A wild game call includes a bugle tube and a damper. The bugle tube includes a first end with a first aperture, a second end with a second aperture, and a wall extending from the first end to the second end. The wall defines an interior volume, and the first aperture and the second aperture provide access to the interior volume such that a flow path is defined through the bugle tube from the first end, through the second end, and out the second end. The bugle tube includes a metal and is configured to generate sound waves by vibrating responsive to air flowing along the flow path. The damper surrounds the outer surface of the wall of the bugle tube between the first end and the second end and may reduce unwanted ringing while improving the sound of the bugle call.

An electronic horn device may include a horn module, one or more amplifiers, and a controller operably connected to the horn module via the one or more amplifiers. The horn module may be mounted onboard a vehicle. The horn module includes plural compression drivers and a horn body. The horn body includes a bell segment and plural branch segments fluidly connected to the bell segment. The compression drivers are respectively mounted to respective ends of the branch segments of the horn body. The one or more amplifiers are operably connected to the compression drivers of the horn module. The controller is configured to control the compression drivers to generate a horn sound that is emitted from the bell segment of the horn body in response to receipt of a first control signal.

An electronic horn device may include a horn module, one or more amplifiers, and a controller operably connected to the horn module via the one or more amplifiers. The horn module may be mounted onboard a vehicle. The horn module includes plural compression drivers and a horn body. The horn body includes a bell segment and plural branch segments fluidly connected to the bell segment. The compression drivers are respectively mounted to respective ends of the branch segments of the horn body. The one or more amplifiers are operably connected to the compression drivers of the horn module. The controller is configured to control the compression drivers to generate a horn sound that is emitted from the bell segment of the horn body in response to receipt of a first control signal.

Horn systems having a first bracket, a second bracket, a compressor and a horn are described. The horns may have a sound unit and a bell with tubing connecting the compressor and the sound unit. The tapered neck of the horn's bell may be secured by the second bracket surrounding the tapered neck and fixing it in position when the second bracket is secured relative to the first bracket.

Horn systems having a first bracket, a second bracket, a compressor and a horn are described. The horns may have a sound unit and a bell with tubing connecting the compressor and the sound unit. The tapered neck of the horn's bell may be secured by the second bracket surrounding the tapered neck and fixing it in position when the second bracket is secured relative to the first bracket.

The present disclosure describes speech or sound-emulating bottle cap apparatuses and systems and methods for manufacture thereof. It will be understood that a bottle cap prohibits gases from escaping a pressurized bottle. Ordinarily, when the cap is removed from the bottle, the escaping gas will emit a sound, but the sound carries no discernable meaning, cognizable message or recognizable sound (aside from gas simply escaping a pressurized container). Embodiments described herein harness gas escaping from a bottle (when the cap is removed) to generate a discernable meaning, cognizable message or otherwise recognizable sound. The sound-chamber may be wrapped or twisted into a coil or helix shape (in addition or as an alternative to miniaturizing it). A coil or helix shape permits recovery of the original sound quality of the initially modeled sound-chamber, resulting in “a sound-emitting cap-chamber” removably or permanently coupled to a bottle cap or bottle as described herein.

An elastic material vibration test apparatus includes a lower support plate having an upper surface on which an elastic material to be tested is placed, an upper support plate disposed above the lower support plate to be spaced apart from the lower support plate, a pillar connecting the lower support plate and the upper support plate, a pressing rod configured to pass through the upper support plate and ascend and descend in a vertical direction, an air bearing installed on the upper support plate and supporting an outer surface of the pressing rod in a non-contact state, a pressing plate coupled to a lower end of the pressing rod to press an upper surface of the elastic material, and one or more weights coupled to the pressing rod above the air bearing.

A wild game call includes a bugle tube and a damper. The bugle tube includes a first end with a first aperture, a second end with a second aperture, and a wall extending from the first end to the second end. The wall defines an interior volume, and the first aperture and the second aperture provide access to the interior volume such that a flow path is defined through the bugle tube from the first end, through the second end, and out the second end. The bugle tube includes a metal and is configured to generate sound waves by vibrating responsive to air flowing along the flow path. The damper surrounds the outer surface of the wall of the bugle tube between the first end and the second end and may reduce unwanted ringing while improving the sound of the bugle call.

An elastic material vibration test apparatus includes a lower support plate having an upper surface on which an elastic material to be tested is placed, an upper support plate disposed above the lower support plate to be spaced apart from the lower support plate, a pillar connecting the lower support plate and the upper support plate, a pressing rod configured to pass through the upper support plate and ascend and descend in a vertical direction, an air bearing installed on the upper support plate and supporting an outer surface of the pressing rod in a non-contact state, a pressing plate coupled to a lower end of the pressing rod to press an upper surface of the elastic material, and one or more weights coupled to the pressing rod above the air bearing.

A wild game call includes a bugle tube and a damper. The bugle tube includes a first end with a first aperture, a second end with a second aperture, and a wall extending from the first end to the second end. The wall defines an interior volume, and the first aperture and the second aperture provide access to the interior volume such that a flow path is defined through the bugle tube from the first end, through the second end, and out the second end. The bugle tube includes a metal and is configured to generate sound waves by vibrating responsive to air flowing along the flow path. The damper surrounds the outer surface of the wall of the bugle tube between the first end and the second end and may reduce unwanted ringing while improving the sound of the bugle call.