[특허]Temperature-compensated automatic stop fill for filling of tanks with liquids under vapor or gas pressure

[미국특허] Temperature-compensated automatic stop fill for filling of tanks with liquids under vapor or gas pressure 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B67D-005/00
출원번호	US-0526588 (1995-09-11)
발명자 / 주소	Farkas Edward J. (34 Lyonsgate Drive Downsview Ontario CAX M3H 1C8 )
인용정보	피인용 횟수 : 15 인용 특허 : 11

초록 ▼

The invention described in the patent is an automatic control system which provides monitoring, supervision, and control of the process of filling of a tank or container with a liquid. The invention is applicable to cases where the liquid is handled in contact with its own vapor only, or where the liquid must be maintained at all times under a specified gas pressure. The invention provides an improved method of carrying out the process of filling of tanks or containers with liquids such as ammonia, chlorine, propane, liquefied petroleum gas, or with liquids such as carbonated beverages. The main advantage provided by the apparatus and method of the present invention is that an improved means is included for automatically stopping the filling process at the correct point, so as to avoid a possibly hazardous overfilled condition. One of the methods currently in use requires a mechanical valve which senses liquid level in the tank and is supposed to close so as to stop flow to the tank when the liquid has reached the maximum allowable level. The mechanical valve may malfunction and allow overfilling of the tank, and the fact that the valve is malfunctioning may not be readily apparent. The present invention does not require a mechanical valve of the type described above. Further, there is a self-checking and self-monitoring capability so that users of the apparatus and method are warned of any malfunction.

대표청구항 ▼

An apparatus for filling a tank with a liquid, said apparatus comprising: a tank with a tank inlet and a tank outlet; a liquid feed pump; an inlet line with a first end connected to said liquid feed pump and a second end connected to said tank inlet, said inlet line delivering, with a first flow capacity, a liquid from said liquid feed pump to said tank; an outlet line connected to a first side of said tank outlet, said outline line having a second flow capacity that is negligible in relation to said first flow capacity; a sensor positioned within said outlet line at an downstream position from said tank outlet such that it is not exposed to splash-back of said liquid while said liquid is delivered to said tank, said sensor identifying a filling pressure while said liquid is delivered to said tank, said filling pressure being substantially equivalent to the pressure in said tank while said liquid is delivered to said tank; a non-sealing float valve connected to a second side of said tank outlet, said non-sealing float valve causing a non-sealing obstruction of said outlet line when said liquid reaches a predetermined level, and allowing said liquid to flow into said outlet line if the liquid flow through said inlet line is not stopped, said non-sealing obstruction causing within said outlet line an obstruction pressure substantially less than said filling pressure, said obstruction pressure causing said sensor to generate a full tank signal; and a microprocessor connected to said sensor to identify said full tank signal and generate a command signal to stop said liquid feed pump such that said liquid flow is halted at said first end of said inlet line.

이 특허에 인용된 특허 (11) 인용/피인용 타임라인 분석

Sekine Hidetoshi (Kiryu JPX), Air breather system for fuel tank.
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Hartsell ; Jr. Hal C. (Kernersville NC) Pope Kenneth L. (Walkertown NC), Control system for temperature compensated vapor recovery in gasoline dispenser.
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Harris Robert S. (Connersville IN), Fill limit valve assembly.
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Allison Allen (5437 Whitehall W. Bloomfield MI 48323), Fuel delivery and vapor control system for controlling the release of fuel vapors from a vehicle fuel tank.
상세보기
Sakata Yoshiyasu (Tochigi JPX) Sugiyama Mitsuo (Tochigi JPX), Fuel vapor discharge limiting device for fuel tank.
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Spalding Robert G. (Salisbury MD), Gasoline dispenser with vapor recovery system.
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VanOmmeren James (Werley\s Corner PA), Method and system for filling cryogenic liquid containers.
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Milo ; Joseph V., Tank manifold.
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Szlaga Emil (Connersville IN), Tank venting control valve assembly.
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Martin David N. (Royal Oak MI) McCreery Michael C. (Mineral Wells TX), Vacuum assisted loading system.
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Tees Alistair A. (Nederland TX) Kenney Glen E. (Beaumont TX), Vapor recovery system for vehicle loading operation.
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이 특허를 인용한 특허 (15) 인용/피인용 타임라인 분석

Hagenbuch, LeRoy G., Baffled tank for a vehicle.
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Klotz Maynard F. ; Schueman Gary K., Controller for system for filling gas cylinders with single gas or gas mixture.
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Klotz Maynard F. ; Schueman Gary K., Controller for tank-filling system.
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Hal C. Hartsell, Jr., Dispenser system for preventing unauthorized fueling.
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Hal C. Hartsell, Jr., Dispenser system for preventing unauthorized fueling.
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Hartsell, Jr., Hal C., Dispenser system for preventing unauthorized fueling.
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Kehoe Peter A., Filling and venting system for a fuel tank.
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Stemporzewski ; Jr. Francis V. ; Shea Arthur W. ; Cadman Gary R. ; Beaulieu Richard O. ; Tougas Stephen F., Fluid transfer controller with digital bitstream monitor.
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Yang, Zhou; McSpadden, John Steven; Siler, Benjamin T., Fuel dispenser utilizing pressure sensor for theft detection.
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Bennett Willard M., Fuel overflow prevention system with feedback.
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Toth,Peter R., Heater control.
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McTier, Samuel E.; Glandon, Jack, Low emission, fixed maximum liquid level gauge and valve.
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Pechtold, Rainer, Overfill protection for liquid hydrogen tank.
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Dudar, Aed M.; Yang, Dennis Seung-Man; Sharp, Sheven; Pearce, Russell Randall; Ignasiak, Donald; Bolger, Bryan Michael, Systems and methods for preventing fuel tank overfilling.
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Hagenbuch, LeRoy G., Tanker truck with soft start/stop system.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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[미국특허] Temperature-compensated automatic stop fill for filling of tanks with liquids under vapor or gas pressure 원문보기