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US 5,491,937 AGranted
Earthquake isolation bearing
AssigneeR. J. Watson, Inc.
InventorsRonald J. Watson, Paul F. Bradford
Life of this patent
Estimating the term…
Abstract
A unitary compound earthquake isolation bearing which permits the installation of a compound bearing comprising a sliding bearing and at least one MER as a single unit without special and separate attachment of the MER to the support or superstructure.
Claims13
An earthquake isolation bearing comprising:
- a) an upper bearing plate having an upper surface, a lower surface, and a connecting means which downwardly extends from its lower surface;
- b) a lower bearing plate having an upper surface, a lower surface, and a connecting means which upwardly extends from its upper surface;
- c) at least two mass energy regulators horizontally connected between said connecting means;
- and
- d) a bearing element located between the lower surface of the upper bearing plate and the upper surface of the lower bearing plate, between the mass energy regulators and between the upper and lower bearing plate connecting means said upper bearing plate, said lower bearing plate, said mass energy regulators and said bearing element being assembled to permit handling and installation of the isolation bearing as a single unit.
2 more elements
Dependencies are inferred from the claim text.