| 摘要 |
<p>An element (1 ) for ventilating a housing containing an electrical, mechanical, electromechanical or similar member comprises a rigid body (2) having an outer cylindrical wall (3), closed at a first end (4) by a closure part (5), said cylindrical wall (3) being open at a second end (7) coupled to the housing, said body (2) containing an internal member (15) of at least partly yieldable material having a first end (14) close to the closure part (5) of the rigid body (2) and carrying a filtering membrane (25), and an open second end (17) facing said housing. From said closure part (5) an internal cylindrical portion (10) projects containing said member (15) and couples to this latter by interference so as to retain it within the body (2).</p> |
