Patents Assigned to Pye of Cambridge Ltd.
  • Analogue divider with digital output for spectrophotometry
    Patent number: 3995265
    Abstract: The sample output from a spectrophotometer is accumulated for a predetermined number of clock pulses and then compared with an accumulation of the reference output of the spectrophotometer and predetermined antenuations thereof for measured numbers of clock pulses to produce digitalized transmittance or absorbance ratios.
    Type: Grant
    Filed: November 19, 1974
    Date of Patent: November 30, 1976
    Assignee: Pye of Cambridge Ltd.
    Inventors: Adrian Francis Flynn, Paul Goring Houghton
  • Radiation detecting system
    Patent number: 3993901
    Abstract: In a spectrophotometry system, apparatus for modulating radiation in fixed phase relationship with an oscillatory electric signal, comprising a radiation interrupting member connected to an armature torsionally mounted in a magnetic field generated from said oscillatory signal.
    Type: Grant
    Filed: January 22, 1975
    Date of Patent: November 23, 1976
    Assignee: Pye of Cambridge Ltd.
    Inventor: David Sydney Widmer
  • Apparatus and method for atomic spectroscopy
    Patent number: 3979162
    Abstract: A furnace for heating a sample of a substance to produce free atoms for atomic spectroscopy wherein an unequal temperature distribution is created in a sample holding element and a protective gas flows through the sample holding element in the direction of increasing temperature to reduce the tendency of free atoms to condense on surfaces of the sample holding element.
    Type: Grant
    Filed: July 9, 1973
    Date of Patent: September 7, 1976
    Assignee: Pye of Cambridge Ltd.
    Inventor: Richard Alexander George