Moose call

Claim 2

A sound-producing apparatus to simulate the mating call of a moose, comprising: an elongate mouthpiece having an air passage extending longitudinally therethrough, the mouthpiece having a rear end to be placed against a person''s mouth from which air is blown through the passage, the mouthpiece also having a forward sound emitting end; a sound generating reed anchored in the air passage of the mouthpiece and having a resonant frequency at the extreme low end of the audio frequency range to produce such a low frequency tone in response to air blown through the passage; a sound tube having its internal periphery telescoped over the outside of the mouthpiece and having an elongate shape many times longer than the mouthpiece, and greatly exceeding the wave length of the audio frequency sound produced, the sound tube having its sound outlet end spaced from the mouthpiece, and having internal diameter less than ten times the length of the tube and providing no substantial restriction to passage of sound and reverberation within the tube, said sound outlet end having a significant peripheral ledge facing rearwardly toward the mouthpiece, the low frequency sounds reverberating and being reflected within the tube and being emitted as a simulated mating call of a moose, said sound tube being formed of a stiff, but resiliently flexible extruded plastic which may deform slightly under influence of low frequency sound waves passing therethrough and reverberating therein.

Claim 3

A sound-producing apparatus to simulate the mating call of a moose, comprising: an elongate mouthpiece having an air passage extending longitudinally therethrough, the mouthpiece having a rear end to be placed against a person''s mouth from which air is blown through the passage, the mouthpiece also having a forward sound-emitting end; a sound-generating reed anchored in the air passage of the mouthpiece and having a resonant frequency at the extreme low of the audio frequency range to produce such a low frequency tone in response to air blown through the passage; a cone-shaped emission tube at the outlet end of the mouthpiece and communicating with the air passage therein through which the generated sounds are emitted; a sound-reverberating tube having an internal periphery of uniform size throughout the entire length of the tube and telescoped over the outside of the mouthpiece, said sound reverberating tube telescopically receiving the emission tube in spaced relation therewith so as to encompass the emission tube and an air space between the emission tube and the sound-reverberating tube, the sound reverberating tube having its sound outlet end spaced from the mouthpiece by a distance well in excess of ten times the internal diameter of the sound reverberating tube, said sound reverberating tube being formed of stiff but resiliently flexible plastic material so as to be capable of deformation under influence of the reverberating low frequency sounds passed therethrough and reverberated therein; and a hardwood annulus fitted in tight fitting frictional relation within the sound outlet end of the sound-reverberating tube and defining a peripheral ledge facing rearwardly within the interior of the sound-reverberating tube and toward the mouthpiece, the hardwood annulus and the mouthpiece both being telescopically received in opposite ends of the sound-reverberating tube and cooperating with each other to maintain the opposite ends of the sound-reverberating tube agaiNst deformation due to the sounds passing and reverberating therein while the intermediate portions of the reverberating tube are permitted to deform under influence of the sound waves passing through the sound-reverberating tube and reverberating therein.

Claim 4

A sound-producing apparatus to simulate the mating call of a moose, comprising: an elongate mouthpiece having an air passage extending longitudinally therethrough, the mouthpiece having a rear end to be placed against a person''s mouth from which air is blown through the passage, the mouthpiece also having a forward sound-emitting end; a sound-generating reed anchored in the air passage of the mouthpiece and having a resonant frequency at the extreme low of the audio frequency range to produce such a low frequency tone in response to air blown through the passage; a cone-shaped emission tube at the outlet end of the mouthpiece and communicating with the air passage therein through which the generated sounds are emitted; a sound-reverberating tube having an internal periphery of uniform size throughout the entire length of the tube and telescoped over the outside of the mouthpiece, said sound reverberating tube telescopically receiving the emission tube in spaced relation therewith so as to encompass the emission tube and an air space between the emission tube and the sound-reverberating tube, the sound reverberating tube having its sound outlet end spaced from the mouthpiece by a distance well in excess of ten times the internal diameter of the sound reverberating tube, said sound reverberating tube being formed of stiff but resiliently flexible plastic material so as to be capable of deformation under influence of the reverberating low frequency sounds passed therethrough and reverberated therein; and a hardwood annulus fitted in tight fitting frictional relation within the sound outlet end of the sound-reverberating tube and defining a peripheral ledge facing rearwardly within the interior of the sound-reverberating tube and toward the mouthpiece, the hardwood annulus and the mouthpiece both being telescopically received in opposite ends of the sound-reverberating tube and cooperating with each other to maintain the opposite ends of the sound-reverberating tube agaiNst deformation due to the sounds passing and reverberating therein while the intermediate portions of the reverberating tube are permitted to deform under influence of the sound waves passing through the sound-reverberating tube and reverberating therein.