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US 6,712,335 B1Granted
Fluid damper
OwnerBart Naughtoninventor
Life of this patent
Estimating the term…
Abstract
A damper utilizing a frame having a base and a wall portion extending outwardly from the same. The wall portion supports a stepped edge which is positioned to at least partially circumvent and aperture formed by the frame. A plurality of flanges are positioned in overlying relationship and slidably move relative to one another by a mechanical mechanism. A plurality of flanges ride on a stepped edge portion to cause fanning of the flanges across the aperture to selectively occlude the aperture or a portion thereof.
Claims12
A fluid damper, comprising:
- a. a frame, said frame comprising a base, a wall portion extending outwardly from said base, said wall portion possessing an end said frame defining an aperture therethrough;
- b. a stepped edge portion located at said end of said wall portion said stepped edge positioned to at least partially circumvent said aperture;
- c. a first flange and a second flange, said first flange positioned in overlying relationship with said second flange, said first flange being moveably relative to said second flange in said overlying relationship;
- and
- d. means for moving said first flange relative to said second flange, said first and second flanges riding on said stepped edge portion to move from a first position leaving said aperture open to a second position closing said aperture.
2 more elements
Dependencies are inferred from the claim text.