Bearings – Linear bearing – Plain bearings
Reexamination Certificate
2005-12-06
2005-12-06
Hannon, Thomas R. (Department: 3682)
Bearings
Linear bearing
Plain bearings
C014S073500
Reexamination Certificate
active
06971795
ABSTRACT:
A seismic isolation bearing comprises a lower plate, an upper plate, and a cylindrical roller in rolling contact with an upwardly facing, bearing surface of the lower plate and a downwardly facing surface of the upper plate. The lower plate is fixable to a base, while the upper plate is fixable to a superstructure. One or both bearing surfaces are sloped to form a central trough at which the cylindrical roller resides under normal weight of the superstructure, and toward which the roller is biased when displacement between the plates occurs. A pair of sidewall members are fixed to the lower plate to withstand strong forces directed laterally with respect to the isolation axis along which rolling displacement occurs, and a pair of sliding guides carried one at each end of the roller provide dry frictional damping as they engage an inner wall surface of a corresponding sidewall member.
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Lee George C.
Liang Zach
Niu Tie-Cheng
Hannon Thomas R.
Hodgson & Russ LLP
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