초록 ▼

The present disclosure relates to a generally rectangular frame including two spaced-apart and substantially parallel end members interconnected by two spaced part and substantially parallel length members. The length members defined inwardly facing channels. Two spaced-apart perforated members are

The present disclosure relates to a generally rectangular frame including two spaced-apart and substantially parallel end members interconnected by two spaced part and substantially parallel length members. The length members defined inwardly facing channels. Two spaced-apart perforated members are secured within the inwardly facing channels between the two spaced-apart length members. Sound absorbing material is compressed between the perforated members.

대표청구항 ▼

[ We claim:] [1.]1. A silencer comprising:a generally rectangular frame including two spaced-apart and substantially parallel end members interconnected by two spaced-apart and substantially parallel length members, the length members defining inwardly facing channels;two spaced-apart perforated mem

[ We claim:] [1.]1. A silencer comprising:a generally rectangular frame including two spaced-apart and substantially parallel end members interconnected by two spaced-apart and substantially parallel length members, the length members defining inwardly facing channels;two spaced-apart perforated members secured within the inwardly facing channels between the two-spaced-apart length members, the perforated members being longer than the length members and including end portions that overlap the end members, the end portions being fixedly connected to outer surfaces of the end members such that the end members are fixed between the perforated members; andsound absorbing material positioned between the perforated members.