US4869299A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radioactivity shielding transportation assembly and method
Assignee: Halliburton Co
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Filing: 1988-10-11
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Granted: 1989-09-26
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Expires: 2008-10-11
Abstract
Abstract A method of transferring radioactive substance wherein a radioactivity shielding assembly, suitable for transferring a radioactive substance with a reduced risk of human exposure and environmental contamination, includes a protective shield casing having a reservoir disposed in the casing for receiving the radioactive substance. Associated with the casing is a coupling structure for coupling the reservoir and casing directly to a receiver into which the radioactive substance is to be transferred. The casing includes a side shielding structure in which the reservoir is retained and two end shield structures which are removably attached to the side shield structure. The two end shield structures are removed from the side shield structure at the location at which the radioactive substance is to be discharged, but such removal leaves the reservoir protectively received in the side structure to maintain continued protection against radioactive exposure or contamination.
Inventors
- 👤 Wayne A. Handke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:23
CPC Classifications
G; G21; G21F; G21F5/00; G21F5/015; G21F5/018; Y; Y10; Y10S; Y10S220/00; Y10S220/21; Y10S604/00; Y10S604/905
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
236 words
A method of transferring a radioactive substance, comprising the steps of: providing a syringe comprising a syringe body having a longitudinal chamber defined therein, a plug slidably disposed in said chamber and sealingly engaged therewith, and a hollow needle attached to the syringe body in communication with the chamber; providing a protective radioactivity shielding container comprising a cylindrical body portion which houses said syringe, a first cap for enclosing the cylindrical body portion at an end opposite to said hollow needle, a second cap constructed from a single member for enclosing the cylindrical body portion at an end adjacent to said hollow needle, and a cushion portion disposed within said second cap; moving the radioactive substance into said syringe housed within said protective radioactivity shielding container; supporting the syringe within the container, said step of supporting comprises attaching said first cap to the end of said cylindrical body portion opposite said hollow needle, and attaching said second cap to the end of said cylindrical body portion adjacent said hollow needle such that said hollow needle is received by said cushion portion thereby providing support to said hollow needle; transporting the container having the radioactive substance stored therein, over great distances to a receiver into which the radioactive substance is to be transferred; mounting the container on the receiver; and moving the radioactive substance from said syringe into the receiver without removing said syringe from the container.
Claim 2
Independent Claim
236 words
A method of transferring a radioactive substance, comprising the steps of: providing a syringe comprising a syringe body having a longitudinal chamber defined therein, a plug slidably disposed in said chamber and sealingly engaged therewith, and a hollow needle attached to the syringe body in communication with the chamber; providing a protective radioactivity shielding container comprising a cylindrical body portion which houses said syringe, a first cap for enclosing the cylindrical body portion at an end opposite to said hollow needle, a second cap constructed from a single member for enclosing the cylindrical body portion at an end adjacent to said hollow needle, and a cushion portion disposed within said second cap; moving the radioactive substance into said syringe housed within said protective radioactivity shielding container; supporting the syringe within the container, said step of supporting comprises attaching said first cap to the end of said cylindrical body portion opposite said hollow needle, and attaching said second cap to the end of said cylindrical body portion adjacent said hollow needle such that said hollow needle is received by said cushion portion thereby providing support to said hollow needle; transporting the container having the radioactive substance stored therein, over great distances to a receiver into which the radioactive substance is to be transferred; mounting the container on the receiver; and moving the radioactive substance from said syringe into the receiver without removing said syringe from the container.
Claim 3
Dependent Claim
74 words
A method as defined in claim 1, wherein: the step of moving the radioactive substance into the syringe includes: positioning the container so that the needle is at least partially immersed into a source of the radioactive substance; and sliding the plug within the chamber from a position relatively closer to the needle to a position relatively farther from the needle until a desired quantity of the radioactive substance is received in the chamber.
Claim 4
Dependent Claim
71 words
A method as defined in claim 2, wherein the step of sliding the plug includes: attaching another plug to the first-mentioned plug and attaching a plunger rod to the second-mentioned plug; pulling the plunger rod until the first-mentioned plug is at the desired position; and detaching the plunger rod and the second-mentioned plug from the first-mentioned plug, leaving the first-mentioned plug within the chamber in sealing engagement with the syringe body.
Claim 5
Dependent Claim
38 words
A method as defined in claim 2, wherein the step of moving the radioactive substance from the syringe includes sliding the plug from the position relatively farther from the needle toward a position relatively closer to the needle.
Claim 6
Dependent Claim
60 words
A method as defined in claim 1, wherein: the step of mounting the container on the receiver includes: removing said second cap connected to the end of the cylindrical body portion adjacent said needle; and engaging the end of the cylindrical body portion, adjacent said needle, with the receiver so that the needle is in direct communication with the receiver.
Claim 7
Dependent Claim
74 words
A method as defined in claim 5, wherein the step of moving the radioactive substance from the syringe includes: removing said first cap; and sliding the plug within the chamber from a position relatively farther away from the needle to a position relatively closer to the needle thereby ejecting the radioactive substance from the syringe through the hollow needle while the end of the cylindrical body portion adjacent the hollow needle engages the receiver.
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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) | 1992-09-25 | 1993-03-27 | 1993-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-09-25 | 1997-03-27 | 1997-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-09-25 | 2001-03-27 | 2001-09-26 | $7700.00 | Window Closed / Lapsed |