US4363314A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heating apparatus
Assignee: BURD L PAUL RICHARD O BARTZ AND ROBERT W GUTENKAUF D/B/A BURD BARTZ AND GUTENKAUF A PARTNERSHIP
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Filing: 1980-12-15
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Granted: 1982-12-14
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Expires: 2000-12-15
Abstract
Abstract An apparatus for heating a fluid, as air, having a housing surrounding a heat transfer chamber. A casing having a combustion chamber is located in the heat transfer chamber. A motor driven fan mounted on the housing operates to supply air to the combustion chamber and move air through the heat transfer chamber. Fuel, as waste oil, is metered to the combustion chamber and burned. The air supplied to the combustion chamber moves the burning fuel in a circular pattern to promote combustion of the fuel adjacent the casing thereby heating the casing. The air moved through the heat transfer chamber picks up heat from the hot casing. The heated air is discharged through an open grill into the environment surrounding the apparatus.
Inventors
- 👤 Robert V. Albertson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:15
CPC Classifications
F; F23; F23C; F23C3/00; F23C3/006; F23G; F23G7/00; F23G7/05; F24; F24H; F24H3/00; F24H3/02; F24H3/06; F24H3/065
Claims Analysis
Total Claims: 43
Claim 1
Independent Claim
159 words
An apparatus for heating fluid comprising: a housing having a fluid heating chamber, a fluid inlet opening and a fluid exit opening open to said chamber, a casing having a combustion chamber, exhaust means connected to the casing for carrying gas from the combustion chamber, means locating the casing in the fluid heating chamber, means for supplying fuel to said combustion chamber, said fuel, when burned, heating the casing, fluid moving means mounted on the housing for moving fluid through the fluid inlet opening, the fluid heating chamber, and the fluid exit opening, said fluid in the heating chamber being heated by the casing, partition means in said fluid heating chamber secured to the casing and housing, said partition means comprising solid wall means extending between the casing and housing for directing fluid moved by the fluid moving means around the casing, and means having a passage for directing fluid from the fluid moving means into the combustion chamber.
Claim 2
Independent Claim
159 words
An apparatus for heating fluid comprising: a housing having a fluid heating chamber, a fluid inlet opening and a fluid exit opening open to said chamber, a casing having a combustion chamber, exhaust means connected to the casing for carrying gas from the combustion chamber, means locating the casing in the fluid heating chamber, means for supplying fuel to said combustion chamber, said fuel, when burned, heating the casing, fluid moving means mounted on the housing for moving fluid through the fluid inlet opening, the fluid heating chamber, and the fluid exit opening, said fluid in the heating chamber being heated by the casing, partition means in said fluid heating chamber secured to the casing and housing, said partition means comprising solid wall means extending between the casing and housing for directing fluid moved by the fluid moving means around the casing, and means having a passage for directing fluid from the fluid moving means into the combustion chamber.
Claim 3
Dependent Claim
55 words
The apparatus of claim 1 wherein: the housing has a first side wall having said gas inlet opening, and a second side wall having said fluid exit opening, said first and second side walls being located adjacent each other, said partition means extended from one of said first and second side walls to said casing.
Claim 4
Dependent Claim
50 words
The apparatus of claim 2 wherein: said first and second side walls are normally disposed with respect to each other, said first and second side walls having adjacent edges forming a corner of said housing, said solid wall means of said partition means extended from said corner to said casing.
Claim 5
Dependent Claim
54 words
The apparatus of claim 1 wherein: said housing includes a bottom wall, said casing being secured to said bottom wall and having a bottom opening below said bottom wall, means for closing said bottom opening, said means for closing said bottom opening being removable from said casing to facilitate cleaning of the combustion chamber.
Claim 6
Dependent Claim
36 words
The apparatus of claim 4 wherein: the means for closing said bottom opening comprises a plate extended across said opening, and removable means for holding the plate in engagement with the casing to close the opening.
Claim 7
Dependent Claim
16 words
The apparatus of claim 5 including: pan means supported by the plate in the combustion chamber.
Claim 8
Dependent Claim
19 words
The apparatus of claim 5 wherein: the removable means includes a plurality of rod means mounted on the housing.
Claim 9
Dependent Claim
41 words
The apparatus of claim 1 wherein: the means having a passage for directing fluid from the fluid moving means into the combustion chamber is a tubular member secured to the casing and extended from the casing to the fluid inlet opening.
Claim 10
Dependent Claim
22 words
The apparatus of claim 8 wherein: the passage has a longitudinal axis that is offset from the center of the combustion chamber.
Claim 11
Dependent Claim
15 words
The apparatus of claim 9 wherein: the tubular member is inclined downwardly toward the casing.
Claim 12
Dependent Claim
30 words
The apparatus of claim 1 wherein: the casing has an opening in the upper end thereof, and a cover for closing the opening in the upper end of the casing.
Claim 13
Dependent Claim
46 words
The apparatus of claim 1 wherein: the means for supplying fuel to said combustion chamber includes tubular means for carrying fuel across the heating chamber and discharging fuel into the combustion chamber, and valve means for controlling the amount of fuel discharged into the combustion chamber.
Claim 14
Dependent Claim
28 words
The apparatus of claim 12 wherein: the valve means includes an on-off valve and a valve for adjusting the rate of movement of fuel to the tubular means.
Claim 15
Dependent Claim
44 words
The apparatus of claim 1 wherein: the means for supplying fuel to said combustion chamber includes means for discharging said fuel into the combustion chamber adjacent the exit end of said passage for directing gas from the fluid moving means into the combustion chamber.
Claim 16
Dependent Claim
52 words
The apparatus of claim 1 wherein: said fluid moving means comprises a frame mounted on the housing, a motor mounted on the frame, and fan means drivably connected to the motor operable by said motor to move gas through the inlet opening into the heating chamber and passage into the combustion chamber.
Claim 17
Dependent Claim
40 words
The apparatus of claim 15 including: control means operable to terminate the power supply to said motor when the temperature of the fluid in the fluid heating chamber exceeds a preselected upper temperature or falls below a preselected lower temperature.
Claim 18
Dependent Claim
75 words
The apparatus of claim 1 wherein: the means for supplying fuel to said combustion chamber includes a solenoid operated on-off valve, the fluid moving means includes a motor and means for moving fluid drivably connected to said motor, and control means operable to terminate the power supply to said solenoid and motor when the temperature of the fluid in the fluid heating chamber exceeds a preselected upper temperature or falls below a preselected lower temperature.
Claim 19
Dependent Claim
41 words
The apparatus of claim 1 including: a sleeve secured to the casing, said sleeve having a passage open to the combustion chamber, said means for supplying fuel to said combustion chamber including tubular means extended through said passage in the sleeve.
Claim 20
Dependent Claim
26 words
The apparatus of claim 1 wherein: the heating chamber has a longitudinal axis, said casing located in said heating chamber generally parallel to said longitudinal axis.
Claim 21
Dependent Claim
13 words
The apparatus of claim 1 wherein: the casing is an elongated cylindrical member.
Claim 22
Dependent Claim
19 words
The apparatus of claim 20 wherein: the partition means is an upright wall engageable with the casing and housing.
Claim 23
Independent Claim
157 words
An apparatus for heating fluid comprising: a housing having a fluid heating chamber, a fluid inlet opening, and a fluid exit opening open to said chamber, casing means having a combustion chamber, said casing means being located in said heating chamber, exhaust means connected to the casing means for carrying gas from the combustion chamber, means for supplying fuel to said combustion chamber, said fuel, when burned, heating the casing, fluid moving means mounted on the housing for moving fluid through the fluid inlet opening, the fluid heating chamber, and the fluid exit opening, said fluid in the heating chamber being heated by the casing means, solid wall means in said fluid heating chamber extended between the case and housing providing a one-way passage for directing fluid around the casing means, and means having a passage for directing fluid from the fluid moving means into the combustion chamber to promote burning of fuel in the combustion chamber.
Claim 24
Independent Claim
157 words
An apparatus for heating fluid comprising: a housing having a fluid heating chamber, a fluid inlet opening, and a fluid exit opening open to said chamber, casing means having a combustion chamber, said casing means being located in said heating chamber, exhaust means connected to the casing means for carrying gas from the combustion chamber, means for supplying fuel to said combustion chamber, said fuel, when burned, heating the casing, fluid moving means mounted on the housing for moving fluid through the fluid inlet opening, the fluid heating chamber, and the fluid exit opening, said fluid in the heating chamber being heated by the casing means, solid wall means in said fluid heating chamber extended between the case and housing providing a one-way passage for directing fluid around the casing means, and means having a passage for directing fluid from the fluid moving means into the combustion chamber to promote burning of fuel in the combustion chamber.
Claim 25
Dependent Claim
54 words
The apparatus of claim 22 wherein: said housing includes a bottom wall, said casing being secured to said bottom wall and having a bottom opening below said bottom wall, means for closing said bottom opening, said means for closing said bottom opening being removable from said casing to facilitate cleaning of the combustion chamber.
Claim 26
Dependent Claim
36 words
The apparatus of claim 23 wherein: the means for closing said bottom opening comprises a plate extended across said opening, and removable means for holding the plate in engagement with the casing to close the opening.
Claim 27
Dependent Claim
16 words
The apparatus of claim 24 including: pan means supported by the plate in the combustion chamber.
Claim 28
Dependent Claim
19 words
The apparatus of claim 24 wherein: the removable means includes a plurality of rod means mounted on the housing.
Claim 29
Dependent Claim
41 words
The apparatus of claim 22 wherein: the means having a passage for directing fluid from the fluid moving means into the combustion chamber is a tubular member secured to the casing and extended from the casing to the fluid inlet opening.
Claim 30
Dependent Claim
22 words
The apparatus of claim 27 wherein: the passage has a longitudinal axis that is ofset from the center of the combustion chamber.
Claim 31
Dependent Claim
15 words
The apparatus of claim 28 wherein: the tubular member is inclined downwardly toward the casing.
Claim 32
Dependent Claim
30 words
The apparatus of claim 22 wherein: the casing has an opening in the upper end thereof, and a cover for closing the opening in the upper end of the casing.
Claim 33
Dependent Claim
46 words
The apparatus of claim 22 wherein: the means for supplying fuel to said combustion chamber includes tubular means for carrying fuel across the heating chamber and discharging fuel into the combustion chamber, and valve means for controlling the amount of fuel discharged into the combustion chamber.
Claim 34
Dependent Claim
28 words
The apparatus of claim 31 wherein: the valve means includes an on-off valve and a valve for adjusting the rate of movement of fuel to the tubular means.
Claim 35
Dependent Claim
44 words
The apparatus of claim 22 wherein: the means for supplying fuel to said combustion chamber includes means for discharging said fuel into the combustion chamber adjacent the exit end of said passage for directing gas from the fluid moving means into the combustion chamber.
Claim 36
Dependent Claim
52 words
The apparatus of claim 22 wherein: said fluid moving means comprises a frame mounted on the housing, a motor mounted on the frame, and fan means drivably connected to the motor operable by said motor to move gas through the inlet opening into the heating chamber and passage into the combustion chamber.
Claim 37
Dependent Claim
40 words
The apparatus of claim 34 including: control means operable to terminate the power supply to said motor when the temperature of the fluid in the fluid heating chamber exceeds a preselected upper temperature or falls below a preselected lower temperature.
Claim 38
Dependent Claim
75 words
The apparatus of claim 22 wherein: the means for supplying fuel to said combustion chamber includes a solenoid operated on-off valve, the fluid moving means includes a motor and means for moving fluid drivably connected to said motor, and control means operable to terminate the power supply to said solenoid and motor when the temperature of the fluid in the fluid heating chamber exceeds a preselected upper temperature or falls below a preselected lower temperature.
Claim 39
Dependent Claim
41 words
The apparatus of claim 22 including: a sleeve secured to the casing, said sleeve having a passage open to the combustion chamber, said means for supplying fuel to said combustion chamber including tubular means extended through said passage in the sleeve.
Claim 40
Dependent Claim
26 words
The apparatus of claim 22 wherein: the heating chamber has a longitudinal axis, said casing located in said heating chamber generally parallel to said longitudinal axis.
Claim 41
Dependent Claim
13 words
The apparatus of claim 22 wherein: the casing is an elongated cylindrical member.
Claim 42
Dependent Claim
14 words
The apparatus of claim 22 wherein: said solid wall means is an upright wall.
Claim 43
Dependent Claim
25 words
The apparatus of claim 40 wherein: said housing has a top wall and bottom wall, said upright wall extended between said top and bottom walls.
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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) | 1985-12-13 | 1986-06-14 | 1986-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-12-13 | 1990-06-14 | 1990-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-12-13 | 1994-06-14 | 1994-12-14 | $7700.00 | Window Closed / Lapsed |