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US4387991A Expired / Lapsed US ⏱️ 0.0 years remaining

Automatic monochromatic light absorbance measurement analyzer

Assignee: Gilford Instrument Laboratories Inc
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Filing: 1980-10-14
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Granted: 1983-06-14
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Expires: 2000-10-14
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Abstract

Abstract A method of and apparatus for automatically taking monochromatic light absorbance measurements on a plurality of fluid samples such as serum. The fluid samples to be processed are contained in a vessel having a plurality of cuvettes into each of which is disposed a fluid sample to be analyzed and which vessel is on a processing path and moved by a unique drive belt mechanism capable of providing a plurality of movements to the vessel in different directions and selectively to a first position or station whereat the cuvettes in said vessel are washed and evacuated of any unbound materials and then to a second station whereat a reagent is sequentially and serially added to each of the cuvettes, after which the fluid sample in each cuvette is exposed to a monochromatic light absorbance measuring device straddling the track at said second position and a spectroanalysis is made thereof. The drive belt is actuated by a synchronous motor programmed to selectively position the cuvettes in predetermined, timed sequence--first at the wash and evacuate station and then at the reagent additive and analysis second station. The apparatus in coaction with the motor may be automatic and/or manually operable whereby a very large number of fluid samples may be very quickly analyzed for mass testing of large populations for highly infectious diseases.

Inventors

  • 👤 Saul R. Gilford
  • 👤 Robert J. Emary
  • 👤 Glen A. Carey

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-08 19:36
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/17; G01N21/25; G01N21/251; G01N21/253; G01N35/00; G01N35/02; G01N35/026; G01N35/04; G01N2035/0401; G01N2035/0437

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 143 words
A cuvette for carrying a fluid sample for use in apparatus for analyzing said sample and wherein said apparatus has conveying means movable along a testing path and connector means on said conveying means for moving said cuvette along said path; said cuvette comprising: a vessel of generally rectangular parallelepiped configuration; a plurality of separate chambers in said vessel, each adapted to hold a separate fluid sample under test, each chamber being open at its top to permit the placement of a fluid sample therein and each said chamber being provided with a window to permit monochromatic light to pass undistorted optically therethrough and into said chamber; and coupling means on one end of said vessel engageable with said connection means to enable said vessel to be movable to a plurality of positions along said path as defined by each of said chambers.
Claim 2
Dependent Claim 143 words
A cuvette for carrying a fluid sample for use in apparatus for analyzing said sample and wherein said apparatus has conveying means movable along a testing path and connector means on said conveying means for moving said cuvette along said path; said cuvette comprising: a vessel of generally rectangular parallelepiped configuration; a plurality of separate chambers in said vessel, each adapted to hold a separate fluid sample under test, each chamber being open at its top to permit the placement of a fluid sample therein and each said chamber being provided with a window to permit monochromatic light to pass undistorted optically therethrough and into said chamber; and coupling means on one end of said vessel engageable with said connection means to enable said vessel to be movable to a plurality of positions along said path as defined by each of said chambers.
Claim 3
Dependent Claim 112 words
A cuvette assembly for use in diagnostic testing of fluid samples comprising: a vessel of generally rectangular parallelopiped configuration; a plurality of separate chambers in said vessel, each adapted to hold a separate fluid sample under test with each chamber being open at its top to permit the placement of a fluid sample therein and each said chamber being provided with a window to permit monochromatic light to pass undistorted optically therethrough and into said chamber; a tray formed with at least one channel extending transversely thereacross and into which is disposed said vessel; and means on said vessel extending into said channel effective to releasably hold said vessel on the tray.
Claim 4
Dependent Claim 112 words
A cuvette assembly for use in diagnostic testing of fluid samples comprising: a vessel of generally rectangular parallelopiped configuration; a plurality of separate chambers in said vessel, each adapted to hold a separate fluid sample under test with each chamber being open at its top to permit the placement of a fluid sample therein and each said chamber being provided with a window to permit monochromatic light to pass undistorted optically therethrough and into said chamber; a tray formed with at least one channel extending transversely thereacross and into which is disposed said vessel; and means on said vessel extending into said channel effective to releasably hold said vessel on the tray.
Claim 5
Dependent Claim 37 words
A cuvette assembly as is defined in claim 2 wherein a plurality of vessels is provided, and said tray is formed with a plurality of channels into each of which is releasably disposed one of said vessels.

References Cited (Backward Citations)

US3703336A Cited
US3773426A Cited
DE2435317A1 Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1986-06-13 1986-12-13 1987-06-14 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1990-06-13 1990-12-13 1991-06-14 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1994-06-13 1994-12-13 1995-06-14 $7700.00 Window Closed / Lapsed

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