To Porous Distributor Exposed To Atmosphere Patents (Class 239/43)
  • Patent number: 4161284
    Abstract: A deodorant or fragrance dispensing packet for use in vehicles and the like is characterized by being quickly rechargable by squeezing the two parallel sides of the packet together, which causes spikes molded on the interior of one side of the packet container to rupture a liquid fragrance containing pod, permitting the perfume to flow into a surrounding absorbent pad from which the fragrance slowly evaporates and disseminates into the atmosphere through holes in the outer casing which were punched by the consumer after purchase to permit the dissemination of the first charge of fragrance which was contained in the absorbent pad.
    Type: Grant
    Filed: February 9, 1978
    Date of Patent: July 17, 1979
    Inventor: Horace E. Rattan
  • Patent number: 4144309
    Abstract: A device for dispensing a microcide which consists of a first polymeric material housing a second polymeric material which second material depolymerizes when the device is in the environment of use to form an active microcide. The microcide controls the presence of micro-organisms in the environment over a prolonged period of time.
    Type: Grant
    Filed: June 9, 1977
    Date of Patent: March 13, 1979
    Assignee: Alza Corporation
    Inventors: Jimmy B. Langston, Harold Leeper, Patrick S. Wong