US 20050150562 A1
The sewage dump system of this invention comprises an elongated housing adapted for support on a mobile vehicle, the housing having an elongated sewage hose storage compartment having a height slightly greater than the diameter of a storage hose and communicating at its open end with an adjoining space configured to contain a hose outlet fitting on the outlet end of the sewage hose, the storage hose being folded intermediate its ends for reception in the hose storage compartment for guidance therein between said folded condition within the compartment and an extended position with the hose fitting communicating with a sewage dump site. In one embodiment, a plurality of spaced rollers having concave peripheries are spaced apart along one longitudinal side of the storage compartment to facilitate guiding the storage hose during extension and retraction. In a second embodiment a yoke member having guide rollers on its spaced ends is connected to a line extending retractably from a rotary power source for movement between a position retracted within the hose compartment with the folded sewage hose and an extended position at the adjoining space for extending the sewage hose to a sewage dump site.
1. A sewage dump system for RV and other mobile vehicles having sewage waste systems, the sewage dump system comprising:
a) an elongated housing adapted for support on a mobile vehicle,
b) the housing including an elongated sewage hose storage compartment defining a space having a height slightly greater than the diameter of a small diameter sewage hose and having a closed end and an open end, and
c) an adjoining space in the housing communicating with the open end of the sewage hose storage compartment and configured to removably contain a hose outlet fitting on the outlet end of a sewage hose configured for communication with a sewage dump site.
2. The sewage dump system of
3. The sewage dump system of
4. The sewage dump system of
5. The sewage dump system of
6. The sewage dump system of
a) an elongated sewage hose of small diameter, and
b) a macerator having an outlet end communicating with the end of the sewage hose opposite the hose outlet fitting and an inlet end communicating with the sewage waste system of the vehicle.
This invention claims the benefit of Provisional application Ser. No. 60/536,139, Filed 12 Jan. 2004.
This invention relates to the sewage systems of various types of recreational mobile vehicles, such as RV's, 5th wheels, camper trailers and marine craft, and more particularly to a system by which to transfer raw sewage from vehicle holding tanks to sewage disposal stations.
It presently is the practice for owners of RV and other mobile craft to connect the outlet of the sewage waste system to the inlet of a macerator, the outlet of the macerator being connected to one end of a hose, the opposite end of which is adaptable for coupling to a disposal pipe of a remote sewage dump station. Typical of the above conventional systems are those disclosed in U.S. Pat. Nos. 6,352,088; 5,323,813; and 4,643,229.
In prior sewage dump systems typified by U.S. Pat. No. 6,352,088 above, there is the accepted requirement of having to coil, fold, collapse, or otherwise shorten a small diameter hose in order to store it in a compartment in the vehicle. Storage space in the vehicle must accommodate the dimensions of the shortened tube. The shorter the tube, the smaller the storage space, but the closer the vehicle must be maneuvered to the discharge pipe of the dump station.
In its basic concept, the system of this invention comprises an elongated hose of selected length and small diameter for communicating the large diameter waste line of the sewage system in an RV or other vehicle with a remote sewage disposal station located a distance from the vehicle, and a storage unit in the RV or other vehicle for containing the small diameter hose in a retracted condition of minimum volume for ready extraction and extension to a remote sewage disposal site.
It is the principal objective of this invention to provide a sewage dump system of the class described to overcome the limitations and disadvantages of prior sewage dump systems.
Another objective of this invention is the provision of a sewage dump system of the class described in which the storage unit facilitates both retracting and out-feeding of a small diameter hose into and from a confined storage space and which insures against kinking and other constriction of the hose.
Still another objective of this invention is to provide a sewage dump system of the class described in which the storage unit includes guide means for controlling the retraction and out feeding of a small diameter hose.
A further objective of this invention is the provision of a sewage dump system of the class described in which the storage unit guide means includes resiliently retractable and extendable hose guide mechanism which facilitates rapid and easy manipulation of the hose.
The foregoing and other objects and advantages of this invention will appear from the following detailed description taken in connection with the accompanying drawings of a preferred embodiment.
Referring first to
The end portion of the hose 24 opposite the fitting 28 is extended outwardly of the space 22 through a side opening 42, for connection to the outlet of a macerator M, the input I of which leads through a large diameter waste discharge tube T to a sewage storage tank S or tanks of the RV or other vehicle, in manner well known in the art.
The rearward end of the yolk member 46 anchors one end of an elongated flexible cord 48 which extends from the yolk member over a guide pulley 50 and thence forwardly under the bottom wall 12 to a rotary pulley 52 of a source of rotary power. For purposes of illustration herein, the power source is a spring-loaded pull cord unit 54 similar to those typically employed for starting small gasoline engines used for lawn mowers, outboard engines and many other applications.
The operation of the sewage disposal system of this invention is the same for all embodiments. The front door 34 is opened, the fitting 28 is grasped in the hand and the small diameter hose 24 is pulled outwardly of the compartment storage space 22. It moves freely outward because of the confined vertical dimension of the space 22.
In the embodiment of
Sewage is removed from the storage tanks S in the vehicle, when the fitting 28 is secured to the disposal pipe at the sewage disposal station, by opening the valve 30 and operating the macerator. The sewage is discharged from the storage tank in the vehicle and subjected to maceration and thereafter forcibly discharged to the disposal pipe. As is well known, gray water in a gray water storage tank (not shown) may be delivered to a black water storage tank S for cleaning the latter, after which the gray water is delivered through the macerator and outlet hose 24 to effect thorough cleaning. The control valve 30 then is closed and the hose 24 returned to the storage space 22, without anyone having been in contact with any sewage.
In the operation of the embodiment of
In the operation of the embodiment of
It is to be noted that in both embodiments of
It will be apparent to those skilled in the art that various modifications and changes may be made in the size, shape, type, and number of components described hereinbefore without departing from the spirit of this invention and the scope of the appended claims.