Patents Assigned to JOHANNES FRANZEN GMBH & CO. KG
  • Sharpening device for power saw chains
    Patent number: 9321113
    Abstract: A sharpening device for power chain saws, comprising a chain clamping unit and an advance element for advancing the saw chain. The chain clamping unit and the advance element are arranged on a base plate. In a given arrangement, the chain clamping unit and the advance element can be arranged on the base plate and different base plates having elements arranged thereon can be used for sharpening different power chain saws.
    Type: Grant
    Filed: March 15, 2010
    Date of Patent: April 26, 2016
    Assignee: Johannes Franzen GmbH & Co. KG
    Inventor: Johannes Franzen
  • Blade grinder comprising a blade holder
    Patent number: 8986075
    Abstract: Disclosed is a blade grinder comprising a blade holder that is mounted so as to be rotatable about a horizontal shaft which is mounted so as to be rotatable about a vertical axis, thus allowing the blade to be optimally adjusted relative to a grinding disk. The grinding disk can preferably be vertically and horizontally moved using spindles. This creates a simple design allowing a lawnmower blade to be ground in a fully automatic manner.
    Type: Grant
    Filed: August 3, 2011
    Date of Patent: March 24, 2015
    Assignee: Johannes Franzen GmbH & Co. KG
    Inventor: Johannes Franzen
  • BLADE GRINDER COMPRISING A BLADE HOLDER
    Publication number: 20130157547
    Abstract: Disclosed is a blade grinder comprising a blade holder that is mounted so as to be rotatable about a horizontal shaft which is mounted so as to be rotatable about a vertical axis, thus allowing the blade to be optimally adjusted relative to a grinding disk. The grinding disk can preferably be vertically and horizontally moved using spindles. This creates a simple design allowing a lawnmower blade to be ground in a fully automatic manner.
    Type: Application
    Filed: August 3, 2011
    Publication date: June 20, 2013
    Applicant: JOHANNES FRANZEN GMBH & CO. KG
    Inventor: Johannes Franzen