Patent ID: 7878463
Filing Date: 2011-02-01
Classification: F16J,Y10T

Abstract:
1. A method of creating a rotary seal between a rotatable shaft passing through a hole in a wall with a substantial open clearance space between said shaft and a perimeter of said hole comprising: forming a pair of semicircular ring segments each with an attached generally flat base structure extending radially out from substantially the entire outer perimeter of each of said ring segments; assembling said semicircular ring segments to each other and onto said shaft to encircle the same with a seal contained within said assembled ring segments pressed into engagement with said rotatable shaft to create a rotary seal; and pressing a surface of said base structure attached to each of said assembled ring segments against a wall surface extending radially outward and around a perimeter of said hole to seal said clearance space between said shaft and said perimeter of said hole surface by clamping a surface of each of said base structures against said wall surface by affixing projecting studs to said wall surface and forming respective openings in said base structures located to receive said studs; and, mating cam elements to respective studs so as to force said base structures against said radially outward extending wall surface around a perimeter of said hole to seal said shaft clearance space.