US4428351A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel processor apparatus
Assignee: Davco Technology LLC
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Filing: 1981-07-27
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Granted: 1984-01-31
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Expires: 2001-07-27
Abstract
Abstract A processor for diesel engine fuel has a combined heating and sediment chamber surmounted by a filtering unit to which the fuel flows from said chamber. Heating means contained in the chamber has a part in close proximity to an inlet passage which leads from the chamber to the filtering unit. The filtering unit includes filtering means removably carried by an upper portion of the processor. A modified construction has a transparent bottom section which may be of variant length depending upon the desired capacity of the unit.
Inventors
- 👤 Leland L. Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 05:07
CPC Classifications
B; B01; B01D; B01D17/00; B01D17/02; B01D17/04; B01D17/042; B01D35/00; B01D35/18; B01D36/00; B01D36/003; F; F02; F02M; F02M31/00; F02M31/02; F02M31/16; F02M37/00; F02M37/0011; F02M37/22; F02M37/24; F02M37/26; F02M37/28; F02M37/30; F02M37/32; F02M37/42; C; C10; C10G; C10G2400/00; C10G2400/04; F02B; F02B3/00; F02B3/06; F02D; F02D33/00; F02D33/003; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
118 words
A unitary processing and filtering unit, particularly for diesel fuel and operative to separate out water-impurities from the fuel, comprising a housing including a lower portion defining a combined heating and sediment chamber having a fuel inlet, a concentric annular shaped filtering means carried by an upper portion of said housing and having a fuel outlet, and means defining a passage for conducting fluid from said chamber to the filtering means, characterized by heating means in said lower portion operative to heat the incoming fuel by direct contact therewith in said chamber, said heating means including a heated portion in close proximity to said passage, and said heating means extends through a substantial part of the lower portion.
Claim 2
Dependent Claim
118 words
A unitary processing and filtering unit, particularly for diesel fuel and operative to separate out water-impurities from the fuel, comprising a housing including a lower portion defining a combined heating and sediment chamber having a fuel inlet, a concentric annular shaped filtering means carried by an upper portion of said housing and having a fuel outlet, and means defining a passage for conducting fluid from said chamber to the filtering means, characterized by heating means in said lower portion operative to heat the incoming fuel by direct contact therewith in said chamber, said heating means including a heated portion in close proximity to said passage, and said heating means extends through a substantial part of the lower portion.
Claim 3
Dependent Claim
24 words
A unit as defined in claim 1 wherein, a partition separates the upper and lower portions, and the heating means is below the partition.
Claim 4
Dependent Claim
70 words
A unit as defined in claim 1 further characterized in that the housing is of substantially cylindrical form, said filtering means being located in an upper chamber defined by an upper portion of said housing, a partition between said chambers in said housing, said passage providing a restricted area of communication between said chambers, said heating means including an elongated heatable element extending through said first-mentioned chamber toward said passage.
Claim 5
Dependent Claim
30 words
A unit as defined in claim 3 wherein said heatable element extends upwardly through said first-mentioned chamber at an angle to the axis of the cylinder defined by said housing.
Claim 6
Dependent Claim
64 words
A unit as defined in claim 4 further characterized in that said partition is a substantially circular plate of slightly lesser diameter than the interior of the housing, thereby providing between the plate and housing a restricted gap which constitutes said passage, said heatable element extending to a position close to, but spaced from, both said plate and the inner wall of the housing.
Claim 7
Dependent Claim
24 words
A unit as defined in claim 3 wherein said filtering means is supported on said partition, and the heating means is below the partition.
Claim 8
Dependent Claim
30 words
A unit as defined in claim 6 wherein said housing includes a removable fluid-tight top cover, said filtering means comprising a removable filtering element clamped between said cover and partition.
Claim 9
Dependent Claim
36 words
A unit as defined in claim 1 wherein said heating means comprises an inverted U-tube extending angularly upwardly through said chamber and having a bight area defining said heated portion in close proximity to the passage.
Claim 10
Dependent Claim
45 words
A unit as defined in claim 1 wherein said chamber has a partly spherical bowl-shaped bottom portion, said heating means comprising a U-tube depending into said bowl-shaped bottom portion, said U-tube having an inlet portion located close to said passage and defining said heated portion.
Claim 11
Dependent Claim
32 words
A unit as defined in claim 1 further characterized in that the filtering means comprises an assembly separably threadedly secured to the top of and communicating with the interior of said housing.
Claim 12
Dependent Claim
13 words
A unit as defined in claim 9 wherein said bottom portion is transparent.
Claim 13
Dependent Claim
16 words
A unit as defined in claim 9 wherein said bottom portion is a separate transparent part.
References Cited (Backward Citations)
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Cited
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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) | 1987-01-30 | 1987-08-01 | 1988-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-01-30 | 1991-08-01 | 1992-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-01-30 | 1995-08-01 | 1996-01-31 | $7700.00 | Window Closed / Lapsed |