The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 28, 1995
Filed:
Sep. 24, 1992
Timothy A Schlobohm, Madison, WI (US);
Patrick D Maloney, Madison, WI (US);
Smart Grade Incorporated, Madison, WI (US);
Abstract
An electronic survey stadia to ascertain distance and elevation data from a rotary laser beam(s) in relation to known points. To ascertain elevation data stadia is in perpendicular position in relation to rotary laser beam plane. When beam impinges upon stadia, a measurement is taken by evaluation circuit, processed by an algorithm, then stored in memory and output to display device for use. To ascertain distance measurements, stadia is placed parallel in rotary laser beam(s) plane. The stadia self calibrates by counting rotational speed of laser beam. Once RPM and direction are established, stadia then measures time of laser beam to cover a known distance within stadia. This value is then used in an algorithm to produce distance measurements, thus producing distance and elevation data to memory and display.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile