Patents by Inventor Stephen M. Lafond

Stephen M. Lafond 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).

  • Wear cap for an earth working roll
    Patent number: 10589278
    Abstract: A wear cap for use on an earth working roil for mining, construction and public works machines such as crushers, surface miners, milling machines and the like includes a working end and a rear mounting end. The rear mounting end including a pair of top and bottom rearwardly extending protrusions, a retainer, and a cavity having side stabilizing surfaces and a top and bottom rail or groove to support the wear cap on a holder mounted to the earth working roll.
    Type: Grant
    Filed: March 18, 2014
    Date of Patent: March 17, 2020
    Assignee: ESCO GROUP LLC
    Inventors: Erik L. Johnson, Stephen M. Lafond, Cameron R. Leedham, Boyan K. Bahnev
  • WEAR CAP FOR AN EARTH WORKING ROLL
    Publication number: 20160290134
    Abstract: A wear cap for use on an earth working roil for mining, construction and public works machines such as crushers, surface miners, milling machines and the like includes a working end and a rear mounting end. The rear mounting end including a pair of top and bottom rearwardly extending protrusions, a retainer, and a cavity having side stabilizing surfaces and a top and bottom rail or groove to support the wear cap on a holder mounted to the earth working roll.
    Type: Application
    Filed: March 18, 2014
    Publication date: October 6, 2016
    Inventors: Erik L. Johnson, Stephen M. Lafond, Cameron R. Leedham, Boyan K. Bahnev
  • Replaceable wear parts for an earth-working roll
    Patent number: 9242247
    Abstract: A wear assembly for use on a driven roll for earth-working machines and the like operations that eases replacement of the wear parts, lengthens the life of the bases, reduces the amount of throw-away material to be discarded, and has a lower manufacturing cost. The wear part overlies and protects the base to prolong the useable life of the base, lessen machine downtime, and reduce throw-away material. The use of an overlying adapter eases and speeds replacement of the wear parts to further limit downtime of the machine. The wear part is preferably a two-piece component with no machined parts for a lower manufacturing cost and easy replacement.
    Type: Grant
    Filed: October 9, 2013
    Date of Patent: January 26, 2016
    Assignee: ESCO Corporation
    Inventors: Stephen M. Lafond, Cameron R. Leedham, Christopher M. Carpenter, Dallas Chapple
  • Replaceable Wear Parts For An Earth-Working Roll
    Publication number: 20140034765
    Abstract: A wear assembly for use on a driven roll for earth-working machines and the like operations that eases replacement of the wear parts, lengthens the life of the bases, reduces the amount of throw-away material to be discarded, and has a lower manufacturing cost. The wear part overlies and protects the base to prolong the useable life of the base, lessen machine downtime, and reduce throw-away material. The use of an overlying adapter eases and speeds replacement of the wear parts to further limit downtime of the machine. The wear part is preferably a two-piece component with no machined parts for a lower manufacturing cost and easy replacement.
    Type: Application
    Filed: October 9, 2013
    Publication date: February 6, 2014
    Applicant: ESCO Corporation
    Inventors: Stephen M. Lafond, Cameron R. Leedham, Christopher M. Carpenter, Dallas Chapple