Patent ID: 7176367
Filing Date: 2007-02-13
Classification: B43K,G10K

Abstract:
1. A pen instrument with a whistle mounted to a rear end of said pen instrument, said whistle comprising: a tubular body having a first open end and a second open end, and defining an inner space; a connecting sleeve having a rear end connected to the first open end of said tubular body, and a front end connected to a rear end of said pen instrument, so as to connect said whistle to said pen instrument; a whistle-producing reed structure fixedly provided in said inner space of said tubular body and including a reed, said reed being adapted to produce whistle when an amount of air flows through said inner space of said tubular body to vibrate said reed; and a cut-off device provided in said tubular body at a predetermined position operable by a user to move between a first position, in which said inner space of said tubular body is open to allow air to flow from said first open end to said second open end of said tubular body, and a second position, in which said inner space of said tubular body is blocked to prevent air from flowing between said first open end and said second end.