US3858860A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pipe quench head
Assignee: National Oilwell Varco LP
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Filing: 1973-11-08
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Granted: 1975-01-07
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Expires: 1993-11-08
Abstract
Abstract The pipe quench head comprises an outer shell mounted on a frame and an inner shell mounted in the outer shell and the two are removably fastened together by suitable fastening means. There will be a plurality of inner shells to suit a particular material size or range of sizes. Each such inner shell is a spool-like element having front and back end plates to seal with mating areas on the outer shell to form a closed end annulus between the outer shell, the inner shell and its end plates. Each inner shell has drilled holes radially around the circumference and laterally in its length to accept spray nozzles mounted radially on the inside surface. A pipe connection on the outer shell connects to a suitable pumping system, the space between the inner and outer shells thereby comprising a supply plenum to receive a continuous supply of water or other coolant.
Inventors
- 👤 George W Randall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:25
CPC Classifications
C; C21; C21D; C21D1/00; C21D1/62; C21D1/667
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
401 words
A quench head comprising: an outer shell (10) having a cylindrical housing (11) and a pair of flanges (12) extending at least inwardly of the periphery of said housing, a first of said flanges being located at one end of said housing and a second of said flanges being located at the other end of said housing, that portion of said first flange which extends inwardly of said housing forming a first abutment means and having a centrally located first opening therein, that portion of said second flange which extends inwardly of said housing forming at least a part of a second abutment meAns and having a centrally located second opening therein, said second opening being larger than said first opening; and a plurality of interchangeable inner shells (24), each of said inner shells having a cylindrical housing conduit (25) and a pair of flanges (26, 27) extending outwardly from the periphery of said conduit, a first (27) of said conduit flanges being located at one end of said conduit and being of such size as to be able to pass through said second opening and abut said first abutment means, the second (26) of said conduit flanges being located at the other end of said conduit and being of such size as to abut said second abutment means when said first conduit flange abuts said first abutment means, said conduit having a plurality of nozzle means (28 - 30) extending therethrough and projecting inwardly thereof, said cylindrical housing conduits different from each other only in diameter and the outer diameters of said first and second conduit flanges of all of said cylindrical housing conduits being the same; first gasket means (34) between said first conduit flange and said first abutment means, and second gasket means (36) between said second conduit flange and said second abutment means, there being a plenum chamber (43) defined by the outer wall of said conduit, the inner wall of said outer shell, and said conduit flanges and said abutment means; clamp means (37, 42) for releasably clamping said inner, spool-like shell to said outer shell; and entrance means (23) for admitting a supply of coolant to said plenum chamber; said conduit extending between said first and said second openings; whereby an inner shell may be selected from said plurality of interchangeable inner shells in accordance with the diameter size of the cylindrical housing conduit desired.
Claim 2
Dependent Claim
401 words
A quench head comprising: an outer shell (10) having a cylindrical housing (11) and a pair of flanges (12) extending at least inwardly of the periphery of said housing, a first of said flanges being located at one end of said housing and a second of said flanges being located at the other end of said housing, that portion of said first flange which extends inwardly of said housing forming a first abutment means and having a centrally located first opening therein, that portion of said second flange which extends inwardly of said housing forming at least a part of a second abutment meAns and having a centrally located second opening therein, said second opening being larger than said first opening; and a plurality of interchangeable inner shells (24), each of said inner shells having a cylindrical housing conduit (25) and a pair of flanges (26, 27) extending outwardly from the periphery of said conduit, a first (27) of said conduit flanges being located at one end of said conduit and being of such size as to be able to pass through said second opening and abut said first abutment means, the second (26) of said conduit flanges being located at the other end of said conduit and being of such size as to abut said second abutment means when said first conduit flange abuts said first abutment means, said conduit having a plurality of nozzle means (28 - 30) extending therethrough and projecting inwardly thereof, said cylindrical housing conduits different from each other only in diameter and the outer diameters of said first and second conduit flanges of all of said cylindrical housing conduits being the same; first gasket means (34) between said first conduit flange and said first abutment means, and second gasket means (36) between said second conduit flange and said second abutment means, there being a plenum chamber (43) defined by the outer wall of said conduit, the inner wall of said outer shell, and said conduit flanges and said abutment means; clamp means (37, 42) for releasably clamping said inner, spool-like shell to said outer shell; and entrance means (23) for admitting a supply of coolant to said plenum chamber; said conduit extending between said first and said second openings; whereby an inner shell may be selected from said plurality of interchangeable inner shells in accordance with the diameter size of the cylindrical housing conduit desired.
Claim 3
Dependent Claim
21 words
The quench head of claim 1 in which said nozzle means are located both circumferentially about said conduit and laterally thereof.
Claim 4
Dependent Claim
37 words
The quench head of claim 1 in which said nozzle means includes a member (29) which is relatively blade-like in configuration whereby to spread the coolant as it passes interiorly of the conduit from the plenum chamber.
Claim 5
Dependent Claim
18 words
The quench head of claim 1 including brace means extending between said first and said second conduit flanges.
Claim 6
Dependent Claim
35 words
The quench head of claim 1 in which said inner, spool-like shell includes means (44) to receive a porter bar and the like for moving said inner, spool-like shell to and from said outer shall.
Claim 7
Dependent Claim
44 words
The quench head of claim 1 which said clamp means are located about the periphery of said second outer shell flange so as to clamp said second conduit flange to said second abutment means when said first conduit flange abuts said first abutment means.
Claim 8
Dependent Claim
19 words
The quench head of claim 1 including guard means (31) extending inwardly from the inner wall of said conduit.
Claim 9
Dependent Claim
46 words
A quench head system including at least one said quench head according to claim 1 and means (15) for moving material to be quenched along a path of travel centrally of said conduit, and including coolant moving means (21) for introducing coolant into said entrance means.
Claim 10
Dependent Claim
18 words
The system of claim 8 including means (14) for centering said outer shell about said path of travel.
Claim 11
Dependent Claim
65 words
The system of claim 8 including a plurality of the said quench heads according to claim 1, means for moving material to be quenched along a path of travel, said path of travel passing through all of the said conduits of the said quench heads, and means for centering all of the said outer shells of the said quench heads about said path of travel.
Claim 12
Dependent Claim
37 words
The system of claim 10 including a manifold (22) between said coolant moving means and each of the said entrance means which admits coolant to its respective said plenum chamber of each of the said quench heads.
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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) | 1978-01-06 | 1978-07-08 | 1979-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-06 | 1982-07-08 | 1983-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-06 | 1986-07-08 | 1987-01-07 | $7700.00 | Window Closed / Lapsed |