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. 18, 2022
Filed:
May. 13, 2020
Rockwell Automation Technologies, Inc., Mayfield Heights, OH (US);
Girish S. Mali, Chelmsford, MA (US);
Timothy P. Wolfe, Chelmsford, MA (US);
Rockwell Automation Technologies, Inc., Mayfield Heights, OH (US);
Abstract
For locking industrial safety guarding, a sensor includes an inductive coil that generates a second sensing field about a second sensing field axis at a second frequency that detects advancement of a locking bolt. The sensor further includes at least two radio frequency identifier (RFID) coils that generate a first sensing field at a first frequency that detects an RFID tag. A second RFID coil of the at least two RFID coils has a second polarity reversed from a first polarity a first RFID coil of the at least two RFID coils and reduces the first sensing field at the second sensing field axis.