Patent US2584451A successfully refreshed from Google Patents.
US3786232A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for the charging and discharging of storage heaters
Assignee: Individual
•
Filing: 1973-02-26
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Granted: 1974-01-15
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Expires: 1993-02-26
Abstract
Abstract A storage heater includes a thermally insulated double walled casing having a closed top portion surrounding a heat storage element provided with vertical air passages. The casing bottom has an air inlet and outlet whereby heated air may be circulated through the passages to heat the storage element in a first mode of operation and whereby room air can be likewise circulated to withdraw heat therefrom in a second mode of operation. A blower, positioned in a compartment having an air inlet and outlet and located beneath the casing, has its suction side in communication with the casing outlet. A pivotal flap valve near the delivery zone of the blower establishes a closed air circulation circuit through the air inlet, casing, air outlet, blower and compartment during the first mode of operation and diverts circulated air outwardly of the compartment to the exterior thereof during the second mode of operation. An electric heater is located in the compartment adjacent the delivery zone of the blower to heat the circulated air during the first mode of operation.
Inventors
- 👤 N Laing
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 06:17
CPC Classifications
F; F28; F28D; F28D20/00; F28D20/02; C; C09; C09K; C09K5/00; F24; F24H; F24H7/00; F24H7/02; F24H7/04; F24H7/0408; F24H7/0416; Y; Y02; Y02E; Y02E60/00; Y02E60/14
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
209 words
A storage heater comprising an insulated casing having a closed top portion, a heat storage element in said casing having a plurality of vertically extending air passages therein, a heat storage mass in said element having a phase conversion point at a conversion temperature above a predetermined discharge temperature of the device, air inlet means in the bottom of said casing, air outlet means in the bottom of said casing, a blower compartment beneath the bottom of said casing with said air inlet and air outlet means opening into said compartment, blower means in said compartment having a suction zone in communication with said outlet means and a delivery zone adapted to be in communication with said inlet means where said blower means is adapted to induce flow of air in said casing from said inlet means to said outlet means and through said compartment, heater means in said compartment in the path of air flow, and a valve for diverting flow of air from said compartment to the exterior thereof when said valve is in the open position and for allowing air to flow from said outlet to said inlet when in the retracted position to form a closed circuit of air flow in said casing and compartment.
Claim 2
Dependent Claim
209 words
A storage heater comprising an insulated casing having a closed top portion, a heat storage element in said casing having a plurality of vertically extending air passages therein, a heat storage mass in said element having a phase conversion point at a conversion temperature above a predetermined discharge temperature of the device, air inlet means in the bottom of said casing, air outlet means in the bottom of said casing, a blower compartment beneath the bottom of said casing with said air inlet and air outlet means opening into said compartment, blower means in said compartment having a suction zone in communication with said outlet means and a delivery zone adapted to be in communication with said inlet means where said blower means is adapted to induce flow of air in said casing from said inlet means to said outlet means and through said compartment, heater means in said compartment in the path of air flow, and a valve for diverting flow of air from said compartment to the exterior thereof when said valve is in the open position and for allowing air to flow from said outlet to said inlet when in the retracted position to form a closed circuit of air flow in said casing and compartment.
Claim 3
Dependent Claim
26 words
A storage heater according to claim 1 wherein said heater means is positioned in the path of air flow between said blower and said inlet means.
Claim 4
Dependent Claim
29 words
A storage heater according to claim 2 wherein said valve is positioned in the path of air flow in the compartment between said heater means and said inlet means.
Claim 5
Dependent Claim
32 words
A storage heater according to claim 1 wherein said element comprises a plurality of vertically extending cylinders of different axial lengths and wherein the spaces between adjacent cylinders form said air passages.
Claim 6
Dependent Claim
70 words
A storage heater according to claim 1 wherein said casing has an outer wall, an inner wall spaced from said outer wall and forming with said outer wall a hermetic chamber, a gas in said chamber, and a porous insulation material filling said chamber wherein the diameter of the pores of said material is less than the mean free path of said gas at the operating temperature of said heater.
Claim 7
Dependent Claim
15 words
A storage heater according to claim 5 wherein the pressure within said chamber is sub-atmospheric.
Claim 8
Dependent Claim
55 words
A storage heater according to claim 1 wherein said casing has an outer wall, an inner wall spaced from the outer wall and forming with said outer wall a hermetic chamber, and openings in the inner and outer bottom walls joined by bellows means to form an air duct through the bottom of said casing.
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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) | 1977-01-14 | 1977-07-16 | 1978-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-14 | 1981-07-16 | 1982-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-14 | 1985-07-16 | 1986-01-15 | $7700.00 | Window Closed / Lapsed |