US2303109A - Grease and oil interceptor - Google Patents
Grease and oil interceptor Download PDFInfo
- Publication number
- US2303109A US2303109A US335372A US33537240A US2303109A US 2303109 A US2303109 A US 2303109A US 335372 A US335372 A US 335372A US 33537240 A US33537240 A US 33537240A US 2303109 A US2303109 A US 2303109A
- Authority
- US
- United States
- Prior art keywords
- outlet
- liquid level
- inlet
- air
- interceptor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/14—Devices for separating liquid or solid substances from sewage, e.g. sand or sludge traps, rakes or grates
- E03F5/16—Devices for separating oil, water or grease from sewage in drains leading to the main sewer
Definitions
- Fig. l is a vertical section of one form of my improved grease interceptor.
- Fig. 2 is a plan View thereof.
- Fig. 3 is a section taken on line 3 3 of Fig. l.
- Fig. 4 is a section taken on line li-t of Fig. l.
- the body of the interceptor is indicated at I and has an inlet 2 on one side below the liquid level and an outlet 3 on the opposite side the lowermost point of which is above the liquid level.
- the inlet 2 opens to a vertical chamber 4 provided on the inlet side of the body and is separated from the interior 5 oi" the body by the vertical wall Si which terminates below the top of the body and above the normal liquid level at the point 'I.
- the wall 6 is integral with the inlet end wall of the body and has an aperture vIi opening to the bottom of the vertical chamber 4 and is also provided with an aperture above the aperture 8 the purpose of which aperture 9 is to permit greases to pass from the interior of the body to the vertical chamber 4 when grease accumulates within the interior of the body to a depth to pass through the aperture Si. This grease may flow upward to the inlet 2 and clog the same thereby requiring the grease to be withdrawn to permit the interceptor to function. In this manner the interceptor is prevented from becoming overloaded.
- the opposite end of the body is provided with a conduit-like portion Iii extending outwardly from the body as shown in Fig. 2 and to the upper end of which the outlet conduit 3 is connected.
- There is an integral wall II at the outlet having an opening I2 therein at the bottom of the interceptor and extends at the upper end to above the liquid level in the chamber and is spaced from the top of the body to provide an air passageway Ili.
- the bottom I G of the wall I5 extends a short distance below the lowermost point of the outlet 3.
- the normal water level, indicated by the dotted line I'I is thus slightly above the lowermost point of the outlet 3 and slightly below the upper end l of the wall E5.
- the device operates as follows: Assuming that the interceptor contains liquid indicated at the level I7, inow of additional liquids through the inlet 2 discharges into the passageway 4 and tends to raise the water level and, as the level rises, air is compressed in the upper part of the chamber until the liquid begins to iiow to the outlet the lowermost point of which is the ⁇ Iiow level in the interceptor body. It will be noted that increase in air pressure in the top of the interceptor will cause the same to by-pass to the outlet below the -edge I6 of the ⁇ baiile plate I5.
- the upper end l of the Wall I is a little above the normal liquid level and that greases and oils in the liquid die charging into the vertical chamber 4 at each flushing will to a major extent pass over the top 'I of the wall 6 to the top of the liquid between the walls 6 and II and, as grease accumulates on the liquid between the said walls, water will tend to flow from the inlet through the apertures 8 and I2 to the outlet.
- the distance between the walls 6 and II is suflicient to permit the greases and oils passing through the aperture 8 to rise to the liquid level and any air discharging with the liquid passing through the inl-et 2 may rise to the top of the body.
- a removable cover I8 shown in Fig. 2
- This cover is sealed to the top of the interceptor to prevent escape of gases and air through the top.
- the described apparatus is particularly adaptable for use in retaining the liquid greases and oils ilowing thereinto through the inlet 2 and while the term grease is used the principal purpose or" the invention is to prevent oil from passing to the sewer. In either event, however, the oils and greases are held within the interceptor body.
- An oil and grease interceptor comprising a chambered body having an inlet conduit discharging thereto below the normal liquid level therein, an outlet conduit connected to the body near the top and determining the normal liquid level therewithin, means providing a vertical pasageway at the outlet side of the body, said passageway having an opening to the body adjacentI the top and an opening to the body adjacent the bottom, and further being in communication its upper end with the outlet conduit, a baffle extending from the top of the body into the vertical passageway to a point below the normal liquid level in the body whereby an accumulation of gases and air in the top of the body in volume sunlcient to lower the liquid level approximately to the lower edge of the bafile permits air and gases to pass beneath the baille to the outlet conduit, the arrangement maintaining a substantially constant volume of air and gas in the body at a substantially constant head pressure.
- An oil interceptor comprising a chambered body having an inlet conduit discharging thereto on one side below the normal liquid level therein,
- a partition within the body adjacent the inlet side thereof, the upper end of the partition terminating below the top and above the normal liquid level within the body and the lower end of said partition being spaced from the bottom of the body, said partition providing a vertical passageway into which the inlet discharges, said partition having an aperture at a distance below the point of discharge of the inlet conduit to the inlet passageway through which oils may pass to the inlet upon accumulation of oils and greases in the body to the level of the said opening, means providing an outlet passageway on another side of the body, said outlet passageway having an opening to the body near the bottom, baille means within the said outlet passageway for maintaining a normal liquid level within the body, said outlet passageway having an opening to the body above the flow level in the body, and said baille means being between the said last named opening and the opening of said outlet conduit to the body.
- a chambered body having an inlet and an outlet on opposite sides of the body, a vertical passageway on the exterior of each oi the opposite sides of the body, each of said vertical passageways having an opening to the body through the respective side walls at the bottom and an opening through the respective side walls at the top of the body above the normal liquid level therein, an inlet conduit discharging to the passageway on the inlet side or" the body below the normal liquid level in the body, and an outlet conduit for the passageway on the opposite side of the body opening thereto at the upper end and determining the normal liquid level within the body, a baille depending from the top of the body to between the point of connection of the outlet conduit to the passageway and the opening of the said passageway to the top of the body, said baille terminating at a point below the normal liquid level in the body and providing for discharge of air and gases from the top of the body to the outlet upon accumulation of sufficient volume or" gases in the top of the body to lower the liquid level to below the lower edge of the bail
- a grease and oil interceptor comprising a chambered body having an inlet conduit discharging thereto below the normal liquid level therein,
- a chamber-ed body having a top and bottom, an inlet on one side ol' the body and an outlet on the opposite side, the inlet providing i'or discharge of liquid to the E dy below the liquid level therein, and the o et oper ig to the body at a point above the inlet and below the top determining the normal liquid level in the body and providing an air and @es space thereabove at normal head pressure i thin the body
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Sewage (AREA)
Description
Nav. 24, 1942. E. w, N, BoosEY- amsn Ayn onJ zmncmons vFiled May l5. 194i() 4 l INVNTOR." @afm/ W /V. 50066)/ BY.
W i /7'v Patented Nov. 24, 1942 UNETEB STAT iiTiNT OFFICE 5 Claims.
discharge of additional liquid thereto tending to increase head pressure, liquid will discharge to the outlet without decrease in volume of air at the top of the interceptor body.
In previous structures in which an air space is provided in the top of the body air may be discharged to the outlet as the liquid level rises and thus the head pressure will Vary in the intercept-or. In my improved construction a permanent head pressure is provided which prevents surge of liquid within the body and an air lock is provided to maintain a predetermined volume of air and gas in the interceptor and permits excess air and gas to pass to the outlet.
These and other objects and features of the invention are hereinafter more fully described and claimed and shown in preferred form in the accompanying drawing in which- Fig. l is a vertical section of one form of my improved grease interceptor.
Fig. 2 is a plan View thereof.
Fig. 3 is a section taken on line 3 3 of Fig. l.
Fig. 4 is a section taken on line li-t of Fig. l.
In the ferm of the invention shown in Fig. l the body of the interceptor is indicated at I and has an inlet 2 on one side below the liquid level and an outlet 3 on the opposite side the lowermost point of which is above the liquid level.
The inlet 2 opens to a vertical chamber 4 provided on the inlet side of the body and is separated from the interior 5 oi" the body by the vertical wall Si which terminates below the top of the body and above the normal liquid level at the point 'I. The wall 6 is integral with the inlet end wall of the body and has an aperture vIi opening to the bottom of the vertical chamber 4 and is also provided with an aperture above the aperture 8 the purpose of which aperture 9 is to permit greases to pass from the interior of the body to the vertical chamber 4 when grease accumulates within the interior of the body to a depth to pass through the aperture Si. This grease may flow upward to the inlet 2 and clog the same thereby requiring the grease to be withdrawn to permit the interceptor to function. In this manner the interceptor is prevented from becoming overloaded.
The opposite end of the body is provided with a conduit-like portion Iii extending outwardly from the body as shown in Fig. 2 and to the upper end of which the outlet conduit 3 is connected. There is an integral wall II at the outlet having an opening I2 therein at the bottom of the interceptor and extends at the upper end to above the liquid level in the chamber and is spaced from the top of the body to provide an air passageway Ili. There is also a depending baille plate I5 extending from the top downwardly to below the top 'l of the wall B adjacent the outlet. The bottom I G of the wall I5 extends a short distance below the lowermost point of the outlet 3. The normal water level, indicated by the dotted line I'I, is thus slightly above the lowermost point of the outlet 3 and slightly below the upper end l of the wall E5.
With this described arrangement of parts the device operates as follows: Assuming that the interceptor contains liquid indicated at the level I7, inow of additional liquids through the inlet 2 discharges into the passageway 4 and tends to raise the water level and, as the level rises, air is compressed in the upper part of the chamber until the liquid begins to iiow to the outlet the lowermost point of which is the `Iiow level in the interceptor body. It will be noted that increase in air pressure in the top of the interceptor will cause the same to by-pass to the outlet below the -edge I6 of the `baiile plate I5. Thus there will be no accumulation of gases above the liquid level in the normal operation of the device inasmuch as an accumulation would tend to increase the vol-- ume of air and gas on the top of the liquid and thus tend to increase the pressure of gases causing discharge of excess air and gas to the outlet. In other words to provide a substantially permanent head pressure in the body.
It will be further noted that the upper end l of the Wall I is a little above the normal liquid level and that greases and oils in the liquid die charging into the vertical chamber 4 at each flushing will to a major extent pass over the top 'I of the wall 6 to the top of the liquid between the walls 6 and II and, as grease accumulates on the liquid between the said walls, water will tend to flow from the inlet through the apertures 8 and I2 to the outlet. The distance between the walls 6 and II is suflicient to permit the greases and oils passing through the aperture 8 to rise to the liquid level and any air discharging with the liquid passing through the inl-et 2 may rise to the top of the body.
When sufficient depth of grease has accumulated in the body it may pass to the inlet through the aperture 9 in the wall 6 and nally tend to stop the inlet thus requiring the grease to be removed from the body to enable the interceptor to again properly function.
In the form of the invention shown in Fig. l there is provided a removable cover I8, shown in Fig. 2, This cover is sealed to the top of the interceptor to prevent escape of gases and air through the top.
The described apparatus is particularly adaptable for use in retaining the liquid greases and oils ilowing thereinto through the inlet 2 and while the term grease is used the principal purpose or" the invention is to prevent oil from passing to the sewer. In either event, however, the oils and greases are held within the interceptor body.
Having thus briefly described my invention, its utility and mode of operation, what I claim and desire to secure by Letters Patent of the United States is:
1. An oil and grease interceptor comprising a chambered body having an inlet conduit discharging thereto below the normal liquid level therein, an outlet conduit connected to the body near the top and determining the normal liquid level therewithin, means providing a vertical pasageway at the outlet side of the body, said passageway having an opening to the body adjacentI the top and an opening to the body adjacent the bottom, and further being in communication its upper end with the outlet conduit, a baffle extending from the top of the body into the vertical passageway to a point below the normal liquid level in the body whereby an accumulation of gases and air in the top of the body in volume sunlcient to lower the liquid level approximately to the lower edge of the bafile permits air and gases to pass beneath the baille to the outlet conduit, the arrangement maintaining a substantially constant volume of air and gas in the body at a substantially constant head pressure.
2. An oil interceptor comprising a chambered body having an inlet conduit discharging thereto on one side below the normal liquid level therein,
a partition within the body adjacent the inlet side thereof, the upper end of the partition terminating below the top and above the normal liquid level within the body and the lower end of said partition being spaced from the bottom of the body, said partition providing a vertical passageway into which the inlet discharges, said partition having an aperture at a distance below the point of discharge of the inlet conduit to the inlet passageway through which oils may pass to the inlet upon accumulation of oils and greases in the body to the level of the said opening, means providing an outlet passageway on another side of the body, said outlet passageway having an opening to the body near the bottom, baille means within the said outlet passageway for maintaining a normal liquid level within the body, said outlet passageway having an opening to the body above the flow level in the body, and said baille means being between the said last named opening and the opening of said outlet conduit to the body.
3. In a grease and oil interceptor, a chambered body having an inlet and an outlet on opposite sides of the body, a vertical passageway on the exterior of each oi the opposite sides of the body, each of said vertical passageways having an opening to the body through the respective side walls at the bottom and an opening through the respective side walls at the top of the body above the normal liquid level therein, an inlet conduit discharging to the passageway on the inlet side or" the body below the normal liquid level in the body, and an outlet conduit for the passageway on the opposite side of the body opening thereto at the upper end and determining the normal liquid level within the body, a baille depending from the top of the body to between the point of connection of the outlet conduit to the passageway and the opening of the said passageway to the top of the body, said baille terminating at a point below the normal liquid level in the body and providing for discharge of air and gases from the top of the body to the outlet upon accumulation of sufficient volume or" gases in the top of the body to lower the liquid level to below the lower edge of the baille, said body being otherwise sealed to atmosphere.
4. A grease and oil interceptor comprising a chambered body having an inlet conduit discharging thereto below the normal liquid level therein,
an outlet conduit connected to the body near the top, the inlet conduit being on the opposite side of the body from the outlet conduit, means providing a vertical passageway on the exterior of the inlet side of the body into which the inlowing liquid discharges, said vertical passageway terminating at the top above the normal liquid level in the body and arranged at the bottom to permit liquid to pass into the interior of the body, means providing a vertical passageway on the exterior of the outlet side of the body, the outlet conduit opening to near the top of the body, leans associated with the outlet for determining the normal liquid level in the body above the lowerrncst point of the outlet and below the uppermost point oi the said inlet passageway and providing an air space in the top of the body, a baille at the outlet depending from the top of the body and extending to below the liquid level in the body a d noinally sealing the air space in the body iron the outlet, the arrangement providing that as the liquid level is lowered by increase in volume of gas and air in said air space to below the lower edge of the baille gases are permitted to pass to the outlet and thus reestablich the liquid level under normal head pressure within t e interceptor.
5. In an oil and grease interceptor, a chamber-ed body having a top and bottom, an inlet on one side ol' the body and an outlet on the opposite side, the inlet providing i'or discharge of liquid to the E dy below the liquid level therein, and the o et oper ig to the body at a point above the inlet and below the top determining the normal liquid level in the body and providing an air and @es space thereabove at normal head pressure i thin the body, means providing a vertical way at the inlet in which air and lighter liqun such as oil and greases may rise to the top of the liquid body and permitting the heavier liquid to fall to the bottom of the interceptor, means providing a vertical passageway adjacent the outlet open at its top to the top of the body and open at the bottom to the bottom of the intercep or, a baille at the top of the passageway at 'the outlet extending from the top oi" the body to below the liquid level therein and normally the outlet from the said air space above the liquid level, said baille providing a means whereby increase in volume of air and gases in the body lowers the liquid level to below the lower of the baille thereby opening the said air and gas space to the outlet to permit discharge ci' excess gases to the outlet and restoring the normal liquid level to again seal the said air space trom the outlet.
EDWARD W. N. BOOSEY.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US335372A US2303109A (en) | 1940-05-15 | 1940-05-15 | Grease and oil interceptor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US335372A US2303109A (en) | 1940-05-15 | 1940-05-15 | Grease and oil interceptor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US2303109A true US2303109A (en) | 1942-11-24 |
Family
ID=23311501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US335372A Expired - Lifetime US2303109A (en) | 1940-05-15 | 1940-05-15 | Grease and oil interceptor |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US2303109A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2655893A (en) * | 1951-07-19 | 1953-10-20 | American Viscose Corp | Fluid leakage indicator |
| US2745551A (en) * | 1951-03-12 | 1956-05-15 | J A Zurn Mfg Co | Separator |
| FR2457840A1 (en) * | 1979-05-30 | 1980-12-26 | Passavant Werke | Sepg. tank esp. for flotation of fat from waste water - has inspection cover with downward annular rim sitting in liq. seal gutter |
| FR2474328A1 (en) * | 1980-01-28 | 1981-07-31 | Vandevoorde Philippe | Sepn. tank for immiscible liquids with different densities - used esp. for continuous sepn. of oil from waste water, where water outlet can be closed for periodic removal of oil |
-
1940
- 1940-05-15 US US335372A patent/US2303109A/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2745551A (en) * | 1951-03-12 | 1956-05-15 | J A Zurn Mfg Co | Separator |
| US2655893A (en) * | 1951-07-19 | 1953-10-20 | American Viscose Corp | Fluid leakage indicator |
| FR2457840A1 (en) * | 1979-05-30 | 1980-12-26 | Passavant Werke | Sepg. tank esp. for flotation of fat from waste water - has inspection cover with downward annular rim sitting in liq. seal gutter |
| FR2474328A1 (en) * | 1980-01-28 | 1981-07-31 | Vandevoorde Philippe | Sepn. tank for immiscible liquids with different densities - used esp. for continuous sepn. of oil from waste water, where water outlet can be closed for periodic removal of oil |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US1200951A (en) | Separator. | |
| US2303109A (en) | Grease and oil interceptor | |
| US2279813A (en) | Combined septic tank and grease trap | |
| US2059844A (en) | Grease intercepter | |
| US2102430A (en) | Grease trap | |
| US2272912A (en) | Grease trap | |
| US2433087A (en) | Oil and grease interceptor | |
| US2268854A (en) | Grease trap | |
| US2057203A (en) | Grease trap | |
| US2504474A (en) | Valved catch basin for drains | |
| US2099061A (en) | Waste trap | |
| US2103316A (en) | Grease trap | |
| US2348723A (en) | Oil interceptor | |
| US1910186A (en) | Surface drain | |
| US2081215A (en) | Grease intercepter | |
| US2102429A (en) | Grease trap | |
| US2362447A (en) | Grease interceptor | |
| US2324190A (en) | Grease interceptor | |
| US2140581A (en) | Grease interceptor | |
| US2277254A (en) | Grease trap | |
| US668776A (en) | Plumber's trap. | |
| US2288989A (en) | Oil interceptor | |
| US1281147A (en) | Trap. | |
| US2072294A (en) | Constant pressure gas regulator | |
| US787365A (en) | Steam and oil trap. |