Patents by Inventor Rainer Stuhlmuller

Rainer Stuhlmuller 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).

  • Optoelectronic stadia
    Patent number: 4730920
    Abstract: An optoelectronic stadia is proposed, which is intended for a levelling system with a rotary laser. The stadia has at least one vertical row of light sensitive diodes, which are electrically connected in matrix form. One diode pair in each case forms one matrix node. The column signals and line signals are decoded and evaluated in an evaluation apparatus and the measured result is supplied to a display means. The matrix arrangement of the diodes leads to a very simple construction with relatively few components.
    Type: Grant
    Filed: March 24, 1986
    Date of Patent: March 15, 1988
    Assignee: Nestle & Fischer
    Inventors: Harald Schlemmer, Rainer Stuhlmuller
  • Levelling system with rotating laser beam
    Patent number: 4718171
    Abstract: A levelling system with a rotating laser beam and an optoelectronic stadia is proposed, in which the height of the laser beam is varied. Several individual measurements are made during a measuring cycle and as a result of the height variation of the laser beam these give different height values. Thus, for example, 20 individual measurements can be used for determining the arithmetic mean, which considerably increases the precision of measurement.
    Type: Grant
    Filed: December 29, 1986
    Date of Patent: January 12, 1988
    Assignee: Nestle & Fischer
    Inventors: Harald Schlemmer, Rainer Stuhlmuller