Patents by Inventor Edward V. Dettmer

Edward V. Dettmer 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).

  • Method and apparatus for reclaiming polymer from scrap plastic film rolls
    Patent number: 4200967
    Abstract: Scrap plastic film rolls are axially pushed onto a mandrel wherein at least one axial cut is made through the roll film, the film roll including the paper core is pushed toward a separator which strips the film from the core, the core is moved axially on the mandrel, slit and removed from the mandrel thereby separating plastic film and the core material.
    Type: Grant
    Filed: November 2, 1978
    Date of Patent: May 6, 1980
    Assignee: The Dow Chemical Company
    Inventor: Edward V. Dettmer
  • Die face cutter
    Patent number: 4182605
    Abstract: An improved flat-faced die face cutter is provided which permits flushing of the face with water with minimal chilling of the die. A spindle is provided which minimizes thermal effects on knife die face-positioning.
    Type: Grant
    Filed: April 17, 1978
    Date of Patent: January 8, 1980
    Assignee: The Dow Chemical Company
    Inventor: Edward V. Dettmer
  • Apparatus for insulation of structures
    Patent number: 4098635
    Abstract: An apparatus is described which is particularly suitable for applying insulation in the form of plastic foam or the like to a surface of a container to be insulated. The apparatus deposits a strip of foam in a generally helical manner while following the contour of the container or structure.
    Type: Grant
    Filed: August 12, 1974
    Date of Patent: July 4, 1978
    Assignee: The Dow Chemical Company
    Inventors: Robert A. Hay, II, Edward V. Dettmer
  • Apparatus for mixing
    Patent number: 4027858
    Abstract: Liquids, particularly viscous and nonviscous liquids with at least limited mutual solubility, are admixed by introducing one of the liquids into a stream of the other in the form of thin tubes which usually form droplets and by maintaining the resultant two-component stream at a temperature such that the material of the thin tube diffuses throughout the stream to provide mixing of a desired degree.
    Type: Grant
    Filed: June 29, 1976
    Date of Patent: June 7, 1977
    Assignee: The Dow Chemical Company
    Inventor: Edward V. Dettmer
  • Cutting apparatus
    Patent number: 4021176
    Abstract: An improved cutter for hot plastic strands is provided which uses an annular die plate having a plurality of strand-extruding openings, the openings being generally coplanar. A rotating cutter is provided adjacent the die plate with cutting knives resiliently tensioned toward the face of the die, the cutter being adjustably mounted relative to the die in a manner to provide highly accurate adjustment and to minimize thermal movement of the die relative to the cutter.
    Type: Grant
    Filed: October 3, 1975
    Date of Patent: May 3, 1977
    Assignee: The Dow Chemical Company
    Inventors: Edward V. Dettmer, Earl T. Heckeroth