Patent ID: 6202786
Filing Date: 2001-03-20
Classification: B29C,G10K,Y02P

Abstract:
An absorber for absorbing acoustic sound waves, comprisinga basic constructional unit (10) including a supporting body (1) and spacers (2) which protrude from the supporting body, anda covering unit (11) comprising a covering layer (5) connected to the spacers (2) of the supporting body (1) to close chamber-like intermediate cavities (7) between the supporting body (1) and spacers (2), wherein the spacers (2) are integrally preformed with the supporting body (1), the covering layer (5) being deformed, thin and able to vibrate in certain regions at least, said covering unit (11) being substantially rigidly connected both with an edge (4) of the basic constructional unit (10) and with open front ends (3) of spacers (2) characterized in that the basic constructional unit (10) consists of deep-drawn, transfer-moulded or injection-moulded thermoplastic or thermosetting material.