Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Communications
Class Information
Number: 181/143
Name: Acoustics > Moving sound producer or deflector
Description: Subject matter for continuously moving a sound source (e.g., loudspeaker) or for continuously moving a sound reflector located in the sound path.










Patents under this class:

Patent Number Title Of Patent Date Issued
8498433 Sonic motion apparatus Jul. 30, 2013
6520280 System and method for workspace sound regulation Feb. 18, 2003
5146434 Sound focusing device Sep. 8, 1992
4847590 Outdoor warning siren Jul. 11, 1989
4718372 Vehicle warning system Jan. 12, 1988
4689609 Electronic horn with spiral deflecting walls coupled to a truncated cone structure Aug. 25, 1987
4635039 Low drag warning system for emergency vehicles Jan. 6, 1987
4554531 Omnidirectional siren Nov. 19, 1985
4432299 Impulse noise generator Feb. 21, 1984
4334211 Speaker grille for streamlined light bar mounted on vehicle roof Jun. 8, 1982
4253368 Universal pulsato unit Mar. 3, 1981
4035582 Tremolo effect producing system Jul. 12, 1977
3961684 Omni-directional sound system Jun. 8, 1976











 
 
  Recently Added Patents
Guitar strap attachment means
Enhanced telephony services
Dynamic bar oriented user interface
Method and apparatus for eliminating a motor vehicle tip-over risk
Dental plier
Economic filtering system for delivery of permission based, targeted, incentivized advertising
Surface-emitting laser light source using two-dimensional photonic crystal
  Randomly Featured Patents
Stabilized equipment support and method of balancing same
Water pump
Air purifier
Catalyst composition and use in preparing polyketones
Sequentially annealed oxidation of silicon to fill trenches with silicon dioxide
Wheel and method for correcting rotational imbalance of tires
System and method for dynamically determining vehicle loading and vertical loading distance for use in a vehicle dynamic control system
Integrated circuit protected against short circuits and operating errors following the passage on an ionizing radiation
Method for design and construction of efficient, fundamental transverse mode selected, diode pumped, solid state lasers
Planet carrier assembly