Vermeer Manufacturing Company, Inc.

David William Gift

James W Skinner

Nathan Meyer

Corey Lanoue

Andy Strobel

Daniel John Hofland

Tayte Askelsen

Adam Bates

Nathan J Meyer

Mark R Cooper

James Thaddeus Schmidt

Glenn Meinders

Guy Stephen Brock

Hydro excavation vacuum apparatus that process spoil material onboard the apparatus by separating water from the cut earthen material are disclosed.

Vacuum excavation apparatus having a deceleration vessel and methods for excavating a site

Hydro excavation vacuum apparatus

Airlocks for conveying material, hydro excavation vacuum apparatus having airlocks, and methods for hydro excavating a site

Hydro excavation vacuum apparatus having an adjustment system for adjusting a dewatering system screen

Hydro excavation vacuum apparatus having deceleration vessels and methods for hydro excavating a site

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. The dust barrier has a construction that is pervious to debris generated by the cutting component and that provides gradually reduced restriction to inward air flow through the dust barrier as the dust barrier extends downwardly from the shroud structure.

Dust suppression arrangement for heavy excavation equipment

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.

Cab suspension system for a machine adapted to surface excavate rock or like materials

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Pella, IA, United States of America

David William Gift