Patents by Inventor Hermann Gauch

Hermann Gauch 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).

  • Thread cutting device and method for a chain stitch sewing machine
    Patent number: 5469798
    Abstract: A thread cutting device for a chain-stitch sewing machine having a cylindrical arm (2) moves a thread catcher (14) towards a thread-catching position in a jerk-free manner utilizing a sliding and pivoting guide. A carrier (19) displaces a knife (15) and a thread clamp (16) into a cutting position for the cutting of threads caught by the thread catcher (14).
    Type: Grant
    Filed: July 13, 1994
    Date of Patent: November 28, 1995
    Assignee: Union Special GmbH
    Inventor: Hermann Gauch
  • Upper feed mechanism for sewing machines
    Patent number: 4582010
    Abstract: An upper feed mechanism positively driven in four directions above the work supporting surface of the machine for concommitantly advancing work along a predetermined feed path. The upper feed mechanism includes an upper feed dog carried on the presser arm of the machine. In the usual manner, the presser arm has a presser foot hinged at one end thereof. The opposite end of the presser arm is slidably pivoted relative the machine frame such that the presser arm, presser foot and upper feed dog mechanism may be conjointly moved sidewise as a modular assemblage thus permitting operating access to the sewing area of the machine.
    Type: Grant
    Filed: March 21, 1985
    Date of Patent: April 15, 1986
    Assignee: Union Special GmbH
    Inventors: Wolfgang Niem, Hermann Gauch
  • Lubricant sensing device for sewing machines
    Patent number: 4417534
    Abstract: The present invention relates to a device for monitoring fluid flow through a pressurized lubrication system. The device includes a reciprocally arranged indicator that is responsive to fluid pressures within the lubrication system for exteriorally indicating the lubricant flow as a function of the reciprocal position of the indicator.
    Type: Grant
    Filed: June 25, 1981
    Date of Patent: November 29, 1983
    Assignee: Union Special G.m.b.H.
    Inventors: Hermann Gauch, Wolf R. von Hagen
  • Thread trimming mechanism for sewing machines
    Patent number: 4332209
    Abstract: A thread trimming mechanism which includes a fixed blade arranged adjacent the stitch forming area of the sewing machine and a resiliently biased movable blade adapted to cooperate in a scissor-like action with the fixed blade. The movable blade is mounted such that varying degrees of contact pressure may occur between the blades during the thread trimming cycle of the mechanism.
    Type: Grant
    Filed: July 9, 1980
    Date of Patent: June 1, 1982
    Assignee: Union Special G.m.b.H.
    Inventor: Hermann Gauch
  • Cooling device for sewing machines
    Patent number: 4062310
    Abstract: A sewing machine provided with a fan which is formed as an integral part of the handwheel and drive pulley and serves the purpose of drawing air there through for cooling. A shroud and a baffle cooperate to direct the air drawn in by the fan downward and over the bottom cover of the sewing machine which is provided with heat dissipating fins.
    Type: Grant
    Filed: July 28, 1976
    Date of Patent: December 13, 1977
    Assignee: Union Special G.m.b.H.
    Inventors: Hermann Gauch, Dieter Schopf
  • Cooling device for sewing machines
    Patent number: RE30907
    Abstract: A sewing machine provided with a fan which is formed as an integral part of the handwheel and drive pulley and serves the purpose of drawing air there through for cooling. A shroud and a baffle cooperate to direct the air drawn in by the fan downward and over the bottom cover of the sewing machine which is provided with heat dissipating fins.
    Type: Grant
    Filed: November 15, 1979
    Date of Patent: April 20, 1982
    Assignee: Union Special G.m.b.H.
    Inventors: Hermann Gauch, Dieter Schopf