US3585362A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable electrical heating device
Assignee: Bausch and Lomb Inc
•
Filing: 1969-01-02
•
Granted: 1971-06-15
•
Expires: 1989-01-02
Abstract
Abstract A household electrical heating device of the type that uses the rapid conversion of a quantity of water to steam as the operative heating means. The heating device is characterized in that means are provided for spilling of the water and prevention of contact with the water by the user when the heating element that is in direct contact with the water is energized.
Inventors
- 👤 Paul A Hoogesteger
- 👤 Charles R Mcdougal
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:31
CPC Classifications
A; A47; A47J; A47J36/00; A47J36/24; A47J36/2411; A47J36/2433; A61; A61L; A61L12/00; A61L12/02; A61L12/04; A61L2/00; A61L2/02; A61L2/04
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
209 words
A device for heating an article to be placed therein, comprising: a. a case having a normal upright position and defining therein a walled article receiving chamber for receiving an article and a walled liquid receiving chamber for holding a liquid, fillable to a predetermined level, the walls of said liquid receiving chamber defining an aperture therein for the introduction of a liquid, the walls of said article receiving chamber defining an aperture therein for receiving heated vapors from said liquid receiving chamber, said two chambers being otherwise separated from each other, the volume of liquid defined by filling to said predetermined level being less than the volume of liquid said liquid receiving chamber will hold when said case is tipped on its side, said apertures being located above the level said volume of liquid will assume when said case is tipped on its side; b. conduit means connected at one end to said liquid introducing aperture in said liquid receiving chamber and connected at its other end to said heated vapors receiving aperture in said article receiving chamber; and c. electrical heating means disposed below said predetermined level of liquid in said liquid receiving chamber for heating said liquid to a sufficient temperature to form the heated vapors.
Claim 2
Independent Claim
209 words
A device for heating an article to be placed therein, comprising: a. a case having a normal upright position and defining therein a walled article receiving chamber for receiving an article and a walled liquid receiving chamber for holding a liquid, fillable to a predetermined level, the walls of said liquid receiving chamber defining an aperture therein for the introduction of a liquid, the walls of said article receiving chamber defining an aperture therein for receiving heated vapors from said liquid receiving chamber, said two chambers being otherwise separated from each other, the volume of liquid defined by filling to said predetermined level being less than the volume of liquid said liquid receiving chamber will hold when said case is tipped on its side, said apertures being located above the level said volume of liquid will assume when said case is tipped on its side; b. conduit means connected at one end to said liquid introducing aperture in said liquid receiving chamber and connected at its other end to said heated vapors receiving aperture in said article receiving chamber; and c. electrical heating means disposed below said predetermined level of liquid in said liquid receiving chamber for heating said liquid to a sufficient temperature to form the heated vapors.
Claim 3
Dependent Claim
43 words
The device according to claim 1 wherein said conduit means comprises a tube having slots therein to facilitate the introduction of liquid into said liquid receiving chamber and the escapement of heated vapors into said article receiving chamber from said liquid receiving chamber.
Claim 4
Dependent Claim
53 words
The device according to claim 2 wherein the connection point of said conduit means and said liquid introducing aperture of said liquid receiving chamber is visible to a user of said device, said connection point defining said predetermined level so that the user may observe when said liquid has reached said predetermined level.
Claim 5
Dependent Claim
46 words
The device according to claim 3 wherein said article receiving chamber comprises a removable portion of said case, said removable portion including sealing means for sealably separating said arTicle receiving chamber from said liquid receiving chamber when said removable portion is fully inserted in said case.
Claim 6
Dependent Claim
56 words
The device according to claim 1 wherein said article receiving chamber is of annular shape, said liquid receiving chamber is of annular shape and said liquid receiving chamber partially surrounds said article receiving chamber to receive said liquid if said case is tipped on its side irrespective of the direction in which said case is tipped.
Claim 7
Dependent Claim
42 words
The device according to claim 5 which further comprises conduit means connected at one end to said liquid introducing aperture in said liquid receiving chamber and connected at its other end to said heated vapors receiving aperture in said article receiving chamber.
Claim 8
Dependent Claim
43 words
The device according to claim 6 wherein said conduit means comprises a tube having slots therein to facilitate the introduction of liquid into said liquid receiving chambers and the escapement of heated vapors into said article receiving chamber from said liquid receiving chamber.
Claim 9
Dependent Claim
53 words
The device according to claim 7 wherein the connection point of said conduit means and said liquid introducing aperture of said liquid receiving chamber is visible to a user of said device, said connection point defining said predetermined level so that the user may observe when said liquid has reached said predetermined level.
Claim 10
Dependent Claim
46 words
The device according to claim 8 wherein said article receiving chamber comprises a removable portion of said case, said removable portion including sealing means for sealably separating said article receiving chamber from said liquid receiving chamber when said removable portion is fully inserted in said case.
Claim 11
Dependent Claim
177 words
In a portable electrical heating device of the kind comprised of a one-piece cuplike member having a normal upright orientation and defining therein a reservoir with electrical heating means disposed at the bottom thereof for heating a predetermined volume of liquid to a sufficient temperature to form heated vapors which may be introduced into said cuplike member to cover said electrical heating means, the improvement comprising: an insert member sealably engageable with said cuplike member to define within said reservoir a space below said insert member and above the level assumed by said predetermined volume of liquid, said insert member defining an aperture for the passage of liquid and an aperture for the passage of heated vapors, said apertures comprising a tube having slots therein to facilitate the introduction of liquid and the escape of heated vapors, and said apertures being disposed within said insert member at a sufficient distance from the walls of said cuplike member that said insert member will contain said predetermined volume of liquid if said heating device is tipped on its side.
Claim 12
Dependent Claim
177 words
In a portable electrical heating device of the kind comprised of a one-piece cuplike member having a normal upright orientation and defining therein a reservoir with electrical heating means disposed at the bottom thereof for heating a predetermined volume of liquid to a sufficient temperature to form heated vapors which may be introduced into said cuplike member to cover said electrical heating means, the improvement comprising: an insert member sealably engageable with said cuplike member to define within said reservoir a space below said insert member and above the level assumed by said predetermined volume of liquid, said insert member defining an aperture for the passage of liquid and an aperture for the passage of heated vapors, said apertures comprising a tube having slots therein to facilitate the introduction of liquid and the escape of heated vapors, and said apertures being disposed within said insert member at a sufficient distance from the walls of said cuplike member that said insert member will contain said predetermined volume of liquid if said heating device is tipped on its side.
Claim 13
Dependent Claim
40 words
The improvement according to claim 10 wherein the bottom of said tube is visible to a user of said device, said bottom defining said predetermined level so that the user may observe when said liquid has reached said predetermined level.
References Cited (Backward Citations)
US1683071A
Cited
US1037369A
Cited
US1738360A
Cited
US1952774A
Cited
CH247658A
Cited
DE817328C
Cited
US2837625A
Cited
US2827541A
Cited
US2881692A
Cited
US3222499A
Cited
CH391999A
Cited
US3347618A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-14 | 1974-12-14 | 1975-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-14 | 1978-12-14 | 1979-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-14 | 1982-12-14 | 1983-06-15 | $7700.00 | Window Closed / Lapsed |