Patent US4143860A successfully refreshed from Google Patents.
US4143860A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flame cutting machine for continuous casting strand and the like
Assignee: Messer Griesheim GmbH
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Filing: 1977-08-11
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Granted: 1979-03-13
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Expires: 1997-08-11
Abstract
Abstract A flame cutting machine for subdividing continuously prepared poured casting strands or the like includes an essentially closed suction head in the cutting zone which is mounted movable together with the flame cutting machine for removal of smoke gases, slag and the like produced during the cutting process.
Inventors
- 👤 Klaus Herbener
- 👤 Ewald Schmitt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:32
CPC Classifications
B; B08; B08B; B08B15/00; B08B15/002
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
125 words
In a flame cutting machine having a cutting torch for subdividing continuously prepared casting strands with an arrangement including a suction head for removal of smoke gases, slag and the like produced during the cutting process, the improvement being said suction head and said cutting torch being mounted for joint movement together, said suction head including a housing having plurality of walls and end faces, said end faces being open to permit the casting strand to pass longitudinally through said housing, said walls of said housing defining a cutting zone therebetween, said cutting torch extending through one of said walls of said housing and into said cutting zone, and said housing surrounding said cutting zone to completely envelop the casting strand in said cutting zone.
Claim 2
Dependent Claim
125 words
In a flame cutting machine having a cutting torch for subdividing continuously prepared casting strands with an arrangement including a suction head for removal of smoke gases, slag and the like produced during the cutting process, the improvement being said suction head and said cutting torch being mounted for joint movement together, said suction head including a housing having plurality of walls and end faces, said end faces being open to permit the casting strand to pass longitudinally through said housing, said walls of said housing defining a cutting zone therebetween, said cutting torch extending through one of said walls of said housing and into said cutting zone, and said housing surrounding said cutting zone to completely envelop the casting strand in said cutting zone.
Claim 3
Dependent Claim
37 words
In a flame cutting machine according to claim 1, characterized by the fact that said walls include an upper wall, a slit in said upper wall, and said torch extending through said slit and into said housing.
Claim 4
Dependent Claim
29 words
In a flame cutting machine according to claim 2, characterized by the fact that a cover plate is mounted to said torch, and said cover plate covering said slit.
Claim 5
Dependent Claim
38 words
In a flame cutting machine according to claim 3, characterized by the fact that an outlet duct communicates with the interior of said housing, and said outlet duct having a free end which terminates in a settling tank.
Claim 6
Dependent Claim
44 words
In a flame cutting machine according to claim 4, characterized in the fact that a branch duct is connected to and communicates with said outlet duct a ventilator being in said branch duct, and the free end of said branch duct having a filter.
Claim 7
Dependent Claim
32 words
In a flame cutting machine according to claim 5, characterized in the fact that said branch duct contains a longitudinally telescopic connecting piece whereby the length of said branch duct is adjustable.
Claim 8
Dependent Claim
38 words
In a flame cutting machine according to claim 1, characterized by the fact that an outlet duct communicates with the interior of said housing, and said outlet duct having a free end which terminates in a settling tank.
Claim 9
Dependent Claim
44 words
In a flame cutting machine according to claim 7, characterized in the fact that a branch duct is connected to and communicates with said outlet duct, a ventilator being in said branch duct, and the free end of said branch duct having a filter.
Claim 10
Dependent Claim
32 words
In a flame cutting machine according to claim 8, characterized in the fact that said branch duct contains a longitudinally telescopic connecting piece whereby the length of said branch duct is adjustable.
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) | 1982-03-12 | 1982-09-11 | 1983-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-03-12 | 1986-09-11 | 1987-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-03-12 | 1990-09-11 | 1991-03-13 | $7700.00 | Window Closed / Lapsed |