Patents by Inventor John M. Sprague

John M. Sprague 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).

  • Wireless hoist system
    Patent number: 11912545
    Abstract: A wireless hoist system including a first hoist device having a first motor and a first wireless transceiver and a second hoist device having a second motor and a second wireless transceiver. The wireless hoist system includes a controller in wireless communication with the first wireless transceiver and the second wireless. The controller is configured to receive a user input and determine a first operation parameter and a second operation parameter based on the user input. The controller is also configured to provide, wirelessly, a first control signal indicative of the first operation parameter to the first hoist device and provide, wirelessly, a second control signal indicative of the second operation parameter to the second hoist device. The first hoist device operates based on the first control signal and the second hoist device operates based on the second control signal.
    Type: Grant
    Filed: June 26, 2020
    Date of Patent: February 27, 2024
    Assignee: Milwaukee Electric Tool Corporation
    Inventors: Matthew Post, Gareth Mueckl, Matthew N. Thurin, Joshua D. Widder, Timothy J. Bartlett, Patrick D. Gallagher, Jarrod P. Kotes, Karly M. Schober, Kenneth W. Wolf, Terry L. Timmons, Mallory L. Marksteiner, Jonathan L. Lambert, Ryan A. Spiering, Jeremy R. Ebner, Benjamin A. Smith, James Wekwert, Brandon L. Yahr, Troy C. Thorson, Connor P. Sprague, John E. Koller, Evan M. Glanzer, John S. Scott, William F. Chapman, III, Timothy R. Obermann
  • Projectile pallet truck
    Patent number: 4239249
    Abstract: A projectile pallet hand truck is provided for one man mechanical operation in moving heavy loads. Curved rocker arms on wheels facilitate pallet positioning, and an extensible lever is used in transferring the load center of gravity over tricycle wheels for movement. Extra handles are provided for easier operator movement when the truck is in loaded position.
    Type: Grant
    Filed: April 27, 1979
    Date of Patent: December 16, 1980
    Assignee: United States of America
    Inventor: John M. Sprague