Patents by Inventor David William Gift

David William Gift 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).

  • Dust suppression arrangement for heavy excavation equipment
    Patent number: 9587373
    Abstract: An excavation apparatus is disclosed. The excavation apparatus includes a chassis having a length that extends from a front end to a rear end of the chassis. The chassis also has a width oriented perpendicular to the length. A boom is pivotally attached to the rear end of the chassis. A cutting component mounted to the boom. A shroud structure at least partially covers the cutting component. A source of vacuum is in fluid communication with an interior of the shroud structure for drawing air containing dust from the interior of the shroud structure. A filter filters the air drawn from the interior of the shroud structure by the source of vacuum. A dust barrier projects downwardly from the shroud structure and extends along at least a portion of a perimeter of the shroud structure.
    Type: Grant
    Filed: January 26, 2015
    Date of Patent: March 7, 2017
    Assignee: Vermeer Manufacturing Company
    Inventors: David William Gift, James Thaddeus Schmidt, Mark Cooper
  • Cab suspension system for a machine adapted to surface excavate rock or like materials
    Patent number: 9238902
    Abstract: A system for providing suspension to a cab of an excavation machine such as a trencher or a surface mining machine. The system includes air cushions and elastomeric dampeners positioned between a platform and the cab. The air cushions allow for a larger displacement than the elastomeric dampeners. The air cushions have a lower natural frequency than the elastomeric dampeners. The elastomeric dampeners stabilize and support the cab in various degrees of freedom that are not supported by the air cushions.
    Type: Grant
    Filed: April 16, 2012
    Date of Patent: January 19, 2016
    Assignee: Vermeer Manufacturing Company
    Inventors: Glenn Meinders, Guy Stephen Brock, David William Gift
  • DUST SUPPRESSION ARRANGEMENT FOR HEAVY EXCAVATION EQUIPMENT
    Publication number: 20150191893
    Abstract: An excavation apparatus is disclosed. The excavation apparatus includes a chassis having a length that extends from a front end to a rear end of the chassis. The chassis also has a width oriented perpendicular to the length. A boom is pivotally attached to the rear end of the chassis. A cutting component mounted to the boom. A shroud structure at least partially covers the cutting component. A source of vacuum is in fluid communication with an interior of the shroud structure for drawing air containing dust from the interior of the shroud structure. A filter filters the air drawn from the interior of the shroud structure by the source of vacuum. A dust barrier projects downwardly from the shroud structure and extends along at least a portion of a perimeter of the shroud structure.
    Type: Application
    Filed: January 26, 2015
    Publication date: July 9, 2015
    Inventors: David William GIFT, James Thaddeus SCHMIDT, Mark COOPER
  • Dust suppression arrangement for heavy excavation equipment
    Patent number: 8955919
    Abstract: An excavation apparatus is disclosed. The excavation apparatus includes a chassis having a length that extends from a front end to a rear end of the chassis. The chassis also has a width oriented perpendicular to the length. A boom is pivotally attached to the rear end of the chassis. A cutting component mounted to the boom. A shroud structure at least partially covers the cutting component. A source of vacuum is in fluid communication with an interior of the shroud structure for drawing air containing dust from the interior of the shroud structure. A filter filters the air drawn from the interior of the shroud structure by the source of vacuum. A dust barrier projects downwardly from the shroud structure and extends along at least a portion of a perimeter of the shroud structure.
    Type: Grant
    Filed: March 5, 2010
    Date of Patent: February 17, 2015
    Assignee: Vermeer Manufacturing Company
    Inventors: David William Gift, James Thaddeus Schmidt, Mark Cooper
  • CAB SUSPENSION SYSTEM FOR A MACHINE ADAPTED TO SURFACE EXCAVATE ROCK OR LIKE MATERIALS
    Publication number: 20140225417
    Abstract: A system for providing suspension to a cab of an excavation machine such as a trencher or a surface mining machine. The system includes air cushions and elastomeric dampeners positioned between a platform and the cab. The air cushions allow for a larger displacement than the elastomeric dampeners. The air cushions have a lower natural frequency than the elastomeric dampeners. The elastomeric dampeners stabilize and support the cab in various degrees of freedom that are not supported by the air cushions.
    Type: Application
    Filed: April 16, 2012
    Publication date: August 14, 2014
    Applicant: Vermeer Manufacturing Company
    Inventors: Glenn Meinders, Guy Stephen Brock, David William Gift
  • DUST SUPPRESSION ARRANGEMENT FOR HEAVY EXCAVATION EQUIPMENT
    Publication number: 20130056233
    Abstract: An excavation apparatus is disclosed. The excavation apparatus includes a chassis having a length that extends from a front end to a rear end of the chassis. The chassis also has a width oriented perpendicular to the length. A boom is pivotally attached to the rear end of the chassis. A cutting component mounted to the boom. A shroud structure at least partially covers the cutting component. A source of vacuum is in fluid communication with an interior of the shroud structure for drawing air containing dust from the interior of the shroud structure. A filter filters the air drawn from the interior of the shroud structure by the source of vacuum. A dust barrier projects downwardly from the shroud structure and extends along at least a portion of a perimeter of the shroud structure.
    Type: Application
    Filed: March 5, 2010
    Publication date: March 7, 2013
    Applicant: Vermeer Manufacturing Company
    Inventors: David William Gift, James Thaddeus Schmidt, Mark Cooper