Is a
Patent attributes
Patent Applicant
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
November 9, 2021
Patent Application Number
20180328
Date Filed
March 28, 2018
Patent Citations Received
Patent Primary Examiner
Patent abstract
A constant force expansion construct includes a plurality of expandable layers, each expandable layer including: (a) a longitudinal restricting beam; and (b) a plurality of interconnected flexible biasing struts connecting the longitudinal restricting beam of one expandable layer to another longitudinal restricting beam in a next adjacent expandable layer, the biasing struts being biased toward a compressed position and being movable between the compressed position and an expanded position in which a distance between successive longitudinal restricting beams is increased.
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