Patent US5047348A successfully refreshed from Google Patents.
US5047348A
Expired / Lapsed
US
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Apparatus for housing radioactive items during incubation
Assignee: Massachusetts Institute of Technology
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Filing: 1989-09-27
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Granted: 1991-09-10
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Expires: 2009-09-27
Abstract
Abstract An apparatus for housing radiation-emitting items to be incubated, such as radio-labeled cell cultures, in order to prevent contamination of the interior of an incubator and the surrounding environment. The apparatus is nonporous and preferably relatively thermally resistant. Additionally, the apparatus features a selectively sealable lid and has at least one opening within which is disposed a filter for entrapping any radioactive compounds contained in gases exiting the apparatus during incubation. The apparatus is used in conjunction with known incubation procedures of radiolabelled cell cultures or other items.
Inventors
- 👤 Margaret C. Stinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 11:53
CPC Classifications
G; G21; G21F; G21F7/00; G21F7/015; Y; Y10; Y10S; Y10S435/00; Y10S435/809
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
119 words
An apparatus for housing radio-labelled items during incubation thereof, comprising: a substantially square or rectangular container for housing cultures of radio-labelled cells disposed in cell culture containers, said container having a lid which selectively seals an opening in the container, said openings having an area substantially equal to that of a side of the container opposite the opening; at least one filter-retaining vent opening disposed in the container means; a filter cartridge means for securely fitting within the vent opening of the container such that gas exiting the container passes through the filter cartridge means and for entrapping radioactive compounds contained in gases exiting said container; and an activated charcoal, radiation-absorbing filter material housed within the filter cartridge means.
Claim 2
Independent Claim
119 words
An apparatus for housing radio-labelled items during incubation thereof, comprising: a substantially square or rectangular container for housing cultures of radio-labelled cells disposed in cell culture containers, said container having a lid which selectively seals an opening in the container, said openings having an area substantially equal to that of a side of the container opposite the opening; at least one filter-retaining vent opening disposed in the container means; a filter cartridge means for securely fitting within the vent opening of the container such that gas exiting the container passes through the filter cartridge means and for entrapping radioactive compounds contained in gases exiting said container; and an activated charcoal, radiation-absorbing filter material housed within the filter cartridge means.
Claim 3
Dependent Claim
29 words
The apparatus of claim 1, wherein the container means comprises a rigid structure made of a nonporous, material sufficient to contain low energy beta emitters and removable radioactive contamination.
Claim 4
Dependent Claim
15 words
The apparatus of claim 2, wherein the container means is constructed of an acrylic material.
Claim 5
Dependent Claim
16 words
The apparatus of claim 2, wherein the container means is constructed of a styrene-acrylonitrile copolymer material.
Claim 6
Dependent Claim
23 words
The apparatus of claim 1 wherein the filter cartridge means is disposed within a vent opening in the lid of the container means.
Claim 7
Independent Claim
143 words
An apparatus for housing radio-labelled items during incubation thereof, comprising: a substantially square or rectangular container for housing cultures of radio-labelled cells disposed in cell culture containers, said container having a lid which selectively seals an opening in the container, said opening having an area substantially equal to that of a side of the container opposite the opening; at least one filter-retaining vent opening disposed in the container; and a filter cartridge means for securely fitting within the vent opening of the container such that gas exiting the container passes through the filter cartridge means for entrapping radioactive compounds contained in gases exiting the container, the filter cartridge means comprising a structure corresponding in shape to the vent opening and having solid side walls and perforated top and bottom walls; and an activated charcoal radiation-absorbing filter material housed within said filter cartridge means.
Claim 8
Independent Claim
143 words
An apparatus for housing radio-labelled items during incubation thereof, comprising: a substantially square or rectangular container for housing cultures of radio-labelled cells disposed in cell culture containers, said container having a lid which selectively seals an opening in the container, said opening having an area substantially equal to that of a side of the container opposite the opening; at least one filter-retaining vent opening disposed in the container; and a filter cartridge means for securely fitting within the vent opening of the container such that gas exiting the container passes through the filter cartridge means for entrapping radioactive compounds contained in gases exiting the container, the filter cartridge means comprising a structure corresponding in shape to the vent opening and having solid side walls and perforated top and bottom walls; and an activated charcoal radiation-absorbing filter material housed within said filter cartridge means.
References Cited (Backward Citations)
US3084492A
Cited
US3925046A
Cited
US3964887A
Cited
US3969496A
Cited
US4057470A
Cited
US3997404A
Cited
US4127397A
Cited
US4135896A
Cited
US4467308A
Cited
US4592192A
Cited
US4670398A
Cited
US4935371A
Cited
US4773922A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-09-09 | 1995-03-11 | 1995-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-09-09 | 1999-03-11 | 1999-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-09-09 | 2003-03-11 | 2003-09-10 | $7700.00 | Window Closed / Lapsed |