Air canopy ventilation system
OwnerCameron Coteinventor
Life of this patent
Estimating the term…
Abstract
An air canopy ventilation system is disclosed which comprises a surface having two substantially parallel spaced apart side walls surmounted at their respective upper edges by a canopy. A vent means having a plurality of outlets extends between the side walls and substantially the whole length of the front edge of the surface. A fan means connected to the vent means is adapted to drive a flow of air through the vent means upwardly to form a curtain of air over the front of the system, thereby entraining within the area fumes and odors. The upwardly flowing air, fumes and odors are removed by an exhaust means. The exhaust means can include a filter means and a return air means. The system has applications in commercial cooking systems, laboratories, and areas requiring removal of fumes and gases from an enclosed working surface.
Claims20
A canopy system for cooking equipment comprising two mutually substantially parallel side walls and a rear wall extending upwardly from each side and the rear of a cooking surface and surmounted by an upper canopy, vent means adjacent to and extending substantially the whole length of a front edge of said cooking surface, means connected to and adapted for driving a flow of air through said vent means upwardly towards said upper canopy so as to form in use an upwardly directed air curtain, said upper canopy including exhaust means centrally located therein and disposed laterally inwardly from the plane of said air curtain for continuously exhausting the upper portion of said air curtain together with cooking fumes generated during operation of said cooking surface, the lower portion of each of said side walls including duct means for the supply of a supplementary air flow to assist in directing air away from the side edges of said upwardly directed air curtain and improving the integrity of said air curtain, and means for driving a supplementary flow of air through said duct means.
A canopy system as claimed in claim wherein said exhaust means includes a filter means.
A canopy system for equipment tending to create fumes during use and having a front, rear opposite sides, said system comprising in combination:
- opposite side and rear walls arranged to extend upwardly from adjacent said opposite sides and rear of said equipment, an upper canopy surmounting said opposite side and rear walls, air curtain producing means disposed to extend along said front of said equipment intermediate said side walls and cooperating with said upper canopy and said side walls to define an opening, said upper canopy having a front arranged horizontally between said air curtain producing means and said rear wall, said air curtain producing means being adapted to direct an air curtain upwardly towards said upper canopy rearwardly of said front thereof, exhaust means arranged to draw fumes into said upper canopy from adjacent said rear wall, and each of said side walls having vents extending vertically and rearwardly along opposite edges of said opening for introducing air adjacent opposite vertically extending edges of said air curtain.
Dependencies are inferred from the claim text.