US4401091A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Temperature controlled fuel heater
Assignee: Modine Manufacturing Co
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Filing: 1981-07-24
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Granted: 1983-08-30
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Expires: 2001-07-24
Abstract
Abstract A fuel heater having a fuel passage through the heater and heated means as a part of the heater with a valve movable between first and second positions, the valve at the first position directing the fuel through a first path in heat receiving relationship with the heated means and at the second position directing substantially all the fuel through a second path away from the heated means so that the fuel is not substantially heated and movable temperature responsive means responsive to the temperature of the fuel in the heater for moving the valve means between the first and second positions, valve means directing portions of the fuel through both said paths when between said first and second positions.
Inventors
- 👤 Norman F. Costello
- 👤 Dennis C. Granetzke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:27
CPC Classifications
F; F02; F02M; F02M31/00; F02M31/02; F02M31/04; F02M31/10; F02M31/107; F02M31/16; F02D; F02D2200/00; F02D2200/02; F02D2200/06; F02D2200/0606; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
114 words
A fuel heater, comprising a source of fuel: passage means for said fuel through said heater; heated means; valve means movable between a first position and a second position, said valve means at said first position directing substantially all said fuel through a first path in heat receiving relationship with said heated means and at said second position directing substantially all said fuel through a second path away from said heated means; and movable temperature responsive means responsive to the temperature of said fuel in said heater for moving said valve means between said first and second positions, said valve means directing portions of said fuel through both said paths when between said positions.
Claim 2
Dependent Claim
114 words
A fuel heater, comprising a source of fuel: passage means for said fuel through said heater; heated means; valve means movable between a first position and a second position, said valve means at said first position directing substantially all said fuel through a first path in heat receiving relationship with said heated means and at said second position directing substantially all said fuel through a second path away from said heated means; and movable temperature responsive means responsive to the temperature of said fuel in said heater for moving said valve means between said first and second positions, said valve means directing portions of said fuel through both said paths when between said positions.
Claim 3
Dependent Claim
28 words
The heater of claim 1 wherein there is provided an elongated valve body in which is located said passage means, heated means, valve means and temperature responsive means.
Claim 4
Dependent Claim
50 words
The heater of claim 1 wherein said heater is provided with an entrance end and an exit end for said fuel with said valve means extending between said ends, said heated means being located intermediate said ends and said temperature responsive means being located adjacent to one of said ends.
Claim 5
Dependent Claim
16 words
The heater of claim 1 wherein said temperature responsive means is located at said entrance end.
Claim 6
Dependent Claim
18 words
The heater of claim 1 wherein there is provided a chamber for hot liquid comprising said heated means.
Claim 7
Dependent Claim
29 words
The heater of claim 1 wherein there is provided a chamber for hot liquid comprising said heated means and flow connections for directing a hot liquid through said chamber.
Claim 8
Dependent Claim
54 words
The heater of claim 1 wherein there is provided an elongated body having a heated surface means comprising said heated means, said valve means in said first position directing fuel flowing through the heater in contact with said heated surface means and in said second position directing said fuel away from said surface means.
Claim 9
Dependent Claim
53 words
The heater of claim 1 wherein there is provided an elongated, generally cylindrical body member provided with a chamber for a hot liquid comprising said heated means, said first path comprising an annular fuel flow chamber adjacent to said heated means and said second path comprising an axial passage spaced from said chamber.
Claim 10
Dependent Claim
43 words
The heater of claim 1 wherein said valve means comprises an elongated member having a pair of spaced valve members arranged for conjoint sliding movement by said temperature responsive means for closing and opening spaced valve ports comprising portions of said second path.
Claim 11
Dependent Claim
21 words
The heater of claim 1 wherein there are provided yieldable means constantly urging said movable valve means toward said first position.
Claim 12
Dependent Claim
74 words
The heater of claim 1 wherein there is provided an elongated valve body in which is located said passage means, heated means, valve means and temperature responsive means, and wherein said heater is provided with an entrance end and an exit end for said fuel with said valve means extending between said ends, said heated means being located intermediate said ends and said temperature responsive means being located adjacent to one of said ends.
Claim 13
Dependent Claim
79 words
The heater of claim 1 wherein there is provided a chamber for hot liquid comprising said heated means and flow connections for directing a hot liquid through said chamber, and wherein there is provided an elongated body having a heated surface means comprising said heated means, said valve means in said first position directing fuel flowing through the heater in contact with said heated surface means and in said second position directing said fuel away from said surface means.
Claim 14
Dependent Claim
93 words
The heater of claim 1 wherein there is provided an elongated, generally cylindrical body member provided with a chamber for a hot liquid comprising said heated means, said first path comprising an annular fuel flow chamber adjacent to said heated means and said second path comprising an axial passage spaced from said second chamber, and wherein said valve means comprises an elongated member having a pair of spaced valve members arranged for conjoint sliding movement by said temperature responsive means for closing and opening spaced valve ports comprising portions of said second path.
Claim 15
Dependent Claim
21 words
The heater of claim 13 wherein there are provided yieldable means constantly urging said movable valve means toward said first position.
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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) | 1986-08-29 | 1987-02-28 | 1987-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-08-29 | 1991-02-28 | 1991-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-08-29 | 1995-02-28 | 1995-08-30 | $7700.00 | Window Closed / Lapsed |