US3620455A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Easily repairable gas injection lance
Assignee: Berry Metal Co
•
Filing: 1970-06-10
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Granted: 1971-11-16
•
Expires: 1990-06-10
Abstract
Abstract A gas lance for oxygen or for a mixture of oxygen and fuel, including a lance top adapter assembly, a nozzle head and three or four concentrically positioned pipes wherein mixing of the oxygen and any other fluids are prevented, except that where fuel fluid is used, the oxygen and fuel fluids are mixed in the nozzle ejection chambers, and wherein there is included, in the lance top adapter assembly, safety means for venting to the atmosphere any leaking oxygen and oxygen-containing mixtures. The lance top adapter assembly includes the combination of a bushing member, a piston sleeve and a bushing sleeve and also includes means for sealing the piston sleeve and the bushing member, means for sealing the bushing sleeve and the piston sleeve, and means for sealing the bushing sleeve and quick disconnect means for quickly and easily removing the lance top adapter assembly from the oxygen lance, all against the flow of fluid or any combination of fluids therebetween. Said sealing means include O-ring structures. The bushing sleeve is easily removed and interchangeable and can be easily removed and replaced or repaired when any scoring occurs in any slip joint or sealing means. The structure is such that oxygen and any other fluid cannot be mixed within the lance proper for the reason that any other fluid, should there be leakage thereof, will first pass to the atmosphere at negative pressure before it will flow into the oxygen channels under positive pressure and also for the reason that the oxygen, should there be leakage thereof, will first pass to the atmosphere at negative pressure before it will pass into any other fluid within the lance proper under positive pressure.
Inventors
- 👤 William W Berry
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: 53
Claim 1
Independent Claim
9 words
a bushing sleeve spaced apart from said bushing member,
Claim 2
Dependent Claim
53 words
An oxygen lance comprising a lance top adapter assembly, a nozzle head, and three concentrically positioned pipes including a centrally positioned pipe, an intermediate pipe, and an outer pipe, each of said pipes being operatively connected to said lance top adapter assembly and to said nozzle head, said lance top adapter assembly including
Claim 3
Dependent Claim
10 words
a bushing sleeve laterally spaced apart from said bushing member,
Claim 4
Dependent Claim
11 words
a bushing sleeve laterally spaced apart from said first bushing member,
Claim 5
Dependent Claim
17 words
a piston sleeve positioned between and in slideable engagement with said bushing member and said bushing sleeve,
Claim 6
Dependent Claim
38 words
The oxygen lance of claim 2 wherein said means for sealing said piston sleeve and said bushing member against the flow of fluid therebetween includes an O-ring structure in contact with said piston sleeve and said bushing member.
Claim 7
Dependent Claim
17 words
a piston sleeve positioned between and in slideable engagement with said bushing member and said bushing sleeve,
Claim 8
Dependent Claim
17 words
a piston sleeve positioned between and in slideable engagement with said bushing member and said bushing sleeve,
Claim 9
Dependent Claim
16 words
means for sealing said piston sleeve and said bushing member against the flow of fluid therebetween,
Claim 10
Dependent Claim
16 words
means for sealing said piston sleeve and said bushing member against the flow of fluid therebetween,
Claim 11
Dependent Claim
70 words
The oxygen lance of claim 2 wherein said means for sealing said piston sleeve and said bushing member against the flow of fluid therebetween includes an O-ring structure in contact with said piston sleeve and said bushing member and said means for sealing said bushing sleeve and said piston sleeve against the flow of fluid therebetween includes an O-ring structure in contact with said bushing sleeve and said piston sleeve.
Claim 12
Dependent Claim
21 words
a second bushing member being axially spaced apart from said bushing sleeve, and laterally spaced apart from said centrally positioned pipe,
Claim 13
Dependent Claim
17 words
means for sealing said piston sleeve and said first bushing member against the flow of fluid therebetween,
Claim 14
Dependent Claim
102 words
The oxygen lance of claim 2 wherein said means for sealing said piston and said bushing member against the flow of fluid therebetween includes an O-ring structure in contact with said piston sleeve and said bushing member, said means for sealing said bushing sleeve and said piston sleeve against the flow of fluid therebetween includes an O-ring structure in contact with said bushing sleeve and said piston sleeve, and said means for sealing said bushing sleeve and said quick disconnect means against the flow of fluid therebetween includes an O-ring structure in contact with said bushing sleeve and said quick disconnect means.
Claim 15
Dependent Claim
16 words
means for sealing said bushing sleeve and said piston sleeve against the flow of fluid therebetween,
Claim 16
Dependent Claim
16 words
means for sealing said bushing sleeve and said piston sleeve against the flow of fluid therebetween,
Claim 17
Dependent Claim
16 words
quick disconnect means for quickly and easily removing said lance top assembly from said gas lance,
Claim 18
Dependent Claim
16 words
quick disconnect means for quickly and easily removing said lance top assembly from said oxygen lance,
Claim 19
Dependent Claim
46 words
The oxygen lance of claim 2 wherein said means for feeding oxygen into said lance includes a pipe sleeve and a pipe reducer member, said pipe sleeve being operatively connected to said bushing member and said pipe reducer member being operatively connected to said pipe sleeve.
Claim 20
Dependent Claim
53 words
quick disconnect means for quickly and easily removing said lance top assembly from said oxygen-fuel lance, said quick disconnect means including a pipe body member adjacent to at least a portion of said bushing sleeve, said second bushing member being in slideable engagement with at least a portion of said pipe body member,
Claim 21
Dependent Claim
18 words
The oxygen lance of claim 2 wherein said centrally positioned pipe is operatively connected to said piston sleeve.
Claim 22
Dependent Claim
17 words
means for sealing said bushing sleeve and said quick disconnect means against the flow of fluid therebetween,
Claim 23
Dependent Claim
17 words
means for sealing said bushing sleeve and said quick disconnect means against the flow of fluid therebetween,
Claim 24
Dependent Claim
16 words
means for sealing said bushing sleeve and said piston sleeve against the flow of fluid therebetween,
Claim 25
Dependent Claim
18 words
means for sealing said second bushing member and said pipe body member against the flow of fluid therebetween,
Claim 26
Dependent Claim
8 words
means for feeding cooling fluid into said lance,
Claim 27
Dependent Claim
8 words
means for feeding cooling fluid into said lance,
Claim 28
Dependent Claim
39 words
The oxygen lance of claim 2 wherein said intermediate pipe and said nozzle head are operatively connected by means of a slip joint structure, whereby said centrally positioned pipe and said intermediate pipe are movable independently of each other.
Claim 29
Dependent Claim
72 words
The oxygen lance of claim 2 wherein said intermediate pipe and said nozzle head are operatively connected by means of a slip joint structure, and wherein said means for sealing said piston sleeve and said bushing member against the flow of fluid therebetween includes an O-ring structure in contact with said piston sleeve and said bushing member, whereby said centrally positioned pipe and said intermediate pipe are movable independently of each other.
Claim 30
Dependent Claim
7 words
means for feeding oxygen into said lance,
Claim 31
Dependent Claim
7 words
means for feeding oxygen into said lance,
Claim 32
Dependent Claim
17 words
means for sealing said bushing sleeve and said quick disconnect means against the flow of fluid therebetween,
Claim 33
Dependent Claim
8 words
means for feeding cooling fluid into said lance,
Claim 34
Dependent Claim
41 words
means for exiting return cooling fluid from said lance, whereby at least said centrally positioned pipe is axially movable independently of said outer pipe and whereby mixing of the oxygen fluid and any other fluid, including coolant fluid, is prevented, and
Claim 35
Dependent Claim
39 words
means for exiting return cooling fluid from said lance, whereby at least said centrally positioned pipe is axially movable independently of said intermediate and outer pipes and whereby entrainment of the cooling fluid in the oxygen is prevented, and
Claim 36
Dependent Claim
80 words
The oxygen lance of claim 2 wherein said intermediate pipe and said nozzle head are operatively connected by means of a slip joint structure, and wherein said means for feeding oxygen into said lance includes a pipe sleeve and a pipe reducer member, said pipe sleeve being operatively connected to said bushing member and said pipe reducer member being operatively connected to said pipe sleeve, whereby said centrally positioned pipe and said intermediate pipe are movable independently of each other.
Claim 37
Dependent Claim
51 words
The oxygen lance of claim 2 wherein said intermediate pipe and said nozzle head are operatively connected by means of a slip joint structure and said centrally positioned pipe is operatively connected to said piston sleeve, whereby said centrally positioned pipe and said intermediate pipe are movable independently of each other.
Claim 38
Dependent Claim
19 words
safety means for venting to the atmosphere any leaking cooling fluid, oxygen, or cooling fluid entrained in the oxygen.
Claim 39
Dependent Claim
13 words
safety means for venting to the atmosphere any leaking oxygen and oxygen-containing mixtures.
Claim 40
Dependent Claim
7 words
means for feeding oxygen into said lance,
Claim 41
Dependent Claim
7 words
means for feeding fuel into said lance,
Claim 42
Dependent Claim
56 words
An oxygen-fuel lance comprising a lance top adapter assembly, a nozzle head, and four concentrically positioned pipes including a centrally positioned pipe, a second pipe, an intermediate pipe, and an outer pipe, each of said pipes being operatively connected to said lance top adapter assembly and to said nozzle head, said lance top adapter assembly including
Claim 43
Dependent Claim
46 words
means for exiting return cooling fluid from said lance, whereby at least said centrally positioned pipe and said second pipe are axially movable independently of said intermediate pipe and said outer pipe and whereby mixing of the fuel fluid, oxygen and coolant fluid is prevented, and,
Claim 44
Dependent Claim
18 words
The oxygen-fuel lance of claim 12 wherein said second bushing member is operatively connected to said second pipe.
Claim 45
Dependent Claim
30 words
The oxygen-fuel lance of claim 12 wherein said second bushing member is operatively connected to said second pipe and said piston sleeve is operatively connected to said centrally positioned pipe.
Claim 46
Dependent Claim
19 words
safety means for venting to the atmosphere any leaking oxygen, fuel fluid or fuel fluid entrained in the oxygen.
Claim 47
Dependent Claim
40 words
The oxygen-fuel lance of claim 12 wherein said means for sealing said piston sleeve and said first bushing member against the flow of fluid therebetween includes an O-ring structure in contact with said piston sleeve and said first bushing member.
Claim 48
Dependent Claim
72 words
The oxygen-fuel lance of claim 12 wherein said means for sealing said piston sleeve and said first bushing member against the flow of fluid therebetween includes an O-ring structure in contact with said piston sleeve and said first bushing member and said means for sealing said bushing sleeve and said piston sleeve against the flow of fluid therebetween includes an O-ring structure in contact with said bushing sleeve and said piston sleeve.
Claim 49
Dependent Claim
107 words
The oxygen-fuel lance of claim 12 whErein said means for sealing said piston sleeve and said first bushing member against the flow of fluid therebetween includes an O-ring structure in contact with said piston sleeve and said first bushing member, said means for sealing said bushing sleeve and said piston sleeve against the flow of fluid therebetween includes an O-ring structure in contact with said bushing sleeve and said piston sleeve and said means for sealing said second bushing member and said pipe body member against the flow of fluid therebetween includes an O-ring structure in contact with said second bushing member and said pipe body member.
Claim 50
Dependent Claim
140 words
The oxygen-fuel lance of claim 12 wherein said means for sealing said piston sleeve and said first bushing member against the flow of fluid therebetween includes an O-ring structure in contact with said piston sleeve and said first bushing member, said means for sealing said bushing sleeve and said piston sleeve against the flow of fluid therebetween includes an O-ring structure in contact with said bushing sleeve and said piston sleeve, said means for sealing said second bushing member and said pipe body member against the flow of fluid therebetween includes an O-ring structure in contact with said second bushing member and said pipe body member and said means for sealing said bushing sleeve and said quick disconnect means against the flow of fluid therebetween includes an O-ring structure in contact with said bushing sleeve and said quick disconnect means.
Claim 51
Dependent Claim
47 words
The oxygen-fuel lance of claim 12 wherein said means for feeding oxygen into said lance includes a pipe sleeve and a pipe reducer member, said pipe sleeve being operatively connected to said first bushing member and said pipe reducer member being operatively connected to said pipe sleeve.
Claim 52
Dependent Claim
24 words
The oxygen-fuel lance of claim 12 wherein said intermediate pipe and said nozzle head are operatively connected by means of a slip joint structure.
Claim 53
Dependent Claim
37 words
The oxygen-fuel lance of claim 12 wherein said second bushing member is operatively connected to said second pipe and wherein said intermediate pipe and said nozzle head are operatively connected by means of a slip joint structure.
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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) | 1974-11-15 | 1975-05-17 | 1975-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-15 | 1979-05-17 | 1979-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-15 | 1983-05-17 | 1983-11-16 | $7700.00 | Window Closed / Lapsed |