Patents by Inventor Helmut Demny

Helmut Demny 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: 5060786
    Abstract: A belt conveyor for packaging apparatus includes an endless belt which supports a plurality of spaced article receiving cells, the belt being passed about a pair of direction-changing wheels. Variations in the loading of the endless belt are minimized by coupling the drive shaft, by which power is delivered to a first of the wheels, to a drive shaft for the other wheel via at least one rotationally fixed cardan connection.
    Type: Grant
    Filed: December 5, 1990
    Date of Patent: October 29, 1991
    Assignee: Maschinenfabrik Alfred Schmermund GmbH & Co.
    Inventor: Helmut Demny
  • Patent number: 4991597
    Abstract: A process and apparatus for wrapping cigarette packages in transparent film, in which the transparent film is expanded as a result of heating before being wound around the cigarette package and bonded to itself. A tear-open strip is mated with and subsequently bonded to the film during the heating thereof.
    Type: Grant
    Filed: June 2, 1987
    Date of Patent: February 12, 1991
    Assignee: Maschinenfabrik Alfred Schmermund GmbH & Co.
    Inventor: Helmut Demny
  • Patent number: 4003386
    Abstract: A device for attaching filter tips to cigarettes is disclosed. The device comprises a rotatable grooved drum provided with a plurality of peripheral recesses each adapted to hold an assembly consisting of a double length tip component and two axially aligned cigarettes disposed to abut against respective end surfaces of the tip component, a feeder to feed successive connecting sheets each provided with an adhesive coating on one surface to overlie the respective recesses in the grooved drum. The sheets each extend asymetrically of the center of the respective recess with the coated surface facing outwardly of the drum. Such assemblies are successively urged into respective recesses as the grooved drum rotates and the respective connecting sheets are thereby partially wrapped around the peripheries of the respective assemblies.
    Type: Grant
    Filed: April 14, 1975
    Date of Patent: January 18, 1977
    Assignee: Maschinenfabrik Alfred Schmermund
    Inventors: Hubert Bald, Helmut Demny