Patents by Inventor Hermann Felchlin

Hermann Felchlin 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 of securing sheets or poster to a base
    Patent number: 4225369
    Abstract: The present invention refers to a method of securing a sheet or a poster to a base, wherein the sheet or poster is brought into contact with at least one plastics material sheet and caused to adhere to said base by dampening said base or by wiping said base on the poster side with a means suitable for producing an electrostatic charge.In one particular application two plastics material sheets joined together along one edge and folded along said edge so as to be superposed one on the other are utilized, said sheet or poster being placed between or on said superposed sheets, said superposed sheets being caused to adhere to one another by being wiped with means suitable for producing an electrostatic charge.
    Type: Grant
    Filed: December 8, 1977
    Date of Patent: September 30, 1980
    Inventor: Hermann Felchlin