US3426903A - Septic tanks - Google Patents

Septic tanks Download PDF

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US3426903A
US3426903A US3426903DA US3426903A US 3426903 A US3426903 A US 3426903A US 3426903D A US3426903D A US 3426903DA US 3426903 A US3426903 A US 3426903A
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tank
section
sections
cylindrical
sleeve
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Ray Olecko
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Structural Glass Ltd
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Structural Glass Ltd
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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/28Anaerobic digestion processes

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  • Such septic tanks are nonmally manufactured from concrete or steel, both of which suffer from several disadvantages.
  • the present device overcomes all of these disadvantages iirstly, because it is manufactured from laminated fibreglass and secondly, because it is designed primarily so that all of the parts nest within one another thus reducing the volume of space required for shipping. This, together with the relatively light weight of the device permits the tank parts to be shipped relatively cheaply and to be assembled rapidly and easily, ready for placement within the excavation.
  • Another important object of the invention is to provide a tank of the character herewithin described in which the capacity can be increased by the insertion of cylindrical sections between the main tank ends thus enabling the same moulds to be used for many sizes of tank.
  • Another object of the invention is to provide a device of the character herewithin described which is simple in construction, economical in manufacture, and otherwise well suited to the purpose rfor which it is designed.
  • the present invention consists of the inventive concept embodied in the method, process, construction, arrangement of parts, or new use of the same, as herein particularly exemplified in one or more specific embodiments of such concept, referenec Ibeing had to the accompanying gures in which:
  • FIGURE 1 is a longitudinal cross-sectional view of one embodiment of my invention shown in the assembled position.
  • FIGURE? is a cross-sectional view of the entire assembly shown in the nesting or packaged position.
  • FIGURE 3 is a fragmentary cross-sectional view substantially lalong the line 3-3 of FIGURE 1.
  • FIGURE 4 is a side elevation showing one other embodiment of the device.
  • FIGURE 5 is a view similar to FIGURE 4, but showing a further embodiment thereof.
  • FIGURE 6 is an isometric view of one embodiment of the assembled tank.
  • FIGURE 7 is a cross sectional view of a tank utilizing a syphon.
  • FIGURE 8 is a cross sectional view lof a tank utilizing the overflow system.
  • 10 and 11 illustrate a pair of tank body sections which are substantially cylindrical or frustoeconical in shape, each having a closed end 12 and an open end 13.
  • the walls 14 of these sections decrease in diameter from the 'open end 13 towards the closed ends 12 for the purpose of providing nesting relationship of the section 10 within the section 11 during storage and transportation of the -unit and prior to assembly. rllhe nesting relationship of these two portions is shown clearly in FIGURE 2. It should be noted that the diameter of section 11 is slightly greater than the 'diameter of section 10 thus facilitating the nesting relationship one within the other.
  • the open ends 13 of the sections 10 and 11 Iare provided with radially extending perimetrical flanges 15 which, when the two sections are assembled as shown in FIGURE 4, are in interfacial relationship with a sealing gasket 16 therebetween, bolts 17 bolting the two sections together as clearly shown in the drawings.
  • These sections are preferably manufactured from laminated ibreglass being laid out on moulds in the conventional manner thus providing a lightweight, yet relatively strong and rigid structure.
  • An inlet 18 is provided within the closed end 12 of the tank section 11 and a semi-cylindrical baille 19, also manufactured from laminated libre glass, is provided around the inlet on the inside of the section 11 to prevent back-up of sewage into the inlet.
  • the baille is detachable to permit the aforementioned nesting section 10 within section 11 and details of the detachability are shown in FIGURE 3.
  • the baille is provided with edge flanges 20 extending outwardly therefrom, said ilanges engaging within guides formed by angulated portions 21 secured to the inner wall 22 of the tank upon each side of the inlet opening 18.
  • the semi-cylindrical baille 19, being made of laminated ilbreglass is flexible to the extent that it can be llexed inwardly so that the flanges 20 engage within the guides whereupon release of the baille causes the resilience of the baille to ilex outwardly to its original position and to -be maintained in the guides.
  • the section 10 is provided with a divider or partition 23 spanning the interior of this section and extending from adjacent the securing end 13 diagonally downwardly to adjacent the closed end 12 as clearly shown in FIGURE 1.
  • This baille is also made of laminated dlberglass and is built integrally with the tank section 10. This baille divides the assembly tank into a sludge compartment 24 -and a discharge compartment 25. By sloping the divider 23, the capacity of the sludge compartment 24 is increased without increasing the overa-.ll dimensions of the tank.
  • a semi-cylindrical baflle 27 is secured over an aperture 26 in the partition 23, said baille being open at the lower end 23 thereof and the fluid level 29 is controlled by the position of this aperture 26 in the conventional manner.
  • a manhole 30 is provided in the upper wall of the tank section 10 between the point of securement of the divider 3 23 and the closed end.
  • This tank is designed for relatively deep location within the soil and a hose (not illustrated) extends through aperture 34' Within the manhole sleeve and into the compartment 25.
  • This hose is connected to a pump in the usual manner for discharge into the septic field.
  • a manhole sleeve 32 of tapered cylindrical conguration is provided with a ilange 33 bonded to the sleeve around the lbase thereof which rests upon the wall of the tank section and surrounds the manhole 30. This flange may be sealed to the wall during installation.
  • the manhole sleeve 32 is provided in two sections, a lower section 34 and an upper section 35, both sections being of -tapered cylindrical configuration so that they slide one within the other in a telescopic manner thus permitting the overall length of the manhole sleeve to be adjustable within limits depending upon the depth at which the tank is situated.
  • a lid 36 covers the upper end of the manhole sleeve and this is, of course, at or just above ground level. It is normal, on installations of this type, for the ground to subside after some time has elapsed and in this connection the upper portion of the sleeve slides downwardly over the lower portion so that the upper end of the Imanhole sleeve is maintained at ground level rather than extending above the ground as is usual with normal installations.
  • the manhole and the lid are also manufactured from laminated breglass in a manner similar to the other components.
  • the aforementioned divider 23 is provided with a depressed or curved area 37 as shown in FIG. 1 and this area is provided to receive the collapsed telescopic manhole sleeve 32 when in the stored position as shown in FIG. 2, the sleeve resting within the curved portion as clearly shown.
  • each cylindrical section having radially extending perimetrical flanges 39 formed on each end thereof and if one section is utilized as shown in FIGURE 1, then the flanges upon each end mate with the anges of the tank section 10 and 11 and may be bolted thereto to form a tank as shown in FIG. 1. Additionally cylindrical sections may be inserted to increase the capacity of the tank and in FIG. 5, two sections are illustrated in the assembled position.
  • the tank sections 10 and 11 when nested' together as shown in FIG. 2, may in turn be nested within one cylindrical section 38 as also shown in FIG. 2 thus making a compact package for shipping and storage purposes.
  • Handles 40 are provided upon the outer Walls of the closed ends 12 of the tank sections 10 and' 11, said handles being recessed as clearly illustrated to assist in the nesting characteristics of the assembly. These handles permit two men to move the assembled tank into the desired position and due to the light weight of the assembly, this is readily accomplished.
  • the assembly Due to the fact that the entire assembly is manufactured from laminated libre glass, the assembly is not open to attack from moisture or sewage and', due to the light weight and nesting capabilities thereof, is readily transported or stored in the minimum of space.
  • attaching anges 1S and 39 also provide rigidity to the assembled tank, an essential feature with structures of this nature manufactured from fibre glass.
  • FIGURE 7 shows a tank utilizing a syphon 31. Note should also be made of the outlet aperture 31' which extends inwardly slightly and is provided with tapered walls.
  • the outlet pipe 31" is provided with a tapered end Which tits into this tapered outlet. This is in contrast to the conventional tanks in which the outlet extends beyond the outer wall of the tank.
  • the present arrangement facilitates the aforementioned nesting arrangement for storage and transportation.
  • the divider 23' is planar in this embodiment to provide for the syphon 31.
  • FIGURE 8 shows the tank designed for normal overcow operation in Which the divider 23 is not utilized.
  • the outlet 41 is formed within section 10 and is slightly lower than the inlet 18.
  • the walls 42 of the outlet extend inwardly into the tank and are curved towards the end 43, the lip 44 controlling the outlet level.
  • a knock-down septic tank structure comprising in combination, rst and second substantially frusto-conical tank body sections each having an open major end and a closed minor end, the second section being of a smaller diameter than the first section whereby the second section may be nested within the rst section prior to assembly of the tank, an outturned marginal bolting ange provided at the open major end of each section whereby the sections may be bolted together in complemental relation to form a tank, the rst tank section being provided with an inlet, a removable inlet baffle attached to the inside of said lirst tank section around said inlet, a partition provided integrally in the second tank section in a plane between the open and closed ends of the second tank section and dening la discharge compartment in the closed end portion of the second tank section, said partition having an opening communicating with said compartment, the top of the second tank section being formed with a manhole in communication with said discharge compartment, and a separate manhole sleeve connectable to said second tank section in register with said

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  • Life Sciences & Earth Sciences (AREA)
  • Microbiology (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Treatment Of Biological Wastes In General (AREA)

Description

R. OLECKO SEPTIC TANKS Feb. 11, 1969 Sheet Filed sept. 12, 1966 WWA/7a2 RAY OLECKO United States Patent O 3,426,903 SEPTIC TANKS Ray Olecko, Winnipeg, Manitoba, Canada, assignor to Structural Glass Limited, Winnipeg, Manitoba, Canada Filed Sept. 12, 1966, Ser. No. 578,784 U.S. Cl. 210-232 Int. Cl. B01d 43/00 2 'Claims ABSTRACT OF THE DISCLOSURE This invention relates to new and useful improvements in septic tanks, particularly septic tanks designed to be placed underground for the treatment of sewage to the discharge thereof, to a septic field or the like.
Such septic tanks are nonmally manufactured from concrete or steel, both of which suffer from several disadvantages.
Conventional septic tanks deteriorate under the action of moisture and the like and also are extremely bulky and heavy and therefore are difficult to transport. Furthermore, equipment is normally required to place same within the excavation d-ue to the weight of the tanks.
The present device overcomes all of these disadvantages iirstly, because it is manufactured from laminated fibreglass and secondly, because it is designed primarily so that all of the parts nest within one another thus reducing the volume of space required for shipping. This, together with the relatively light weight of the device permits the tank parts to be shipped relatively cheaply and to be assembled rapidly and easily, ready for placement within the excavation.
I accomplish this by forming the tank in two lmain sections roughly cylindrical in shape with the walls tapering towards one end and one section is made slightly smaller than the other so that this one section will nest within the other.
Another important object of the invention is to provide a tank of the character herewithin described in which the capacity can be increased by the insertion of cylindrical sections between the main tank ends thus enabling the same moulds to be used for many sizes of tank.
Another object of the invention is to provide a device of the character herewithin described which is simple in construction, economical in manufacture, and otherwise well suited to the purpose rfor which it is designed.
With the foregoing in View, and all those objects, purposes or advantages which may become apparent from consideration of this disclosure and specification, the present invention consists of the inventive concept embodied in the method, process, construction, arrangement of parts, or new use of the same, as herein particularly exemplified in one or more specific embodiments of such concept, referenec Ibeing had to the accompanying gures in which:
FIGURE 1 is a longitudinal cross-sectional view of one embodiment of my invention shown in the assembled position.
FIGURE?. is a cross-sectional view of the entire assembly shown in the nesting or packaged position.
ice
FIGURE 3 is a fragmentary cross-sectional view substantially lalong the line 3-3 of FIGURE 1.
FIGURE 4 is a side elevation showing one other embodiment of the device.
FIGURE 5 is a view similar to FIGURE 4, but showing a further embodiment thereof.
FIGURE 6 is an isometric view of one embodiment of the assembled tank.
FIGURE 7 is a cross sectional view of a tank utilizing a syphon.
FIGURE 8 is a cross sectional view lof a tank utilizing the overflow system.
In the drawings like characters of reference indicate corresponding parts in the `diilerent figures.
Proceeding therefore to describe the invention in detail, reference should be made to the accompanying drawings in which 10 and 11 illustrate a pair of tank body sections which are substantially cylindrical or frustoeconical in shape, each having a closed end 12 and an open end 13. The walls 14 of these sections decrease in diameter from the 'open end 13 towards the closed ends 12 for the purpose of providing nesting relationship of the section 10 within the section 11 during storage and transportation of the -unit and prior to assembly. rllhe nesting relationship of these two portions is shown clearly in FIGURE 2. It should be noted that the diameter of section 11 is slightly greater than the 'diameter of section 10 thus facilitating the nesting relationship one within the other.
The open ends 13 of the sections 10 and 11 Iare provided with radially extending perimetrical flanges 15 which, when the two sections are assembled as shown in FIGURE 4, are in interfacial relationship with a sealing gasket 16 therebetween, bolts 17 bolting the two sections together as clearly shown in the drawings.
These sections are preferably manufactured from laminated ibreglass being laid out on moulds in the conventional manner thus providing a lightweight, yet relatively strong and rigid structure.
An inlet 18 is provided within the closed end 12 of the tank section 11 and a semi-cylindrical baille 19, also manufactured from laminated libre glass, is provided around the inlet on the inside of the section 11 to prevent back-up of sewage into the inlet.
The baille is detachable to permit the aforementioned nesting section 10 within section 11 and details of the detachability are shown in FIGURE 3. The baille is provided with edge flanges 20 extending outwardly therefrom, said ilanges engaging within guides formed by angulated portions 21 secured to the inner wall 22 of the tank upon each side of the inlet opening 18. The semi-cylindrical baille 19, being made of laminated ilbreglass is flexible to the extent that it can be llexed inwardly so that the flanges 20 engage within the guides whereupon release of the baille causes the resilience of the baille to ilex outwardly to its original position and to -be maintained in the guides.
The section 10 is provided with a divider or partition 23 spanning the interior of this section and extending from adjacent the securing end 13 diagonally downwardly to adjacent the closed end 12 as clearly shown in FIGURE 1. This baille is also made of laminated dlberglass and is built integrally with the tank section 10. This baille divides the assembly tank into a sludge compartment 24 -and a discharge compartment 25. By sloping the divider 23, the capacity of the sludge compartment 24 is increased without increasing the overa-.ll dimensions of the tank.
A semi-cylindrical baflle 27 is secured over an aperture 26 in the partition 23, said baille being open at the lower end 23 thereof and the fluid level 29 is controlled by the position of this aperture 26 in the conventional manner.
A manhole 30 is provided in the upper wall of the tank section 10 between the point of securement of the divider 3 23 and the closed end. This tank is designed for relatively deep location within the soil and a hose (not illustrated) extends through aperture 34' Within the manhole sleeve and into the compartment 25. This hose is connected to a pump in the usual manner for discharge into the septic field.
A manhole sleeve 32 of tapered cylindrical conguration is provided with a ilange 33 bonded to the sleeve around the lbase thereof which rests upon the wall of the tank section and surrounds the manhole 30. This flange may be sealed to the wall during installation.
The manhole sleeve 32 is provided in two sections, a lower section 34 and an upper section 35, both sections being of -tapered cylindrical configuration so that they slide one within the other in a telescopic manner thus permitting the overall length of the manhole sleeve to be adjustable within limits depending upon the depth at which the tank is situated. A lid 36 covers the upper end of the manhole sleeve and this is, of course, at or just above ground level. It is normal, on installations of this type, for the ground to subside after some time has elapsed and in this connection the upper portion of the sleeve slides downwardly over the lower portion so that the upper end of the Imanhole sleeve is maintained at ground level rather than extending above the ground as is usual with normal installations.
The manhole and the lid are also manufactured from laminated breglass in a manner similar to the other components.
It will be noted that the aforementioned divider 23 is provided with a depressed or curved area 37 as shown in FIG. 1 and this area is provided to receive the collapsed telescopic manhole sleeve 32 when in the stored position as shown in FIG. 2, the sleeve resting within the curved portion as clearly shown.
Of particular importance in the present invention is the method of providing tanks of varying capacities utilizing the same tank sections 10 and 11. I provide one or more cylindrical sections 38, each cylindrical section having radially extending perimetrical flanges 39 formed on each end thereof and if one section is utilized as shown in FIGURE 1, then the flanges upon each end mate with the anges of the tank section 10 and 11 and may be bolted thereto to form a tank as shown in FIG. 1. Additionally cylindrical sections may be inserted to increase the capacity of the tank and in FIG. 5, two sections are illustrated in the assembled position.
The tank sections 10 and 11, when nested' together as shown in FIG. 2, may in turn be nested within one cylindrical section 38 as also shown in FIG. 2 thus making a compact package for shipping and storage purposes.
1f two cylindrical sections are utilized then these are placed one on top of the other and the tank sections 10 and 11 nested within one of these sections.
Handles 40 are provided upon the outer Walls of the closed ends 12 of the tank sections 10 and' 11, said handles being recessed as clearly illustrated to assist in the nesting characteristics of the assembly. These handles permit two men to move the assembled tank into the desired position and due to the light weight of the assembly, this is readily accomplished.
Due to the fact that the entire assembly is manufactured from laminated libre glass, the assembly is not open to attack from moisture or sewage and', due to the light weight and nesting capabilities thereof, is readily transported or stored in the minimum of space.
It should be noted that the attaching anges 1S and 39 also provide rigidity to the assembled tank, an essential feature with structures of this nature manufactured from fibre glass.
FIGURE 7 shows a tank utilizing a syphon 31. Note should also be made of the outlet aperture 31' which extends inwardly slightly and is provided with tapered walls. The outlet pipe 31" is provided with a tapered end Which tits into this tapered outlet. This is in contrast to the conventional tanks in which the outlet extends beyond the outer wall of the tank. The present arrangement facilitates the aforementioned nesting arrangement for storage and transportation.
It should also be noted that the divider 23' is planar in this embodiment to provide for the syphon 31.
FIGURE 8 shows the tank designed for normal overcow operation in Which the divider 23 is not utilized.
The outlet 41 is formed within section 10 and is slightly lower than the inlet 18. The walls 42 of the outlet extend inwardly into the tank and are curved towards the end 43, the lip 44 controlling the outlet level.
Various modifications can be made within the scope of the inventive concept disclosed. Accordingly, it is intended that what is described herein should be regarded as illustrative of such concept and not for the purpose of limiting protection to any particular embodiment thereof, but that only such limitations should be placed upon the scope of protection to which the inventor hereof is entitled, as justice dictates.
What is claimed to be the present invention is:
1. A knock-down septic tank structure comprising in combination, rst and second substantially frusto-conical tank body sections each having an open major end and a closed minor end, the second section being of a smaller diameter than the first section whereby the second section may be nested within the rst section prior to assembly of the tank, an outturned marginal bolting ange provided at the open major end of each section whereby the sections may be bolted together in complemental relation to form a tank, the rst tank section being provided with an inlet, a removable inlet baffle attached to the inside of said lirst tank section around said inlet, a partition provided integrally in the second tank section in a plane between the open and closed ends of the second tank section and dening la discharge compartment in the closed end portion of the second tank section, said partition having an opening communicating with said compartment, the top of the second tank section being formed with a manhole in communication with said discharge compartment, and a separate manhole sleeve connectable to said second tank section in register with said manhole, said sleeve consisting of a plurality of separably telescoped sleeve members which, together with said inlet baffle, may be stored on said partition of said second tank section in the knocked-down condition of the tank.
2. The device as defined in claim 1 together with at least one additional tank body section of a cylindrical form, said additional section being open-ended and provided at both its ends with outturned marginal bolting anges for insertion between and assembly to said first and second tank body sections in complemental relation thereto, said additional section being of such diameter as to facilitate nesting of the trst and second tanks sections therein prior to assembly of the tank.
References Cited UNITED STATES PATENTS 704,244 7/1902 Davis 210-520 X 1,016,241 1/1912 Blount 210-237 X 1,134,525 4/1915 Gallagher 206-65 1,719,418 7/1929 Bennett et al. 210-532 2,213,458 9/ 1940 Buckley 210--5 32 2,422,555 6/1947 Karlson et al. 210-519 2,471,296 5/ 1949 Allen et al 206-65 X REUBEN FRIEDMAN, Primary Examiner.
JOHN ADEE, Assistant Examiner.
U.S. Cl. XR.
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Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3642138A (en) * 1970-08-12 1972-02-15 Raymond F Sheda Filtering tanks for waste disposal systems
US3947357A (en) * 1974-04-26 1976-03-30 The Apollo-Dynamic Corporation Limited Organic waste disposal device
US3998737A (en) * 1975-04-25 1976-12-21 Caterpillar Tractor Co. Filter arrangement with split hydraulic tank
US4134833A (en) * 1977-09-29 1979-01-16 Mccormick Dennis J Water recycle unit-grey water clearifier
US4345998A (en) * 1979-07-05 1982-08-24 Graffis Kelly R Plastic catch basin
US4697609A (en) * 1985-01-09 1987-10-06 Helmut Salewski Holding tank for waste fluids and process for disposing of waste fluids from recreational vehicles
US4772389A (en) * 1987-07-21 1988-09-20 Denis Guibault Pipe and its retainer in a tank
US4824287A (en) * 1988-02-19 1989-04-25 Tracy Lawrence M Septic system
US4959145A (en) * 1989-11-13 1990-09-25 Tuf-Tite, Inc. Gas baffle device for on-site waste disposal systems
US4961670A (en) * 1989-03-27 1990-10-09 Bonar Inc. Molded septic tank
US5087151A (en) * 1989-01-30 1992-02-11 Ditullio Robert J Drainage system
US5101849A (en) * 1990-10-23 1992-04-07 Richard James G Baffle for a sewage tank and method of installation
US5544460A (en) * 1994-03-31 1996-08-13 Janice Faye Fife Multi-component fluid tank
US5779896A (en) * 1996-08-13 1998-07-14 Nurse, Jr.; Harry L. Gas baffle for a waste water treatment plant effluent
US6280614B1 (en) * 2000-03-02 2001-08-28 Xerxes Corporation Residential septic tank
US6328890B1 (en) 1999-08-05 2001-12-11 Osborne Industries, Inc. Septic waste treatment system
US20060175240A1 (en) * 2005-02-07 2006-08-10 Glenn Clark Portable tank apparatus and method of use
US20080053885A1 (en) * 2006-09-04 2008-03-06 Graf Plastics Gmbh, A German Corporation Tank
US8857641B1 (en) * 2011-03-04 2014-10-14 Infiltrator Systems Inc Manipulating and restraining a two piece septic tank
US9840040B2 (en) 2014-07-24 2017-12-12 Infiltrator Water Technologies Llc Plastic tank having fusion welded parts
US11578480B2 (en) * 2017-01-30 2023-02-14 Oldcastle Precast Inc. Grease interceptor and method of use thereof
US11993417B1 (en) 2020-02-21 2024-05-28 Advanced Drainage Systems, Inc. Multi-piece plastic tank having an integrated connection means and a method for implementing same

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US704244A (en) * 1902-01-02 1902-07-08 John Davis Apparatus for purifying water.
US1016241A (en) * 1911-05-25 1912-01-30 Irving Blount Separator.
US1134525A (en) * 1914-06-10 1915-04-06 Hugh C Gallagher Transportation-case.
US1719418A (en) * 1928-01-20 1929-07-02 Kaustine Company Inc Septic toilet tank
US2213458A (en) * 1938-09-02 1940-09-03 J W Swanson Septic tank
US2422555A (en) * 1945-04-20 1947-06-17 Gehle Drum-shaped oil separator divided by partitions into inlet, intermediate, and outletsections
US2471296A (en) * 1944-12-14 1949-05-24 Thermoid Company Jettison fuel tank

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Publication number Priority date Publication date Assignee Title
US704244A (en) * 1902-01-02 1902-07-08 John Davis Apparatus for purifying water.
US1016241A (en) * 1911-05-25 1912-01-30 Irving Blount Separator.
US1134525A (en) * 1914-06-10 1915-04-06 Hugh C Gallagher Transportation-case.
US1719418A (en) * 1928-01-20 1929-07-02 Kaustine Company Inc Septic toilet tank
US2213458A (en) * 1938-09-02 1940-09-03 J W Swanson Septic tank
US2471296A (en) * 1944-12-14 1949-05-24 Thermoid Company Jettison fuel tank
US2422555A (en) * 1945-04-20 1947-06-17 Gehle Drum-shaped oil separator divided by partitions into inlet, intermediate, and outletsections

Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3642138A (en) * 1970-08-12 1972-02-15 Raymond F Sheda Filtering tanks for waste disposal systems
US3947357A (en) * 1974-04-26 1976-03-30 The Apollo-Dynamic Corporation Limited Organic waste disposal device
US3998737A (en) * 1975-04-25 1976-12-21 Caterpillar Tractor Co. Filter arrangement with split hydraulic tank
US4134833A (en) * 1977-09-29 1979-01-16 Mccormick Dennis J Water recycle unit-grey water clearifier
US4345998A (en) * 1979-07-05 1982-08-24 Graffis Kelly R Plastic catch basin
US4697609A (en) * 1985-01-09 1987-10-06 Helmut Salewski Holding tank for waste fluids and process for disposing of waste fluids from recreational vehicles
US4772389A (en) * 1987-07-21 1988-09-20 Denis Guibault Pipe and its retainer in a tank
US4824287A (en) * 1988-02-19 1989-04-25 Tracy Lawrence M Septic system
US5087151A (en) * 1989-01-30 1992-02-11 Ditullio Robert J Drainage system
US4961670A (en) * 1989-03-27 1990-10-09 Bonar Inc. Molded septic tank
US4959145A (en) * 1989-11-13 1990-09-25 Tuf-Tite, Inc. Gas baffle device for on-site waste disposal systems
US5101849A (en) * 1990-10-23 1992-04-07 Richard James G Baffle for a sewage tank and method of installation
US5544460A (en) * 1994-03-31 1996-08-13 Janice Faye Fife Multi-component fluid tank
US5779896A (en) * 1996-08-13 1998-07-14 Nurse, Jr.; Harry L. Gas baffle for a waste water treatment plant effluent
US6328890B1 (en) 1999-08-05 2001-12-11 Osborne Industries, Inc. Septic waste treatment system
US6280614B1 (en) * 2000-03-02 2001-08-28 Xerxes Corporation Residential septic tank
WO2001064309A1 (en) * 2000-03-02 2001-09-07 Xerxes Corporation Residential septic tank
US6558535B2 (en) * 2000-03-02 2003-05-06 Xerxes Corporation Residential septic tank with seams above sewage line and residential septic tank with stepped ribs
US20060175240A1 (en) * 2005-02-07 2006-08-10 Glenn Clark Portable tank apparatus and method of use
US7311827B2 (en) * 2005-02-07 2007-12-25 Glenn Clark Portable tank apparatus and method of use
US20080041778A1 (en) * 2005-02-07 2008-02-21 Glenn Clark Portable tank apparatus and method of use
US7462281B2 (en) 2005-02-07 2008-12-09 Glenn Clark Portable tank apparatus and method of use
US20080053885A1 (en) * 2006-09-04 2008-03-06 Graf Plastics Gmbh, A German Corporation Tank
US7572372B2 (en) * 2006-09-04 2009-08-11 Graf Plastics Gmbh Tank
US8857641B1 (en) * 2011-03-04 2014-10-14 Infiltrator Systems Inc Manipulating and restraining a two piece septic tank
US9840040B2 (en) 2014-07-24 2017-12-12 Infiltrator Water Technologies Llc Plastic tank having fusion welded parts
US11578480B2 (en) * 2017-01-30 2023-02-14 Oldcastle Precast Inc. Grease interceptor and method of use thereof
US11993417B1 (en) 2020-02-21 2024-05-28 Advanced Drainage Systems, Inc. Multi-piece plastic tank having an integrated connection means and a method for implementing same

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