Patents by Inventor John M. Darst

John M. Darst 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: 11921096
    Abstract: Embodiments herein relate to breath analysis system. In an embodiment, a gas measurement device is included having a housing defining an interior volume. The housing can include a fluid ingress port, a fluid egress port, a bottom wall, and a circuit board disposed within the interior volume. The circuit board can include a first side and a second side, where the first side of the circuit board faces inward toward the interior volume. The circuit board can include a plurality of gas sensors disposed on the first side of the circuit board and a plurality of conductive pads disposed on the second side of the circuit board, wherein a plurality of electrical contacts contact the conductive pads when the circuit board is seated within the housing. Other embodiments are also included herein.
    Type: Grant
    Filed: September 4, 2020
    Date of Patent: March 5, 2024
    Assignee: REGENTS OF THE UNIVERSITY OF MINNESOTA
    Inventors: Gregory J. Sherwood, Justin Theodore Nelson, Raia Colette Finc, Michael J. Lyden, John M. Darst, Michael Mathias Freking
  • Publication number: 20210072208
    Abstract: Embodiments herein relate to breath analysis system. In an embodiment, a gas measurement device is included having a housing defining an interior volume. The housing can include a fluid ingress port, a fluid egress port, a bottom wall, and a circuit board disposed within the interior volume. The circuit board can include a first side and a second side, where the first side of the circuit board faces inward toward the interior volume. The circuit board can include a plurality of gas sensors disposed on the first side of the circuit board and a plurality of conductive pads disposed on the second side of the circuit board, wherein a plurality of electrical contacts contact the conductive pads when the circuit board is seated within the housing. Other embodiments are also included herein.
    Type: Application
    Filed: September 4, 2020
    Publication date: March 11, 2021
    Inventors: Gregory J. Sherwood, Justin Theodore Nelson, Raia Colette Finc, Michael J. Lyden, John M. Darst, Michael Mathias Freking
  • Patent number: 6193090
    Abstract: Disclosed is a container having top, bottom, and side walls that comprises first and second substantially identical halves, each of which has a major surface that has a polygonal shape defined by at least six sides and at least one substantially vertical side wall, substantially orthogonal to the major surface, that forms a portion of the side walls of the container when the halves are assembled, an at least double wall construction, the two substantially identical halves matingly engage when the halves are assembled to form the container, and means integral to each half for securing the two halves together. In another aspect, the container of the invention comprises a major surface having a curved periphery and is otherwise as summarized above.
    Type: Grant
    Filed: April 6, 1999
    Date of Patent: February 27, 2001
    Assignee: 3M Innovative Properties Company
    Inventors: Paul A. Connors, Gerald J. Niles, John M. Darst
  • Patent number: 6053346
    Abstract: A storage container for storing and shipping items is foldable between a flat unformed condition and a second folded formed condition. The container includes a base section, and first and second end sections hinged to respective first and second ends of the base section. First and second cover sections are hinged to respective second ends of the end sections. The container includes a structure to secure differently sized and shaped articles in the same location of the inner surface of the base section. The securing structure includes slots, retention columns, ridges, troughs having various walls forming a trough for securing these articles using a friction fit. The container also includes a device for indicating whether the container has been opened.
    Type: Grant
    Filed: June 8, 1998
    Date of Patent: April 25, 2000
    Assignee: 3M Innovative Properties Company
    Inventors: Gerald J. Niles, Paul A. Connors, John M. Darst
  • Patent number: 5640816
    Abstract: A lightweight, freestanding modular changing room system which can be assembled using few or no tools. The modular freestanding changing room system may consist of as few as four unique components--interchangeable wall panels, door panel assemblies, and two types of panel support columns. Additional components may be added to create more elaborate changing room configurations.
    Type: Grant
    Filed: March 28, 1995
    Date of Patent: June 24, 1997
    Assignee: Four D Incorporated
    Inventors: Mary J. Reiland, Kenneth H. Reiland, David J. Lehse, John M. Darst
  • Patent number: D439050
    Type: Grant
    Filed: April 6, 1999
    Date of Patent: March 20, 2001
    Assignee: 3M Innovative Properties Company
    Inventors: Paul A. Connors, Gerald J. Niles, John M. Darst