Diaphragm game call with tone modifying slits

Details Diaphragm game call with tone modifying slits Diaphragm game call with tone modifying slits

1989-01-24

1990-05-22

Hafer, Robert A.

Amusement devices: toys

Operated by relatively moving fluid or pressure differential

Including mouthpiece for blowing or sucking

446203, 446188, A63H 500

Patent

active

049273990

ABSTRACT:
The present invention provides a dual diaphragm-type game caller of a size and shape suitable for inserting into a user's mouth for support against the roof of the mouth so that free edges of two diaphragms retained together as a unit in a spaced-apart relationship can concurrently vibrate when impinged by pulmonary air exhausted by the user. The invention employs two diaphragms having a selected pattern of slits which allow the caller to produce a flutter or raspy sound effect which is sometimes desired by the wild turkey hunter.

REFERENCES:
patent: 978943 (1910-12-01), Schwartz
patent: 1856625 (1932-05-01), Dressler
patent: 2256925 (1941-09-01), McCoy
patent: 2385752 (1945-09-01), Wilson
patent: 3791653 (1974-02-01), Yamada
patent: 4151678 (1979-05-01), Robertson
patent: 4341037 (1982-07-01), Moss
patent: 4371278 (1983-02-01), Joo
patent: 4483097 (1984-11-01), Piper
patent: 4764145 (1988-08-01), Kirby
Penn's Woods Products catalog, "Turkey Calls & Accessories".

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