US3265898A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radiation-shielding system for wallpenetrating pipes
Assignee: Linde GmbH
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Filing: 1962-12-18
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Granted: 1966-08-09
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Expires: 1982-12-18
Abstract
No abstract record available.
Inventors
- 👤 Lehmer Wilhelm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:14
CPC Classifications
G; G21; G21C; G21C11/00; G21C11/02; G21C11/026; G21F; G21F3/00; Y; Y02; Y02E; Y02E30/00; Y02E30/30; Y10; Y10S; Y10S55/00; Y10S55/09
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
192 words
A SYSTEM FOR CONDUCTING FLUID BETWEEN A FIRST AREA CONTAMINATED WITH NUCLEAR RADIATION AND A SECOND AREA TO BE MAINAINED FREE OF RADIATION COMPRISING, IN COMBINATION WITH A WALL OF A MATERIAL ADAPTED TO ABSORB SAID RADIATION AND DISPOSED BETWEEN SAID AREAS, A FIRST TUBULAR MEMBER EXRENDING THROUGH SAID WALL AND OPENING ON OPPOSITE SIDES THEREOF FOR THE CONDUCTION OF FLUID BETWEEN SAID AREAS; FLUID-PERMEABLE MEANS AXIALLY SPACED ALONG SAID FIRST MEMBER IN THE REGION OF SAID WALL FOR DEFINING AN ENLONGATED COMPARTMENT IN SAID FIRST MEMBER EXTENDING OVER AT LEAST A SUBSTANTIAL FRACTION OF THE THICKNESS OF SAID WALL; A SECOND TUBULAR MEMBER EXTENDING THROUGH SAID FIRST TUBULAR MEMBER WITH ALL-AROUND CLEARANCE AND OPENING ON OPPOSITE SIDES OF SAID WALL FOR CONDUCTING FLUID BETWEEN SAID AREAS, SAID SECOND MEMBER BEING PROVIDED WITH MEANS FORMING A TORTUOUS PATH FOR THE FLUID CONDUCTED THERETHROUGH, THEREBY IMPEDING TRANSMISSION OF RADIATION THROUGH SAID SECOND MEMBER; AND A FLUID-PERMEABLE PACKING OF NON-COHERENT DISCRETE NUCLEAR-RADIATION-ABSORBENT BODIES COMPLETELY FILLING SAID COMPARTMENT IN THE CLEARANCE BETWEEN SAID SECOND TUBULAR MEMBER AND SAID FIRST TUBULAR MEMBER AND FORMING BETWEEN THEM A MULTIPLICITY OF SMALL TORTUOUS CHANNELS EXTENDING THROUGH SAID COMPARTMENT.
Claim 2
Independent Claim
192 words
A SYSTEM FOR CONDUCTING FLUID BETWEEN A FIRST AREA CONTAMINATED WITH NUCLEAR RADIATION AND A SECOND AREA TO BE MAINAINED FREE OF RADIATION COMPRISING, IN COMBINATION WITH A WALL OF A MATERIAL ADAPTED TO ABSORB SAID RADIATION AND DISPOSED BETWEEN SAID AREAS, A FIRST TUBULAR MEMBER EXRENDING THROUGH SAID WALL AND OPENING ON OPPOSITE SIDES THEREOF FOR THE CONDUCTION OF FLUID BETWEEN SAID AREAS; FLUID-PERMEABLE MEANS AXIALLY SPACED ALONG SAID FIRST MEMBER IN THE REGION OF SAID WALL FOR DEFINING AN ENLONGATED COMPARTMENT IN SAID FIRST MEMBER EXTENDING OVER AT LEAST A SUBSTANTIAL FRACTION OF THE THICKNESS OF SAID WALL; A SECOND TUBULAR MEMBER EXTENDING THROUGH SAID FIRST TUBULAR MEMBER WITH ALL-AROUND CLEARANCE AND OPENING ON OPPOSITE SIDES OF SAID WALL FOR CONDUCTING FLUID BETWEEN SAID AREAS, SAID SECOND MEMBER BEING PROVIDED WITH MEANS FORMING A TORTUOUS PATH FOR THE FLUID CONDUCTED THERETHROUGH, THEREBY IMPEDING TRANSMISSION OF RADIATION THROUGH SAID SECOND MEMBER; AND A FLUID-PERMEABLE PACKING OF NON-COHERENT DISCRETE NUCLEAR-RADIATION-ABSORBENT BODIES COMPLETELY FILLING SAID COMPARTMENT IN THE CLEARANCE BETWEEN SAID SECOND TUBULAR MEMBER AND SAID FIRST TUBULAR MEMBER AND FORMING BETWEEN THEM A MULTIPLICITY OF SMALL TORTUOUS CHANNELS EXTENDING THROUGH SAID COMPARTMENT.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-08 | 1970-02-07 | 1970-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-08 | 1974-02-07 | 1974-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-08 | 1978-02-07 | 1978-08-09 | $7700.00 | Window Closed / Lapsed |