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US 12,066,209 B2Granted
Method for producing a ductwork damper, ductwork damper, and ductwork damper unit incorporating same
AssigneeCapital Hardware Supply, LLC
InventorDavid Yoskowitz
Life of this patent
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Abstract
A method for producing an air duct damper includes the steps of punching from sheet metal stock a damper preform having a body and two diametrically opposed arms extending from opposite sides of the body; and forming an indentation in the damper preform extending between and up to respective ends of the two arms.
Claims14
A method for producing an air duct damper, comprising:
- stamping, from a sheet of sheet metal stock, a planar, unibody damper preform having a central body and two integral diametrically-opposed arms extending radially from opposite sides of the central body;
- and
- forming an indentation in the planar, unibody damper preform, the indentation extending longitudinally along an entirety of each of the two integral diametrically-opposed arms and the central body therebetween, wherein forming the indentation causes the two diametrically-opposed arms and the central body to be displaced outwardly from a plane of the planar, unibody damper preform.
Dependencies are inferred from the claim text.