# US 10,865,556 B2 · Extender for vehicle sewer connection

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- Number: US 10,865,556 B2
- Document ID: US10865556B2
- Status: Granted
- Kind: B2
- Application number: 15/984,041
- Filed: 2018-05-18
- Published: 2019-11-21
- Granted: 2020-12-15
- Earliest claimed: 2018-05-18
- Applicants: Jeffery Wright
- Inventors: Jeffery Wright
- Web page: https://patentgrep.com/patent/US10865556B2

## CPC

- E03F 1/008: {Temporary fluid connections for emptying mobile sewage holding tanks, e.g. of trailers, boats}
- F16L 27/0841: {forming an angle of less than 90 degrees}
- E03F: SEWERS; CESSPOOLS
- F16L: PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL

## Abstract

A sewer extender useful with recreational vehicles to connect vehicle sewer discharge connectors to ground connectors comprises, in one embodiment, a tubular main body having a proximal end and a distal end; the distal end having a plurality of external threads comprising a plurality of thread segments that are defined by a plurality of spaced-apart relief cuts; a tubular telescoping body adapted to slide into the tubular main body via the distal end; a compression nut having tapered internal threads that are configured to threadedly attach to the plurality of thread segments, and when tightened, to compress the thread segments against the telescoping body to fix the telescoping body in a fixed position with respect to the main body accommodating multiple heights of recreational vehicles. The main body can be configured to articulate at different degrees to allow for multiple connections at different ground level sewer connections.

## Claims

### Claim 1

A sewer extender comprising:
a tubular main body having a proximal end and a distal end;
the distal end having a plurality of external threads, the plurality of external threads comprising a base section of circumferential threads and a plurality of thread segments that are defined by a plurality of spaced-apart relief cuts, the base section of circumferential threads being integrally formed with the plurality of thread segments, each of the thread segments in the plurality of thread segments being defined by the spaced-apart relief cuts, each spaced-apart relief cut comprising a recess having a wider base opening and inwardly tapered spaced-apart edges extending to the tip of the distal end to form a narrower opening that is coextensive with the distal end;
a tubular telescoping body adapted to slide into the tubular main body via the distal end and through the thread segments;
a compression nut having tapered internal threads that are configured to threadedly attach to the plurality of thread segments, and when tightened, to compress the thread segments against the telescoping body to fix the telescoping body in a fixed position with respect to the main body.

### Claim 2 (depends on 1)

The sewer extender of claim 1, further comprising an adapter affixed to the proximal end of the main body and configured to couple to a sewer connection of a vehicle.

### Claim 3 (depends on 1)

The sewer extender of claim 1, further comprising a 45-degree adapter affixed to the proximal end of the main body and configured to couple to a sewer connection to discharge sewage from a recreational vehicle to a sewer connection at ground level.

### Claim 4 (depends on 1)

The sewer extender of claim 1, the telescoping body having a proximal end, elongated walls enclosing an interior cavity and a distal end, the telescoping body further comprising a coupling affixed to the distal end of the telescoping body and configured to couple to a hose or ground sewer connection of a ground location.

### Claim 5 (depends on 1)

The sewer extender of claim 1, the telescoping body having a proximal end, elongated walls enclosing an interior cavity and a distal end, the telescoping body further comprising a 45-degree coupling that is affixed to the distal end of the telescoping body and having a bayonet flange that is configured to couple to a recreational vehicle.

### Claim 6 (depends on 1)

The sewer extender of claim 1, the main body comprising three inch inside diameter ABS pipe and the telescoping body comprising three inch outside diameter aluminum tubing.

### Claim 7 (depends on 1)

The sewer extender of claim 1, the external threads being inwardly tapered, wherein the base section has a first circumferential dimension that is larger than a second circumferential dimension around the thread segments.

### Claim 8

A sewer extender comprising:
a tubular main body having a proximal end and a distal end;
an adapter affixed to the proximal end of the main body and configured to couple to a sewer connection of a vehicle;
the distal end of the main body having a plurality of external threads, the plurality of external threads comprising a base section of circumferential threads and a plurality of thread segments that are defined by a plurality of spaced-apart relief cuts, the base section of circumferential threads being integrally formed with the plurality of thread segments;
each of the thread segments in the plurality of thread segments being defined by the relief cuts each comprising a recess having a wider base opening and inwardly tapered spaced-apart edges extending to the tip of the distal end to form a narrower opening that is coextensive with the distal end;
the external threads being inwardly tapered, wherein the base section has a first circumferential dimension that is larger than a second circumferential dimension around the thread segments;
a tubular telescoping body adapted to slide into the tubular main body via the distal end, the telescoping body having a proximal end, elongated walls enclosing an interior cavity and a distal end of the telescoping body, the telescoping body further comprising a coupling affixed to the distal end of the telescoping body and configured to couple to a hose or ground sewer connection of a ground location;
a compression nut having tapered internal threads that are configured to threadedly attach to the plurality of thread segments;
the main body comprising three inch inside diameter ABS pipe and the telescoping body comprising three inch outside diameter aluminum tubing.

### Claim 9 (depends on 8)

The sewer extender of claim 8, the compression nut having tapered internal threads that are configured to threadedly attach to the plurality of thread segments, and when tightened, to compress the thread segments against the telescoping body to fix the telescoping body in a fixed position with respect to the main body.

### Claim 10 (depends on 8)

The sewer extender of claim 8, further comprising a 45-degree adapter affixed to the proximal end of the main body and configured to couple to a sewer connection of a recreational vehicle.

### Claim 11 (depends on 8)

The sewer extender of claim 8, the telescoping body further comprising a 45-degree coupling that is affixed to the distal end of the telescoping body and having a bayonet flange that is configured to couple to a recreational vehicle.