Fume evacuation system
AssigneeIllinois Tool Works Inc.
InventorsJohn C. Leisner, Brian J. Hammers, Allan T. Hilbert
Life of this patent
Estimating the term…
Abstract
Fume evacuation systems are disclosed. An example fume evacuation system includes: an air handling system for drawing components comprising air, fumes, smoke, or particulate, or a combination thereof from a metal working application; an air conduit couple to the air handling system for conveying the components from the metal working application towards the air handling system; and a hood coupled to the air conduit and configured to be positioned at the metal working application, the hood comprising a structure defining a circuitous path for particulate that, in operation, allows the airborne components to pass through the hood to the air conduit but causes particulate to cool the components.
Claims11
An evacuation system comprising:
- an air handling system for drawing components comprising air, fumes, smoke, or particulate, or a combination thereof, from a metal working applications;
- an air conduit coupled to the air handling system for conveying suctioned air and the components from the metal working applications towards the air handling system, wherein the air conduit comprises a first diameter;
- and
- a hood coupled to the air conduit and configured to be positioned at the metal working application, the hood comprising:
- a structure defining a circuitous path for particulate that, in operation, allows the airborne components to pass through the hood to the air conduit and causes the particulate to cool, wherein the structure comprises an inner deflector with a rounded edge creating an opening defined by a third diameter, the opening corresponding to a first sharp turn through which suctioned air flows through the circuitous path;
- and
- an inlet tube extending into the structure, the inlet tube with an edge defining a second diameter that is smaller than the first diameter and the third diameter, the edge corresponding to a second sharp turn through which suctioned air flows through the circuitous path, the inlet tube comprising one or more baffles arranged within an interior of the inlet tube, each baffle having a plurality of apertures through which the suctioned air from the metalworking applications is drawn prior to being conveyed through the air conduit, wherein the inner deflector comprises a solid flat surface oriented perpendicular to a direction of air flowing into the hood, wherein the solid flat surface is defined by a fourth diameter greater than the second diameter at the opening of the inner deflector.
A fume evacuation system comprising:
- a plurality of hoods configured to be coupled to a common air conduit, wherein each hood of the plurality of hoods is positioned at a respective metal working application, each hood comprising a structure comprises an inner deflector with a rounded edge creating an opening defined by a third diameter, the opening corresponding to a first sharp turn through which suctioned air flows defining a circuitous path for the components that, in operation, allows airborne components from the metal working applications to pass through each hood to the common air conduit and causes particulate matter from the metal working applications to cool;
- and
- an inlet tube arranged within each hood and configured to convey air components from the structure to the common air conduit, wherein each inlet tube has an edge defining a second diameter that is smaller than the third diameter, the edge corresponding to a second sharp turn through which suctioned air flows through the circuitous path, and wherein each inlet tube comprises one or more baffles, each baffle having a plurality of apertures through which the suctioned air from the metalworking applications is drawn prior to being conveyed through the air conduit, wherein the inner deflector comprises a solid flat surface oriented perpendicular to a direction of air flowing into the hood, wherein the solid flat surface is defined by a fourth diameter greater than the second diameter at the opening of the inner deflector.
Dependencies are inferred from the claim text.