US3835295A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water heater
Assignee: Individual
•
Filing: 1972-09-05
•
Granted: 1974-09-10
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Expires: 1992-09-05
Abstract
Abstract A water heater for heating predetermined variable quantities of water and dispensing the exact predetermined quantity at substantially the boiling temperature includes a heating compartment having its bottom connected to the top of a second compartment. A heating element is provided in the heating compartment. The heating compartment is connected to a constant level water supply means. A movable float in the heating compartment is latched in a first position whereby it displaces a predetermined quantity of water. The float can be released for movement to a selected second position determined by a variable stop means wherein the quantity of water displaced by the float is decreased. The selected second position determines the quantity of water to be heated. Movement of the float from the first to the second position activates a switch to energize the heating element. The heated water is transferred through a passage from the bottom of the heating compartment into the upper part of the second compartment and may be then dispensed from the second compartment through a siphonic dispenser.
Inventors
- 👤 A Ronchese
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:19
CPC Classifications
B; B67; B67D; B67D3/00; B67D3/0022; A; A47; A47J; A47J31/00; A47J31/40; A47J31/402; A47J31/44; A47J31/54; A47J31/56; Y; Y10; Y10T; Y10T137/00; Y10T137/6416; Y10T137/6606
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
231 words
A water heater comprising a heating compartment, a passage connecting the bottom of the heating compartment to the top of a second compartment, a heating element in the heating compartment and an outlet from the second compartment, means for supplying a constant level water supply to the heating compartment, selectively movable means within the heating compartment for displacing a predetermined first volume of water within the heating compartment when in a first position in said compartment and movable to a second position in said compartment wherein it displaces a volume less than said first volume, means cooperative with said displacing means for constraining movement of said selectively movable means from said first to said second position, means cooperative with said displacing means for limiting movement of said displacing toward said second position, means for releasing said constraining means whereby said displacing means can move to said second position thereby to control, in coordination with said water supplying means, the volume of water displaced within the heating compartment between said predetermined first volume and a preselectable second volume less than said first volume, and, means activated by said displacing means for supplying power to the heating element in coordination with the decreasing of displaced water from the first volume to the second volume, a desired volume of water to be heated in the heating compartment being thereby preselectable immediately prior to heating.
Claim 2
Dependent Claim
231 words
A water heater comprising a heating compartment, a passage connecting the bottom of the heating compartment to the top of a second compartment, a heating element in the heating compartment and an outlet from the second compartment, means for supplying a constant level water supply to the heating compartment, selectively movable means within the heating compartment for displacing a predetermined first volume of water within the heating compartment when in a first position in said compartment and movable to a second position in said compartment wherein it displaces a volume less than said first volume, means cooperative with said displacing means for constraining movement of said selectively movable means from said first to said second position, means cooperative with said displacing means for limiting movement of said displacing toward said second position, means for releasing said constraining means whereby said displacing means can move to said second position thereby to control, in coordination with said water supplying means, the volume of water displaced within the heating compartment between said predetermined first volume and a preselectable second volume less than said first volume, and, means activated by said displacing means for supplying power to the heating element in coordination with the decreasing of displaced water from the first volume to the second volume, a desired volume of water to be heated in the heating compartment being thereby preselectable immediately prior to heating.
Claim 3
Dependent Claim
65 words
A water heater as claimed in claim 1 in which said displacing means comprises a float having a stem projecting through the top of said heating compartment, said limiting means cooperative with the displacing means comprising a stop member outside the compartment, the stop member being arranged to limit upward movement of the float to establish said second position to thereby determine said second volume.
Claim 4
Dependent Claim
32 words
A water heater as claimed in claim 2 in which the power supplying means is an electrical supply through a switch located to be operated by a collar on the float stem.
Claim 5
Dependent Claim
75 words
A water heater as claimed in claim 3 wherein said releasing means comprises a latch mechanism to maintain the float in a position in its compartment lower than that determined by the stop member, the collar on the float stem serving to maintain the switch in an open position when the float is in its lowest position, and a means operable to release the latch mechanism allowing the float to rise from its lowest position.
Claim 6
Dependent Claim
26 words
A water heater as claimed in claim 2 in which the stop member is adjustable to enable the upper position of the float to be varied.
Claim 7
Dependent Claim
24 words
A water heater as claimed in claim 2 in which the float stem is hollow and connects the inside of the float to atmosphere.
Claim 8
Dependent Claim
18 words
A water heater as claimed in claim 1 in which the second compartment outlet is a siphonic outlet.
Claim 9
Dependent Claim
33 words
A water heater as claimed in claim 7 including a vent from the second compartment which opens downwardly adjacent the outlet and a shield positioned around the outlet and over the vent opening.
Claim 10
Dependent Claim
52 words
A water heater as claimed in claim 1 in which the water supply means is a closed reservoir having a mouth and a dip tube connected to said mouth, the dip tube having its lower end opening into the heating compartment and at a predetermined height above the bottom of the compartment.
Claim 11
Dependent Claim
16 words
A water heater as claimed in claim 9 including a non-return valve in the dip tube.
Claim 12
Dependent Claim
44 words
A water heater as claimed in claim 1 including a stand on which the said heating and second compartments are mounted, said stand containing a means to vary the stand height and having a drip tray located below the outlet of the second compartment.
Claim 13
Dependent Claim
28 words
A water heater as claimed in claim 11 in which the stand has a flat back surface adapted to allow the heater To be mounted on a wall.
Claim 14
Dependent Claim
157 words
A water heater comprising a heating compartment, a heating element in said heating compartment, means for supplying said heating compartment with water at a constant level, a float in said heating compartment, means for latching said float in a lower position such that the float displaces a first volume of water in said lower position and tends to move upwardly with water in said heating compartment at said constant level, means for releasing said latching means, said float moving upwardly in response to the release of said latching means and thereby displacing a second volume of water less than said first volume of water, means for preselecting said second volume of water including means for constraining the upward movement of said float at a preselectable upper position above said lower position, means for energizing said heating element in response to upward movement of said float, and water discharge means for discharging heated water from said heating compartment.
Claim 15
Dependent Claim
157 words
A water heater comprising a heating compartment, a heating element in said heating compartment, means for supplying said heating compartment with water at a constant level, a float in said heating compartment, means for latching said float in a lower position such that the float displaces a first volume of water in said lower position and tends to move upwardly with water in said heating compartment at said constant level, means for releasing said latching means, said float moving upwardly in response to the release of said latching means and thereby displacing a second volume of water less than said first volume of water, means for preselecting said second volume of water including means for constraining the upward movement of said float at a preselectable upper position above said lower position, means for energizing said heating element in response to upward movement of said float, and water discharge means for discharging heated water from said heating compartment.
Claim 16
Dependent Claim
157 words
A water heater comprising a heating compartment, a passage connecting the bottom of the heating compartment to the top of a second compartment, a heating element in the heating compartment and an outlet from the second compartment, means for supplying a constant level water supply to the heating compartment, movable displacement means within the heating compartment for displacing a predetermined first volume of water within the heating compartment, means cooperative with said displacing means for moving said displacement means to a selected second position to thereby decrease the volume of water displaced within the heating compartment to a preselectable second volume less than said first volume, and, means activated by movement of said displacing means for supplying power to the heating element in coordination with the decrease in displaced water from the first volume to the second volume, a desired volume of water to be heated in the heating compartment being thereby preselectable immediately prior to heating.
Claim 17
Dependent Claim
157 words
A water heater comprising a heating compartment, a passage connecting the bottom of the heating compartment to the top of a second compartment, a heating element in the heating compartment and an outlet from the second compartment, means for supplying a constant level water supply to the heating compartment, movable displacement means within the heating compartment for displacing a predetermined first volume of water within the heating compartment, means cooperative with said displacing means for moving said displacement means to a selected second position to thereby decrease the volume of water displaced within the heating compartment to a preselectable second volume less than said first volume, and, means activated by movement of said displacing means for supplying power to the heating element in coordination with the decrease in displaced water from the first volume to the second volume, a desired volume of water to be heated in the heating compartment being thereby preselectable immediately prior to heating.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-09-09 | 1978-03-11 | 1978-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-09 | 1982-03-11 | 1982-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-09 | 1986-03-11 | 1986-09-10 | $7700.00 | Window Closed / Lapsed |