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:
Jan. 29, 1991
Filed:
Oct. 03, 1988
Michael V Chobotov, Palos Verdes Estates, CA (US);
HAC, Los Angeles, CA (US);
Abstract
A propellant measurement system 10 capable of accurate propellant measurement within a low gravity environment is disclosed herein. The propellant measurement system 10 of the present invention includes a pressurization tank 20 of a first volume V.sub.p for enclosing a pressurization gas at a first pressure P.sub.p. The propellent measurement system 10 further includes a propellant tank 40 of a second volumre for storing propellant matter at a second pressure P.sub.u, the first pressure P.sub.p being chosen to be larger than the second pressure P.sub.u. A valve apparatus 60 in communication with the pressurization and fuel tanks 20 and 40 allows a portion of the pressurization gas to flow into the fuel tank 40. Pressure gauges 65 and 70 sense changes in the first and second pressures P.sub.p and P.sub.u in response to the flowing of the pressurization gas.