US3566124A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Miniaturized radioisotope generator
Assignee: Union Carbide Corp
•
Filing: 1968-04-12
•
Granted: 1971-02-23
•
Expires: 1988-04-12
Abstract
Abstract A nonshielded, miniaturized radioisotope generator for the production of radioisotopes having a nonhazardous level of radioactivity is comprised of a closed container having an entrance port at one end, an exit port at the other end, and inner chamber communicating with the entrance and exit ports and an elutable radioactive material disposed in the generator in such a manner that the eluate can be withdrawn without contamination by the radioactive source.
Inventors
- 👤 Wayne J Gemmill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:39
CPC Classifications
G; G21; G21G; G21G4/00; G21G4/04; G21G4/06
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
172 words
A miniaturized radioisotope generator for the production of radioisotopes said generator comprised of in combination: a. a first section having (i) an open end and (ii) a closed end fitted with an entrance port communicating inwardly by an inner chamber with said open end, and said open end having connecting means to a second section; b. a second section having (i) an open end and (ii) a closed end fitted with an exit port communicating inwardly by an inner chamber with said open end, and said open end having connecting means to said first section; at least one of said closed ends of said first and second section being inwardly recessed and said port protrudes outwardly therefrom and is so disposed as not to extend beyond the surface formed by the outer peripheral edge of said closed end; and c. an elutable radioactive material disposed in said generator, said radioactive material being present in an amount up to the general licensed amount permitted under title 10 CFR 31 section 31.100 Schedule A.
Claim 2
Dependent Claim
172 words
A miniaturized radioisotope generator for the production of radioisotopes said generator comprised of in combination: a. a first section having (i) an open end and (ii) a closed end fitted with an entrance port communicating inwardly by an inner chamber with said open end, and said open end having connecting means to a second section; b. a second section having (i) an open end and (ii) a closed end fitted with an exit port communicating inwardly by an inner chamber with said open end, and said open end having connecting means to said first section; at least one of said closed ends of said first and second section being inwardly recessed and said port protrudes outwardly therefrom and is so disposed as not to extend beyond the surface formed by the outer peripheral edge of said closed end; and c. an elutable radioactive material disposed in said generator, said radioactive material being present in an amount up to the general licensed amount permitted under title 10 CFR 31 section 31.100 Schedule A.
Claim 3
Dependent Claim
12 words
The miniaturized generator of claim 1 which contains 9 microcuries of tin-113.
Claim 4
Dependent Claim
12 words
The miniaturized generator of claim 1 which contains 0.9 microcuries of Cesium-137.
Claim 5
Dependent Claim
221 words
A miniaturized radioisotope generator for the production of radioisotopes said generator having an overall length of less than 3 inches and comprised of, in combination: a. a cylindrical first section having (i) an open end and (ii) a closed end fitted with an entrance port communicating inwardly by an inner chamber with said open end, said entrance port disposed so as not to extend beyond the surface of the outer circumferential edge of said cylindrical first section, of said cylinder having retention means for a first filter which covers said inner chamber, and said open end having connecting means to a second section; b. a cylindrical second section having an open end and a closed inwardly recessed end from which outwardly protrudes a hollow, exit port communicating inwardly by an inner chamber with said open end, said exit port disposed so as not to extend beyond the surface of the outer circumferential edge of said closed end, said open end of said cylinder having retention and support means for a second filter which covers said inner chamber, said open end having connecting means to said first section; and, c. an elutable radioactive material disposed in said generator, said radioactive material being present in an amount up to the general licensed amount permitted under title 10 CFR 31 section 31.100 Schedule A.
Claim 6
Dependent Claim
221 words
A miniaturized radioisotope generator for the production of radioisotopes said generator having an overall length of less than 3 inches and comprised of, in combination: a. a cylindrical first section having (i) an open end and (ii) a closed end fitted with an entrance port communicating inwardly by an inner chamber with said open end, said entrance port disposed so as not to extend beyond the surface of the outer circumferential edge of said cylindrical first section, of said cylinder having retention means for a first filter which covers said inner chamber, and said open end having connecting means to a second section; b. a cylindrical second section having an open end and a closed inwardly recessed end from which outwardly protrudes a hollow, exit port communicating inwardly by an inner chamber with said open end, said exit port disposed so as not to extend beyond the surface of the outer circumferential edge of said closed end, said open end of said cylinder having retention and support means for a second filter which covers said inner chamber, said open end having connecting means to said first section; and, c. an elutable radioactive material disposed in said generator, said radioactive material being present in an amount up to the general licensed amount permitted under title 10 CFR 31 section 31.100 Schedule A.
Claim 7
Dependent Claim
18 words
The miniaturized generator of claim 4 wherein said filters have a porosity of less than about 15 microns.
Claim 8
Dependent Claim
18 words
The miniaturized generator of claim 4 wherein said filters have a porosity of less than about 1 micron.
Claim 9
Dependent Claim
16 words
The miniaturized generator of claim 4 having attached to the entrance port a reservoir of eluant.
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) | 1974-02-22 | 1974-08-24 | 1975-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-22 | 1978-08-24 | 1979-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-22 | 1982-08-24 | 1983-02-23 | $7700.00 | Window Closed / Lapsed |