Back to results
US 2019/0093902 A1Published application
Downdraft ventilation systems and methods
AssigneeBroan-NuTone LLC
InventorsKurt Limberg, Brent Lillesand, Richard R. Sinur, Marjorie Schwanke
Life of this patent
Estimating the term…
Abstract
A downdraft ventilation system includes a vertically movable chimney with two ventilation inlets and a baffle arranged within the chimney between the inlets. The combination of upper and lower ventilation inlets and internal baffle can function to increase the amount of cooking emission captured and exhausted by the downdraft system.
Claims23
-29. (canceled)
A downdraft ventilation system comprising:
- a chimney defining:
- an upper fluid inlet,
- a lower fluid inlet and
- a chamber between the upper and lower fluid inlets,
- the chimney upper and lower fluid inlets defining a flow path into which cooking emissions emanating from a cooking appliance adjacent to the chimney can flow;
- and
- the chamber defining:
- a venturi inlet adjacent to the upper fluid inlet,
- a venturi outlet adjacent to the lower fluid inlet and
- a venturi throat between the venturi inlet and the venturi outlet.
7 more elements
A downdraft ventilation system comprising:
- a chimney having a front inner wall and a back inner wall, the chimney defining:
- an upper fluid inlet defined through the front inner wall,
- a lower fluid inlet defined through the front inner wall, and
- a chamber defined at least partially by the front inner wall and the back inner wall between the upper and lower fluid inlets,
- the chimney upper and lower fluid inlets defining a flow path into which cooking emissions emanating from a cooking appliance adjacent to the chimney can flow;
- and
- the chamber defining:
- a venturi inlet adjacent to the upper fluid inlet,
- a venturi outlet adjacent to the lower fluid inlet and
- a venturi throat between the venturi inlet and the venturi outlet.
7 more elements
A downdraft ventilation system comprising:
- a moveable chimney having a front inner wall and a back inner wall, the chimney defining:
- an upper fluid inlet defined through the front inner wall,
- a lower fluid inlet defined through the front inner wall, and
- a chamber defined at least partially by the front inner wall and the back inner wall between the upper and lower fluid inlets,
- the chimney upper and lower fluid inlets defining a flow path into which cooking emissions emanating from a cooking appliance adjacent to the chimney can flow;
- and
- a baffle extending from the front inner wall into the chamber to define a venturi throat in the chamber.
4 more elements
Dependencies are inferred from the claim text.