Patent US3650475A successfully refreshed from Google Patents.
US3650475A
Expired / Lapsed
US
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Carbon black burner construction
Assignee: JM Huber Corp
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Filing: 1970-01-07
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Granted: 1972-03-21
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Expires: 1990-01-07
Abstract
Abstract An improved carbon black burner construction utilizing multiple arrays of gas jets spaced from the oil discharge orifice and including a venturi atomizing tip just prior to the oil discharge orifice improves the light transmittance of a benzene extract from nonstaining large particle size, high structure carcass carbon blacks.
Inventors
- 👤 Charles David Stubblefield
- 👤 John Lee Wells
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:34
CPC Classifications
F; F23; F23D; F23D17/00
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
137 words
An improved carbon black fuel burner construction for producing a controlled structure, high particle size nonstaining carbon black producing a low degree of discoloration of benzene when tested according to ASTM: D1618-65T, said burner being of the type which provides for the atomizing of an oil feedstock within an internal mixing chamber for discharge at an oil discharge orifice, which is circumferentially surrounded at the nozzle surrounding said oil discharge orifice by a plurality of combustion gas jets, wherein the improvement comprises: an additional plurality of circumferentially disposed combustion gas jets, positioned on the burner on the side of said first mentioned plurality of combustion gas jets opposite said oil discharge orifice, at a distance behind said first mentioned plurality of combustion gas jets which is less than 30 times the diameter of said oil discharge orifice.
Claim 2
Dependent Claim
137 words
An improved carbon black fuel burner construction for producing a controlled structure, high particle size nonstaining carbon black producing a low degree of discoloration of benzene when tested according to ASTM: D1618-65T, said burner being of the type which provides for the atomizing of an oil feedstock within an internal mixing chamber for discharge at an oil discharge orifice, which is circumferentially surrounded at the nozzle surrounding said oil discharge orifice by a plurality of combustion gas jets, wherein the improvement comprises: an additional plurality of circumferentially disposed combustion gas jets, positioned on the burner on the side of said first mentioned plurality of combustion gas jets opposite said oil discharge orifice, at a distance behind said first mentioned plurality of combustion gas jets which is less than 30 times the diameter of said oil discharge orifice.
Claim 3
Dependent Claim
67 words
The improvement of the burner construction of claim 1 in which said additional plurality of circumferentially disposed combustion gas jets is positioned on the burner on the side of said first mentioned plurality of combustion gas jets opposite said oil discharge orifice, at a distance behind said first mentioned plurality of combustion gas jets which is less than 15 times the diameter of said oil discharge orifice.
Claim 4
Dependent Claim
37 words
The improvement of the burner construction of claim 2 which further comprises the provision of said internal mixing chamber proximately adjacent to said oil discharge orifice of said burner, whereby internal coking of said burner is reduced.
Claim 5
Dependent Claim
65 words
The improvement of the burner construction of claim 3 which further comprises the provision of a venturi tip within said internal mixing chamber proximate to said first mentioned pluraliTy of combustion gas jets and adjacent to said oil discharge orifice of said burner and at least 10 times the diameter of said oil discharge orifice from said additional plurality of circumferentially disposed combustion gas jets.
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) | 1975-03-21 | 1975-09-20 | 1976-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-21 | 1979-09-20 | 1980-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-21 | 1983-09-20 | 1984-03-21 | $7700.00 | Window Closed / Lapsed |