Patent ID: 11887573
Assignee: IGOR EMRI
Field: Other consumer goods (Other fields)
Classification: CPC G | IPC G

Claim 11:
12. The sound insulation element according to claim 7, wherein
within a section in which the envelope curve over the mode peaks is positively skewed, ratios

RNk={Nk/Nk−1}k=i,i−1,i−2, . . . ={Ni/Ni−1,Ni−1/Ni−2, . . . }

are bigger or equal to 1.2 and are smaller or equal to 2.1, such that

1.2≤RNk≤2.1,

wherein a number (Nk) assigned to the equivalent outer diameter (Dk) of an elected mode (k) is bigger than a number (Nk+1) assigned to the equivalent outer diameter (Dk+1) of an adjacent mode (k+1).