US5000804A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for making body fluid sample collection tube composite
Assignee: Individual
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Filing: 1988-12-21
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Granted: 1991-03-19
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Expires: 2008-12-21
Abstract
Abstract A composite body fluid sample container is provided which incorporates safety features for containing diseased samples of such fluids from touching and/or contaminating anyone handling the samples. The composite includes a glass sample container, either evacuated or not, depending upon use which has disposed thereon a "shrunk down" sleeve of a thermoplastic film. In the event that the glass is cracked or broken, the sleeve holds the sample from spilling or leaking onto the hands of a person handling the container, or otherwise spreading a diseased sample by spilling, leakage, or cutting by broken glass.
Inventors
- 👤 Edward L. Nugent
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:24
CPC Classifications
B; B01; B01L; B01L3/00; B01L3/50; B01L3/508; B01L3/5082; A; A61; A61B; A61B5/00; A61B5/15; A61B5/150007; A61B5/150015; A61B5/15003; A61B5/150351; A61B5/153; A61B5/154; G; G01; G01N; G01N1/00; G01N2001/002; G01N2001/007
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
153 words
A process for making a composite sample container assembly for receiving and containing disease bearing fluid samples without leakage, the steps which comprise (a) forming a glass container having an opening; (b) forming an elastomer stopper for said opening; (c) selecting a thermoplastic film; (d) applying, in a first applying step, a heat activated adhesive to the surface of said thermoplastic film which will face said glass container surface; (e) pre-stressing said thermoplastic film in one direction thereof in the presence of elevated temperatures; (f) evacuating said glass container for imparting a vacuum internally thereof while simultaneously seating said formed elastomer stopper in said opening of said glass container; (g) applying, in a second applying step, said pre-stressed film to at least the major portion of the outer surface of said glass container; and (h) shrinking down said film from step (g) into said glass container surface in the presence of elevated temperatures.
Claim 2
Dependent Claim
153 words
A process for making a composite sample container assembly for receiving and containing disease bearing fluid samples without leakage, the steps which comprise (a) forming a glass container having an opening; (b) forming an elastomer stopper for said opening; (c) selecting a thermoplastic film; (d) applying, in a first applying step, a heat activated adhesive to the surface of said thermoplastic film which will face said glass container surface; (e) pre-stressing said thermoplastic film in one direction thereof in the presence of elevated temperatures; (f) evacuating said glass container for imparting a vacuum internally thereof while simultaneously seating said formed elastomer stopper in said opening of said glass container; (g) applying, in a second applying step, said pre-stressed film to at least the major portion of the outer surface of said glass container; and (h) shrinking down said film from step (g) into said glass container surface in the presence of elevated temperatures.
Claim 3
Dependent Claim
31 words
The process of claim 1, further characterized by (a) said glass container from step (a) is tube-shaped; and (b) said tube-shaped glass container having an open end and a closed end.
Claim 4
Dependent Claim
29 words
The process of claim 1, further characterized by (a) said film selected in step (c) is a member selected from the group consisting of polyvinyl chloride, polyester and polystyrene.
Claim 5
Dependent Claim
35 words
The process of claim 1, further characterized by (a) said applying step (e) includes applying said film over at least a portion of said elastomer stopper so that said film covers the glass container/stopper interface.
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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) | 1994-03-18 | 1994-09-17 | 1995-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-03-18 | 1998-09-17 | 1999-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-03-18 | 2002-09-17 | 2003-03-19 | $7700.00 | Window Closed / Lapsed |