US4098254A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heating device
Assignee: Individual
•
Filing: 1975-10-06
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Granted: 1978-07-04
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Expires: 1995-10-06
Abstract
Abstract A heating plant has a fuel container with an evaporation space or chamber from which evaporated fuel is passed to a combustion chamber. Combustion gases pass from the combustion chamber through a heating tube, for discharge, while part of said gases is fed back to the evaporation chamber. The feedback path has variable insulation or flow control to control the feedback gas temperature thus to maintain constant the amount of heat fed back, irrespective of the combustion chamber heat output. The connections of evaporation chamber to combustion chamber and evaporation chamber to heating tube, by way of the gas feedback tube, are rendered more secure by mechanical support means such as bracing struts, to resist operating and transportation stresses.
Inventors
- 👤 Theo William Bose
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 01:14
CPC Classifications
F; F24; F24C; F24C5/00; F24C5/16; F23; F23D; F23D5/00; F24C5/02; F24C5/14
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
209 words
In a heating device comprising: a fuel container including a cover in which a liquid fuel such as oil can be evaporated within an evaporation chamber formed by said fuel container and its cover; a combustion chamber connected on the fuel container, for combustion of the evaporated fuel; a heating tube connected to the combustion chamber, for carrying combustion gases therefrom; and a gas feedback means air-tightly connecting the heating tube to the evaporation chamber, for returning to the evaporation chamber a part of the combustion gases in the heating tube, thereby to cause evaporation of fuel during operation; the improvement wherein the gas feedback means is controllable to regulate the amount of heat introduced into the evaporation chamber by the feedback gas, thereby to maintain said amount at a substantially constant level, air-tight connections between said combustion and said evaporation chambers and between said combustion chamber and said heating tube, and wherein mechanical support means in the form of a separate framework connected at least between said fuel container of said heating tube for sustaining the respective air-tight connections between the evaporating chamber and the combustion chamber and between the heating tube and the combustion chamber, both during heating operation and also during transportation of the heating device.
Claim 2
Dependent Claim
209 words
In a heating device comprising: a fuel container including a cover in which a liquid fuel such as oil can be evaporated within an evaporation chamber formed by said fuel container and its cover; a combustion chamber connected on the fuel container, for combustion of the evaporated fuel; a heating tube connected to the combustion chamber, for carrying combustion gases therefrom; and a gas feedback means air-tightly connecting the heating tube to the evaporation chamber, for returning to the evaporation chamber a part of the combustion gases in the heating tube, thereby to cause evaporation of fuel during operation; the improvement wherein the gas feedback means is controllable to regulate the amount of heat introduced into the evaporation chamber by the feedback gas, thereby to maintain said amount at a substantially constant level, air-tight connections between said combustion and said evaporation chambers and between said combustion chamber and said heating tube, and wherein mechanical support means in the form of a separate framework connected at least between said fuel container of said heating tube for sustaining the respective air-tight connections between the evaporating chamber and the combustion chamber and between the heating tube and the combustion chamber, both during heating operation and also during transportation of the heating device.
Claim 3
Dependent Claim
46 words
A device according to claim 1 wherein the gas feedback means includes a gas feedback conduit and a heat protective means for variably enclosing the conduit, thereby to control the amount of heat fed back to the evaporation chamber by the gas passing through the conduit.
Claim 4
Dependent Claim
94 words
A device according to claim 1 wherein the gas feedback means comprises a tube bend which is extended out of the heating tube and which is connected to a substantially rectilinear gas feedback conduit opening into the evaporation chamber, and wherein the part of the tube bend which lies outside the heating tube, and the gas feedback conduit, are enclosed by a heat protective sleeve which is open towards the heating tube and which variably encloses the tube bend and the conduit, thereby to regulate said amount of heat to said substantially constant level.
Claim 5
Dependent Claim
22 words
A device according to claim 3 wherein said sleeve is of a one-part construction and is removable from the gas feedback means.
Claim 6
Dependent Claim
156 words
A device according to claim 1 wherein said heating tube and a gas feedback conduit forming part of said gas feedback means are each connected to the fuel container including the evaporation chamber, by way of respective apertures, the device further including an igniter provided at the top of said fuel container and comprising an ignition connection aperture opening into said fuel container and having an ignition slide member, for closing said aperture, a disabling means for rendering said igniter inoperative and a shut-off closure means displaceable between a first position in which the first mentioned apertures are closed and a second position in which both said first mentioned apertures are open, the shut-off closure means being operatively connected to said disabling means whereby when said shut-off closure means is in its aperture-closing position said igniter is rendered inoperative while in the aperture-opening position of the shut-off closure means the igniter is enabled for ignition operation.
Claim 7
Dependent Claim
53 words
A device according to claim 5 wherein said shut-off closure means is in the form of a slide plate actuatable by means of a pivotal lever assembly, said assembly including a locking member for disabling the igniter, the locking member engaging over the igniter when the closure means is in its aperture-closing position.
Claim 8
Dependent Claim
67 words
A device according to claim 6 wherein said lever assembly comprises a first pivotal lever which is non-rotatably connected to the rotary shaft of the closure plate, a second pivotal lever which is pivotal about a stationary point, and a third lever which interconnects said first and second levers, and wherein said locking member is of an arcuate configuration and is carried by said second pivotal lever.
Claim 9
Dependent Claim
19 words
A device according to claim 6 wherein said locking member has an actuating knob for actuating said lever assembly.
Claim 10
Dependent Claim
42 words
A device according to claim 6 wherein said igniter disabling means includes a closure cap for covering the igniter to prevent operation thereof, and wherein in the aperture-closing position of the closure plate the locking member prevents opening of said closure cap.
Claim 11
Dependent Claim
48 words
A device according to claim 5 wherein said igniter disabling means includes a fixed member having an aperture and wherein, in the locking position of the locking member, corresponding to the aperture-closing position of the closure plate, the free end of the locking member engages into said aperture.
Claim 12
Dependent Claim
39 words
A device according to claim 10 wherein said free end of the locking member has an opening for receiving a lock means thereby to secure the locking member in said aperture and to prevent unauthorised operation of said igniter.
Claim 13
Dependent Claim
95 words
A device according to claim 9 wherein said closure cap is openable by a pivotal movement about a horizontal axis, wherein a vertical connecting assembly is pivotally connected to the top of the closure cap thereby to connect the closure cap to an air distributor member provided at a spacing above the free end of the heating tube, whereby in the open position of said closure cap the air distributor member is raised while in the closed position of the closure cap the air distributor member lies on a support ring, over the heating tube.
Claim 14
Dependent Claim
53 words
A device according to claim 12 wherein said connecting assembly comprises first and second levers having one end connected to the closure cap and to the air distributor member respectively, and their other end connected to respective ends of a rocking lever which is mounted rotatably at its centre on the heating device.
Claim 15
Dependent Claim
41 words
A device according to claim 10 wherein said second pivotal lever of said lever assembly and said fixed member having the aperture for the locking member are disposed on a cover plate which covers a housing accommodating the rotatable closure plate.
Claim 16
Dependent Claim
72 words
A device according to claim 1 wherein said mechanical support means is in the form of a stabilising mounting comprising two struts which extend in the longitudinal direction of the device at a spacing from each other and which in their lower region are each fixed to a heat-insulated vessel in which said fuel container is disposed, while in their upper regions the struts support the heating tube in a vertical position.
Claim 17
Dependent Claim
25 words
A device according to claim 15 wherein said two struts extend through outwardly bulged vertical side pockets in said receiving vessel and are secured therein.
Claim 18
Dependent Claim
57 words
A device according to claim 16 wherein said side pockets are closed at their upper and lower ends by respective flange plates, wherein the struts are extended at least through the upper flange plates of the respective side pockets, and are oil-tight secured, such as by welding, both to the upper and to the lower flange plates.
Claim 19
Dependent Claim
63 words
A device according to claim 15 wherein said receiving vessel is provided with three side pockets which are arranged at substantially uniform spacings from each other in the peripheral direction of said vessel, wherein the two struts are mounted and secured in two of said side pockets, and said third side pocket receives a filling connection for filling the fuel container with fuel.
Claim 20
Dependent Claim
55 words
A device according to claim 8 wherein the lower ends of said two struts project downwardly from the respective side pockets and form support legs terminating in support plates, and wherein a third support leg which also has a support plate is secured such as by welding to the underside of the third side pocket.
Claim 21
Dependent Claim
33 words
A device according to claim 15 wherein said two struts support the heating tube by means of a mounting ring which is fixedly connected to the struts and which embraces the heating tube.
Claim 22
Dependent Claim
44 words
A device according to claim 20 wherein said struts extend at an angle of inclination inwardly from the upper end of the side pockets, up to the level of said mounting ring, and from said level extend vertically upwardly parallel to said heating tube.
Claim 23
Dependent Claim
39 words
A device according to claim 15 wherein said struts extend upwardly to shortly below the upper end of the heating tube, for example up to the lower end of the last fifth of the height of the heating tube.
Claim 24
Dependent Claim
50 words
A device according to claim 20 wherein said mounting ring is of a two-part construction, wherein a first part of the mounting ring is secured to the two struts, and wherein a second part of the mounting ring is connected to the first part releasably, for example by screw means.
Claim 25
Dependent Claim
50 words
A device according to claim 15 wherein said stabilising struts are hollow members and in their upper end portions carry correspondingly configured mounting struts which support a horizontal mounting ring for an air distributor member, said ring being disposed at a spacing from the upper edge of the heating tube.
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) | 1981-07-03 | 1982-01-02 | 1982-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-07-03 | 1986-01-02 | 1986-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-07-03 | 1990-01-02 | 1990-07-04 | $7700.00 | Window Closed / Lapsed |