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:
Jul. 05, 2016
John Christ, Ozone Park, NY (US);
John Christ, Ozone Park, NY (US);
Other;
Abstract
The dual-chamber whistle is a sound producing device that creates a first air flow, a second air flow and a third air flow within the dual-chamber whistle. The basic sound of the dual-chamber whistle is generated by a first turbulence created the interaction of the first air flow and the second air flow. The third air flow also interacts with both the first air flow and the second air flow to create a second turbulence. This second turbulence creates an additional sound called the oversound. While actual patterns of turbulences created in both the first turbulence and the second turbulence are essentially random, the human psychological response to the oversound is to interpret the oversound as an actual call for help. The dual-chamber whistle comprises an intake, an exhaust, and a router which creates a complex air flow.