US5139746A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple test tube holder
Assignee: Draegerwerk AG and Co KGaA
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Filing: 1989-12-11
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Granted: 1992-08-18
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Expires: 2009-12-11
Abstract
Abstract The present invention pertains to a multiple holder for test tubes, which receives a plurality of individual test tubes for the simultaneous flow-through of a gas sample with the gas entering the tubes through at least one opened end, from a connection piece which has a flow outlet. The multiple holder of the invention receives commercially available test tubes with fused tips and includes an arrangement to simultaneously open all the test tubes introduced. To achieve this, the multiple holder 1 is designed such that at least one section 6, 6a can be tilted down, as a result of which the tips 8 of all the test tubes 2 introduced can be broken off simultaneously at least at one end.
Inventors
- 👤 Horst Rabenecker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:54
CPC Classifications
G; G01; G01N; G01N1/00; G01N1/02; G01N1/22; G01N1/24
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
106 words
A multiple test tube holder arrangement for arranging test tubes for flow-through gas sampling, comprising: a flat and rigid test tube holder body portion, for receiving a plurality of test tubes; test tube tip engaging means for receiving a test tube tip of each test tube positioned in said holder body portion; and flat flexible band means connected to said holder body portion and connected to said test tube tip engaging means for tilting said test tube tip engaging means relative to said holder body portion for breaking each of a plurality of test tube tips while maintaining the test tubes in said holder body portion.
Claim 2
Dependent Claim
106 words
A multiple test tube holder arrangement for arranging test tubes for flow-through gas sampling, comprising: a flat and rigid test tube holder body portion, for receiving a plurality of test tubes; test tube tip engaging means for receiving a test tube tip of each test tube positioned in said holder body portion; and flat flexible band means connected to said holder body portion and connected to said test tube tip engaging means for tilting said test tube tip engaging means relative to said holder body portion for breaking each of a plurality of test tube tips while maintaining the test tubes in said holder body portion.
Claim 3
Dependent Claim
76 words
A multiple test tube holder arrangement according to claim 1, further comprising additional tip engaging means connected to a second end of said flat and rigid holder body portion, said flat and rigid holder body portion having snap fastening means including first and second connectible body elements, allowing tips of each of the plurality of test tubes to be engaged by said tip engaging means and subsequent connection of said flat and rigid holder body portion.
Claim 4
Dependent Claim
46 words
A multiple test tube holder arrangement according to claim 1, further comprising: a multiple test tube connection piece for connecting open ends of the plurality of held test tubes upon tilting said tip engaging means to expose an open end of each of the test tubes.
Claim 5
Dependent Claim
91 words
A test tube holder for removing a tip from a test tube, the holder comprising: a plate; holding clamp means attached to said plate for securely holding a test tube to said plate, said holding clamp means only contacting a portion of the test tube leaving a portion exposed for displaying contents of the test tube; and tilting means connected to said plate for receiving the tip of the test tube and for tilting the tip relative to the held test tube to break off the tip from the test tube.
Claim 6
Dependent Claim
91 words
A test tube holder for removing a tip from a test tube, the holder comprising: a plate; holding clamp means attached to said plate for securely holding a test tube to said plate, said holding clamp means only contacting a portion of the test tube leaving a portion exposed for displaying contents of the test tube; and tilting means connected to said plate for receiving the tip of the test tube and for tilting the tip relative to the held test tube to break off the tip from the test tube.
Claim 7
Dependent Claim
14 words
A holder in accordance with claim 4, wherein: said plate is flat and rigid.
Claim 8
Dependent Claim
83 words
A holder in accordance with claim 4, wherein: said tilting means has a flexible band means attached on a first end to said plate, said tilting means also has a closing bar attached to a second end of said flexible band means, said closing bar defining a tip receiving portion for receiving the tip of the test tube, and said closing bar being tiltable with respect to said plate by said flexible band means for breaking off the tip of the test tube.
Claim 9
Dependent Claim
22 words
A multiple test tube holder according to claim 6, wherein said closing bar includes a striking edges for scoring said test tubes.
Claim 10
Dependent Claim
54 words
A holder in accordance with claim 6, wherein: said flexible band means is stretchable to an extent that said closing bar contacts the tip of the test tube in holding position, and said closing bar can be stretched away from the tip of the test tube for insertion or removal of the test tube.
Claim 11
Dependent Claim
72 words
A holder in accordance with claim 6, further comprising: snap fastener means between said holding clamp means and said closing bar for separating and connecting said holding clamp means to said closing bar, the test tube being insertable into the holding clamp means during separating by said snap fastener means, and said closing bar being brought into contact with the tip of the test tube during connecting by the snap fastener means.
Claim 12
Dependent Claim
14 words
A holder in accordance with claim 6, wherein: said flexible band means is flat.
Claim 13
Dependent Claim
49 words
A holder in accordance with claim 4, further comprising: an additional tilting means connected to another end of said plate for receiving another tip of the test tube and for tilting the tip relative to the held test tube, to break off the another tip of the test tube.
Claim 14
Dependent Claim
29 words
A holder in accordance with claim 4, wherein: said holding clamp means has two fingers protruding from said plate and the test tube is clamped between said two fingers.
Claim 15
Dependent Claim
40 words
A holder in accordance with claim 12, wherein: said holding clamp means has an additional two fingers protruding from said plate and the test the is clamped between said two fingers and is also clamped between said additional two fingers.
Claim 16
Dependent Claim
72 words
A holder in accordance with claim 13, further comprising: snap fastener means between said two fingers and said additional two fingers for separating and connecting said two fingers to said additional two fingers, the test tube being insertable into the holding clamp means during separating by said snap fastener means, and said closing bar being brought into contact with the tip of the test tube during connecting by the snap fastener means.
Claim 17
Dependent Claim
57 words
A holder in accordance with claim 4, wherein: said holding clamp means holding a plurality of test tubes; and said tilting means receiving a plurality of tips of test tubes for tilting the plurality of tips relative to the held plurality of test tubes to break off the plurality of tips from the plurality of test tubes.
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) | 1995-08-18 | 1996-02-17 | 1996-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-08-18 | 2000-02-17 | 2000-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-08-18 | 2004-02-17 | 2004-08-18 | $7700.00 | Window Closed / Lapsed |