公开(公告)号：GB1057147A

公开(公告)日：1967-02-01

申请号：GB4653663

申请日：1963-11-25

Applicant: COULTER ELECTRONICS

Inventor： COULTER WALLACE HENRY ,  ADLER STANFORD L

IPC: A61B5/145 ,  G01N11/14 ,  G01N33/49

Abstract: 1,057,147. Photo-electric coagulometers. COULTER ELECTRONICS Inc. Nov. 25, 1963, No. 46536/63. Heading G1A. [Also in Division F1] The length of time taken for a sample of blood plasma to coagulate after the addition of a measured amount of thromboplastin is determined by rotating a disc magnetically partly immersed in the sample and detecting when the rotation is stopped by the increasing viscosity of the coagulating blood. The disc has either graded opacity or an opaque region and is arranged to modulate the light falling on a photo-cell from a source. The photo-cell output is applied to a recorder, the disappearance of the A. C. component indicating the stopping of the disc. A plurality of sample bowls each with its own disc is provided in a circular plate which is stepped round to position each bowl at a testing station in turn. Hot air is blown on to the underside of the bowls to bring them to body temperature and the thromboplastin is likewise heated to body temperature before addition to the sample at the testing station.

公开(公告)号：IT8448957D0

公开(公告)日：1984-10-05

申请号：IT4895784

申请日：1984-10-05

Applicant: COULTER ELECTRONICS

Inventor： COULTER WALLACE HENRY ,  ROTHERMEL WILLIAM FLETCHER

IPC: G01N33/48 ,  G01N1/00 ,  G01N1/10 ,  G01N33/483 ,  G01N35/00 ,  G01N35/02 ,  G01N35/04 ,  G01N35/10 ,  B25J

Abstract: A plurality of sealed blood sample tubes are housed in a rack and a plurality of these racks are vertically stacked, with the sample tubes lying horizontally. The racks are successively deposited onto a horizontal conveyor belt which is housed in and moves longitudinally on a table that rocks around its longitudinal axis to mix the samples in a semi-inverting mode as a rack is stepped from the stack to a sample aspiration station and/or thereat. The aspiration station preferably includes a sample segmenting and diluting valve and a sample identification reader. Aspiration is accomplished by pushing a sample tube partially out from the carrier rack and onto a seal piercing tip of the aspiration probe. The tube then is returned to the rack. The other tubes in that rack similarly are aspirated after the rack is stepped to align each tube with the aspiration probe, with table rocking and sampling mixing accompanying each advancing step of the rack. After a rack has advanced through the aspiration station, it is stacked out of the way.

公开(公告)号：DE2549224A1

公开(公告)日：1976-05-13

申请号：DE2549224

申请日：1975-11-03

Applicant: COULTER ELECTRONICS

Inventor： COULTER WALLACE HENRY

IPC: G01N15/12 ,  G01N15/00

公开(公告)号：DE2505776A1

公开(公告)日：1975-08-14

申请号：DE2505776

申请日：1975-02-12

Applicant: COULTER ELECTRONICS

Inventor： HOGG WALTER ROBERT ,  COULTER WALLACE HENRY

IPC: H03K5/14 ,  G01R29/02 ,  G01N15/00

Abstract: An apparatus which includes circuitry for automatically sampling each pulse in a series of pulses a predetermined average number of times, sequentially storing the samples for a period of time, and reproducing the pulses from the samples, delayed in time.

公开(公告)号：DE2421265A1

公开(公告)日：1974-11-28

申请号：DE2421265

申请日：1974-05-02

Applicant: COULTER ELECTRONICS

Inventor： COULTER WALLACE HENRY ,  DOTY EDWARD NEAL

IPC: G01N15/12 ,  H03K5/01 ,  G01N15/02

Abstract: The amplitude of each of the pulses derived from a Coulter type of electronic particle analyzer is modified to compensate for amplitude error that results when the particle traverses non-uniform field portions of the scanning aperture path of the particle analyzer. By measuring the pulse amplitude at its center point and at two "shoulder" points located on opposite sides of the center point, a summing and comparison involving the pulse amplitudes at these three points is developed which effectively generates a modified pulse amplitude at the time of the center amplitude. The thus modified center amplitude is a more accurate measure of the volume of each particle and there results an improved linearizing of the particle volume pulse amplitude relationship which enhances the resolution of particle sizing data.

公开(公告)号：DE2252898A1

公开(公告)日：1973-05-10

申请号：DE2252898

申请日：1972-10-27

Applicant: COULTER ELECTRONICS

Inventor： COULTER WALLACE HENRY

IPC: G01D1/14 ,  G01B21/12 ,  G01N15/12 ,  G01R13/22 ,  G06G7/75 ,  G06M3/00 ,  G06M7/00 ,  G06F15/46

公开(公告)号：GB1249470A

公开(公告)日：1971-10-13

申请号：GB5164468

申请日：1968-10-31

Applicant: COULTER ELECTRONICS

Inventor： COULTER WALLACE HENRY ,  HOGG WALTER ROBERT

IPC: G01D1/14 ,  G01N15/12 ,  G06M11/00

Abstract: 1,249,470. Measuring particle size. COULTER ELECTRONICS Ltd. 31 Oct., 1968 [1 Nov., 1967], No. 51644/68. Heading G4H. [Also in Division G1] In apparatus for ascertaining that particle size of a particulate system above and below which predetermined fractions of the total mass of the system lie (e.g. the mass median, for equal fractions), a particle scanning transducer 330 working on the Coulter principle generates discrete pulses each of amplitude proportional to the volume of the particle giving rise thereto. The pulses are converted into binary cooled particle size signals which are added or subtracted to a total in a register 304 according as the output from a comparator 334 shows that the particle size signal is greater than or less than a feedback threshold signal T. A multiplier 302 allows different mass percentiles to be selected. At equilibrium, the output of the register 304 represents the required particle volume. A computing circuit 311 calculates the equivalent spherical diameter which is converted to decimal code at 310 and fed to a tape or card printer 370.

公开(公告)号：EP0159346A4

公开(公告)日：1986-03-04

申请号：EP84903835

申请日：1984-10-02

Applicant: COULTER ELECTRONICS

Inventor： ROTHERMEL WILLIAM FLETCHER ,  WALKER JAMES WILLIAM ,  MATTHEWS JOHN PAUL ,  COULTER WALLACE HENRY

IPC: G01N33/48 ,  A47B73/00 ,  B01L9/06

CPC classification number: B01L9/06