Patent ID: 9221531
Filing Date: 2015-12-29
Classification: B64B

Abstract:
1. An apparatus, comprising: a base plate having a top surface and a bottom surface, wherein the base plate defines an opening, and wherein the base plate is configured to be securable to an exterior of a balloon envelope; at least one stud coupled to the base plate, wherein the at least one stud is configured to be securable to a tendon; a retention ring defining at least one opening configured to receive the at least one stud; a fill-port body defining a cavity, wherein a flange is coupled to the fill-port body, wherein the fill-port body is arranged coaxially with and extends through the opening of the base plate such that the flange lies adjacent to the bottom surface of the base plate; and a locking body coupled to the fill-port body, wherein the locking body defines an opening arranged coaxially with the fill-port body, wherein the fill-port body extends through the opening of the locking body such that a portion of the locking body lies adjacent to the top surface of the base plate.