Patents by Inventor Geoffrey S. Greaves

Geoffrey S. Greaves has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Testing a cuvette for cleanliness
    Patent number: 4227886
    Abstract: In testing for cleanliness a cuvette having translucent wall portions, the cuvette is preferably partially filled with pure water and then a beam of optical radiation is directed at a said wall portion, the intensity of radiation which has passed through the cuvette by direct transmission or by scattering is detected, and the state of cleanliness of the cuvette is determined from a comparison between the detected optical intensity and a criterion indicative of cuvette cleanliness.The invention finds particular application to testing cuvettes for cleanliness which have been washed in a laundry of an automatic blood analysing machine.
    Type: Grant
    Filed: May 13, 1977
    Date of Patent: October 14, 1980
    Assignee: National Research Development Corporation
    Inventors: David G. Bullock, Roger A. Bunce, Ian R. Clark, Ian D. Duff, Geoffrey S. Greaves, Peter H. Lloyd, Ann M. Peters, Thomas P. Whitehead, Peter Wilding