Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Porzilli; Louis B.
Address:
Sparta, NJ
No. of patents:
2
Patents:












Patent Number Title Of Patent Date Issued
6563033 Stringed musical instrument with apparatus enhancing low frequency sounds May 13, 2003
A stringed instrument such as a guitar with a thinner than traditional body is provided enhanced decibels measured by sound pressure level (DBSPL) response employing a combination of one or more of each of a passive radiator, tuned isolated resonating wave guide or guides in the body
5659155 Acoustical transducer enclosure August 19, 1997
The purpose of the invention is to direct, in a coherent fashion, audible frequencies, particularly, low frequencies and especially those below 90 cycles. The advantage to directing low frequencies to acute projection patterns previously thought impossible is to reduce low frequency feed










 
 
  Recently Added Patents
Fringe field switching mode liquid crystal display panel
Simultaneous enhancement of transmission loss and absorption coefficient using activated cavities
Apparatus with a local timing circuit that generates a multi-phase timing signal for a digital signal processing circuit
Electrifying roller
Metal halide lamps with fast run-up and methods of operating the same
Article based on a composition containing a crosslinked blend of elastomers
Asynchronous task execution
  Randomly Featured Patents
Method, device and system for managing lines
Temporarily crosslinked polyester polymers
Fluid ejection device with feedback circuit
Image forming apparatus and method for detecting position deviation
Methods and apparatus for facilitating transmission of cells having multiple priorities in a cell relay network
Amusement toy for infants
Automated operator assistance with menu options
Evolution of whole cells and organisms by recursive sequence recombination
Storage and transportation case for shelf system
Transition metal compound and catalyst containing the same for polymerization of olefins