Heated make-up air system
AssigneeCaptive-Aire Systems, Inc.
InventorsTodd J. Saltzman, William B. Griffin
Life of this patent
Estimating the term…
Abstract
A heated make-up air system comprising a duct structure having a direct gas fired burner mounted therein. Adjacent the burner there is provided an opening for permitting air to flow there through. Mounted adjacent the opening one or more pivotally mounted panels or profile plates. The moveable panels or profile plates are spring-biased to assume a normally closed position. However, the moveable panels are moveable from the closed position to an open position in order to control air flow through the duct structure and past the burner.
Claims12
An air heating system comprising:
- a. a duct structure;
- b. a direct-fired burner disposed within the duct structure;
- c. at least one moveable panel disposed within the duct structure adjacent the burner;
- d. a spring operative to bias the moveable panel to a selected position and wherein the panel may move against the bias of the spring in response to air flowing past the burner and through the duct structure;
- and
- e. wherein the spring comprises a coiled spring having opposed terminal ends wherein one end moves with the panel while the other end is held relatively stationary.
A system for heating air, comprising:
- a. a duct structure;
- b. a direct-fired burner disposed within the duct structure;
- c. a pair of laterally-spaced panels pivotally mounted within the duct structure;
- d. a spring operative to bias each moveable panel towards a closed position and wherein each panel is pivotally moveable from the closed position to an open position;
- e. wherein in the closed position the moveable panels assume a spaced-apart relationship and there is defined an open area there between that permits air to flow there through;
- and
- f. wherein the direct-fired burner is disposed in the duct structure such that it generally aligns with the open area defined by the moveable panels.
Dependencies are inferred from the claim text.