Back to results
US 6,942,717 B2Granted
Venturi effect material return system of a material collection system and appertaining method
AssigneeVac-Con, Inc.
InventorsThomas W. Armstrong, Scott Johnson
Life of this patent
Estimating the term…
Abstract
A material return system of a material collection system and appertaining method permits fine material collected in a fine material collector to be returned to a main debris tank by taking advantage of the venturi effect, thus permitting a relatively trouble-free operation of the material collection system.
Claims26
An apparatus for vacuuming material for vacuuming material and storing it, comprising:
- a debris tank for collecting vacuumed material;
- a fine material collector configured to collect fine material comprising at least one of fine particles, moisture, and fluid that may be pneumatically separated from the debris tank, but may also communicate with the debris tank;
- and
- a mechanism configured to return fine material from the fine material collector to the debris tank, wherein the mechanism comprises a gravity-fed venturi tube located below a bottom of the fine material collector connected to the fine material collector in a manner that permits all fine material from the fine material collector to flow through the venturi tube while maintaining a vacuum in the debris tank.
1 more element
A method for returning fine material from a fine material collector to a debris tank, comprising:
- connecting the fine material collector to a baghouse separator;
- connecting a venturi tube to the fine material collector below a bottom of the fine material collector so that all fine material in the fine material collector can flow via gravity into the venturi tube;
- connecting the venturi tube to a debris tank fine material inlet so that fine material in the venturi tube can flow into the debris tank;
- and
- providing an air stream through the venturi tube wherein the air stream carries the fine material from the fine material collector to the debris tank using the venturi effect while maintaining a vacuum in the debris tank.
2 more elements
Dependencies are inferred from the claim text.