US3827632A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel and oxygen lance assembly
Assignee: Berry Metal Co
•
Filing: 1973-09-13
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Granted: 1974-08-06
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Expires: 1993-09-13
Abstract
Abstract A lance for oxygen or for a mixture of oxygen and fuel includes a five pipe adapter arrangement which permits some to be readily disassembled from its fuel, oxygen and water coolant sources in order to test the same for leaks or other malfunctions. The assembly also includes a central fuel pipe which is surrounded by an insulating pipe with the said pipes including upper sleeve elements of piston type design which are so assembled as to prevent the intermixture of fuel, oxygen, and water during the presence of leaks. The insulating pipe also provides an insulating space which can be easily pressure tested in order to determine the sealing integrity of the assembly.
Inventors
- 👤 N Rymarchyk
- 👤 L Meinert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:59
CPC Classifications
C; C21; C21C; C21C5/00; C21C5/28; C21C5/42; C21C5/46; C21C5/4606
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
225 words
A lance for oxygen or a mixture of oxygen and fuel comprising: a nozzle head, a lance top adapter assembly, a plurality of concentrically positioned pipes connected to said adapter assembly and said nozzle head and including, a first central fuel pipe, a second pipe providing an insulating space around said fuel pipe, a third pipe providing an oxygen conveying space around said second pipe, fourth and fifth pipes providing concentric coolant circulating spaces to direct coolant to and from said nozzle head, said lance top adapter assembly including a first sleeve connected to said first central pipe, means connecteD to said first sleeve for directing fuel to said first sleeve, a second sleeve connected to said second pipe, a third sleeve including first means removable connecting said third sleeve to said third pipe, first seal means between said fuel directing means and said first sleeve for sealing first pipe, second seal means between said first sleeve and said second sleeve for sealing said insulating space, a third seal means between said second sleeve and said third sleeve for sealing said oxygen conveying space, second means removably connecting said fourth pipe to said third pipe, and third means removably connecting said fifth pipe to said fourth pipe, said first, second and third removable means providing for quick disconnect of said pipes relative to one another.
Claim 2
Dependent Claim
225 words
A lance for oxygen or a mixture of oxygen and fuel comprising: a nozzle head, a lance top adapter assembly, a plurality of concentrically positioned pipes connected to said adapter assembly and said nozzle head and including, a first central fuel pipe, a second pipe providing an insulating space around said fuel pipe, a third pipe providing an oxygen conveying space around said second pipe, fourth and fifth pipes providing concentric coolant circulating spaces to direct coolant to and from said nozzle head, said lance top adapter assembly including a first sleeve connected to said first central pipe, means connecteD to said first sleeve for directing fuel to said first sleeve, a second sleeve connected to said second pipe, a third sleeve including first means removable connecting said third sleeve to said third pipe, first seal means between said fuel directing means and said first sleeve for sealing first pipe, second seal means between said first sleeve and said second sleeve for sealing said insulating space, a third seal means between said second sleeve and said third sleeve for sealing said oxygen conveying space, second means removably connecting said fourth pipe to said third pipe, and third means removably connecting said fifth pipe to said fourth pipe, said first, second and third removable means providing for quick disconnect of said pipes relative to one another.
Claim 3
Dependent Claim
61 words
The invention in accordance with claim 1, said third sleeve having a venting space sealed by said first, second and third seal means from said first pipe, said insulating space and said oxygen conveying space, and vent means venting said space to the atmosphere, said vent means including, a removable plug having an opening communicating with said space and the atmosphere.
Claim 4
Dependent Claim
42 words
The invention in accordance with claim 1, said means for directing fuel to said first sleeve including a stub pipe section mating with said first sleeve and said first seal means being disposed between said stub pipe section and said first sleeve.
Claim 5
Dependent Claim
33 words
The invention in accordance with claim 1, said second pipe including an opening having removable closure means adapted to be removed for providing communication between said insulating space and said oxygen conveying space.
Claim 6
Dependent Claim
45 words
The invention in accordance with claim 1, said third sleeve having a venting space sealed by said first, second and third seal means, said venting space and said first sleeve including a passage adapted to provide communication between said insulating space and said venting space.
Claim 7
Dependent Claim
13 words
The invention in accordance with claim 5, said passage including removable closure means.
Claim 8
Dependent Claim
133 words
The invention in accordance with claim 1, said second means connecting said fourth pipe to said third pipe, including a first flange connected to said third pipe, a second flange connected to said fourth pipe, said third pipe terminating below said flanges, a fourth sleeve connected to the terminal end of said third sleeve, a fifth sleeve in sliding engagement with said fourth sleeve, a pipe extension connected to said fifth sleeve, said pipe extension providing a continuation of said third pipe and said oxygen conveying space, a sixth sleeve disposed between said fifth sleeve and said fourth pipe, said sixth sleeve having a third flange removably secured between said first and second flanges, and seal means between said fourth, fifth and sixth sleeves for sealing said oxygen space from said coolant space.
Claim 9
Dependent Claim
21 words
The invention in accordance with claim 7, including seal means between said third and second flanges for sealing said coolant space.
Claim 10
Dependent Claim
41 words
The invention in accordance with claim 8, said first flange, a portion of said sixth sleeve, said third pipe, and said fourth and fifth sleeves defining a second venting space, and second means venting said second venting space to the atmosphere.
Claim 11
Dependent Claim
22 words
The invention in accordance with claim 9, said second venting means including a passage in said third flange of said sixth sleeve.
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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) | 1977-08-05 | 1978-02-04 | 1978-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-05 | 1982-02-04 | 1982-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-05 | 1986-02-04 | 1986-08-06 | $7700.00 | Window Closed / Lapsed |