US2911102A

US2911102A - Septic tank

Info

Publication number: US2911102A
Application number: US723919A
Authority: US
Inventors: Cionchi Duilio
Original assignee: Individual
Current assignee: Individual
Priority date: 1958-03-25
Filing date: 1958-03-25
Publication date: 1959-11-03
Anticipated expiration: 1976-11-03

Description

D. cloNcHl SEPTIC TANK Nov. 3,1959

Filed March 25, 195e 2 Sheets-Sheet 1 1 N VEN TOR.

Attorneys Uu/io Gionchi aou/#wey D. ClONCHl Nov. 3, 1959 SEPTIC TANK 2 Sheets-Sheet 2 Filed March 25, 1.958

2J m.. F

United States Patent SEPTIC TANK Duilio Cionchi, New London, Coun. Application March 25, 1958, Serial No. 723,919 '3 Claims. (Cl. 210-532) 'I'his invention relates generally to septic tanks and more particularly to a novel and improved construction in septic tanks which allows for easy assembly and more etlicient disposal of wastes.

The septic tank, comprising this invention, has been designed of detached elements that permit the assembling by a common laborer. It requires a minimum of time to put into operation and may be constructed of reinforced concrete, poured and vibrated, -using material of high resistance and a of thickness, or further, may be constructed of aluminum, steel or plastic. The particular construction allows the septic tank to be of hal-f the Weight'of similar capacity tanks, thereby allowing for economy Iin transportation costs.

Basically, the tank consists of three major parts. Firstly, a substantially cylindrical outer tank constituting the first major part is utilized. Secondly, a pair of concentrically positioned specially constructed hollow members constituting the second and third major parts are carried within the outer tank in such a manner that the relationship of the outer tank and hollow members deine'particular flow paths for proper treatment ofY the iniiow.

The advantages of the novel and improved construction described below over the prior art devices are a result of the particular design which maintains a complete stillness of the matter in the transformation zones upon iilling and emptying the tank. In view of this, no pressure develops and no escapable gas develops. Due to the tight sealing of the structure, air cannot gain access to the inner part thereby maintaining the inner temperature constant resulting in an improved :action of all bacteria which facilitates the inflow of any waste material, both liquid land solid.

Further, the tank is so designed that internal inspection can be done from an opening in the top of the tank which permits complete control of the functioning of the tank. The tank may be cleaned aftera limited time by a very simple method. The capacity of the tank, of course, may vary and it is contemplated that the teachings disclosed below may be utilized with any tank having a capacity between one gallon and ten thousand gallons and dependent on the capacity, the tanks may be used for any type of home, school, hotel, or for any purpose at all where septic tanks have been utilized.

Accordingly, it is the principal object of this invention to provide a novel and improved construction in septic tanks which enables the more eicient removal of any waste material.

It is a further object of this invention to provide a novel and improved construction in septic tanks which is capable of particularly easy and rapid assembly.

It is a further object of this invention to provide a novel and improved septic tank construction which may be substantially lighter in weight than former constructions for the same capacity tank.

These together with other objects and advantages which will become subsequently apparent reside in the details Y 2,911,102 Patented Nov. 3, 1959 ice tion illustrating the relationship of individual parts andv the ilow characteristics of the inow;

Figure 2 is a sectional Iview taken substantially along the plane 2-2 of Figure 1;

Figure 3 is a sectional View taken substantially along the plane 3-3 of Figure l; and

Figure 4 is ia sectional view taken substantially along the plane 4--4 of Figure 1.

With continuing reference to the drawings, and initial reference to Figure 1, the numeral 10 generally represents the septic tank construction adapted to be buried in the ground.

` The septic tank 10 includes a substantially cylindrical outer tank 12 having an inflow conduit 14 communicating with the inner volume of the outer tank 12 'and an outflow conduit 16. It is to be noted that the level of the conduit 14 is placed somewhat above the level of the conduit 16 for facilitating the discharge of waste material through the conduit 16. The outer tank 12 includes a closed bottom portion 18 and a pair of

opposed shelves

20 and 22 on the inner circumference of the cylinder.v

The

conduits

14 and 16 communicate with the inner volume of the tank through a pair of apertures as at 24 and 26. i

' A first inner hollow member 28 is supported within the outer tank 12 by a circumferential flange portion 30 which rests on the

shelves

20 and 22 as at 32. The iirst inner hollow member 28 is substantially in the form of a pair of hollow conical frustums joined at their bases. The circumferential flange 30 substantially cncircles the irst inner hollow member about the joined bases. Actually, the rst inner hollow member is an integral body and only has the shape of the pair of frustums. Y The frustum surfaces as 34 and 36 are open so as to pass refuse therethrough. Extending above the open frustum surface 36 is a substantially cylindrical volume defined by the upstanding walls 38. A channel portion 40 is defined by projecting walls 42 and 44 formed integral with the wall of the first inner hollow member 28. The

channel bottom as at 46 communicates with the inner.

outer tank 12 to the channel shaped volume defined by` the projecting walls 42 and 44.

A second innerhollow member 48 is likewise formed` in the shape of a pair of hollow conical frustums but the second inner hollow member 48 utilizes the frustums joined at their truncated surfaces. Again, it is to be noted that the inner hollow member is formed integral and the reference to conical frusturns is made only to more clearly describe the tank shape. A plurality of support hangers as at S0 and 52 are fixed to the inner hollow member 48 along the inner edge thereof as at 54. A corresponding plurality of shelves S6 and 58 are afxed to the surface 36 of the first inner hollow member 28. As may be particularly noted in Figures 1 and 3, the

support hangers

50 and 52 are adapted to sit on the

shelves

56 and 58.

The inner relationships between the iirst inner hollow member 28 and the second inner hollow member 48 are to be noted. That is, the truncated surface 34 and the base 60 allow for relatively small passage between the inner hollow members. The passage between the members increases toward the vertical centers of the members and then decreases toward the truncated surface 36 and base 62.

a The outer tank is yadapted to be closed by a xed cover plate 62 which accommodates the upstanding walls of the outer tank 12 and the rst inner hollow member 28 in slots defined therein. A centered opening in the cover plajte 62 accommodates a removable top cover 64 having handle removing means as at 66 to facilitate the removal of the cover 64.

With the relationships so defined, in operation, the

outer 'and inner hollow members are lled with water to ale've'l defined by the numeral 70. Refuse material enters the tank through the conduit 14 and aperture 2.4 and proceeds through the channel Volume 40 through the channel bottom 46 into the inner volume of the lfirst inner hollow member 28 and thence to the bottom of the outer hollow member 12 which is noted by the numeral 72 and 'may be defined as the rst zone of separation of the heavy mud and solid refuse. The refuse will substantially continue through the area designated at 74 of the inner hollow member 48. This area 74 'is noted as the room of transformation where the solution substantially decomposes. Above the surface 36 approximately at the water level, a second zone of transformation develops. The microbes carried by the refuse ood into this area. The refuse substantially overows the base 62 of the inner hollow member 4S and proceeds substantially downward through the inner volume of the first inner hollow member 28 about the second inner hollow member 4S. The refuse falls to the area outside and below ,the first Vinner hollow member 28 and proceeds to seep .upwardly about the

shelves

20 and 22 to an area designated at 76 where substantially clear Water is discharged through the outflow conduit 16.

The path of flow substantially removes the refuse as it continues along the path prescribed by the particular shape of the cooperating tank and hollow members. The flow is of course incited by the incoming refuse. It is to be noted that the substantially cylindrical shape of all of the component parts eliminate the possibility of the accumulation of pollution at the corners. Further, the particular "tank construction enables the mixed refuse, -both liquid and solid, to enter the tanks and be conveyed to the internal separation zone where the conical shapes decompose the refuse and force out pure water to the outiiow conduit 16. All the refuse, which `is to be transformed by intense microbe action, is retained and completely converted into salts that become eliminated to remain .absolutely immune so that it can be spread on any regular soil for fertilization.

The foregoing is considered as illustrative only of the principles of the invention. Further, since numerous modifications and changes will readily occur to those skilled in the art, it is not desired to limit the invention to the exact construction and operation shown and described, and accordingly, al1 suitable modifications and Y 4 A equivalents may be resorted to, falling Within the scope of the invention vas claimed.

What is claimed as new is'as follows:

l. A septic tank construction comprising a plurality of open inner concentric hollow members supported within and communicating with an outer tank, inlet and outlet means communicating with the inner volume of said outer tank, and flow pasa-ges defi-ned by the walls of the tank and hollow members for directing a iluid along a prescribed ow path, a iirst of said plurality of inner hollow members being in the form of apair of hollow conical frustums joined at their bases, a second of said plurality of inner hollow members being in the form of a pair of hollow conical frustums joined at t-heir truncated surfaces.

2. A septic tank construction comprising a plurality of open inner concentric hollow members supported within and communicating with an outer tank, inlet and outlet means communicating with the inner volume of Asaid outer tank, :and flow passages defined by the walls of the tank and hollow members for directing a. fluid along .a prescribed iiow path, a first of said plurality of inner hollow Ymembers being in Vthe form of a pair of hollow conical frustums joined at their bases, a second of said plurality of inner hollow members being in they form of a pair of hollow conical frustums joined at their truncated surfaces, said first inner hollow member carried within and by said outer tank, said second inner hollow member carried within and by said first inner hollow member.

3. A septic tank construction comprising a plurality of open inner concentric hollow members ysupported within and communicating with an outer tank, inlet and outlet means communicating with the inner volume Vof said outer tank, and flow passages defined by the walls of the tank and hollow members for vdirecting a fluid along a prescribed flow path, a first of said plurality .of inner 'hollow members being in the form of a pair of -hollow conical frustums joined at their bases,l a second of said plurality of inner hollow members being in the form of a pair of hollow conical frustums joined at .their truncated surfaces, said first inner hollow member carried within and by said outer tank, said second inner hollow member carried within and by said first inner hollow member, and channel means adjacent the inlet means for confining the intake to a prescribed path.

References Cited in the le of this patent UNITED STATES PATENTS 1,007,823 Tieman Nov. 7, 1911 2,156,123 Mount Apr. 25, 1939 FOREIGN PATENTS I113,743 Switzerland Feb. 1, 1926 706,394 France Mar. 30, 193,1 596,518 -Germany May 7, 1934