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. 04, 2018
Filed:
Sep. 04, 2015
Motorola Solutions, Inc., Schaumburg, IL (US);
David W. Wallis, Atlanta, GA (US);
MOTOROLA SOLUTIONS, INC., Chicago, IL (US);
Abstract
An ultrasonic transmitter. The ultrasonic transmitter includes a first enclosure, a second enclosure, a piezoelectric transducer, a first piston, and a second piston. The first enclosure has an opening for directing an output of the ultrasonic transmitter in a first direction and a wall opposite the opening. The second enclosure has a first opening aligned in the first direction and a second opening opposite the first opening. The second enclosure is positioned in the first enclosure with the second opening directed toward the wall. The piezoelectric transducer is positioned in the second enclosure and movable relative to the first enclosure. When an ultrasonic electric signal is applied to the piezoelectric transducer, the piezoelectric transducer expands and contracts pulsing the first and second pistons to produce ultrasonic sound waves from the first and second openings which combine and our output by the ultrasonic transmitter.