Filed March 27, 1973 at 3:41 PM (!), and registered by the french National Institute of Intellectual Property (INPI) on 14th of October 1974, the patent FR2224062 claims priority on a « Instrument de musique à vent à résonateur variable », id est, a wind musical instrument with a variable resonator. The inventor is Mr. François Rabaud, french resident, and for sure, the instrument is a nose flute.
Whilst the shape of this nose flute is rather new, although showing obvious references to the first metal pioneers, it doesn't propose real innovation on the nose flute side. It is globally composed of 2 parts: a cubic air chamber and a large mouth shield.
The real novelty of Rabaud's flute lays in the fact that the instrument, despite a shape that clearly evoke early metal nose flutes, is primarily and in order of priority conceived for plastics.
Id est : « Regarding the materials used, they can be whatsoever: plastics notably. »
The two-parts air chamber, with its front lid, has been clearly thought and designed for the production by moulding :
Finally, Rabaud is the first (as far as I know) to think of an external air feeding [edit : since, I found a text which proves that the experiment was already made in 1916, with a bellows], and even and integrated amplifier:
Id est: « One will particularly notice that the air insufflation by the nose can be replaced by an artificial insufflation produced by pumps for instance, manually or electrically activated, the air flow being regulated according to the kind of playing that is wished. Likewise, the instrument can be provided with any system of mechanical or electronical amplification ».
So, François Rabaud with his nose flute mixing old features and modern concerns, with no real innovation, certainly is not elligible for a nomination to the Nose Flute Hall of Fame. However the instrument, or more exactly the patent itself, deserves our interest, in the fact it reflects the articulation between vintage and modern nose fluting.
One last word: Mr Rabaud is/was probably a nose flute player himself, as it can be deduced by his remark:
Id est: « Experience shows that the instrument new implementation principle allows altogether: staccato, trills, rollings as far as glissando, numerous effects being accessible thanks to the simple and instinctive playing required, that none of current instruments allow. »