US4879242A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of syringing reaction bead in examination of blood or the like and apparatus thereof
Assignee: Individual
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Filing: 1987-01-16
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Granted: 1989-11-07
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Expires: 2007-01-16
Abstract
Abstract A method of syringing reaction beads in examination of blood or the like comprises the steps of pouring a syringing liquid from a supply nozzle into a flask containing a reaction bead, withdrawing the syringing liquid with a suction nozzle to end the syringing of the beads and subsequently withdrawing the remaining syringing liquid in the flask with the suction nozzle on one side of the interior of the flask by blowing air from an air jet nozzle into the other side of the flask interior. An apparatus for syringing the reaction beads comprises a suction nozzle, a supply nozzle and an air jet nozzle or a supply/air jet nozzle provided such that they depend from a supply head and face the flask provided on a table below the supply head, free end portions of the suction nozzle and air jet nozzle being disposed on one side of the interior of the flask and on the other side of the interior of the flask, respectively.
Inventors
- 👤 Yasunobu Tsukioka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:51
CPC Classifications
B; B01; B01L; B01L13/00; B01L13/02; B01J; B01J2219/00; B01J2219/00274; B01J2219/00277; B01J2219/00457; B01J2219/00459; B01J2219/00468; B01L3/00; B01L3/50; B01L3/508; B01L3/5082; B01L3/5085; Y; Y10; Y10T; Y10T436/00; Y10T436/11; Y10T436/119163; Y10T436/25; Y10T436/2575
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
209 words
An apparatus for exposing reaction beads to a fluid, comprising: bead containing means for holding a reaction bead, comprising a flask; support means for supporting said flask; a liquid supply nozzle for supplying liquid to a reaction bead in said flask supported by said holding means, said liquid supply nozzle having one free end portion and one terminal end portion; a suction nozzle, distinct from said liquid supply nozzle, for suctioning liquid out from said flask, said suction nozzle having one terminal end portion and one free end portion; an air jet nozzle for blowing air into said flask simultaneously with the suctioning of liquid out from said flask by said suction nozzle, said air jet nozzle having one free end portion and one terminal end portion; means for simultaneously positioning said free end portions of said suction nozzle and said air jet nozzle within said flask so that said free end of said air jet nozzle is positioned on one side of said flask and said free end of said suction nozzle is positioned on an opposite side of said flask; and means for blowing air into said flask through said air jet nozzle simultaneously with said suctioning of liquid out from said flask by said suction nozzle.
Claim 2
Independent Claim
209 words
An apparatus for exposing reaction beads to a fluid, comprising: bead containing means for holding a reaction bead, comprising a flask; support means for supporting said flask; a liquid supply nozzle for supplying liquid to a reaction bead in said flask supported by said holding means, said liquid supply nozzle having one free end portion and one terminal end portion; a suction nozzle, distinct from said liquid supply nozzle, for suctioning liquid out from said flask, said suction nozzle having one terminal end portion and one free end portion; an air jet nozzle for blowing air into said flask simultaneously with the suctioning of liquid out from said flask by said suction nozzle, said air jet nozzle having one free end portion and one terminal end portion; means for simultaneously positioning said free end portions of said suction nozzle and said air jet nozzle within said flask so that said free end of said air jet nozzle is positioned on one side of said flask and said free end of said suction nozzle is positioned on an opposite side of said flask; and means for blowing air into said flask through said air jet nozzle simultaneously with said suctioning of liquid out from said flask by said suction nozzle.
Claim 3
Dependent Claim
39 words
The apparatus of claim 1, wherein said free end portion of said suction nozzle, said free end portion of said liquid supply nozzle, and said free end portion of said air jet nozzle are simultaneously insertable within said flask.
Claim 4
Dependent Claim
49 words
The apparatus of claim 1, wherein each of the terminal and portions of all of said nozzles depend from one supply head positioned above an open end of said flask and said supply head, with said nozzles fixed thereto, is movable relative to said open end of said flask.
Claim 5
Dependent Claim
38 words
The apparatus of claim 3, wherein a partition extends between and below a bottommost tip of said free end portion of said air jet nozzle and a bottommost tip of said free end portion of said suction nozzle.
Claim 6
Dependent Claim
16 words
The apparatus of claim 4, wherein a bottom end of said partition is of arcuate cross-section.
Claim 7
Dependent Claim
33 words
The apparatus of claim 3, further comprising a cover surrounding the free end portions of said nozzles for closing the open end of said flask when said air jet is blowing air therein.
Claim 8
Dependent Claim
21 words
The apparatus of claim 6, wherein said terminal end portion of said air jet nozzle is open to ambient atmospheric pressure.
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) | 1992-11-06 | 1993-05-08 | 1993-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-11-06 | 1997-05-08 | 1997-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-11-06 | 2001-05-08 | 2001-11-07 | $7700.00 | Window Closed / Lapsed |