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:
Feb. 03, 2004
Filed:
Nov. 06, 2002
Abstract
A pressure-resistant balloon includes a gasbag and a volume changing mechanism which deforms the gasbag in a fully inflated state to change a volume of the gasbag. The gasbag includes spindle-shaped gores of an airtight film material, adjacent gores joined together at side edges, and load tapes fitted to joined sections of the side edges, and extending along the side edges, respectively. After inflated, the gasbag allows no gas to be discharged so as to maintain an internal gas pressure. Each of the gores outwardly protrudes between two adjacent load tapes without an elongation of the airtight film material of the gore, when the gasbag is in the fully inflated state. The protruding gore has a radius of curvature in a direction intersecting with the two adjacent load tapes. The radius of curvature is smaller than a radius of the gasbag.