Patent ID: 6971631

Claim:
A fluid damper, comprising: a. a frame, said frame including a base, a wall portion extending outwardly from said frame 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 portion positioned to at least partially circumvent said aperture; c. a first flange said first flange being movable in said aperture; d. a skirt connected to and movable with said first flange, said skirt terminating in a stepped edge portion lying adjacent to said stepped edge portion of said wall portion of said frame; e. a second flange, said first flange positioned in overlying relationship with said second flange; and f. 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 at least partially closing said aperture.