US3751669A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radiation shielding means joint and method of making same
Assignee: NUCLEAR ASSURANCE Corp A DE CORP
•
Filing: 1971-05-24
•
Granted: 1973-08-07
•
Expires: 1991-05-24
Abstract
Abstract A pair of radiation shielding members such as uranium castings are provided with tapered end portions which are positioned adjacent one another. The joint between the radiation shielding members includes a plurality of filler members disposed between said tapered portions and the filler members being positioned in contact with one another and radially outwardly of one another, the outer ones of said filler members overlapping inner ones of said filler members in a longitudinal direction. The filler members are welded to the tapered ends of the radiation shielding members along the opposite circumferentially extending edges of the filler members.
Inventors
- 👤 F Bush
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:10
CPC Classifications
G; G21; G21F; G21F5/00; G21F5/005; G21F5/008
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
61 words
A radiation shielding means joint comprising a pair of radiation shielding members to be joined end to end, the adjacent ends of said shielding members being of reduced thickness, a joint between adjacent ends of said shielding members, said joint including a pluraltiy of filler members and weld material connecting said filler members to adjacent ends of said radiation shielding members.
Claim 2
Dependent Claim
61 words
A radiation shielding means joint comprising a pair of radiation shielding members to be joined end to end, the adjacent ends of said shielding members being of reduced thickness, a joint between adjacent ends of said shielding members, said joint including a pluraltiy of filler members and weld material connecting said filler members to adjacent ends of said radiation shielding members.
Claim 3
Dependent Claim
25 words
A joint as defined in claim 1 wherein said radiation shielding members are castings formed of uranium, said filler members also being formed of uranium.
Claim 4
Dependent Claim
27 words
A joint as defined in claim 1 wherein each of said radiation shielding members includes adjacent tapered portions connected to said filler members by said weld material.
Claim 5
Dependent Claim
27 words
A joint as defined in claim 1 wherein each of said radiation shielding members includes adjacent stepped portions connected to said filler members by said weld material.
Claim 6
Dependent Claim
41 words
A joint as defined in claim 1 wherein said radiation shielding members are tubular and are disposed in end to end relationship with respect to one another, said filler members extending peripherally of the end portions of said radiation shielding members.
Claim 7
Dependent Claim
16 words
A joint as defined in claim 1 wherein said filler members are disposed successively radially outwardly.
Claim 8
Dependent Claim
16 words
A joint as defined in claim 6 wherein said filler members are disposed adjacent one another.
Claim 9
Dependent Claim
27 words
A joint as defined in claim 6 wherein radially outer ones of said filler members overlap and extend beyond opposite sides of the radially inwardly filler members.
Claim 10
Dependent Claim
25 words
A joint as defined in claim 1 wherein the thickness of each of said filler members is substantially less than the thickness of said members.
Claim 11
Dependent Claim
34 words
A joint as defined in claim 1 wherein said radiation shielding members have stepped surfaces in engagement with one another to prevent radiation beaming, said stepped surfaces being disposed inwardly of said filler members.
Claim 12
Independent Claim
95 words
The method of joining two radiation shielding members end to end comprising forming portions of reduced thickness on adjacent ends of said members and disposing said end portions of reduced thickness adjacent one another, placing filler means of a thickness less than the thickness of said radiation shielding members between said adjacent end portions, welding said filler means to said adjacent end portions, placing further filler means of a thickness less than thE thickness of said radiation shielding members between said adjacent end portions, and welding said further filler means to said adjacent end portions.
Claim 13
Independent Claim
95 words
The method of joining two radiation shielding members end to end comprising forming portions of reduced thickness on adjacent ends of said members and disposing said end portions of reduced thickness adjacent one another, placing filler means of a thickness less than the thickness of said radiation shielding members between said adjacent end portions, welding said filler means to said adjacent end portions, placing further filler means of a thickness less than thE thickness of said radiation shielding members between said adjacent end portions, and welding said further filler means to said adjacent end portions.
Claim 14
Dependent Claim
41 words
The method as defined in claim 11 wherein said further filler means is disposed radially outwardly of said first-mentioned filler means, each of said filler means being welded to said tapered portions along peripherally extending end edges of said filler means.
Claim 15
Dependent Claim
48 words
The method as defined in claim 11 including the step of welding said two radiation shielding members to one another along the tapered portions thereof throughout only a portion of the thickness of the radiation shielding members prior to placing said first-mentioned filler means between said tapered portions.
Claim 16
Dependent Claim
51 words
The method as defined in claim 11 wherein said shielding members are provided with stepped surfaces, placing said stepped surfaces in contact with one another, and then joining said shielding members to one another by a circumferential weld adjacent said stepped surfaces prior to placing a filler means between said portions.
References Cited (Backward Citations)
US3119933A
Cited
US3483381A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-08-06 | 1977-02-05 | 1977-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-06 | 1981-02-05 | 1981-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-06 | 1985-02-05 | 1985-08-07 | $7700.00 | Window Closed / Lapsed |