Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Portable acoustic shell










Image Number 3 for United States Patent #5651405.

An improved collapsible stage panel assembly having a base, a vertical panel rigidly attached to the base, an intermediate panel pivotally connected to the top of the rigid vertical panel, a canopy panel pivotally connected to the intermediate panel and a kicker panel pivotally connected to the bottom of the rigid vertical panel. The stage panel assembly has a mechanical assisting device between the rigid vertical panel and the intermediate panel to provide a counter balancing force against the combined weights of the intermediate and canopy panels. A second mechanical assisting device extends between the intermediate panel and the canopy panel to provide a counter balancing force against the weight of the canopy panel. An automatic locking device provides for the locking of the intermediate panel in its extended position relative to the rigid vertical panel when the intermediate panel is placed in its extended position. The improved panel assembly allows for easier conversion between the extended configuration of the panel assembly suitable for combination with other such assemblies to form an acoustic reflecting shell and the folded storage configuration where the panels can be nested together for storage in a minimum of space.








 
 
  Recently Added Patents
Image processing apparatus, image forming system, and computer-readable storage medium
Catecholic butanes and use thereof for cancer therapy
Method to prevent hyper frame number de-synchronization in a wireless communication system
Keypad assembly for electronic devices
Buffer pool extension for database server
Systems and methods for detailed error reporting in data storage systems
Laser processing method and apparatus
  Randomly Featured Patents
Multi-functional cellular surface for underwater vehicles
Olefin polymerization process
Treating tank, and substrate treating apparatus having the treating tank
Percussion instrument and keyboard-type percussion instrument
Direct and selective production of ethanol from acetic acid utilizing a platinum/ tin catalyst
Key with removable cover
Process for the manufacture of environmentally friendly papers and compositions therefor
Infrared remote control system for activating and deactivating one or more devices in a single enclosed space
Archery bows, and archery bow cam and weight systems
Content-on-demand interactive video method and apparatus