41results about How to "Avoid hearing damage" patented technology

A modular silencer includes an outer tube and a plurality of chamber separators suspended through a tensile force within a bore of the outer tube and defining chambers between each pair of chamber separators in the silencer. An outer edge of the chamber separators is spaced apart from an inner surface of the tube to allow gas equalization between the chambers. A plurality of tube portions separate the chamber separators from each other and from the proximal and distal ends of the silencer assembly. The tube portions define a continuous center tube suspended in tension within the outer tube and through which the projectile travels. The tube portions have can have angled openings through which gas discharge exits into the chambers. Rotatable sleeves can be disposed over the tube portions to further disrupt gas flow and dissipate heat and sound. A carbon fiber sleeve can be disposed over the outer tube to inhibit burn injuries from contacting the silencer.

A digital audio player device can be attached, adhered, or otherwise embedded into or upon a removable oral appliance or other oral device to form an intraoral MP3 player. In another embodiment, the device provides an electronic and transducer device that can be attached, adhered, or otherwise embedded into or upon a removable oral appliance or other oral device to form a DAP. Such an oral appliance may be a custom-made device fabricated from a thermal forming process utilizing a replicate model of a dental structure obtained by conventional dental impression methods. The electronic and transducer assembly may receive incoming sounds either directly or through a receiver to process and amplify the signals and transmit the processed sounds via a vibrating transducer element coupled to a tooth or other bone structure, such as the maxillary, mandibular, or palatine bone structure.

The invention discloses a tubular corrugated paper sleeve forming machine provided with a video monitoring camera. The tubular corrugated paper sleeve forming machine comprises a machine frame, a punching mechanism, a cutting mechanism, a feeding mechanism, an edge gluing mechanism, a rounding and edge drying mechanism and the video monitoring camera. The feeding mechanism comprises a feeding rail plate and a feeding rail plate sliding driving air cylinder. The edge gluing mechanism is arranged on a gluing base plate above the feeding rail plate. The rounding and edge drying mechanism comprises a support plate, a rounding core mold, a rounding positioning pressing plate, an edge clamping top plate and two rounding force applying assemblies arranged on the left side and the right side of a rounding mold. A feeding hole is formed in the support plate and connected with the discharging end of the feeding mechanism. A hot air cavity is formed in the edge clamping top plate. A plurality of hot air holes communicated with the hot air cavity are formed in a top plate body of the edge clamping top plate. The support plate is further provided with an air heater connected with a pipeline of the hot air cavity. The tubular corrugated paper sleeve forming machine has the advantages of being reasonable in structural design, high in machining efficiency, and good in product forming consistency.

The invention relates to a terminal volume adjustment processing method and a terminal. The method comprises the steps of receiving an audio playing request, wherein the audio playing request is used for making a request for playing a target audio; obtaining first volume and second volume according to the audio playing request, wherein the first volume is the current set volume of the terminal, and the second volume is the corresponding volume when the terminal plays the audio; and if the first volume is greater than the second volume, playing the target audio through utilization of the second volume, and linearly adjusting the playing volume of the target audio from the second volume to the first volume according to preset adjustment speed. According to the method, the playing volume of the target audio is transited smoothly, the discomfort or hearing damage resulting from emergent relatively high volume is prevented from being provided for a user, and the use experience of the user for the terminal is greatly improved.