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:
Oct. 30, 1990
Filed:
Mar. 14, 1988
Tommy B Molinar, Ft. Worth, TX (US);
Jerome E Johnston, Austin, TX (US);
General Electrodynamics Corporation, Arlington, TX (US);
Abstract
A microprocessor-based system (18) for weighing large objects, such as aircraft, at a number of points is disclosed. A plurality of load sensing units (10) each contain a strain gauges (50), analog amplification and calibration circuits (54), filtering circuits (56, 58), and analog-to-digital conversion circuitry (60). Each of the load sensing units (10) couple through serial data communication channels (14) to a controller (12), which contains a microprocessor (20), a keyboard (46), and a display (36). A microprocessor (20) executes a program which monitors all load sensing units (10), calculates weight based on data obtained from the load sensing units (10) and several compensation factors, and displays weight of a selected load sensing unit (10). Various foreground (200) and keyboard service (300) software routines are discussed.