US3559974A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oxygen lances having a high resistance to deterioration and multipiece nozzle heads therefor
Assignee: Berry Metal Co
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Filing: 1969-03-03
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Granted: 1971-02-02
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Expires: 1989-03-03
Abstract
Abstract Oxygen lances having a high resistance to deterioration comprising a shank and a multipiece nozzle connected thereto wherein the multipiece nozzle includes a worked metal, e.g. copper, base portion, worked metal, e.g. copper, oxygen conduits and a cast metal, e.g. copper, body portion including oxygen conduit means connected to said worked metal, e.g. copper, oxygen conduits. The terminology ''''worked'''' means forged or pressed or formed or extruded or swaged. The so-worked copper utilized herein is free from oxygen, hydrogen, sulfur and any elements considered to be ''''tramp'''' elements with respect to copper, which elements by themselves, or in combination, could form precipitates that would migrate to the grain boundaries to lower the physical properties or cause grain separation.
Inventors
- 👤 Walter V Berry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 04:25
CPC Classifications
C; C21; C21C; C21C5/00; C21C5/28; C21C5/42; C21C5/46; C21C5/4606
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
20 words
The oxygen lance of claim 1 wherein said cast metal is cast copper and said worked metal is worked copper.
Claim 2
Dependent Claim
18 words
The oxygen lance of claim 2 wherein said worked copper exit conduit means extends beyond said base portion.
Claim 3
Dependent Claim
29 words
The oxygen lance of claim 2 wherein said worked copper exit conduit means includes a plurality of worked copper exit conduit members each diverging from the lance vertical axis.
Claim 4
Dependent Claim
41 words
The oxygen lance of claim 2 wherein: said worked copper exit conduit means includes a plurality of worked copper exit conduit members each diverging from the lance vertical axis; each of said conduit members including a portIon having a parabolic profile.
Claim 5
Dependent Claim
17 words
The oxygen lance of claim 5 wherein each of said conduit members extends beyond said base portion.
Claim 6
Dependent Claim
98 words
A multipiece nozzle head for an oxygen lance having a high resistance to deterioration, comprising, in combination: duct means for passing oxygen therethrough and then therefrom, said duct means including: cast metal entry conduit means and worked metal exit conduit means; a worked metal base portion; cast metal means for circulating coolant therethrough in heat exchange relationship with said oxygen duct means and said base portion; said worked metal exit means being connected at one end portion thereof to said worked metal base portion and at the other end portion thereof to said cast metal entry conduit means.
Claim 7
Dependent Claim
20 words
The nozzle head of claim 7 wherein said cast metal is cast copper and said worked metal is worked copper.
Claim 8
Dependent Claim
18 words
The nozzle head of claim 8 wherein said worked copper exit conduit means extends beyond said base portion.
Claim 9
Dependent Claim
30 words
The nozzle head of claim 8 wherein said worked copper exit conduit means includes a plurality of worked copper exit conduit members each diverging from the nozzle head vertical axis.
Claim 10
Dependent Claim
43 words
The nozzle head of claim 8 wherein: said worked copper exit conduit means includes a plurality of worked copper exit conduit members each diverging from the nozzle head vertical axis; and each of said conduit members including a portion having a parabolic profile.
Claim 11
Dependent Claim
17 words
The nozzle head of claim 11 wherein each of said conduit members extends beyond said base portion.
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) | 1974-02-01 | 1974-08-03 | 1975-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-01 | 1978-08-03 | 1979-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-01 | 1982-08-03 | 1983-02-02 | $7700.00 | Window Closed / Lapsed |