Back to results
US 4,304,217 AGranted
Anti-smoke emitting stove
AssigneePenn-Field Stove, Inc.
InventorTerrance E. McGinn
Life of this patent
Estimating the term…
Abstract
A wood or coal burning stove has an air inlet opening in it which is controlled by a movable closure, a movable front door providing access to the interior fire box, and connecting linkage means which opens the closure when the front door is closed and shuts the closure when the front door is opened.
Claims5
A stove comprising a cabinet having therein an internal fire box,
- said cabinet having through it an air inlet opening to supply exterior air to the fire box,
- an outlet opening to deliver combustion gases to a flue and
- a door opening which opens from the outside directly into the fire box for fuel supply to the fire box,
- the stove also including a movable closure for controlling air supply to said inlet opening,
- a movable door for covering said front door opening,
- a movable stud element disposed in the closing path of the front door,
- and operative connecting means between said stud element and said closure for establishing a reverse open and closed relationship between them whereby the closure is open when the door is shut and the closure is closed when the door is open,
- whereby when the front door is opened the air inlet opening is closed and the flue will thereby draw combustion gases from the fire box so they will not escape into the room.
5 more elements
Dependencies are inferred from the claim text.