Patent US3746375A successfully refreshed from Google Patents.
US3746375A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure containment penetration nozzle
Assignee: General Electric Co
•
Filing: 1969-09-10
•
Granted: 1973-07-17
•
Expires: 1989-09-10
Abstract
Abstract A pre-prepared penetration nozzle for passing electrical conductors or pipes through the walls of a pressure containment vessel which eliminates the necessity of field preparation of weld surfaces.
Inventors
- 👤 F Funk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 06:43
CPC Classifications
H; H02; H02G; H02G3/00; H02G3/22; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49428; Y10T29/49432
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
249 words
A penetration nozzle for a containment vessel comprising: an elongated hollow nozzle member having a body portion of substantially uniform outside diameter; a first prepared weld surface at one end of said member; a first flange for welding to said first prepared weld surface, said first flange having a cylindrical portion of inside diameter less than said outside diameter of said body portion of said member; a first prepared flange receiving surface at said one end of said member outboard of said first weld surface, said first flange receiving surface having an outside diameter about equal to the inside diameter of said first flange so that said first flange fits over said first flange receiving surface and is located thereby adjacent said first weld surface; a second prepared weld surface at the other end of said member; a second flange for welding to said second prepared weld surface, said second flange having a cylindrical portion of inside diameter less than said outside diameter of said body portion of said member; a second prepared flange receiving surface at said other end of said member outboard of said second weld surface, said second flange receiving surface having an outside diameter about equal to the inside diameter of said portion of said second flange so that said second flange fits over said second flange receiving surface and is located thereby adjacent said second weld surface; and a longitudinal extension from said second flange receiving surface for receiving a temporary nozzle sealing member.
Claim 2
Dependent Claim
249 words
A penetration nozzle for a containment vessel comprising: an elongated hollow nozzle member having a body portion of substantially uniform outside diameter; a first prepared weld surface at one end of said member; a first flange for welding to said first prepared weld surface, said first flange having a cylindrical portion of inside diameter less than said outside diameter of said body portion of said member; a first prepared flange receiving surface at said one end of said member outboard of said first weld surface, said first flange receiving surface having an outside diameter about equal to the inside diameter of said first flange so that said first flange fits over said first flange receiving surface and is located thereby adjacent said first weld surface; a second prepared weld surface at the other end of said member; a second flange for welding to said second prepared weld surface, said second flange having a cylindrical portion of inside diameter less than said outside diameter of said body portion of said member; a second prepared flange receiving surface at said other end of said member outboard of said second weld surface, said second flange receiving surface having an outside diameter about equal to the inside diameter of said portion of said second flange so that said second flange fits over said second flange receiving surface and is located thereby adjacent said second weld surface; and a longitudinal extension from said second flange receiving surface for receiving a temporary nozzle sealing member.
Claim 3
Dependent Claim
28 words
The penetration nozzle of claim 1 wherein the planes of said first and second prepared weld surfaces are at an angle to the longitudinal axis of said nozzle.
Claim 4
Dependent Claim
27 words
The penetration nozzle of claim 2 wherein said planes of said first and second flange receiving surfaces are substantially parallel to the longitudinal axis of said nozzle.
Claim 5
Dependent Claim
26 words
The penetration nozzle of claim 1 wherein said second weld surface and said second flange receiving surface are formed by a circumferential groove in said nozzle.
Claim 6
Dependent Claim
213 words
A penetration nozzle for a containment vessel comprising: an elongated hollow nozzle member having a body portion of substantially uniform outside diameter; a first prepared weld surface at one end of said member; a first flange for welding to said first prepared weld surface, said first flange including a cylindrical portion of inside diameter less than the outside diameter of said body portion of said member; a first longitudinal extension welded to said first weld surface and having at least a portion thereof adjacent said first weld surface of outside diameter about equal to the inside diameter of said cylindrical portion of said first flange for receiving and locating said first flange adjacent said first weld surface; a second prepared weld surface at the other end of said member; a second flange for welding to said second prepared weld surface, said second flange including a cylindrical portion of inside diameter less than the outside diameter of said body portion of said member; a second longitudinal extension welded to said second weld surface and having at least a portion thereof adjacent said second weld surface of outside diameter about equal to the inside diameter of said cylindrical portion of said second flange for receiving and locating said second flange adjacent said second weld surface.
Claim 7
Dependent Claim
213 words
A penetration nozzle for a containment vessel comprising: an elongated hollow nozzle member having a body portion of substantially uniform outside diameter; a first prepared weld surface at one end of said member; a first flange for welding to said first prepared weld surface, said first flange including a cylindrical portion of inside diameter less than the outside diameter of said body portion of said member; a first longitudinal extension welded to said first weld surface and having at least a portion thereof adjacent said first weld surface of outside diameter about equal to the inside diameter of said cylindrical portion of said first flange for receiving and locating said first flange adjacent said first weld surface; a second prepared weld surface at the other end of said member; a second flange for welding to said second prepared weld surface, said second flange including a cylindrical portion of inside diameter less than the outside diameter of said body portion of said member; a second longitudinal extension welded to said second weld surface and having at least a portion thereof adjacent said second weld surface of outside diameter about equal to the inside diameter of said cylindrical portion of said second flange for receiving and locating said second flange adjacent said second weld surface.
Claim 8
Dependent Claim
28 words
The penetration nozzle of claim 5 wherein the planes of said first and second prepared weld surfaces are at an angle to the longitudinal axis of said nozzle.
Claim 9
Dependent Claim
38 words
The penetration nozzle of claim 5 wherein said second extension includes an end portion for receiving a temporary nozzle sealing member which may be cut off to remove said sealing member without detriment to said second weld surface.
Claim 10
Dependent Claim
53 words
The penetration nozzle of claim 5 wherein at least one of said extensions is formed with a closed outboard end for temporarily sealing said nozzle and wherein said one of said extensions is of sufficient length so that said closed outboard end may be cut off without detriment to the adjacEnt weld surface.
Claim 11
Dependent Claim
21 words
The penetration nozzle of claim 5 further including cylindrical flange extension longitudinally positioned within a central bore of said first flange.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-16 | 1977-01-15 | 1977-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-16 | 1981-01-15 | 1981-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-16 | 1985-01-15 | 1985-07-17 | $7700.00 | Window Closed / Lapsed |