Resources Contact Us Home
Wedge sealed damper

Image Number 2 for United States Patent #4294283.

A damper assembly comprising, in combination, a generally rectangular frame including side, top and bottom members, a plurality of damper blades supported at opposite ends on the side members of the frame for limited rotative movement about axes extending longitudinally and substantially centrally of the blades, each of said blades comprising a resilient sealing strip along at least one edge of said blade, and the ends of the blades being angled in opposite directions above and below the rotative axis of the blades, and cooperating with resilient side sealing strips in the frame, the ends of the blades wedging against the sealing strips as the blades approach closed position, the blades being held in closed position by the wedging action.

  Recently Added Patents
System and method for browsing tabbed-heterogeneous windows
Discovery, analysis, and visualization of dependencies
Plants and seeds of hybrid corn variety CH450823
Managing job execution
Stacked thin-film superlattice thermoelectric devices
Bull stationery tab
Method and system for fail-safe call survival
  Randomly Featured Patents
Methods for forming uniform lithographic features
System and method for providing digital pulse width modulation
Fiber optic connector with micro-alignable lenses and associated fabrication method
Method and device for operating an internal combustion engine
Voice over internet protocol (VoIP) testing
Drawstring puller and fastener for shoelaces
Pipelining particulate solid material as stable foam slurry
Multi-chip package flash memory device and method for reading status data therefrom
On-line detection of partial discharge in electrical power systems
Method for generating mask data, mask and computer readable recording media