Patents by Inventor Gerhard Walthert

Gerhard Walthert 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).

  • Method of continuously measuring the shear viscosity of a product paste
    Patent number: 10520409
    Abstract: The present invention relates to a method of continuously determining the shear viscosity (?) of a product paste to be delivered to a spray nozzle for spray-drying applications wherein the continuous determination of the shear viscosity (?) of the product paste is carried out in a bypass to the product paste stream to the spray nozzle.
    Type: Grant
    Filed: December 22, 2015
    Date of Patent: December 31, 2019
    Assignee: Societe des Produits Nestle S.A.
    Inventors: Peter Erdmann, Peter Fankhauser, Nina Laubacher, Martin Nydegger, Dale Richard Sanders, Christian Schmied, Michael Stranzinger, Gerhard Walthert
  • Spray nozzle apparatus for spray-drying applications
    Patent number: 10391505
    Abstract: The invention provides for an spray nozzle apparatus (1) for a spray drying apparatus comprising a nozzle provided with at least one nozzle orifice (26) for outputting spray droplets of a product to be dried and a least one inlet orifice (24) for transferring said product into a nozzle chamber (22), including an apparatus for adjusting the size of outputted droplets inline during the spray drying process.
    Type: Grant
    Filed: December 23, 2015
    Date of Patent: August 27, 2019
    Assignee: Societe des Produits Nestle S.A.
    Inventors: Peter Erdmann, Peter Fankhauser, Martin Nydegger, Dale Richard Sanders, Christian Schmied, Michael Stranzinger, Gerhard Walthert
  • Method of controlling the spray droplet size of a spray nozzle apparatus for spray-drying applications, spray drying apparatus and nozzle therefore
    Patent number: 10265717
    Abstract: A method of controlling the spray droplet size of a spray nozzle apparatus, in particular for the manufacturing of food powders, delivered to the spray nozzle comprises the following steps: a) providing a paste of a product to be sprayed by a spray nozzle; b) continuously determining the shear viscosity (?) of the product paste delivered to the spray nozzle; c) determining the mass flow rate (Qrn) of the product paste delivered to the spray nozzle; d) determining the static pressure (P) of the product paste delivered to the spray nozzle; e) determining the density (p) of the product paste delivered to the spray nozzle; f) delivering the data obtained in steps b) to e) to a control device comprising a computer and a memory; g) calculating control data for adjusting the spray nozzle on the basis of the data obtained in steps b) to e) and on nozzle geometry parameters stored in the memory; h) sending the control data as control signals to a control means of the spray nozzle and adjusting the spray nozzle accordi
    Type: Grant
    Filed: December 22, 2015
    Date of Patent: April 23, 2019
    Assignee: Nestec S.A.
    Inventors: Peter Erdmann, Peter Frankhauser, Martin Nydegger, Dale Richard Sanders, Christian Schmied, Michael Stranzinger, Gerhard Walthert
  • SPRAY NOZZLE APPARATUS FOR SPRAY-DRYING APPLICATIONS
    Publication number: 20180036749
    Abstract: The invention provides for an spray nozzle apparatus (1) for a spray drying apparatus comprising a nozzle provided with at least one nozzle orifice (26) for outputting spray droplets of a product to be dried and a least one inlet orifice (24) for transferring said product into a nozzle chamber (22), including an apparatus for adjusting the size of outputted droplets inline during the spray drying process.
    Type: Application
    Filed: December 23, 2015
    Publication date: February 8, 2018
    Inventors: Peter Erdmann, Peter Frankhauser, Martin Nydegger, Dale Richard Sanders, Michael Stranzinger, Gerhard Walthert
  • METHOD OF CONTINUOUSLY MEASURING THE SHEAR VISCOSITY OF A PRODUCT PASTE
    Publication number: 20180003606
    Abstract: The present invention relates to a method of continuously determining the shear viscosity (?) of a product paste to be delivered to a spray nozzle for spray-drying applications wherein the continuous determination of the shear viscosity (?) of the product paste is carried out in a bypass to the product paste stream to the spray nozzle.
    Type: Application
    Filed: December 22, 2015
    Publication date: January 4, 2018
    Inventors: Peter Erdmann, Peter Fankhauser, Nina Laubacher, Martin Nydegger, Dale Richard Sanders, Christian Schmied, Michael Stranzinger, Gerhard Walthert