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:
Apr. 28, 2015
Filed:
Aug. 16, 2011
Applicants:
Douglas W. Arntson, Maple Grove, MN (US);
Jason H. Rud, Mayer, MN (US);
Inventors:
Douglas W. Arntson, Maple Grove, MN (US);
Jason H. Rud, Mayer, MN (US);
Assignee:
Rosemount Inc., Eden Prairie, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 31/00 (2006.01); G05B 15/02 (2006.01); G05B 23/02 (2006.01); G08C 25/00 (2006.01);
U.S. Cl.
CPC ...
G08C 25/00 (2013.01);
Abstract
A process variable transmitter controls a signal on a communication loop. A diagnostic component on the transmitter compares an expected signal level on the communication loop with an actual value to detect on-scale errors.