Patents by Inventor Scott A. Larson

Scott A. Larson 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).

  • NEGATIVE PRESSURE REUSABLE RESPIRATOR SYSTEM FOR SAFETY EVENT DETECTION
    Publication number: 20220054869
    Abstract: A system includes a negative pressure reusable respirator configured to be worn by a worker and to cover at least a mouth and a nose of the worker, a sensor configured to generate sensor data indicative of a characteristic of air within a work environment, and at least one computing device. The negative pressure reusable respirator includes at least one contaminant capture device configured to remove contaminants from air as the air is drawn through the contaminant capture device when the worker inhales. The at least one contaminant capture device is configured to be removable from the negative pressure reusable respirator. The at least one computing device configured to determine whether the at least one contaminant capture device is due for replacement, and perform one or more actions in response to determining the at least one contaminant capture device is due for replacement.
    Type: Application
    Filed: December 19, 2019
    Publication date: February 24, 2022
    Inventors: David R. Stein, Caroline M. Ylitalo, Craig E. Colton, Steven T. Awiszus, Shane A. Hainey, Richard C. Webb, Scott A. Larson, Andrew W. Long, Daniel B. Taylor
  • Respiratory protection device
    Patent number: 8074648
    Abstract: A respiratory device includes a face seal and a unitary body that forms an interface with the face seal and includes a lens and a chassis. The chassis includes at least one port for fluidic connection.
    Type: Grant
    Filed: July 14, 2009
    Date of Patent: December 13, 2011
    Assignee: 3M Innovative Properties Company
    Inventors: James R. Betz, Brandon H. Harmon, Andrew S. Viner, Scott A. Larson, David M. Castiglione
  • RESPIRATORY PROTECTION DEVICE
    Publication number: 20090272378
    Abstract: A respiratory device includes a face seal and a unitary body that forms an interface with the face seal and includes a lens and a chassis. The chassis includes at least one port for fluidic connection.
    Type: Application
    Filed: July 14, 2009
    Publication date: November 5, 2009
    Inventors: James R. Betz, Brandon H. Harmon, Andrew S. Viner, Scott A. Larson, David M. Castiglione
  • Respiratory protection device
    Patent number: 7594510
    Abstract: A respiratory device includes a face seal and a unitary body that forms an interface with the face seal and includes a lens and a chassis. The chassis includes at least one port for fluidic connection.
    Type: Grant
    Filed: March 31, 2006
    Date of Patent: September 29, 2009
    Assignee: 3M Innovative Properties Company
    Inventors: James R. Betz, Brandon H. Harmon, Andrew S. Viner, Scott A. Larson, David M. Castiglione
  • Shift lever activated parking brake
    Patent number: 4875563
    Abstract: A system for activating and de-activating a packing brake using only motion of the transmission gear shift lever. A mechanical linkage from the gear shift lever controlling the position of the cam. The cam in turn controls the position of a valve which can connect the spring-activated hydraulically deactivated parking brake to a source of pressurized fluid, or drain the brake. The cam is precisely positioned relative to the valve by a cam support structure, and the entire valve and cam mechanism preferably is mounted on the steering column near the gear shift mechanism. The preferred method for installing the apparatus in proper adjustment also is disclosed.
    Type: Grant
    Filed: January 19, 1988
    Date of Patent: October 24, 1989
    Assignee: Deere & Company
    Inventors: Scott A. Larson, Duane R. Johnson