Gravitationally-actuating missing reminder for pocket article

Claim 1

A missing reminder for pocket article comprising: a wallet normally stored in a user's pocket having two leaves foldable upon each other and having bags therein for storing credit cards or valuable documents; a gravitational actuator including an outer tube clamped on a central folding portion intermediate between the two leaves of said wallet, an inner tube having a lower plug formed on a lower end of said inner tube movably sliding within the outer tube, a weight disk mounted on an upper portion of said inner tube, a contactor receiver made of insulating material retained on a central portion inside said outer tube having a central through hole formed therein slidably engageable with said inner tube, a top cap formed on a top end of said outer tube and a sliding pipe jacketing on said outer tube and slidingly moving said lower plug of said inner tube within said pipe, said pipes having a lower opening edge coinciding with a bottom edge of said wallet; and an alarming means having a buzzer and a battery stored in said outer tube, said buzzer having one electric terminal electrically connecting a right wire having a right contact formed on said contactor receiver and having the other electric terminal of said buzzer electrically connecting said battery and a left wire having a left contact formed on said receiver opposite to said right contact; said weight disk, normally suspending above said receiver when said lower plug being raised upwardly as retained by a user's pocket, having an electrically conductive plate formed on a bottom surface of said weight disk and gravitationally descending to seat on said contactor receiver to close two said contacts of said buzzer for sounding said buzzer when upwardly removing said wallet from a user's pocket.