Surgery – Body protecting or restraining devices for patients or infants – Head or face protector
Patent
1998-04-29
2000-11-21
Brown, Michael A.
Surgery
Body protecting or restraining devices for patients or infants
Head or face protector
128867, A61F 1100
Patent
active
061488216
ABSTRACT:
The present invention presents a selective nonlinear attenuating earplug. The earplug is tunable by the wearer and permits the wearer to select the performance of the earplug. The earplug of the present invention can function either in a selective attenuation mode or a maximum attenuation mode. The selective capability of the earplug permits a wearer to select the degree of desired sound attenuation depending upon the particular environment surrounding the wearer. In the selective attenuation mode, sound attenuation is low for a specific range of intensities and increases for sounds with intensity above those in the specified range. Selective attenuation is especially effective for the loudest noises. The advantage of a selective attenuation mode is especially realized when the wearer wishes to receive an intelligible speech transmission while being situated in a noisy environment while still protecting the wearer from dangerous noises. The present invention is particularly useful when the noisy environment is caused by high continuous or pulsed noises, such as gunshots or those noises generated in an industrial setting. In the maximum attenuation mode, the hearing protector stops all sounds throughout the frequency range, regardless of their intensity.
REFERENCES:
patent: 3800791 (1974-04-01), Visor
patent: 4540063 (1985-09-01), Ochi
patent: 4867149 (1989-09-01), Falco
patent: 5113967 (1992-05-01), Killion
Brown Michael A.
Cabot Safety Intermediate Corporation
LandOfFree
Selective nonlinear attenuating earplug does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Selective nonlinear attenuating earplug, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Selective nonlinear attenuating earplug will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1248493