Patents by Inventor John McLin

John McLin 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).

  • Multiport particle detection apparatus utilizing a plenum having a plurality of spatically separate channels in fluid combination
    Patent number: 5164604
    Abstract: Detection apparatus employs a plurality of conduits, a plurality of photosensors, and a laser in a multi-port forward-scattering geometry to detect particles for each of a plurality of spatial sections (S.sub.1, . . . S.sub.n) of an enclosure. The photosensors are provided in two sets arranged at two different scattering angles to discriminate smoke from other particulate matter in sample flows which flow along the conduits and intersect the laser beam. The sample flows are discharged into a plenum and removed from the plenum via a single manifold. The laser can be backed up by an auxiliary laser.
    Type: Grant
    Filed: May 1, 1991
    Date of Patent: November 17, 1992
    Assignee: Allied-Signal Inc.
    Inventors: Harvey V. Blair, John McLin, Joseph F. Halik, William J. Coates