Apparatus for counting and classifying particles
Patent 4110043 Issued on August 29, 1978. Estimated Expiration Date: 
September 24, 1996. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
September 24, 1996. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3661460 3662176 3790760 3871770 Combined particle sorter and segregation indicator Patent #: 3984307 InventorAssigneeApplicationNo. 05/726275 filed on 09/24/1976US Classes:377/11, Including particle size determination variations250/222.2, Particle detection356/337BY PARTICLE LIGHT SCATTERINGExaminersPrimary: Engle, Samuel W.Assistant: Walsh, Donald P. Attorney, Agent or FirmInternational ClassesG06M 7/00 (20060101)G01N 15/14 (20060101) Foreign Application Priority Data1975-09-27 DEAbstractApparatus for counting and classifying particles and including a laser for producing a laser beam, a flow nozzle for hydrodynamically focussing a stream of such particles and directing the focussed stream to intersect the laser beam, a focussing system causing the laser beam to have a diameter which, at the point of intersection with the particle stream, is no greater than the width of the particles, and a detector disposed to receive the laser radiation transmitted by the particles as they pass through the laser beam. | |
