Laminated aluminum polypropylene (LAP) multi-layers loudspeaker diaphragm
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
Jan 30, 2003
app pub date -
Jul 25, 2001
filing date -
Jul 25, 2001
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A laminated aluminum polypropylene (refers to LAP hereinafter) multi-layers loudspeaker diaphragm comprises different material layers to exploit the appearance feature and mechanical properties from different material. LAP diaphragm contains (1) the front layer which is made of formed aluminum foil, (2) the second layer which is injected polypropylene and (3) a bonding adhesive layer lying between the aluminum and polypropylene layers to bond two different material layers tightly and also enhance the property of internal loss. The loudspeaker with this multi layers vibrating diaphragm posses the advantages of the metal glaring appearance and mechanical properties good for quality sound reproduction and environmental resistance.
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