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:
May. 31, 1994
Filed:
Jan. 22, 1993
Applicant:
Inventors:
John E Goode, Arlington, TX (US);
Michael D Hoyle, Arlington, TX (US);
Raymond E Lance, Fort Worth, TX (US);
Assignee:
Hydra-Rig, Incorporated, Ft. Worth, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F25B / ;
U.S. Cl.
CPC ...
62-7 ; 62 501 ; 62 502 ; 123525 ; 123527 ; 137210 ; 137567 ; 141-4 ; 220330 ;
Abstract
In a combined liquid natural gas and compressed natural gas fueling station, liquid natural gas is stored in a cryogenic tank and dispensed to vehicles on demand. Compressed natural gas is produced on demand from the liquid natural gas by a high-efficiency pump and vaporizer system and dispensed directly to vehicles or stored for later dispensing. For greater efficiency, the pump and vaporizer system is powered by combustion of natural gas, including gas bled off to relieve pressure from the cryogenic tank.