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:
Apr. 05, 1977
Filed:
Apr. 08, 1976
Paul Slysh, San Diego, CA (US);
LeRoy E Siden, San Diego, CA (US);
General Dynamics Corporation, San Diego, CA (US);
Abstract
A mechanism for deploying and retracting an isogrid structure particularly suited for use in supporting low weight reflective or absorbtive surfaces, characterized by a plurality of hinged isogrid panels stowed in an accordian folded stack arranged for automatic deployment into a long continuous strip or array. Two deployment arms in contact with the stack of panels are rotated to a position perpendicular to the stack, carrying with them the first panels. Thereafter the panels are extended by powered sprockets which engage the panel edges. A shutter bar sequentially releases pairs of panels during deployment. For retraction, the sprockets drive the panels back toward the stack where a creaser bar hinges pairs of panels which are thereafter folded into a stack by means of the shutter bar capturing and stowing each folded pair of panels.