Patents by Inventor Ruedi Dummermuth-Furter

Ruedi Dummermuth-Furter 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 the removal of floor coverings
    Publication number: 20090295217
    Abstract: A method and the associated apparatus for the removal of floor coverings are presented. The removal of floor coverings is achieved in that up to 24 grooves (21) with a width (b) of 3 mm to 10 mm and with a depth (t) of up to 40 mm are simultaneously milled into the floor covering (20) at spacings (a) of 5 mm to 30 mm. The ribs (22) occurring between the grooves (21) are then knocked off by simple means, such as hammers, chisels or picks. In a second operation, by means of the same apparatus, further grooves (21) are milled transversely thereto, so that only rectangular elevations remain which can be knocked off with ease.
    Type: Application
    Filed: May 11, 2009
    Publication date: December 3, 2009
    Applicant: AIRTEC AG
    Inventor: Ruedi Dummermuth-Furter
  • Floor sanding machine
    Patent number: 7393267
    Abstract: A floor sanding machine is proposed, which consists of a case body (11) and a plurality of sanding tools (30) arranged eccentrically in the case body (11). The axes of the tool shafts (31) rotate about the axis of a central shaft (12), and the sanding tools (30) rotate about the axis of the tool shaft. The construction consists essentially of a belt drive, of which the unilaterally grooved drive belt (3) is driven on the grooved side of the main drive pulley (2) and drives a gear mechanism (5). Also on the grooved side of the drive belt (3), a belt tensioner (6) ensures that the drive belt (3) is always under sufficient tension. The tools (4) are driven via the non-grooved side of the drive belt (3).
    Type: Grant
    Filed: January 8, 2007
    Date of Patent: July 1, 2008
    Assignee: Airtec AG
    Inventor: Ruedi Dummermuth-Furter
  • Floor sanding machine
    Publication number: 20070184762
    Abstract: A floor sanding machine is proposed, which consists of a case body (11) and a plurality of sanding tools (30) arranged eccentrically in the case body (11). The axes of the tool shafts (31) rotate about the axis of a central shaft (12), and the sanding tools (30) rotate about the axis of the tool shaft. The construction consists essentially of a belt drive, of which the unilaterally grooved drive belt (3) is driven on the grooved side of the main drive pulley (2) and drives a gear mechanism (5). Also on the grooved side of the drive belt (3), a belt tensioner (6) ensures that the drive belt (3) is always under sufficient tension. The tools (4) are driven via the non-grooved side of the drive belt (3).
    Type: Application
    Filed: January 8, 2007
    Publication date: August 9, 2007
    Inventor: Ruedi Dummermuth-Furter