Sewer transfer system

• US 5,324,001 A
• Filed: 11/02/1993
• Issued: 06/28/1994
• Est. Priority Date: 12/21/1992
• Status: Expired due to Fees

• Current Assignee: Robert L. Duke
• Original Assignee: Robert L. Duke
• Inventors: Duke, Robert L.
• Primary Examiner(s): Schwadron, Martin P.
• Assistant Examiner(s): Lee, Kevin L.
• Application Number:
  US08/144,565
• Time in Patent Office: 238 Days
• Field of Search: 251/148, 251/147, 285/302, 285/179, 285/236, 285/901, 277/147, 277/207 A
• US Class Current: 251/147
• CPC Class Codes: B60R 15/00 Arrangements or adaptations of sanitation devices
• CPC Class Codes: E03F 1/00 Methods, systems, or installations for draining-off sewage or storm water
• CPC Class Codes: E03F 1/008 Temporary fluid connections for emptying mobile sewage holding tanks, e.g. of trailers, boats
• CPC Class Codes: F16L 27/12 allowing substantial longitudinal adjustment or movement by use of screw-thread F16L15/02

Abstract

A sewage transfer system connecting the sewer outlet of a recreational vehicle to a remote sewer collection inlet that include a primary sewer line to connect the vehicle sewer outlet; an L-shape rigid pipe associated with the primary sewer line; and a hub, washer and clamping device to connect the L-shaped rigid pipe in a gas-tight and water-tight connection to the sewer inlet.

Claims

1. A system for joining a primary sewage line of recreational vehicle to a sewer inlet comprising:

a rigid pipe, said pipe having first and second sections, said first section for releasable attachment to said primary sewage line, said second section for rotational attachment to said sewer inlet, said second section having a terminal end, an end flange, said end flange positioned on the terminal end of said second section, a first washer, said first washer having top and bottom surfaces, said first washer slidably affixed around said second section with said bottom surface in contact with said end flange, a resilient cylindrically shaped hub band, said cylindrically shaped hub band having an upper end and a lower end, said upper end defining a small axial opening, said lower end defining a large axial opening, said small axial opening aligned with and in fluid communication with said large axial opening, said second section positioned within said small axial opening, said first washer positioned within said large axial opening of said hub band, said hub band extending axially beyond said terminal end of said second section for receiving said sewer inlet therewithin, means to adjustably clamp said hub band to said rigid pipe and to said sewer inlet, said clamping means positioned around said hub band whereby said sewer inlet inlet is receivable within said large axial opening against said bottom surface of said first washer to thereby seal said sewer inlet to said rigid pipe and to allow rotation of said rigid pipe relative to said sewer inlet when said clamping means is loosely adjusted.

2. The system of claim 1 wherein said rigid pipe is L-shaped.

3. The system of claim 2 and including a biased means close said first section , said biased closing means attached to said first section.

4. The system of claim 3 wherein is biased sealing means is pivotally affixed to said first section.

5. The system of claim 1 and including a second washer, said second washer positioned on said second section in contact with said upper end of said hub band.

6. The system of claim 1 and including an external flange said external flange positioned on said second section above said hub band.

7. The system of claim I and including a flange sleeve, said sleeve joined to said terminal flange, said sleeve for attachment within said second section.

8. A system for joining a primary sewage line of a recreational vehicle to a sewer inlet comprising:

a rigid L-shaped pipe, said L-shaped pipe having first and second sections, said first section for releasable attachment to said primary sewage line, said second section for rotational attachment to said sewer inlet, said second section having a terminal end, an end flange, said end flange positioned on the terminal end of said second section, a first washer, said first washer having top and bottom surfaces, said first washer slidably affixed around said second section with said bottom surface contacting said end flange, said washer extending radially beyond said end flange, a resilient cylindrically shaped hub band, said cylindrically shaped hub band having an upper end and a lower end, said upper end defining a small axial opening, said lower end defining a large axial opening, said small axial opening aligned with and in fluid communication with said large axial opening, said second section positioned within said small axial opening, said first washer positioned within said large axial opening of said hub band, said hub bad extending axially beyond said terminal end of said second section for receiving said sewer inlet therewithin, means to adjustably clamp a said hub band to said rigid pipe and to said sewer inlet, said clamping means positioned around said hub band whereby said sewer inlet is receivable within said large axial opening against said bottom surface of said first washer radially outwardly from said flange to thereby seal said sewer inlet to said rigid L-shaped pipe and to allow rotation of said rigid L-shaped rigid pipe relative to said sewer inlet when said clamping means is loosely adjusted.

9. The system of claim 8 and including a biased means close said first section, said biased closing means attached to said first section.

10. The system of claim 9 wherein said biased sealing means is pivotally affixed to said first section.

11. The system of claim 8 and including a second washer, said second washer positioned on said second section in contact with said upper end of said hub band.

12. The system of claim 8 and including an external flange, said external flange positioned on said second section above said hub band.

13. The system of claim 8 and including a flange sleeve, said sleeve joined to said terminal flange, said sleeve for attachment within said second section.

14. The system of claim 8 wherein said clamping means comprises a metal band.

15. A system for joining a primary sewage line to a sewer inlet comprising;

a rigid pipe, said pipe having first and second sections, said first section for releasable attachment to said primary sewage line, said second section for rotational attachment to said sewer inlet, said second section having a terminal end, an end flange, said end flange positioned on the terminal end of said second section, a cylindrically shaped hub band, said shaped hub band having an upper end and a lower end, said upper end defining a small axial opening, said lower end defining a large axial opening, said small axial opening aligned with and in fluid communication with said large opening, said end flange having a diameter greater than the diameter of said small axial opening, said second section positioned within said small axial opening with said flange positioned in said large axial opening whereby said sewer inlet is receivable within said large axial opening to thereby seal skid sewer inlet to said rigid pipe.

16. The system of claim 15 wherein said rigid pipe L-shaped.

17. The system of claim 15 and including means to adjustably clamp said hub band to said rigid pipe and said sewer inlet.