The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 03, 1978
Filed:
Oct. 12, 1976
William Henry Robinson, Eastbourne, NZ;
Other;
Abstract
A cyclic shear energy absorber interposed or to be interposed between members of a structure which may be caused by incoming energy to oscillate relative to each other. Such an absorber would have application in isolating a structure such as a building or nuclear power station from movements of its foundation caused by an earthquake. Similarly such an absorber could also dampen movement of a building caused by high wind. The absorber of the invention makes use of the fact that when a metal is plastically deformed, energy is absorbed. Lead which is the best example of such a material from a practical point of view is able to recover and recrystallize within a second or so, thus making the energy absorbing material available to absorb energy resulting from a relative movement opposite to that that caused the immediately preceding deformation under shear.