US4218141A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vapor analysis test tube
Assignee: Hellma GmbH and Co KG
•
Filing: 1978-12-15
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Granted: 1980-08-19
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Expires: 1998-12-15
Abstract
Abstract A cuvette whose outer side has a recess for a flat square resistance thermometer which is bonded to a thin partition between the recess and the internal space of the cuvette. The thermometer is connected with a device which indicates the temperature of a sample in the cuvette and/or which regulates the temperature of the sample if such temperature deviates from an optimum value. The contacts of the thermometer are soldered to the corresponding conductors of a cable. The joint between the contacts and the conductors as well as the thermometer and its contacts are confined in the recess by a mass of epoxy resin. The thickness of the partition is a fraction of one millimeter, and the thermometer is bonded to the outer side of the partition by a heat-conducting adhesive.
Inventors
- 👤 Peter Mayer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:19
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/01; G01N21/03; G01N21/0332
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
82 words
A transparent cuvette for use in examination of media at a given temperature, particularly in photometric or spectrophotometric examination of media, comprising wall means configured to define a cavity on an inner side thereof for receiving a sample of a respective medium to be examined; and at least one thermometer means at least partly embedded in a recess means on an outer side of said wall means, said thermometer means being provided in and separated from said cavity by said wall means.
Claim 2
Dependent Claim
82 words
A transparent cuvette for use in examination of media at a given temperature, particularly in photometric or spectrophotometric examination of media, comprising wall means configured to define a cavity on an inner side thereof for receiving a sample of a respective medium to be examined; and at least one thermometer means at least partly embedded in a recess means on an outer side of said wall means, said thermometer means being provided in and separated from said cavity by said wall means.
Claim 3
Dependent Claim
33 words
The cuvette of claim 1, wherein said wall means has said inner side, an outer side and said recess means in said outer side, said thermometer means being located in said recess means.
Claim 4
Dependent Claim
32 words
The cuvette of claim 2, wherein said wall means includes a relatively thin portion intermediate said inner side and said recess means and said thermometer means is immediately adjacent to said portion.
Claim 5
Dependent Claim
21 words
The cuvette of claim 3, wherein the thickness of said portion of said wall means is a fraction of one millimeter.
Claim 6
Dependent Claim
20 words
The cuvette of claim 3, further comprising means for securing said thermometer means to said portion of said wall means.
Claim 7
Dependent Claim
13 words
The cuvette of claim 5, wherein said securing means is a heat-conducting adhesive.
Claim 8
Dependent Claim
10 words
The cuvette of claim 6, wherein said adhesive contains silver.
Claim 9
Dependent Claim
17 words
The cuvette of claim 2, further comprising means for confining said thermometer means in said recess means.
Claim 10
Dependent Claim
13 words
The cuvette of claim 8, wherein said confining means fills said recess means.
Claim 11
Dependent Claim
13 words
The cuvette of claim 9, wherein said confining means is an epoxy resin.
Claim 12
Dependent Claim
13 words
The cuvette of claim 1, wherein said thermometer means is a resistance thermometer.
Claim 13
Dependent Claim
14 words
The cuvette of claim 11, wherein said thermometer means is a flat polygonal body.
Claim 14
Dependent Claim
27 words
The cuvette of claim 12, wherein said body is a square having a length and width of approximately 4 mm and a thickness of approximately 1 mm.
Claim 15
Dependent Claim
64 words
The cuvette of claim 1, said thermometer being located in said recess means and having a plurality of electric contacts, said recess means having a first section for said thermometer means and a second section communicating with said first section and receiving said contacts, and further comprising means for confining said thermometer means and said contacts in the respective sections of said recess means.
Claim 16
Dependent Claim
39 words
The cuvette of claim 14, further comprising cable means having conductor means and means for conductively connecting said conductor means with said contacts, said connecting means being located in said recess means and being surrounded by said confining means.
Claim 17
Dependent Claim
26 words
The cuvette of claim 15, wherein said connecting means is solder and said confining means is a mass of epoxy resin which fills said recess means.
Claim 18
Dependent Claim
22 words
The cuvette of claim 15, wherein said second section is located at a level above said first section of said recess means.
Claim 19
Dependent Claim
28 words
The cuvette of claim 15, further comprising a shroud for said connecting means, said shroud surrounding said wall means and at least a portion of said recess means.
Claim 20
Dependent Claim
14 words
The cuvette of claim 18, wherein said shroud is bonded to said wall means.
Claim 21
Dependent Claim
31 words
The cuvette of claim 18, wherein said shroud has a second recess in at least partial communication with said first mentioned recess means and said confining means fills said second recess.
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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) | 1983-08-19 | 1984-02-18 | 1984-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-08-19 | 1988-02-18 | 1988-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-08-19 | 1992-02-18 | 1992-08-19 | $7700.00 | Window Closed / Lapsed |