초록 ▼

A mobile debris collection machine which has an improved filter system includes a chassis, wheels for supporting the chassis, an operator controlled debris pickup on the chassis and a debris container on the chassis. There is a vacuum system for carrying debris from the pickup to the container, with

A mobile debris collection machine which has an improved filter system includes a chassis, wheels for supporting the chassis, an operator controlled debris pickup on the chassis and a debris container on the chassis. There is a vacuum system for carrying debris from the pickup to the container, with the vacuum system including a vacuum fan located above the debris container for creating an air stream that moves dust and debris from the pickup toward the container. A filter system for removing dust and debris from the airstream includes a first filter stage formed of a rotating perforated member, a second filter stage that is located downstream of the vacuum fan and includes a mesh filter bag, and a third filter stage, located downstream from the second filter stage and including a pleated panel filter.

대표청구항 ▼

1. A mobile debris collection machine having an improved filter system including a chassis, a debris collection pickup on said chassis, a debris container on said chassis, a vacuum system for carrying dust and debris from said pickup to said container,said vacuum system including a housing associate

1. A mobile debris collection machine having an improved filter system including a chassis, a debris collection pickup on said chassis, a debris container on said chassis, a vacuum system for carrying dust and debris from said pickup to said container,said vacuum system including a housing associated with said container and having a dust and debris inlet opening therein above said container, an outlet in said housing, a vacuum fan for creating an air stream that moves dust and debris into said housing and moves dust out of said housing, and a filter system for removing dust from said air stream and depositing debris into said container, said filter system including a first filter stage having a rotating filter element that separates debris from said air stream and is located upstream of said vacuum fan, a second filter stage that is located downstream of said vacuum fan, and a third filter stage downstream of said second filter stage and positioned outside of said housing.