according to claim 1 in which said nozzle means is directed angularly upwardly toward the bottom of said heater plate and comprises a small outlet opening whereby water supplied to said conduit by said nozzle means is broken up into droplets and impinges directly on said heater plate.
Claim 12
Dependent Claim
55 words
The device according to claim 1 which includes filter means in said conduit through which the water passes operable to treat the water to reduce the solids precipitated therefrom when the water is heated, said filter means comprising magnetic field means through which the water flows, said nozzle means being formed of a nonmetallic material.
Claim 13
Dependent Claim
53 words
The device according to claim 1 which includes filter means in said conduit through which the water passes operable to treat the water to reduce the solids precipitated therefrom when the water is heated, said filter means comprising magnetic field means through which the water flows, said nozzle means being formed of polytetrafluoroethylene.
References Cited (Backward Citations)
US2674935A
Cited
US2719211A
Cited
US2980099A
Cited
US2973705A
Cited
US3500818A
Cited
US3604895A
Cited
US3732396A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-06-03 | 1977-12-03 | 1978-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-03 | 1981-12-03 | 1982-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-03 | 1985-12-03 | 1986-06-04 | $7700.00 | Window Closed / Lapsed |