Sewage treatment apparatus

Assignee: Individual

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Filing: 1975-01-06

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Granted: 1980-09-23

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Expires: 1995-01-06

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Abstract

Abstract Sewage flows through an inflow pipe into a receiver. Large solids are trapped in the receiver, and dissolved and suspended materials pass with the waste water through apertures in the receiver wall. A lower portion of the receiver has a solid wall to trap fine heavy grits. The receiver is held suspended from a lower opening in an upward opening holder. When the receiver is full of solids, waste water flows through larger apertures in the holder. A cover of the holder is removed, and the receiver is withdrawn through an upper opening in the holder by a handle which extends from the receiver to the upward opening. One holder and receiver are mounted directly within a closed self-contained underground tank. Several tanks are coupled in parallel or series. The tanks are provided with aeration devices in a main portion and have a partition which forms a chlorifying portion with a sludge return at the bottom of the partition and a skimmer return at the top of the partition. Multiple tanks are arranged in a parallel or series. Outflow of the tanks is cascaded in an enclosure and is dispersed in injection wells. De-watering systems remove sludge from the bottom of the tank and return sludge to the inflow for further treatment. The entire self-contained system is located beneath the parking lot adjacent a multiple dwelling unit.

Inventors

👤 George A. Milne

Bibliographic Details

Application Number —

Jurisdiction US

Data Source google_patents

Last Synchronized 2026-11-07 16:36

CPC Classifications

C; C02; C02F; C02F3/00; C02F3/02; C02F3/12; C02F3/1236; C02F3/1252; C02F3/1242; Y; Y02; Y02W; Y02W10/00; Y02W10/10

Claims Analysis

Total Claims: 4

Claim 1

Independent Claim 354 words

Self-contained closed aerobic sewage treatment apparatus having a closed tank with a cylindrical wall positioned around a generally horizontal axis, and with first and second end walls joining the cylindrical wall in completion of the closed tank, pipe means connected inside a bottom of the tank for introducing air into the bottom of the tank, a sewage inflow opening in the first end wall and an effluent outflow opening in the second end, and further having sewage inflow means connected to the inflow opening and outflow means connected to the effluent outflow opening, and wherein the inflow means further comprises an inflow pipe, a holder means connected to the inflow pipe, and positioned within a chamber and having a downward opening and an inward extending rim, about the opening a receiver means connected to the holder means and mounted on the rim, the receiver means defining an outer foraminous wall extending upward from a lower imperforate wall and bottom and a handle connected to the receiver means and extending through the opening, whereby the receiver means is removed from the chamber and the holder via the opening for emptying the receiver means, further comprising a chamber configured for supporting the holder means, and wherein the sewage inflow pipe flows in through an opening in the chamber into the holder means, wherein the receiver means is supported by the holder means in dependent relationship, and wherein the receiver means foraminous wall portion extends downward from the holder means for flowing sewage out of the holder means and receiver means through the foraminous wall portion, and for retaining solids within the receiver means, and further comprising a connection pipe connecting the chamber to the inflow opening of the closed tank, wherein the chamber further comprises a plurality of connection pipes extending outward from a bottom of the chamber to a like plurality of closed tanks, wherein a bottom wall of the chamber is grooved and wherein grooves lead outward from a central portion of the bottom wall to opening partially formed by a side wall of the chamber, and partially formed by the bottom wall grooves.

Claim 2

Dependent Claim 354 words

Claim 3

Dependent Claim 396 words

Self-contained closed aerobic sewage treatment apparatus having a closed tank with a cylindrical wall positioned around a generally horizontal axis, and with first and second end walls joining the cylindrical wall in completion of the closed tank, pipe means connected inside a bottom of the tank for introducing air into the bottom of the tank, a sewage inflow opening in the first end wall and an effluent outflow opening in the second end, and further having sewage inflow means connected to the inflow opening and outflow means connected to the effluent outflow opening, and wherein the inflow means further comprises an inflow pipe, a holder means connected to the inflow pipe, and positioned within a chamber and having a downward opening and an inward extending rim, about the opening a receiver means connected to the holder means and mounted on the rim, the receiver means defining an outer foraminous wall extending upward from a lower imperforate wall and bottom and a handle connected to the receiver means and extending through the opening, whereby the receiver means is removed from the chamber and the holder via the opening for emptying the receiver means, further comprising a chamber configured for supporting the holder means, and wherein the sewage inflow pipe flows in through an opening in the chamber into the holder means, wherein the receiver means is supported by the holder means in dependent relationship, and wherein the receiver means foraminous wall portion extends downward from the holder means for flowing sewage out of the holder means and receiver means through the foraminous wall portion, and for retaining solids within the receiver means, and further comprising a connection pipe connecting the chamber to the inflow opening of the closed tank, wherein the chamber further comprises a de-watering inlet, and wherein the apparatus further comprises a de-watering pipe connected to the de-watering inlet, pump means connected to the de-watering pipe for flowing sewage into the chamber through the de-watering inlet, and de-watering suction means connected to an opening at the bottom of the closed tank, check valve means connected to the suction means, and a suction pipe connected to the check valve means and to the pump means, whereby the pump means draws sewage from the tank via the suction means, the check valve means and the suction pipe, and passes sewage through the de-watering inlet into the chamber.

Claim 4

Dependent Claim 396 words

Self-contained closed aerobic sewage treatment apparatus having a closed tank with a cylindrical wall positioned around a generally horizontal axis, and with first and second end walls joining the cylindrical wall in completion of the closed tank, pipe means connected inside a bottom of the tank for introducing air into the bottom of the tank, a sewage inflow opening in the first end wall and an effluent outflow opening in the second end, and further having sewage inflow means connected to the inflow opening and outflow means connected to the effluent outflow opening, and wherein the inflow means further comprises an inflow pipe, a holder means connected to the inflow pipe, and positioned within a chamber and having a downward opening and an inward extending rim, about the opening a receiver means connected to the holder means and mounted on the rim, the receiver means defining an outer foraminous wall extending upward from a lower imperforate wall and bottom and a handle connected to the receiver means and extending through the opening, whereby the receiver means is removed from the chamber and the holder via the opening for emptying the receiver means, further comprising a chamber configured for supporting the holder means, and wherein the sewage inflow pipe flows in through an opening in the chamber into the holder means, wherein the receiver means is supported by the holder means in dependent relationship, and wherein the receiver means foraminous wall portion extends downward from the holder means for flowing sewage out of the holder means and receiver means through the foraminous wall portion, and for retaining solids within the receiver means, and further comprising a connection pipe connecting the chamber to the inflow opening of the closed tank, wherein the chamber further comprises a de-watering inlet, and wherein the apparatus further comprises a de-watering pipe connected to the de-watering inlet, pump means connected to the de-watering pipe for flowing sewage into the chamber through the de-watering inlet, and de-watering suction means connected to an opening at the bottom of the closed tank, check valve means connected to the suction means, and a suction pipe connected to the check valve means and to the pump means, whereby the pump means draws sewage from the tank via the suction means, the check valve means and the suction pipe, and passes sewage through the de-watering inlet into the chamber.

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USPTO Annuity & Maintenance Windows

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1983-09-23	1984-03-24	1984-09-23	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1987-09-23	1988-03-24	1988-09-23	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1991-09-23	1992-03-24	1992-09-23	$7700.00	Window Closed / Lapsed

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