PITCH CHANGING APPARATUS ATTACHED

Brand Owner (click to sort) Address Description
D-TUNA EVH BRANDS 10960 Wilshire Blvd, 5th Floor Los Angeles CA 90024 pitch changing apparatus attached to tensioning members on a stringed instrument;
THE WILLIE E.L.V.H., INC. c/o Nigro Carlin 13100 Santa Monica Blvd Suite 1100 Los Angeles CA 90067 pitch changing apparatus attached to tensioning members on a stringed instrument;
 

Where the owner name is not linked, that owner no longer owns the brand

    
Technical Examples
  1. Pitch control of a variable pitch fan is obtained using pulsed pressure. Pitch is varied incrementally either towards or away from full pitch by pulsed application of fluid to a piston used to drive the blades of the fan into or away from full pitch. Reverse pitch is used to clear debris from the fan. Valves control flow of fluid to the piston. The valve operation is controlled by a controller.