Patents by Inventor Joseph M. Minkevitch

Joseph M. Minkevitch 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).

  • Patent number: 4723691
    Abstract: Hand-held and hand-operable powder dispenser having a container including a handle/nozzle section terminating at its discharge end in an unobstructed powder dipensing opening, a hand gripping section, and a central, flexible bellows section coupled between the handle/nozzle section and the hand-gripping section. The bellows section is adapted to be collapsed and expanded axially to serve as a pump. The inside diameters of the handle/nozzle section decrease substantially linearly and continually as a function of the length of the handle/nozzle section in a direction toward the powder dispensing opening. The ratio of the length of the handle/nozzle section to the greatest value of its inside diameter is substantially greater than 1.4.
    Type: Grant
    Filed: August 15, 1986
    Date of Patent: February 9, 1988
    Inventors: Joseph M. Minkevitch, Edward J. Martin
  • Patent number: 4044836
    Abstract: A dispenser for dry powders, and in particular for fire extinguishing powders, formed as a container having a handle/nozzle section to be gripped by one hand, a hand gripping section to be gripped by the other hand, and a central bellows section for alternate axial compression and expansion to pump the powder from the container and thereby to discharge it in repeated cloud-like bursts. By regulating the quantity of powder in the dispenser and the powder dispensing opening it is possible to repeatedly discharge fire extinguishing effective amounts of a fire extinguishing powder. In one preferred embodiment the handle/nozzle section is configured as an elongated conical member.
    Type: Grant
    Filed: February 2, 1976
    Date of Patent: August 30, 1977
    Inventors: Edward J. Martin, Joseph M. Minkevitch
  • Patent number: D270097
    Type: Grant
    Filed: November 6, 1980
    Date of Patent: August 9, 1983
    Inventor: Joseph M. Minkevitch
  • Patent number: D296939
    Type: Grant
    Filed: January 10, 1986
    Date of Patent: July 26, 1988
    Inventors: Joseph M. Minkevitch, Edward J. Martin