US 3772823 A
A moose call with a tubular hardwood mouthpiece for passage of air to vibrate the low frequency reed, an elongate tube extending from the front of the mouthpiece and having an end ring providing sound reflective surfaces to cause reverberation of sound in the elongate tube and producing an output sound simulating the mating call of a moose.
Description (OCR text may contain errors)
O Umted States Patent 11 1 [111 3,772,23
Herter [4 Nov. 20, 1973 MOOSE CALL 3,670,452 6/1972 Turner 46/181 75 l t l 1 men or George L Hemr w Mmn Primary ExaminerLouis G. Mancene  Assignee: Herters lnc., Waseca, Minn. Assistant Examiner-Robert F. Cutting  Filed: June 29, 1972 Attorney-George F. Williamson et al.
[ 1] pp 267,421 51 ABSTRACT A moose call with a tubular hardwood mouthpiece for  US. Cl. 46/180 passage of air to vibrate the low frequency reed, an  Int. Cl A6311 5/00 elongate tube extending from the front of the mouth-  Field of Search 46/178, 180, 181 piece and having an end ring providing sound reflective surfaces to cause reverberation of sound in the  References Cited elongate tube and producing an output sound simulat- UNITED STATES PATENTS ing the mating call of a moose.
3,656,258 4/1972 Thomas 46/ 180 2 Claims, 3 Drawing Figures 7 V-!, i i i 5* MOOSE CALL BRIEF SUMMARY OF THE INVENTION This invention relates to the provision of a moose call which is designed to produce internal reverberation and emission of extremely low pitched audio frequency sounds simulating the mating call of a moose. The hardwood mouthpiece with the low frequency vibrating air operated reed is connected with an elongate reverberation tube at the sound emission end of the mouthpiece so as to receive the sound and cause reverberation thereof in the tube and the reflection of the sound by the ring at the outermost end of the tube from which sounds are emitted.
BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is an elevation view of the moose call.
FIG. 2 is a greatly enlarged section view with portions broken away for clarity of detail and taken on a longitudinal axis substantially as indicated at 2-2 in FIG. 1.
FIG. 3 is a cross section view taken approximately at 3-3 in FIG. 1.
DETAILED DESCRIPTION OF THE INVENTION One form of the invention is shown in the drawings and is described herein. The moose call is indicated in general by numeral and includes a hardwood mouthpiece l l, the rear end 12 of which is to be placed against the lips of a persons mouth so that air may be forced through the longitudinal passage 13 of the mouthpiece. A vibratable reed 14 is carried within the passage 13 of the mouthpiece and is supported by a rigid mounting structure 15 which may be formed of rigid molded plastic formed to fit tightly as at 15a within the passage 13 of the mouthpiece to be held therein by a frictional relationship. The mounting 15 for the reed 14 has air passages 16 longitudinally therethrough, and a cone-shaped and flared outlet end 17 of the reed mounting structure provides a sound emission outlet of the mouthpiece 11.
An elongate reverberation tube 18 constructed of relatively stiff, but slightly resiliently yieldable extruded plastic material has a rear end 19 telescoped over the forward portion of the hardwood mouthpiece 11 to be securely fastened thereto. It is desired in most instances to provide some adhesive between the mouthpiece l1 and the reverberation tube 18.
A hardwood annular ring 20 has a ledge portion 21 receiving the forward end 22 of the reverberation tube in tight fitting relation, and the ring 20'defines a rearwardly facing sound reflecting shoulder surface 23 against which the sound waves from the mouthpiece and reed impinge and are reflected within the tube 18 to cause reverberation of the sound therein.
It will be understood that the ordinary resonant frequency of the reed 14 is at the extreme low end of the audible audio frequency range and that when such sound by the reed is produced due to passage of air through the mouthpiece, the sound is emitted into the elongate tube 18 to be reverberated and reflected and then emitted through the outlet opening 24 of the ring 20. It will be noted that the length of the sound tube greatly exceeds the length of the mouthpiece and greatly exceeds the wave length of the very low frequency audio sounds produced. The internal diameter of the tube 18 is less than ten times the length of the tube 18 and provides no substantial restrictions to pas- 10 closely simulate the mating call of a moose.
What is claimed is:
l. A sound-producing apparatus to simulate the mating call of a moose, comprising:
an elongate mouthpiece having an air passage ex- 15 tending 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;
20 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;
25 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 30 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.
2. A sound-producing apparatus to simulate the mating call of a moose, comprising:
an elongate mouthpiece having an air passage ex tending longitudinally therethrough, the mouthpiece having a rear end to be placed against a persons 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 periphcry 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 facing rearwardly within the interior of the soundreverberating 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 soundreverberating tube and reverberating therein.