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:
Feb. 07, 2017
Filed:
May. 01, 2014
Raf Technology, Inc., Redmond, WA (US);
Bryan Turner, Redmond, WA (US);
RAF Technology, Inc., Redmond, WA (US);
Abstract
Weighing system (FIG., FIG.) to weigh items, parcels and the like while they are moving, for example, on a conveyor. A servo amplifier () and servo controller () are arranged to drive a servo motor in a feedback () configuration, and acquire torque sensing signals () responsive to commanded acceleration of the conveyor while the item(s) are on board. Preferably, constant acceleration of the item(s) is realized during one or more measurement intervals, and mass is derived by a processor () based on the measurement data (FIG.). Other embodiments are described for weighing granular and slurry materials (FIG.) and for weighing multiple, potentially overlapping, parcels in motion (FIG.).