Patents by Inventor David S. Klis

David S. Klis 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 for providing grooved roller with variable shoulders
    Patent number: 6588191
    Abstract: A plurality of annular collars are provided formed from collar halves. The collar halves are at least partially separable from one another to allow the collar halves to be slipped into and around a groove in a grooved roller for a reel-type cutting unit. The collar halves can then be abutted and secured together to substantially fill in the roller groove. When collars are placed into the last two or three grooves on each end of a grooved roller, a non-shouldered grooved roller is thereby converted into a shouldered grooved roller without having to remove and replace one set of rollers with another.
    Type: Grant
    Filed: July 25, 2001
    Date of Patent: July 8, 2003
    Assignee: The Toro Company
    Inventors: Dennis J. Berndt, Scott M. Coffin, David S. Klis, Richard M. Olson, Gerald J. Pomerening
  • Method and apparatus for providing grooved roller with variable shoulders
    Publication number: 20030019195
    Abstract: A plurality of annular collars are provided formed from collar halves. The collar halves are at least partially separable from one another to allow the collar halves to be slipped into and around a groove in a grooved roller for a reel-type cutting unit. The collar halves can then be abutted and secured together to substantially fill in the roller groove. When collars are placed into the last two or three grooves on each end of a grooved roller, a non-shouldered grooved roller is thereby converted into a shouldered grooved roller without having to remove and replace one set of rollers with another.
    Type: Application
    Filed: July 25, 2001
    Publication date: January 30, 2003
    Inventors: Dennis J. Berndt, David S. Klis, Richard M. Olson, Gerald J. Pomerening
  • Clutch assembly
    Patent number: 4294339
    Abstract: An improved clutch assembly is described which includes a safety spring member which is adapted to engage the free end of a broken clutch spring so that the clutch will continue to operate in normal fashion.
    Type: Grant
    Filed: December 21, 1979
    Date of Patent: October 13, 1981
    Assignee: The Toro Company
    Inventors: Bruce A. Granger, David S. Klis
  • Traction control mechanism for hydrostatic transmission
    Patent number: 4246803
    Abstract: A foot pedal is mounted on a control lever operatively connected to a hydrostatic transmission mechanism for a vehicle, for controlling forward and rearward movement of the vehicle. A damping member, operatively associated with the control lever, frictionally engages the pedal to restrain movement of the pedal and control lever, which movement may be caused by heavy vibration of the vehicle during travel over uneven terrain.
    Type: Grant
    Filed: July 29, 1977
    Date of Patent: January 27, 1981
    Inventors: David S. Klis, Walter J. Petersen