Game call volume chamber

Abstract

A modular elk call system comprising generally a mouthpiece assembly, a tubular portion, and a resonance producing end. The mouthpiece assembly can be completely removed from the call to enable the tubular section and resonance producing end piece to be used separately with any other type of call. The mouthpiece assembly comprises a detachable snap-on diaphragm that insures accurate, consistent tension of the membrane to allow high quality tones to be produced. Alternatively, a sheet of membrane material can be attached to the end of the mouthpiece assembly to create high quality tones. The resonance producing end piece allows the call to produce a resonant sound highly similar to a bugling bull elk.

1 . A modular game call system, comprising: 
 a tubular section having a first end and a second end;    a mouthpiece section removably coupled to the tubular section, the mouthpiece section comprising a mouthpiece body having an inlet end and an outlet end, a diaphragm comprising a membrane material coupled to the inlet end of the mouthpiece body, and an annular ridge formed at one end of the mouthpiece body, the annular ridge including a concave portion into which a portion of the user's lip is positioned;    a sound chamber coupled to the second end of the tubular section, the sound chamber providing an exit end to the game call system, the sound chamber having a rapid expansion section and a narrowing section extending from the rapid expansion section toward the exit end.    
     
     
         2 . A modular game call according to  claim 1  wherein the mouthpiece body includes an annular end knob integrally extending around the circumference of the mouthpiece body, the annular end knob including a circumferential edge, and the diaphragm includes a locking rim engaging the circumferential edge to lock the diaphragm in position on the inlet end of the mouthpiece body.  
     
     
         3 . A modular game call according to  claim 1  wherein the mouthpiece body includes an annular end knob integrally extending around the circumference of the mouthpiece body, the annular end knob including a circumferential edge, and the diaphragm includes a locking rim engaging the circumferential edge to lock the diaphragm in position on the inlet end of the mouthpiece body, and further comprising an annular rib extending radially outwardly from the mouthpiece body, the locking rim engaging the rib to prevent longitudinal displacement of the locking rim relative to the mouthpiece body.  
     
     
         4 . A modular game call according to  claim 1  further comprising an end cap for removably positioning over the inlet end of the mouthpiece body, the end cap including a storage area for holding accessories for the call system.  
     
     
         5 . A modular game call according to  claim 1  wherein the mouthpiece body further comprises a support shelf mounted to underlie a portion of the membrane material.  
     
     
         6 . A modular game call according to  claim 1  wherein the mouthpiece body further comprises a support shelf mounted to underlie a portion of the membrane material, and further comprising a dished-out area formed in the support shelf.  
     
     
         7 . A modular game call according to  claim 1  wherein the membrane material has a varying thickness.  
     
     
         8 . A modular game call according to  claim 1  wherein membrane material includes an arcuate edge.  
     
     
         9 . A modular game call according to  claim 1  wherein membrane material includes an arcuate edge having an apex, the membrane material having a varying thickness, the membrane material being relatively thinner proximate the apex of the arcuate edge as compared to other areas of the membrane material along the arcuate edge.  
     
     
         10 . A game call apparatus, comprising 
 a main body portion;    a mouth-engaging end;    an annular end knob section;    a concave portion formed in the annular knob to allow the caller's lip to be inserted into the opening of the call.    
     
     
         11 . A game call apparatus according to  claim 10  wherein the mouthpiece body includes an annular end knob integrally extending around the circumference of the mouthpiece body, the annular end knob including a circumferential edge, and the diaphragm includes a locking rim engaging the circumferential edge to lock the diaphragm in position on the inlet end of the mouthpiece body.  
     
     
         12 . A game call apparatus according to  claim 10  wherein the mouthpiece body includes an annular end knob integrally extending around the circumference of the mouthpiece body, the annular end knob including a circumferential edge, and the diaphragm includes a locking rim engaging the circumferential edge to lock the diaphragm in position on the inlet end of the mouthpiece body, and further comprising an annular rib extending radially outwardly from the mouthpiece body, the locking rim engaging the rib to prevent longitudinal displacement of the locking rim relative to the mouthpiece body.  
     
     
         13 . A game call apparatus according to  claim 10  wherein the mouthpiece body further comprises a support shelf mounted to underlie a portion of the membrane material, and further comprising a dished-out area formed in the support shelf.  
     
     
         14 . A game call apparatus according to  claim 10  further comprising an end cap for removably positioning over the inlet end of the mouthpiece body, the end cap including a storage area for holding accessories for the call system.  
     
     
         15 . A game call apparatus according to  claim 10  wherein the mouthpiece body further comprises a support shelf mounted to underlie a portion of the membrane material.  
     
     
         16 . A game call apparatus according to  claim 10  wherein the membrane material has a varying thickness.  
     
     
         17 . A game call apparatus according to  claim 10  wherein membrane material includes an arcuate edge.  
     
     
         18 . A game call apparatus according to  claim 10  wherein membrane material includes an arcuate edge having an apex, the membrane material having a varying thickness, the membrane material being relatively thinner proximate the apex of the arcuate edge as compared to other areas of the membrane material along the arcuate edge.  
     
     
         19 . A game call apparatus according to  claim 10  wherein reed is snap on diaphragm.  
     
     
         20 . A game call apparatus according to  claim 10  wherein the reed comprises membrane of material.  
     
     
         21 . A diaphragm for calling game animals, comprising: 
 a diaphragm for use in connection with a game call device, the diaphragm comprising a membrane material having variable thickness.    
     
     
         22 . A diaphragm for calling game animals according to  claim 21  wherein the membrane material includes a first region and a second region, the first region being relatively thicker than the second region.  
     
     
         23 . A diaphragm for calling game animals according to  claim 21  wherein the membrane material includes a first region and a second region, the first region being relatively thicker than the second region, the first region being located radially outwardly from the second region.  
     
     
         24 . A diaphragm for calling game animals according to  claim 21  further comprising a peripheral rim circumscribing the membrane material.  
     
     
         25 . A diaphragm for calling game animals according to  claim 21  wherein the diaphragm material includes a free edge extending between two locations on the peripheral rim, the free edge being arcuate and defining an opening through which air is directed, the free edge vibrating when air is directed through the opening to create sounds.  
     
     
         26 . A diaphragm for calling game animals according to  claim 21  further comprising an arcuate shaped edge, the edge becoming more acuate shaped the diaphragm material is stretched over a game call.  
     
     
         27 . A modular game call system, comprising: 
 a tube portion having a diameter, a first end, and a second end;    a volume chamber attached to the second end of the tube portion, the volume chamber comprising;    a rapid expansion section extending from the first section and terminating at a maximum diameter area;    a narrowing section gradually narrowing from the maximum diameter area to a minimum diameter area;    a restricted outlet section    
     
     
         28 . A modular game call system according to  claim 27  further comprising a transition section having a diameter approximately equal to the tube diameter;  
     
     
         29 . A modular game call system according to  claim 27  wherein the narrowing section is more than twice as long as the rapid expansion section.  
     
     
         30 . A modular game call system according to  claim 27  wherein the narrowing section is approximately four times as long as the rapid expansion section.  
     
     
         31 . A modular game call system according to  claim 27  wherein the transition section is longer than the rapid expansion section.  
     
     
         32 . A modular game call system according to  claim 27  wherein the narrowing section is more than twice as long as the rapid expansion section, and the transition section is longer than the rapid expansion section.  
     
     
         33 . A modular game call system according to  claim 27  wherein the narrowing section is longer than the transition section.  
     
     
         34 . A modular game call system according to  claim 27  wherein the narrowing section is more than twice as long as the transition section.  
     
     
         35 . A modular game call system according to  claim 27  wherein the restricted section is shorter in length than either the rapid expansion section or the narrowing section.  
     
     
         36 . A modular game call system according to  claim 27  wherein the transition section is located at a first downstream position, the rapid expansion section is located at a second downstream position, the narrowing section is located at a third downstream position, and the restricted section is located at a fourth downstream position.  
     
     
         37 . A modular game call system according to  claim 27  wherein the volume chamber is integral with the tube portion.