Patents by Inventor Hans Åge Bergfald

Hans Åge Bergfald 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).

  • Publication number: 20150047949
    Abstract: The invention is an escalator handrail cleaning apparatus for a running handrail (1) on a guide rail (11) along an escalator (12), wherein the cleaning apparatus comprises:—a main body (3) with a preferably underlying, generally through channel (31) for the handrail (1) to pass through,—a steam supply hose (2) to a longitudinally running inlet channel (21) in the main body (3) and connected to one or more across distribution channels (5) in the main body (3),—a number of steam nozzles (6) from the distribution channel (5) directed towards the through passing handrail (1),—at least a first and a second squeegee gasket (7) for delimiting a space (38) in the through channel (31) between the main body (3), the through running handrail (1), and the surroundings and arranged for wiping off water and dirt from the through running handrail (1),—at least one drain channel (41) from the space (38) wherein the drain channel (41) conducts water, steam and dirt to a return hose (4), preferably by vacuum.
    Type: Application
    Filed: March 20, 2013
    Publication date: February 19, 2015
    Applicant: TECNOVAP AS
    Inventors: Svein Røthe, Hans Åge Bergfald, Thomas Tjelland