US3706319A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for evacuating septic tanks or the like
Assignee: Individual
•
Filing: 1971-01-27
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Granted: 1972-12-19
•
Expires: 1991-01-27
Abstract
Abstract A portable apparatus for evacuating the liquid sewage from holding tanks, septic tanks and the like having a sewage tank which is mounted on a support frame which includes a transport arrangement, e.g., A WHEELED VEHICLE. The sewage tank is provided with a discharge opening, which is normally closed by means of a valve, at the lower end thereof and a sewage inlet at the upper end thereof to which is removably connected a length of flexible hose. A vertically oriented cylindrical housing is mounted on the upper surface of the sewage tank and an electrically powered vacuum or suction pump is removably mounted on the upper end of the housing so that upon actuation of the pump the air in the sewage tank can be withdrawn via the housing. To protect the pump from the sewage and to trap the fumes, a filter is removably mounted in the cylindrical housing. The sewage tank is also provided with a sewage level detecting device, e.g., a float and a switch responsive thereto, for de-energizing the pump when the level of sewage in the tank has reached a predetermined level indicating the tank is essentially full. Preferably, a gasoline engine driven electrical generator is provided on the frame in order to supply power to the pump.
Inventors
- 👤 John W Neese
- 👤 James E Gaylor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 00:30
CPC Classifications
E; E03; E03F; E03F7/00; E03F7/10; Y; Y10; Y10T; Y10T137/00; Y10T137/2931; Y10T137/3109
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
325 words
A portable apparatus for evacuating septic tanks or the like comprising in combination: a support frame including means for transporting same; a substantially spherically shaped sewage tank for accumulating the sewage to be removed from the septic tank or the like mounted on said frame; a vertically oriented cylindrical housing mounted on the upper most portion of the upper surface of said sewage tank, said housing having a diameter which is substantially less than that of said tank and having its lower end in communication with the interior of said sewage tank; electrically powered suction producing means removably mounted on the upper end of said cylindrical housing for withdrawing the air in said sewage tank via said cylindrical housing; a filter means removably mounted within said cylindrical housing for preventing the sewage from being drawn into said suction producing means and for trapping the odors therefrom; inlet means for said sewage tank at the upper end thereof; a length of flexible hose having one end connected to said inlet means and its other end adapted to be placed in communication with the interior of the septic tank or the like which is to be evacuated, whereby upon actuation of said suction producing means the suction created thereby will cause the sewage in the septic tank to be evacuated to be drawn via said flexible hose into said sewage tank; means mounted within said sewage tank and responsive to the level of the sewage therein for disrupting the electrical power to said suction producing means when a predetermined level of sewage in said sewage tank, which level is below said inlet means, has been attained; and an outlet means, including a normally closed outlet valve, for said sewage tank, said outlet means being in communication with the interior of said sewage tank at the lower portion thereof to provide for thE gravitational discharge of the contents of said sewage tank when said outlet valve is opened.
Claim 2
Dependent Claim
325 words
A portable apparatus for evacuating septic tanks or the like comprising in combination: a support frame including means for transporting same; a substantially spherically shaped sewage tank for accumulating the sewage to be removed from the septic tank or the like mounted on said frame; a vertically oriented cylindrical housing mounted on the upper most portion of the upper surface of said sewage tank, said housing having a diameter which is substantially less than that of said tank and having its lower end in communication with the interior of said sewage tank; electrically powered suction producing means removably mounted on the upper end of said cylindrical housing for withdrawing the air in said sewage tank via said cylindrical housing; a filter means removably mounted within said cylindrical housing for preventing the sewage from being drawn into said suction producing means and for trapping the odors therefrom; inlet means for said sewage tank at the upper end thereof; a length of flexible hose having one end connected to said inlet means and its other end adapted to be placed in communication with the interior of the septic tank or the like which is to be evacuated, whereby upon actuation of said suction producing means the suction created thereby will cause the sewage in the septic tank to be evacuated to be drawn via said flexible hose into said sewage tank; means mounted within said sewage tank and responsive to the level of the sewage therein for disrupting the electrical power to said suction producing means when a predetermined level of sewage in said sewage tank, which level is below said inlet means, has been attained; and an outlet means, including a normally closed outlet valve, for said sewage tank, said outlet means being in communication with the interior of said sewage tank at the lower portion thereof to provide for thE gravitational discharge of the contents of said sewage tank when said outlet valve is opened.
Claim 3
Dependent Claim
15 words
The apparatus as defined in claim 1 wherein said transport means includes a wheeled vehicle.
Claim 4
Dependent Claim
29 words
The apparatus as defined in claim 1 including an upwardly extending exhaust air pipe connected to the outlet side of said suction producing means and opening into the atmosphere.
Claim 5
Dependent Claim
20 words
The apparatus as defined in claim 3 wherein said upwardly extending exhaust air pipe is provided with a telescoping extension.
Claim 6
Dependent Claim
95 words
The apparatus as defined in claim 3 wherein said transport means comprises means for providing an air cushion beneath the base of said frame for supporting said apparatus, said air cushion means including air conduit means having one end opening into said exhaust air pipe and its other end opening beneath said base, and a valve means connected in said exhaust air pipe for causing the exhaust air from said suction producing means to be directed only through said air conduit means when said valve means is closed in order to provide said air cushion.
Claim 7
Dependent Claim
26 words
The apparatus as defined in claim 2 including a gasoline driven electrical generator mounted on said frame for supplying electrical power to said suction providing means.
Claim 8
Dependent Claim
60 words
The apparatus as defined in claim 6 wherein said means responsive to the level of the sewage in said sewage tank includes a float member and an electrical switch responsive to the movement of said float member for opening the power circuit between said electrical generator and said suction producing means when said predetermined level of sewage has been attained.
Claim 9
Dependent Claim
48 words
The apparatus as defined in claim 7 wherein said float member is provided with an upwardly extending rod which is mounted within said cylindrical housing for vertical travel along the axis thereof and wherein said electrical switch is a microswitch mounted within said cylindrical housing above said rod.
Claim 10
Dependent Claim
27 words
The apparatus as defined in claim 7 wherein said sewage tank is formed of plastic and fiberglass and the interior and exterior surfaces thereof are gel coated.
Claim 11
Dependent Claim
45 words
The apparatus as defined in claim 8 wherein said filter means has an axial bore, said upwardly extending rod extends through said axial bore, and a retaining means attached to the upper end of said rod for preventing same from passing through said axial bore.
Claim 12
Dependent Claim
286 words
A portable suction cleaning apparatus comprising in combination: a support frame including means for transporting same; a substantially spherically shaped storage tank mounted on said frame for accumulating the material to be removed during the cleaning; a vertically oriented cylindrical housing mounted on the upper most portion of the upper surface of said tank, said housing having a diameter which is substantially less than that of said tank and having its lower end in communication with the interior of said tank; electrically powered suction producing means removably mounted on the upper end of said cylindrical housing for with-drawing the air in said tank via said cylindrical housing; a filter means removably mounted within said cylindrical housing for preventing the material drawn into said tank from being drawn into said suction producing means and for trapping any odors therefrom; inlet means for said tank at the upper end thereof; a length of flexible hose having one end connected to said inlet means, whereby upon actuation of said suction producing means the suction created thereby will cause the material to be removed by the cleaning action to be drawn via said flexible hose into said tank; means mounted within said tank and responsive to the level of the material therein for disrupting the electrical power to said suction producing means when a predetermined level of material in said sewage tank, which level is below said inlet means, has been attained; and an outlet means, including a normally closed outlet valve, for said tank, said outlet means being in communication with the interioR of said tank at the lowest portion thereof to provide for the gravitational discharge of the contents of said tank when said outlet valve is opened.
Claim 13
Dependent Claim
286 words
A portable suction cleaning apparatus comprising in combination: a support frame including means for transporting same; a substantially spherically shaped storage tank mounted on said frame for accumulating the material to be removed during the cleaning; a vertically oriented cylindrical housing mounted on the upper most portion of the upper surface of said tank, said housing having a diameter which is substantially less than that of said tank and having its lower end in communication with the interior of said tank; electrically powered suction producing means removably mounted on the upper end of said cylindrical housing for with-drawing the air in said tank via said cylindrical housing; a filter means removably mounted within said cylindrical housing for preventing the material drawn into said tank from being drawn into said suction producing means and for trapping any odors therefrom; inlet means for said tank at the upper end thereof; a length of flexible hose having one end connected to said inlet means, whereby upon actuation of said suction producing means the suction created thereby will cause the material to be removed by the cleaning action to be drawn via said flexible hose into said tank; means mounted within said tank and responsive to the level of the material therein for disrupting the electrical power to said suction producing means when a predetermined level of material in said sewage tank, which level is below said inlet means, has been attained; and an outlet means, including a normally closed outlet valve, for said tank, said outlet means being in communication with the interioR of said tank at the lowest portion thereof to provide for the gravitational discharge of the contents of said tank when said outlet valve is opened.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-12-19 | 1976-06-19 | 1976-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-12-19 | 1980-06-19 | 1980-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-12-19 | 1984-06-19 | 1984-12-19 | $7700.00 | Window Closed / Lapsed |