Method for manufacturing silencer and apparatus for manufacturing same
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 2, 1996
Issued Date -
N/A
app pub date -
Nov 23, 1994
filing date -
Apr 19, 1993
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A method for easy and reliable manufacture of a silencer constructed with a multi-perforated inner tube and an outer tube, between which a sound-absorbing material such as glass wool, etc. is filled in, without use of a binding agent, etc. . . . In the method for manufacturing the silencer, a long web of mat-shaped sound-absorbing material S is wound on and around time outer peripheral surface of the multi-perforated inner tube 1 in multiple layers and to a predetermined thickness; then, a pair of levelling members 2A, 2B, each having a semi-circular concavity which is substantially eqaul to the inner diameter of the outer tube, are gradually brought into contact with the outer peripheral surface of the sound-absorbing material S, while rotating the inner tube T1 with the sound-absorbing material S having been wound therearound, in its winding direction to thereby level the outer diameter of the sound-absorbing material S to the inner diameter of the outer tube to a substantially equal degree; and the inner tube T1 inserted into the outer tube T2 immovably fixed by the outer tube fixing means such as clamps 3A and 3B, while continuously rotating the inner tube T1.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully