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:
Sep. 05, 2006
Filed:
Sep. 30, 2003
Paul G. Janitch, Lisle, IL (US);
John S. Benway, Northbrook, IL (US);
Stephen A. Reynolds, Downers Grove, IL (US);
Stanislaw Bleszynski, Lakefield, CA;
Paul G. Janitch, Lisle, IL (US);
John S. Benway, Northbrook, IL (US);
Stephen A. Reynolds, Downers Grove, IL (US);
Stanislaw Bleszynski, Lakefield, CA;
Magnetrol International, Inc., Downers Grove, IL (US);
Abstract
A process control instrument comprises a control for generating or receiving a high frequency signal. A waveguide comprises a cylindrical housing closed at one end by a rear wall. A loop launcher is operatively connected to the control and comprises a wire having a first straight leg electrically connected at one end to the control and extending into the waveguide a first select length. A second straight leg is connected at one end to the rear wall and extends into the waveguide a second select length, greater than the first select length. A curved middle section connects the other ends of the first and second straight legs. An antenna is operatively coupled to the waveguide.