Patent US3610879A successfully refreshed from Google Patents.
US3610879A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Insulated heating chamber for vaporizers
Assignee: Individual
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Filing: 1969-12-15
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Granted: 1971-10-05
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Expires: 1989-12-15
Abstract
Abstract An electric steam vaporizer has a water container with a top opening covered by a removable cap having depending therefrom a heating chamber. The heating chamber includes a lower portion of lesser cross section containing an electrode assembly for vaporizing water entering the chamber through an inlet in the lower portion. The cap has secured thereto a double-walled airfilled insulating chamber surrounding the heating chamber and spaced from the lower portion thereof. The insulating chamber forms a thermal insulation barrier between the heating chamber and the water in the outer parts of the container. The insulating chamber engages a pair of ribs arising from the container bottom to limit water flow out of the space between the insulating and heating chambers.
Inventors
- 👤 Lawrence Katzman
- 👤 Edward Briggin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 16:22
CPC Classifications
F; F24; F24H; F24H1/00
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
151 words
A vaporizer comprising a container having an opening, a cap positioned on said container overlying said opening, said cap having a steam outlet therein, a heating chamber secured to and depending from said cap, said heating chamber extending into said container and including an upper portion and a lower portion of lesser cross-sectional dimensions than said upper portion, said steam outlet being in communication with said heating chamber, an insulating chamber secured to said cap at least partially surrounding said heating chamber and spaced from said lower portion, said lower portion having a liquid intake opening therein, an electrode assembly suspended from said cap and extending into said lower portion, and means for connecting said electrode assembly to a source of electrical power, said insulating chamber extending coextensive with said lower portion, said insulating chamber including inner and outer walls, said inner wall extending downwardly and outwardly toward said outer wall.
Claim 2
Dependent Claim
151 words
A vaporizer comprising a container having an opening, a cap positioned on said container overlying said opening, said cap having a steam outlet therein, a heating chamber secured to and depending from said cap, said heating chamber extending into said container and including an upper portion and a lower portion of lesser cross-sectional dimensions than said upper portion, said steam outlet being in communication with said heating chamber, an insulating chamber secured to said cap at least partially surrounding said heating chamber and spaced from said lower portion, said lower portion having a liquid intake opening therein, an electrode assembly suspended from said cap and extending into said lower portion, and means for connecting said electrode assembly to a source of electrical power, said insulating chamber extending coextensive with said lower portion, said insulating chamber including inner and outer walls, said inner wall extending downwardly and outwardly toward said outer wall.
Claim 3
Dependent Claim
18 words
A vaporizer according to claim 1, wherein said inner and outer walls are concentric with said heating chamber.
Claim 4
Dependent Claim
151 words
A vaporizer comprising a container having an opening, a cap positioned on said container overlying said opening, said cap having a steam outlet therein, said cap including an upper wall, a heating chamber secured to and depending from said cap and extending into said container, said steam outlet being in communication with said heating chamber, an insulating chamber secured to said cap surrounding said heating chamber and having at least a portion thereof spaced from said heating chamber, said heating chamber having a liquid intake opening therein, an electrode assembly suspended from said cap and extending into said heating chamber, means for connecting said electrode assembly to a source of electrical power, said container having a bottom provided with an upwardly extending rib, said rib extending into engagement with said insulating chamber for restricting fluid flow from said heating chamber to a location in said container outwardly of said insulating chamber.
Claim 5
Dependent Claim
151 words
A vaporizer comprising a container having an opening, a cap positioned on said container overlying said opening, said cap having a steam outlet therein, said cap including an upper wall, a heating chamber secured to and depending from said cap and extending into said container, said steam outlet being in communication with said heating chamber, an insulating chamber secured to said cap surrounding said heating chamber and having at least a portion thereof spaced from said heating chamber, said heating chamber having a liquid intake opening therein, an electrode assembly suspended from said cap and extending into said heating chamber, means for connecting said electrode assembly to a source of electrical power, said container having a bottom provided with an upwardly extending rib, said rib extending into engagement with said insulating chamber for restricting fluid flow from said heating chamber to a location in said container outwardly of said insulating chamber.
Claim 6
Dependent Claim
23 words
A vaporizer according to claim 3, wherein a second rib surrounding said first rib further engages said insulating chamber for restricting fluid flow.
Claim 7
Dependent Claim
23 words
A vaporizer according to claim 3, said cap having at least one aperture therethrough in alignment with and communicating with said insulating chamber.
Claim 8
Dependent Claim
13 words
A vaporizer according to claim 3 wherein said rib is circular in shape.
Claim 9
Dependent Claim
22 words
A vaporizer according to claim 6, wherein said rib is closely spaced to said insulating chamber to permit only limited fluid flow.
Claim 10
Dependent Claim
29 words
A vaporizer according to claim 6, said insulating chamber being air filled, said cap having a plurality of apertures therethrough in alignment with and communicating with said insulating chamber.
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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) | 1974-10-04 | 1975-04-05 | 1975-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-04 | 1979-04-05 | 1979-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-04 | 1983-04-05 | 1983-10-05 | $7700.00 | Window Closed / Lapsed |