Patents by Inventor Walter C. Saeman

Walter C. Saeman 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).

  • Spray graining technique for preparing granular hydrated alkali metal dihaloisocyanurate
    Patent number: 4005087
    Abstract: Granular alkali metal dihaloisocyanurate particles (such as sodium dichloroisocyanurate) comprised of a core of alkali metal dihaloisocyanurate encapsulated in a plurality of layers of hydrated alkali metal dihaloisocyanurate are produced by spraying a pumpable and sprayable aqueous slurry of hydrated alkali metal dihaloisocyanurate particles onto suspended particles of solid alkali metal dihaloisocyanurate in anhydrous or hydrated form above a moving bed of said particles. The solid particles coated with the slurry are heated to simultaneously evaporate and remove water from the slurry whereby said particles are coated with a layer of solid hydrated alkali metal dihaloisocyanurate.A portion of the moving bed of coated particles is removed from the spraying zone and further processed, if desired. In one embodiment, the hydrated particles are sized, and undersize and crushed oversize are recycled to the moving bed.
    Type: Grant
    Filed: September 29, 1975
    Date of Patent: January 25, 1977
    Assignee: Olin Corporation
    Inventor: Walter C. Saeman
  • Process for preparing granular calcium hypochlorite in a fluidized bed
    Patent number: 3969546
    Abstract: Granular calcium hypochlorite particles having a core of calcium hypochlorite encapsulated in a plurality of layers of calcium hypochlorite are produced from an aqueous slurry of calcium hypochlorite by spraying a pumpable and sprayable slurry of calcium hypochlorite particles onto suspended particles of solid calcium hypochlorite above a moving bed of said particles in a fluidized bed. The solid particles coated with the slurry are heated to simultaneously evaporate and remove water from the slurry whereby said particles are coated with a layer of solid calcium hypochlorite.A portion of the moving bed of coated particles is removed from the spraying zone and further processed, if desired. In one embodiment, the coated particles with or without sizing are further dried to produce granular particles having the desired moisture content.
    Type: Grant
    Filed: December 20, 1974
    Date of Patent: July 13, 1976
    Assignee: Olin Corporation
    Inventor: Walter C. Saeman
  • Absorber-crystallizer tower including spray means and scale trap
    Patent number: 3960502
    Abstract: An absorber-crystallizer tower is provided with improved means for spraying aqueous solution into a reactive gas to saturate the solution from which the product crystalizes and with improved means for removing scale from the crystal containing suspension which is formed. The apparatus has no scale sensitive internal surfaces and operates continuously without substantial scale build-up.
    Type: Grant
    Filed: November 11, 1974
    Date of Patent: June 1, 1976
    Assignee: Olin Corporation
    Inventor: Walter C. Saeman