Hearing protectors

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 4572323
SERIAL NO

06591455

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A hearing protecting device comprises a shell defining a hollow enclosure, which may be provided with sound absorbing material, with an open mouth, which is, in use, placed over the ear. A resiliently deformable seal of sound absorbing material is provided along the periphery of the open mouth to seal against the shell and the wearer, and is releasably retained in place by releasable retaining means which cooperate with an inner portion of the sealing means and with an inner edge portion of the mouth of the enclosure. The retaining means may comprise an annular member made integral with the sealing means and which extends round the inner edge of the mouth to overlie and engage an inner surface of the shell, or a member separate from the sealing means which retains an inner portion of the sealing means relative to the inner edge of the mouth of the shell.

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First Claim

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Family

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Patent Owner(s)

  • RACAL SAFETY LIMITED

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Randall, Mervyn D G Surrey, GB2 1 188

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