Sewer ventilator system for recreational vehicles, boats and the

Details Sewer ventilator system for recreational vehicles, boats and the Sewer ventilator system for recreational vehicles, boats and the

1992-06-15

1994-04-05

Phillips, Charles E.

Baths, closets, sinks, and spittoons

Ventilation

Electric-motor pump

4218, E03D 904

Patent

active

052993272

ABSTRACT:
An automatic forced air ventilation system for recreational vehicles, railroad cars or the like designed to be operated during commode flushing The system creates negative pressure in the holding tank to prevent obnoxious odors from back-flowing into the vehicle. The sewer gases are exhausted outside of the vehicle during flushing of the commode. A ventilation fan assembly suctions a vent pipe leading to the sewage holding tank. The fan assembly comprises a tubular header with a fan disposed within. A circuit selectively operates the fan. In the preferred embodiment the tubular header is mounted on the roof of the vehicle over the existing vent pipe. A flange extends from the header and secures the fan assembly to the roof of the vehicle. The fan comprises an impeller of a diameter slightly less than the internal diameter of the header and a direct current motor adapted to operate at the voltage provided by the vehicle. A collar circumscribes the interior of the header forming a sill directly below the impeller. The control circuit comprises a latching relay responsive to at least one of a plurality of isolated sources such as the bathroom light switch, one or more timer switches or microswitches operated by the flushing mechanism, or a movement sensor disposed within the bathroom.

REFERENCES:
patent: 346714 (1886-08-01), Boyd
patent: 346715 (1886-08-01), Boyd
patent: 1010100 (1911-11-01), Wallace
patent: 3571822 (1971-03-01), Shaw
patent: 4922557 (1990-05-01), Harding et al.

Affiliated with

Also associated with

Rating

Sewer ventilator system for recreational vehicles, boats and the does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Sewer ventilator system for recreational vehicles, boats and the, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sewer ventilator system for recreational vehicles, boats and the will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-504102