# US 5,327,945 A · Fuel dispensing spout

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- Number: US 5,327,945 A
- Document ID: US5327945A
- Status: Granted
- Kind: A
- Application number: 08/105,858
- Filed: 1993-08-11
- Granted: 1994-07-12
- Earliest claimed: 1993-08-11
- Assignees: Saber Equipment Corporation
- Inventors: W. Dwain Simpson; James H. Pyle
- Web page: https://patentgrep.com/patent/US5327945A

## CPC

- B67D 7/48: by making use of air suction through an opening closed by the rising liquid
- B67D 7/54: with means for preventing escape of liquid or vapour or for recovering escaped liquid or vapour (B67D7/44 takes precedence)
- F16L 39/00: Joints or fittings for double-walled or multi-channel pipes or pipe assemblies {(quick-acting joints for double-walled or multi-channel pipes or pipe assemblies F16L37/56)}
- B67D: DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR (cleaning pipes or tubes or systems of pipes or tubes B08B9/02; emptying or filling of bottles, jars, cans, casks, barrels, or similar containers, not otherwise provided for B67C; water supply E03; pipe systems F17D; domestic hot-water supply systems F24D; measuring volume, volume flow, mass flow or liquid level, metering by volume G01F; coin-freed or like apparatus G07F)
- F16L: PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL

## Abstract

A fuel dispensing spout for use in a fuel dispensing nozzle is provided. The fuel dispensing spout includes an inner cylindrical member and a concentric outer cylindrical member. The inner and outer cylindrical members are joined by a series of ribs which divide the space between the inner and outer members into a plurality of longitudinally and continually extending subchannels. Some of the subchannels are utilized for vapor recovery during operation of the spout, while one of the subchannels is utilized in detecting pressure increases in captured air contained therein as fuel dispensation takes place. The inside passageway defined by the inner cylindrical member is used for carrying fuel that is to be dispensed.

## Claims

### Claim 1

An integrally extruded fuel dispensing spout assembly having a forward end and a rearward end comprising:
a longitudinally extending inner member defining a passageway for carrying fuel from said rearward end to said forward end;
a longitudinally extending outer member disposed about said inner member and defining a space therebetween;
a plurality of longitudinally extending ribs defining a plurality of channels in said space;
said plurality of channels including at least one continuous longitudinal channel being used in detecting when fuel dispensation has reached a desired level, and at least a second continuous longitudinal channel being adapted for recovering fuel vapor at said forward end and carrying said recovered fuel vapor to a fuel storage compartment;
said outer member including at least one opening formed therein proximate said forward end and in communication with said at least one channel;
said outer member including at least a second opening formed therein proximate said forward and rearward of said at least one opening and in communication with said at least a second channel; and
said at least a second opening not being in communication with said at least one channel and said at least one opening not being in communication with said at least a second channel.

### Claim 2 (depends on 1)

The assembly of claim 1, wherein said outer member includes at least one other opening formed therein along said rearward end and in communication with said at least one channel.

### Claim 3 (depends on 1)

The assembly of claim 1, wherein said outer member includes a further opening formed therein at said rearward end through which fuel vapor exits from said at least a second channel.

### Claim 4 (depends on 3)

The assembly of claim 3, wherein said at least a second channel comprises a plurality of channels.

### Claim 5 (depends on 1)

The assembly of claim 1, wherein each of said outer and inner members has a forward end and a rearward end, said forward end of said outer member extending beyond the forward end of said inner member.

### Claim 6 (depends on 5)

The assembly of claim 5, further including a front end cap located inside the outer member at its forward end and substantially abutting the forward end of the inner member.

### Claim 7 (depends on 6)

The assembly of claim 6, wherein said end cap and said outer member define a chamber therebetween which allows fuel vapor to flow from said at least one opening to said at least one channel.

### Claim 8 (depends on 6)

The assembly of claim 6, wherein said at least a second opening is located rearwardly of said front end cap.

### Claim 9 (depends on 6)

The assembly of claim 6, wherein said outer member includes a further opening formed therein at said rearward end through which fuel vapor exits from said at least a second channel.

### Claim 10 (depends on 1)

The assembly of claim 1, further including a rear end cap located over the outer member of its rearward end.