Patents by Inventor Patrick W. Schottler

Patrick W. Schottler 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).

  • Diaphragm-operated fluid flow control valve providing a plurality of flow levels
    Patent number: 6923204
    Abstract: A fluid flow control valve uses a servo valve to control the pressure in a main diaphragm chamber defined by a main diaphragm. The main diaphragm carries a main valve element that assumes either a low flow or a high flow position relative to a valve seat depending on which of two states the servo valve is in. When the servo valve is in the one of the two states creating the low flow position of the main valve element, the main diaphragm chamber pressure is regulated by a pressure divider comprising two flow restrictors in series connection between the inlet and outlet chambers of the valve. When in the other of the two states, the servo valve disables the pressure divider and allows the main diaphragm chamber pressure to reach the outlet pressure. The disclosure shows two versions of the invention. One version of the valve enters its low flow state when the servo valve is closed, and the other when its servo valve is open.
    Type: Grant
    Filed: April 10, 2003
    Date of Patent: August 2, 2005
    Assignee: Honeywell International Inc.
    Inventors: James M. Dalton, Donald J. Kasprzyk, Sybrandus B. V. Munsterhuis, Patrick W. Schottler
  • Diaphragm-operated fluid flow control valve providing a plurality of flow levels
    Publication number: 20040200530
    Abstract: A fluid flow control valve uses a servo valve to control the pressure in a main diaphragm chamber defined by a main diaphragm. The main diaphragm carries a main valve element that assumes either a low flow or a high flow position relative to a valve seat depending on which of two states the servo valve is in. When the servo valve is in the one of the two states creating the low flow position of the main valve element, the main diaphragm chamber pressure is regulated by a pressure divider comprising two flow restrictors in series connection between the inlet and outlet chambers of the valve. When in the other of the two states, the servo valve disables the pressure divider and allows the main diaphragm chamber pressure to reach the outlet pressure. The disclosure shows two versions of the invention. One version of the valve enters its low flow state when the servo valve is closed, and the other when its servo valve is open.
    Type: Application
    Filed: April 10, 2003
    Publication date: October 14, 2004
    Applicant: Honeywell International Inc.
    Inventors: James M. Dalton, Donald J. Kasprzyk, Sybrandus B.V. Munsterhuis, Patrick W. Schottler