Patents by Inventor Darwin Crossa

Darwin Crossa has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 7163048
    Abstract: An automatic monitoring system for thermal energy storage (TES) plants wherein a pilot ice tank (11) uses Archimedes' principle to determine the ice inventory level by measuring the resultant force (28) of the algebraic addition of the weight of the ice and the reaction of the water pushing the ice up with a force equal to the weight on the water displaced by the volume of the ice. The resultant force (28) applied on a pivoting arm (37) is transferred to a liquid filled bellow (19) and is transformed into hydraulic pressure. The instantaneous hydraulic pressure is transferred to a pressure transducer (21) which converts the hydraulic pressure into an electric current. The electric current is then sent as an electronic analog input to the central control panel (30) of the TES for analysis or display.
    Type: Grant
    Filed: April 21, 2004
    Date of Patent: January 16, 2007
    Inventors: Francisco J. Colasso, Darwin Crossa, Hugo Madrigal
  • Publication number: 20050236137
    Abstract: An automatic monitoring system for thermal energy storage (TES) plants wherein a pilot ice tank (11) uses Archimedes' principle to determine the ice inventory level by measuring the resultant force (28) of the algebraic addition of the weight of the ice and the reaction of the water pushing the ice up with a force equal to the weight on the water displaced by the volume of the ice. The resultant force (28) applied on a pivoting arm (37) is transferred to a liquid filled bellow (19) and is transformed into hydraulic pressure. The instantaneous hydraulic pressure is transferred to a pressure transducer (21) which converts the hydraulic pressure into an electric current. The electric current is then sent as an electronic analog input to the central control panel (30) of the TES for analysis or display.
    Type: Application
    Filed: April 21, 2004
    Publication date: October 27, 2005
    Inventors: Francisco Colasso, Darwin Crossa, Hugo Madrigal