US3776199A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Regenerative heat exchanger
Assignee: GENERAL CCOMBUSTION Corp
•
Filing: 1972-05-05
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Granted: 1973-12-04
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Expires: 1992-05-05
Abstract
Abstract A heat exchanger comprises a cylindrical body having closed ends with means in one end for introducing the products of combustion thereinto and venting the same therefrom. The introduction is by means of a directional nozzle positioned axially of the cylindrical body. A tubular baffle is positioned axially of the cylindrical body in spaced relation to the directional nozzle and the cylindrical body so that the action of the jet-like introduction of the products of combustion into the tubular baffle will recirculate gases from within the cylindrical body in a regenerative effect so as maintain an even temperature on the surface of the cylindrical body which is emerged in a tank of liquid to be heated.
Inventors
- 👤 J Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:25
CPC Classifications
F; F22; F22B; F22B7/00; F22B7/16; F22B7/20
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
121 words
A direct fired heat exchanger for location in a tank of material to be heated and comprising an elongated body member having an apertured end and a closed end, a directional nozzle positioned in the apertured end in communication with said aperture arranged to receive products of combustion introduced into said heat exchanger through said aperture, a tubular baffle positioned in said body member on a common center line with said directional nozzle and in spaced relation thereto said tubular baffle being relatively smaller than said body member and terminating inwardly from the closed end thereof and means for venting the products of combustion from said body member said means being positioned adjacent said apertured end of said elongated body member.
Claim 2
Dependent Claim
121 words
A direct fired heat exchanger for location in a tank of material to be heated and comprising an elongated body member having an apertured end and a closed end, a directional nozzle positioned in the apertured end in communication with said aperture arranged to receive products of combustion introduced into said heat exchanger through said aperture, a tubular baffle positioned in said body member on a common center line with said directional nozzle and in spaced relation thereto said tubular baffle being relatively smaller than said body member and terminating inwardly from the closed end thereof and means for venting the products of combustion from said body member said means being positioned adjacent said apertured end of said elongated body member.
Claim 3
Dependent Claim
39 words
The heat exchanger of claim 1 and wherein a discharge orifice in said directional nozzle is of smaller size than said tubular baffle whereby a jet-like configuration of the products of combustion directed by said nozzle may be realized.
Claim 4
Dependent Claim
26 words
The heat exchanger of claim 1 and wherein said tubular baffle is perforated inwardly from the end thereof oppositely disposed with respect to said directional nozzle.
Claim 5
Dependent Claim
24 words
The heat exchanger set forth in claim 1 and wherein the closed end of said eLongated body member is arcuate in cross sectional configuration.
Claim 6
Dependent Claim
45 words
The heat exchanger set forth in claim 1 and wherein the elongated body member is cylindrical and the tubular baffle is cross sectionally circular and the area between the cylindrical body member and the tubular baffle is greater than the diameter of the tubular baffle.
References Cited (Backward Citations)
US2717580A
Cited
US2794426A
Cited
US3171388A
Cited
US3269448A
Cited
US3349754A
Cited
US3685977A
Cited
US3681566A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-12-03 | 1977-06-04 | 1977-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-03 | 1981-06-04 | 1981-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-03 | 1985-06-04 | 1985-12-04 | $7700.00 | Window Closed / Lapsed |