Patents by Inventor Bert G. Wurst

Bert G. Wurst 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: 6442844
    Abstract: A cutting knife for a cutting tool for cutting through adhesive beads on glass panes of vehicles is disclosed having a cross section that is bent into a U-shape and comprises a first limb, configured as an attachment part, with a receiving opening for attachment to an oscillating drive, and a second limb that is configured as a cutting part and is joined via an intermediate part to the attachment part of the cutting knife. The intermediate part and the cutting part being shaped such that a distance exists in a radial direction between a center point of the receiving opening and at least one cutting edge. The cutting part has, in a middle region between its outer free end and its angled transition to the intermediate part, a width that is greater than the width at the transition.
    Type: Grant
    Filed: November 17, 1999
    Date of Patent: September 3, 2002
    Assignee: C. & E. Fein GmbH & Co.
    Inventors: Peter Grunikiewicz, Bert G. Wurst
  • Patent number: 6434835
    Abstract: The invention describes a cutting knife for a cutting tool for cutting through adhesive beads on glass panes of vehicles, having a cross section that is bent into a U-shape and comprises a first limb, configured as the attachment part, with a receiving opening for attachment to an oscillating drive, and a second limb that is configured as the cutting part and is joined via an intermediate part to the attachment part of the cutting knife, the intermediate part and the cutting part being shaped such that a distance exists in the radial direction between the center point of the receiving opening and at least one cutting edge. The cutting part has, in a middle region between its outer free end and its angled transition to the intermediate part, a lesser width than at the transition and at the outer end. This results in a reduced susceptibility to breakage.
    Type: Grant
    Filed: November 17, 1999
    Date of Patent: August 20, 2002
    Assignee: C. & E. Fein GmbH & Co.
    Inventors: Peter Grunikiewicz, Bert G. Wurst
  • Publication number: 20020104421
    Abstract: A saw blade is disclosed which comprises a fixing receptacle for fixation on an oscillating drivable drive shaft, having a cutter that is distanced from the fixing receptacle, the cutter extending essentially tangentially or arch-shaped with respect to the fixing receptacle and being provided with a plurality of saw teeth. The cutter comprises at least a first section and a second section, and the saw teeth have at least in the area of one section another spacing or another set of saw teeth than in the other section. The saw blade allows a precise application to the object to be cut and a later continuation of the cutting process with increased feed.
    Type: Application
    Filed: September 24, 2001
    Publication date: August 8, 2002
    Inventor: Bert G. Wurst
  • Patent number: 6422110
    Abstract: A cutting knife and a method for production are provided, the knife being suitable for severing tough, elastic material, in particular cement beads of window panes cemented in motor vehicles. The knife comprises a securement portion having a securement receptacle for securing the cutting knife to an oscillatory drive of a cutting tool, and a cutting portion with at least one cutting edge. The cutting knife comprises a plurality of flat bonded layers, which are preferably bonded together by forging. Additionally or alternatively, an outer wear resistant layer is applied, preferably by thermal spraying. The cutting knife has an improved elasticity and increased bending strength in combination with improved cutting properties.
    Type: Grant
    Filed: July 25, 2000
    Date of Patent: July 23, 2002
    Assignee: C & E. Fein GmbH & Co.
    Inventors: Bert G. Wurst, Stefan Gahlert
  • Publication number: 20020023357
    Abstract: The invention describes a cutting knife for a cutting tool for cutting through adhesive beads on glass panes of vehicles, having a cross section that is bent into a U-shape and comprises a first limb, configured as the attachment part, with a receiving opening for attachment to an oscillating drive, and a second limb that is configured as the cutting part and is joined via an intermediate part to the attachment part of the cutting knife, the intermediate part and the cutting part being shaped such that a distance exists in the radial direction between the center point of the receiving opening and at least one cutting edge. The cutting part has, in a middle region between its outer free end and its angled transition to the intermediate part, a lesser width than at the transition and at the outer end. This results in a reduced susceptibility to breakage.
    Type: Application
    Filed: November 17, 1999
    Publication date: February 28, 2002
    Inventors: PETER GRUNIKIEWICZ, BERT G. WURST
  • Publication number: 20020023358
    Abstract: A cutting knife for a cutting tool for cutting through adhesive beads on glass panes of vehicles is disclosed having a cross section that is bent into a U-shape and comprises a first limb, configured as an attachment part, with a receiving opening for attachment to an oscillating drive, and a second limb that is configured as a cutting part and is joined via an intermediate part to the attachment part of the cutting knife. The intermediate part and the cutting part being shaped such that a distance exists in a radial direction between a center point of the receiving opening and at least one cutting edge. The cutting part has, in a middle region between its outer free end and its angled transition to the intermediate part, a width that is greater than the width at the transition.
    Type: Application
    Filed: November 17, 1999
    Publication date: February 28, 2002
    Inventors: PETER GRUNIKIEWICZ, BERT G. WURST
  • Patent number: 6099397
    Abstract: A power sander comprising an oscillating drive for oscillatingly driving a sanding tool about an axis fixed with respect to a housing is disclosed. The sanding tool comprises a sanding plate arranged on the sanding tool and having at least two side edges which converge in at least one corner and are arranged symmetrically with respect to a center point. A receptacle for mounting the sanding plate on the drive shaft is arranged on the sanding plate eccentrically with respect to the center point.
    Type: Grant
    Filed: March 5, 1999
    Date of Patent: August 8, 2000
    Assignee: C. & E. Fein GmbH & Co.
    Inventor: Bert G. Wurst