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    COLORIMETRIC LIQUID TEST APPARATUS
    2.
    发明专利
    COLORIMETRIC LIQUID TEST APPARATUS 未知

    公开(公告)号：GB1276105A

    公开(公告)日：1972-06-01

    申请号：GB4899169

    申请日：1969-10-06

    Applicant: COULTER ELECTRONICS

    Inventor： DORMAN ERVIN L JR ,  KLEIN ROBERT I ,  KREISELMAN ROBERT L ,  COULTER WALLACE H

    IPC: G01J3/51 ,  G01G3/02 ,  G01G3/08 ,  G01G23/14 ,  G01N21/05 ,  G01N21/85

    Abstract: 1276105 Automatic analysis COULTER ELECTRONICS Inc 6 Oct 1969 [10 Oct 1968] 48991/69 Heading B1X [Also in Divisions G1 and G2] Apparatus for dispensing diluent from reservoir 20 into cuvette 50 for measurement comprises spring-loaded piston 32 moving in cylinder 28, one end of the cylinder being connectable to atmosphere through normally closed valve V1B and the other end being connected to liners 22, 26 as shown. When the sample in the cuvette has been measured, valve V3 is opened under control of programming device 72 and the sample is tucked away by pump 46. Valve V3 is closed, valve VIA is closed and valve V1B opened to produce atmospheric pressure in line 36. Piston 32 then moves to force diluent already in line 26 into the cuvette.

    Colorimetric fluid test apparatus having plural fluid sequential control
    3.
    发明授权
    Colorimetric fluid test apparatus having plural fluid sequential control 失效
    具有二次流体顺序控制的彩色液体测试装置

    公开(公告)号：US3622795A

    公开(公告)日：1971-11-23

    申请号：US3622795D

    申请日：1968-10-10

    Applicant: COULTER ELECTRONICS

    Inventor： DORMAN ERVIN L JR ,  KLEIN ROBERT I ,  KREISELMAN ROBERT L ,  COULTER WALLACE H

    IPC: G01J3/51 ,  G01G3/02 ,  G01G3/08 ,  G01G23/14 ,  G01N21/05 ,  G01N21/85 ,  G01N21/26 ,  E03B ,  G01N33/16

    CPC classification number: G01G23/14 ,  G01G3/02 ,  G01G3/08 ,  G01N21/05 ,  G01N21/85 ,  Y10T137/86405

    Abstract: Apparatus to be used in making hemoglobin determinations of samples of blood and other colorimetric fluid tests, which includes colorimetric computing circuitry and a flow-through cuvette in the same housing, the flow-through cuvette being normally covered by a lid which is raised by the operator when pouring the test sample into the cuvette. The construction is such that the technician need use only one hand for raising the lid and pouring the sample, leaving the other hand free for making notes or other purpose. The lid movement initiates programming means and the operating cycle, which includes: draining a blanking fluid with which the cuvette is filled between the cycles of use of the apparatus, accepting the sample poured into the cuvette, making the colorimetric measurement thereof, emptying the sample from the cuvette, rinsing the cuvette, and refilling the cuvette with the blanking fluid for the next measuring cycle. All fluid movement is achieved through the use of a system operating in conjunction with suitable valves, solenoids and at least one spring-return operated, piston-type liquid dispenser. A novel cuvette construction provides concentric fluid-receiving mouths leading to inner and outer receptacles, the inner being the receptacle for the sample fluid, the outer being an overflow basin. The receptacles lead to respective independent drains, the inner being provided with a light transmitting section at which the fluid is traversed by a beam of radiant energy.

    COLORIMETRIC FLUID TEST APPARATUS
    5.
    发明专利
    COLORIMETRIC FLUID TEST APPARATUS 未知

    公开(公告)号：CA939527A

    公开(公告)日：1974-01-08

    申请号：CA64283

    申请日：1969-10-06

    Applicant: COULTER ELECTRONICS

    Inventor： DORMAN ERVIN L JR ,  KLEIN ROBERT I ,  KREISELMAN ROBERT L ,  COULTER WALLACE H

    IPC: G01J3/51 ,  G01G3/02 ,  G01G3/08 ,  G01G23/14 ,  G01N21/05 ,  G01N21/85 ,  G01J3/46

    Abstract: 1276105 Automatic analysis COULTER ELECTRONICS Inc 6 Oct 1969 [10 Oct 1968] 48991/69 Heading B1X [Also in Divisions G1 and G2] Apparatus for dispensing diluent from reservoir 20 into cuvette 50 for measurement comprises spring-loaded piston 32 moving in cylinder 28, one end of the cylinder being connectable to atmosphere through normally closed valve V1B and the other end being connected to liners 22, 26 as shown. When the sample in the cuvette has been measured, valve V3 is opened under control of programming device 72 and the sample is tucked away by pump 46. Valve V3 is closed, valve VIA is closed and valve V1B opened to produce atmospheric pressure in line 36. Piston 32 then moves to force diluent already in line 26 into the cuvette.

    Electronic particle detector of the coulter type having conductivity change independence circuitry
    6.
    发明授权
    Electronic particle detector of the coulter type having conductivity change independence circuitry 失效
    具有电导率变化独立电路的电流型电子粒子检测器

    公开(公告)号：US3706030A

    公开(公告)日：1972-12-12

    申请号：US3706030D

    申请日：1970-12-28

    Applicant: COULTER ELECTRONICS

    Inventor： KLEIN ROBERT I ,  HOGG WALTER R

    IPC: G01N15/12 ,  G01N27/00

    CPC classification number: G01N15/1227

    Abstract: APPARATUS AND CIRCUITRY FOR ANALYZING PARTICLES SUSPENDED IN A FLUID MEDIUM, INCLUDING A FIRST INSULATED VESSEL HAVING A SMALL APERTURE OPENING INTO A SECOND INSULATED VESSEL, THE FLUID BEING IN BOTH VESSELS AND CAUSED TO PASS THROUGH THE APERTURE. AN EXCITATION POWER SUPPLY SOURCE OF A.C. OR D.C. TYPE PRODUCES AN ELECTRIC CURRENT BETWEEN THE TWO VESSELS, THE ELECTRICAL IMPEDANCE OF THE SUSPENSION BEING DIFFERENT FROM THAT OF THE PARTICLES, SO THAT A PARTICLE PASSING THROUGH THE APERTURE CHANGES THE IMPEDANCE OF THE APERTURE CONTENTS, THEREBY MODULATING THE CURRENT IN THE APERTURE CONTENTS, AND CAUSING A SIGNAL WHICH IS APPLIED TO THE INPUT OF A DETECTOR CIRCUIT COMPRISING AN AMPLIFIER. THE IMPEDANCE OF THE EXCITATION POWER SUPPLY SOURCE, THE IMPEDANCE OF THE EXCITATION AND THE IMPEDANCE OF THE APERTURE CONTENTS ARE DIMENSIONED AND ARRANGED IN SUCH A MANNER AS TO MAKE THE MAGNITUDES OF THE SIGNALS INDEPENDENT OF SLOW CHANGES IN ELECTRICAL CHARACTERISTICS OF THE SUSPENSION.

    Malfunction detection circuit and method
    7.
    发明授权
    Malfunction detection circuit and method 失效
    故障检测电路及方法

    公开(公告)号：US3678382A

    公开(公告)日：1972-07-18

    申请号：US3678382D

    申请日：1970-04-09

    Applicant: COULTER ELECTRONICS

    Inventor： KLEIN ROBERT I

    IPC: G01N15/12 ,  G06F17/40 ,  H03K5/24 ,  G01R7/00

    CPC classification number: H03K5/24 ,  G01N15/1227

    Abstract: In order to detect a malfunction in one or both of two parallel channels carrying the same data, in a dynamic manner, the absolute differential value of the outputs of these two channels is determined and such absolute differential value is compared with a threshold value which is a pre-selected percent of the average value of the output from the two channels. If the absolute differential value is less than the threshold value, the average output is coupled to an output line; however, whenever the absolute differential value exceeds the threshold value, all data is rejected and there is no output.

    Abstract translation: 为了以动态的方式检测携带相同数据的两个并行信道中的一个或两个的故障，确定这两个信道的输出的绝对差分值，并将这个绝对差分值与阈值进行比较 是两个渠道产出平均值的预选百分比。 如果绝对差分值小于阈值，则平均输出耦合到输出线; 然而，每当绝对差分值超过阈值时，所有数据都被拒绝，并且没有输出。

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