Patents by Inventor Calvin Curtis

Calvin Curtis 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: 9175397
    Abstract: A method of synthesizing multilayer heterostructures including an inorganic oxide layer residing on a solid substrate is described. Exemplary embodiments include producing an inorganic oxide layer on a solid substrate by a liquid coating process under relatively mild conditions. The relatively mild conditions include temperatures below 225° C. and pressures above 9.4 mb. In an exemplary embodiment, a solution of diethyl aluminum ethoxide in anhydrous diglyme is applied to a flexible solid substrate by slot-die coating at ambient atmospheric pressure, and the diglyme removed by evaporation. An AlOx layer is formed by subjecting material remaining on the solid substrate to a relatively mild oven temperature of approximately 150° C. The resulting AlOx layer exhibits relatively high light transmittance and relatively low vapor transmission rates for water. An exemplary embodiment of a flexible solid substrate is polyethylene napthalate (PEN). The PEN is not substantially adversely affected by exposure to 150° C.
    Type: Grant
    Filed: March 15, 2011
    Date of Patent: November 3, 2015
    Assignee: Alliance for Sustainable Energy, LLC
    Inventors: Scott R. Hammond, Matthew Reese, Benjamin Rupert, Alexander Miedaner, Calvin Curtis, Dana Olson, David S. Ginley
  • Publication number: 20110223433
    Abstract: A method of synthesizing multilayer heterostructures including an inorganic oxide layer residing on a solid substrate is described. Exemplary embodiments include producing an inorganic oxide layer on a solid substrate by a liquid coating process under relatively mild conditions. The relatively mild conditions include temperatures below 225° C. and pressures above 9.4 mb. In an exemplary embodiment, a solution of diethyl aluminum ethoxide in anhydrous diglyme is applied to a flexible solid substrate by slot-die coating at ambient atmospheric pressure, and the diglyme removed by evaporation. An AlOx layer is formed by subjecting material remaining on the solid substrate to a relatively mild oven temperature of approximately 150° C. The resulting AlOx layer exhibits relatively high light transmittance and relatively low vapor transmission rates for water. An exemplary embodiment of a flexible solid substrate is polyethylene napthalate (PEN). The PEN is not substantially adversely affected by exposure to 150° C.
    Type: Application
    Filed: March 15, 2011
    Publication date: September 15, 2011
    Applicant: Alliance for Sustainable Energy, LLC
    Inventors: Scott R. Hammond, Matthew Reese, Benjamin Rupert, Alexander Miedaner, Calvin Curtis, Dana Olson, David S. Ginley
  • Publication number: 20100011791
    Abstract: A heat transfer system capable of being coupled to at least one temperature controlled zone, the elements of the system comprising: (i) at least one liquid refrigerant line; (ii) at least one expansion valve selected for R22 or R422D; (iii) at least one evaporator (iv) at least one compressor; (v) at least one condenser; (vi) at least one vapor refrigerant line; and wherein all of the elements have an inlet side and an outlet side and elements (i) through (vi) are in fluid communication together and contains R422D; and the system further comprising a sensing element communicatively coupled to the outlet side of at least one evaporator and at least one expansion valve and at least one sensing element contains a fluid selected to work when R22 is in the condenser-to-evaporator circuit, or R422D. Further disclosed are methods for retrofitting R22 containing heat transfer systems, including refrigerators and air conditioners. Also disclosed are refrigerators and air conditioners containing only R422D.
    Type: Application
    Filed: December 19, 2007
    Publication date: January 21, 2010
    Inventors: Roger Nicholas Strickland, Calvin Curtis Lawson, Neil Andre Roberts, James William Dunlap, Donald Bernard Bivens, Kevin Patrick O'Shea
  • Publication number: 20050066878
    Abstract: The present invention provides a method for producing Group III nitride materials by converting a Group III azide of the formula: (R1R2N)2M1N3 under conditions sufficient to produce a Group III nitride material of the formula: M1N wherein each of R1 and R2 is independently a hydrocarbyl; and M1 is a Group III metal.
    Type: Application
    Filed: September 25, 2003
    Publication date: March 31, 2005
    Inventors: Douglas Arent, Calvin Curtis, Carl Schwerdtfeger