# US 11,079,070 B2 · Cross-contamination prevention system and related methods

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- Number: US 11,079,070 B2
- Document ID: US11079070B2
- Status: Granted
- Kind: B2
- Application number: 15/886,326
- Filed: 2018-02-01
- Published: 2018-08-02
- Granted: 2021-08-03
- Earliest claimed: 2017-02-01
- Applicants: Gary A. Moser
- Inventors: Gary A. Moser
- Web page: https://patentgrep.com/patent/US11079070B2

## CPC

- F17C 7/02: Discharging liquefied gases
- F16B 5/0275: {the screw-threaded element having at least two axially separated threaded portions (F16B5/0283 takes precedence)}
- F16L 15/06: characterised by the shape of the screw-thread
- F17C 6/00: Methods and apparatus for filling vessels not under pressure with liquefied or solidified gases
- F17C 9/00: Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure
- F16B 37/16: Wing-nuts (F16B37/14 takes precedence)
- F16B 2033/025: {with left-hand thread}
- F17C 2201/0109: with exteriorly curved end-piece
- F17C 2201/0119: with flat end-piece
- F17C 2201/032: with substantially vertical main axis
- F17C 2201/035: with substantially horizontal main axis
- F17C 2201/054: medium (>1 m3)
- F17C 2201/058: portable (<30 l)
- F17C 2205/018: Supporting feet
- F17C 2205/03: Fluid connections, filters, valves, closure means or other attachments
- F17C 2205/0364: flexible or articulated, e.g. a hose
- F17C 2205/0373: Adapters
- F17C 2221/01: Pure fluids
- F17C 2221/035: Propane butane, e.g. LPG, GPL
- F17C 2223/0153: Liquefied gas, e.g. LPG, GPL
- F17C 2223/033: Small pressure, e.g. for liquefied gas
- F17C 2225/0153: Liquefied gas, e.g. LPG, GPL
- F17C 2225/033: Small pressure, e.g. for liquefied gas
- F17C 2227/0178: in the vessel
- F17C 2227/041: vessel by vessel
- F17C 2260/056: Improving fluid characteristics
- F17C 2265/00: Effects achieved by gas storage or gas handling
- F17C 2265/06: Fluid distribution
- F17C 2265/061: for supply of supplying vehicles
- F17C 2270/0134: placed above the ground
- F17C 2270/0171: Trucks
- F17C 2270/0745: Gas bottles
- F17C: VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES (storing fluids in natural or artificial cavities or chambers in the earth B65G5/00; construction or assembling of bulk storage containers employing civil-engineering techniques E04H7/00; variable-capacity gas-holders F17B; liquefaction or refrigeration machines, plants, or systems F25)
- F16B: DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING (couplings for transmitting rotation F16D)
- F16L: PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL

## Abstract

A method of transporting liquid petroleum gas (LPG) comprising coupling reverse thread fittings of a first tank to reverse thread fittings of a second tank, the first tank storing the LPG; and allowing the LPG to flow from the first tank to the second tank through the reverse thread fittings of the first tank and the reverse thread fittings of the second tank.

## Claims

### Claim 1

A method of transporting liquid petroleum gas (LPG) comprising:
coupling reverse thread fittings of a first tank to reverse thread fittings of a second tank, the first tank storing the LPG; and
allowing the LPG to flow from the first tank to the second tank through the reverse thread fittings of the first tank and the reverse thread fittings of the second tank.

### Claim 2 (depends on 1)

The method of claim 1, wherein the second tank is mounted to a truck.

### Claim 3 (depends on 1)

The method of claim 1, wherein the reverse thread fittings of the first tank are reverse thread acme fittings.

### Claim 4 (depends on 1)

The method of claim 1 further comprising:
decoupling the reverse thread fittings of the second tank from the reverse thread fittings of the first tank;
moving the second tank; and
coupling the reverse thread fittings of the second tank to reverse thread fittings of a third tank.

### Claim 5 (depends on 1)

The method of claim 1, wherein the reverse thread fittings of the first tank storing the LPG are different than the thread type of a fitting of a fourth tank storing anhydrous ammonia.