Sound increase apparatus

Details Sound increase apparatus Sound increase apparatus

2006-06-19

2009-11-24

Donels, Jeffrey (Department: 2832)

Acoustics

Sound-modifying means

Housing or enclosure

C181S214000, C181S240000, C123S184570

Reexamination Certificate

active

07621370

ABSTRACT:
A sound increase apparatus includes a partition wall adapted to divide an engine room for defining a first engine room space that is located on a side of a dash panel and a second engine room space in which an engine is installed, and a first pressure fluctuation amplification unit inter-communicating an engine inlet pipe arranged in the second engine room space and the first engine room space. The first pressure fluctuation amplification unit amplifies a pressure fluctuation of a first frequency selected from a plurality of frequencies when pressure of air residing inside the engine inlet pipe fluctuates at the plurality of frequencies.

REFERENCES:
patent: 5214282 (1993-05-01), Yamaguchi et al.
patent: 5298975 (1994-03-01), Khoury et al.
patent: 6644436 (2003-11-01), Hofmann et al.
patent: 6932189 (2005-08-01), Helber et al.
patent: 7188703 (2007-03-01), Hofmann et al.
patent: 7353791 (2008-04-01), Sasaki et al.
patent: 2002/0020173 (2002-02-01), Varney
patent: 2002/0157897 (2002-10-01), Hofmann et al.
patent: 2003/0057015 (2003-03-01), Helber et al.
patent: 2004/0118371 (2004-06-01), Kino et al.
patent: 2005/0121254 (2005-06-01), Hofmann et al.
patent: 2005/0121255 (2005-06-01), Hofmann et al.
patent: 100 42 012 (2001-05-01), None
patent: 102 23 872 (2003-12-01), None
patent: 102 23 875 (2003-12-01), None
patent: 1054249 (2000-11-01), None
patent: 4-102008 (1992-04-01), None
patent: 10-81951 (1998-03-01), None
patent: 2000-65716 (2000-03-01), None
patent: 2000-199737 (2000-07-01), None
patent: 2001-91441 (2001-04-01), None
patent: 2004-218458 (2004-08-01), None

Affiliated with

Also associated with

Rating

Sound increase apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Sound increase apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sound increase apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4116246