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. 14, 2017
Filed:
Aug. 27, 2015
Applicant:
Southwest Research Institute, San Antonio, TX (US);
Inventor:
William D. Perry, Helotes, TX (US);
Assignee:
SOUTHWEST RESEARCH INSTITUTE, San Antonio, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G05D 1/04 (2006.01); B64B 1/44 (2006.01);
U.S. Cl.
CPC ...
G05D 1/042 (2013.01); B64B 1/44 (2013.01);
Abstract
The present disclosure relates to a balloon system that includes a flexible volume balloon hull configured to contain a lifting gas, a flexible volume ballonet contained within said balloon hull configured to contain a refrigerant gas and a refrigerant gas transfer device in fluid communication with the ballonet to control the balloon's vertical ascent and descent.