US20170058481A1 - Inflow dish - Google Patents
Inflow dish Download PDFInfo
- Publication number
- US20170058481A1 US20170058481A1 US15/330,827 US201615330827A US2017058481A1 US 20170058481 A1 US20170058481 A1 US 20170058481A1 US 201615330827 A US201615330827 A US 201615330827A US 2017058481 A1 US2017058481 A1 US 2017058481A1
- Authority
- US
- United States
- Prior art keywords
- dish
- manhole
- ledge
- inflow
- opening
- 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.)
- Abandoned
Links
- 239000004417 polycarbonate Substances 0.000 claims description 5
- 229920000515 polycarbonate Polymers 0.000 claims description 5
- 230000000284 resting effect Effects 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 description 5
- 239000004698 Polyethylene Substances 0.000 description 3
- -1 polyethylene Polymers 0.000 description 3
- 229920000573 polyethylene Polymers 0.000 description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 238000007665 sagging Methods 0.000 description 2
- 208000008589 Obesity Diseases 0.000 description 1
- 235000020824 obesity Nutrition 0.000 description 1
- 239000010421 standard material Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
- E02D29/14—Covers for manholes or the like; Frames for covers
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
- E02D29/14—Covers for manholes or the like; Frames for covers
- E02D29/1472—Cover entirely made of synthetic material
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0004—Synthetics
Definitions
- the present invention is directed to an inflow dish for a sanitary sewer system and more particularly to a two-piece dish assembly designed to be used in enlarged manhole openings.
- Inflow dishes are designed to fit below the manhole cover and to prevent rainfall and debris that may find its way past the manhole cover from entering the sanitary sewer system.
- Inflow dishes designed to fit standard manhole openings do not fit manholes with enlarged diameters. Providing an inflow dish enlarged to accommodate the larger size manhole openings has not proven to be a satisfactory solution. Using standard materials to construct a single piece enlarged inflow dish has provided an inflow dish that is either too weak to accommodate rain and debris without collapsing or too heavy to be easily handled. Also very often it would not be necessary to remove the entire inflow dish if it could be removed in sections.
- the present invention provides a two-piece inflow dish assembly which includes an outside dish with a central opening and an insert dish which nests within the outside dish to completely close the manhole below the manhole cover.
- the outside dish has the diameter of an enlarged manhole opening so that the two-piece dish can fit within and close the enlarged manhole opening.
- the insert dish is substantially the diameter of a standard manhole opening so that it can be used by itself to serve as an inflow dish for a standard size manhole.
- the construction permits the inflow dish assembly to be removed in two pieces. It may only be necessary to remove the insert dish to dispose of debris captured by the inflow dish. Where access to the manhole is required, it may be necessary to remove both pieces.
- a problem with using commonly used materials, such as polyethylene, for inflow dishes is that such material is not sufficiently strong and, especially in the larger diameters required by the enlarged manholes, can result in sagging of the dish and the possibility of the dish, and the debris carried by the dish, falling into the manhole.
- a preferred construction would be that, rather than being formed of polyethylene, either or both of the dishes of the inflow dish constructed is constructed of polycarbonate or a material having the characteristics of polycarbonate. Polycarbonate has the necessary strength to function as an inflow dish even with large diameter dishes. It has been found that acrylic is also sufficiently strong to support the dishes over the span of an enlarged manhole opening.
- FIG. 1 is a fragmentary cross sectional view of the upper part of a manhole with a two-piece inflow dish assembly of the present invention shown in place;
- FIG. 1 a is an enlarged view of a portion of the structure shown in FIG. 1 ;
- FIG. 2 is top perspective view of the outside dish of the present invention.
- FIG. 3 is top perspective view of the two piece dish assembly of the present invention.
- an inflow dish assembly 10 of the present invention which includes an outside dish 14 having a central opening 13 which receives an insert dish 12 to provide the two-piece inflow dish assembly 10 .
- the inflow dish assembly 10 as can best be seen in FIG. 1 , is dimensioned to fit within a manhole opening 16 of a manhole 17 and below a manhole cover 18 .
- the manhole opening 16 is of a diameter which is larger than the diameter of a standard manhole opening and the cover 18 is therefore larger than the standard manhole cover to fit within and close the manhole opening 16 .
- Inflow dishes are commonly provided to be mounted below the manhole cover 18 in the manhole opening 16 to collect rainwater and debris passing the cover 18 and before the rainwater can make its way into the sanitary sewer system and thereby causing the system to overflow.
- the inflow dish assembly 10 of the present invention is of a diameter to fit within an enlarged manhole opening 18 of a manhole 19 and with the insert dish assembly 10 in place within the central opening 13 it is operable to fully block the manhole opening 16 below the manhole cover 18 .
- debris and rainwater that has made its way past the manhole cover 18 can, in many instances, be removed by removing the cover 18 and then removing only the insert dish 12 .
- the insert dish 12 is preferably dimensioned to fit within a standard manhole where it can be used without the outside dish 14 .
- the insert dish 12 removably nests within the center of the outside dish 14 to close the central opening 13 ( FIG. 2 ) formed within outside dish 14 to form the inflow dish assembly 10 .
- the inflow dish assembly 10 is intended to be inserted in the manhole opening 16 with an outwardly extending flange 22 of the outside dish 14 supported by a flange 20 formed in the wall 17 of the manhole 19 .
- a slot 21 is preferably formed in the flange 20 to receive the flange 22 of the outside dish 14 .
- the outside dish 14 is provided with an offset internal flange 23 formed about the central opening 13 which supports an outer rim 24 ( FIG. 3 ) of the insert dish 12 to receive a central portion 25 of the insert dish 12 within the central opening 13 to nest the insert dish 12 within the outside dish 14 to close the central opening 13 .
- an inflow dish assembly which includes an insert dish mounted within an outside dish to form an assembly which fits within a manhole that has been enlarged from the conventional size.
- any debris and rainwater can be removed by removing the inflow dish assembly in sections. If access through the enlarged manhole is not required it may only be necessary to remove the insert dish to gain access.
- Inflow dishes have heretofore been commonly constructed of polyethylene or a similar plastic material. Applicant has found that polycarbonate and similar plastic material as well as acrylic possess the strength necessary to prevent the dish from sagging and thereby risking debris and rainwater and even the dish itself from falling into the manhole and into the sanitary system.
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
- Sewage (AREA)
Abstract
A two piece inflow dish assembly for installation in an enlarged manhole opening to prevent debris from entering the manhole to clog the sewer system and to permit the inflow dish assembly to be removed from the manhole in separate pieces.
Description
- The present application is a divisional of U.S. patent application Ser. No. 13/682,900, filed Nov. 21, 2012, which claims priority from U.S. Provisional Application Ser. No. 61/562,517, filed Nov. 22, 2011, which is incorporated herein by reference.
- The present invention is directed to an inflow dish for a sanitary sewer system and more particularly to a two-piece dish assembly designed to be used in enlarged manhole openings.
- For a number of reasons, including the obesity of some workmen and the necessity to move larger equipment and supplies through a manhole opening to gain access to the manhole, it has been necessary to increase the diameter of manholes. Inflow dishes are designed to fit below the manhole cover and to prevent rainfall and debris that may find its way past the manhole cover from entering the sanitary sewer system.
- Inflow dishes designed to fit standard manhole openings, of course, do not fit manholes with enlarged diameters. Providing an inflow dish enlarged to accommodate the larger size manhole openings has not proven to be a satisfactory solution. Using standard materials to construct a single piece enlarged inflow dish has provided an inflow dish that is either too weak to accommodate rain and debris without collapsing or too heavy to be easily handled. Also very often it would not be necessary to remove the entire inflow dish if it could be removed in sections.
- The present invention provides a two-piece inflow dish assembly which includes an outside dish with a central opening and an insert dish which nests within the outside dish to completely close the manhole below the manhole cover. The outside dish has the diameter of an enlarged manhole opening so that the two-piece dish can fit within and close the enlarged manhole opening. The insert dish is substantially the diameter of a standard manhole opening so that it can be used by itself to serve as an inflow dish for a standard size manhole.
- The construction permits the inflow dish assembly to be removed in two pieces. It may only be necessary to remove the insert dish to dispose of debris captured by the inflow dish. Where access to the manhole is required, it may be necessary to remove both pieces.
- A problem with using commonly used materials, such as polyethylene, for inflow dishes is that such material is not sufficiently strong and, especially in the larger diameters required by the enlarged manholes, can result in sagging of the dish and the possibility of the dish, and the debris carried by the dish, falling into the manhole. A preferred construction, however, would be that, rather than being formed of polyethylene, either or both of the dishes of the inflow dish constructed is constructed of polycarbonate or a material having the characteristics of polycarbonate. Polycarbonate has the necessary strength to function as an inflow dish even with large diameter dishes. It has been found that acrylic is also sufficiently strong to support the dishes over the span of an enlarged manhole opening.
- Reference will be made herein to various drawings, wherein like reference numerals refer to like parts throughout and wherein:
-
FIG. 1 is a fragmentary cross sectional view of the upper part of a manhole with a two-piece inflow dish assembly of the present invention shown in place; -
FIG. 1a is an enlarged view of a portion of the structure shown inFIG. 1 ; -
FIG. 2 is top perspective view of the outside dish of the present invention; and -
FIG. 3 is top perspective view of the two piece dish assembly of the present invention. - Referring now to the drawings an
inflow dish assembly 10 of the present invention is shown which includes anoutside dish 14 having acentral opening 13 which receives aninsert dish 12 to provide the two-pieceinflow dish assembly 10. Theinflow dish assembly 10, as can best be seen inFIG. 1 , is dimensioned to fit within a manhole opening 16 of amanhole 17 and below amanhole cover 18. Themanhole opening 16 is of a diameter which is larger than the diameter of a standard manhole opening and thecover 18 is therefore larger than the standard manhole cover to fit within and close the manhole opening 16. Inflow dishes are commonly provided to be mounted below themanhole cover 18 in the manhole opening 16 to collect rainwater and debris passing thecover 18 and before the rainwater can make its way into the sanitary sewer system and thereby causing the system to overflow. - The
inflow dish assembly 10 of the present invention is of a diameter to fit within an enlarged manhole opening 18 of amanhole 19 and with theinsert dish assembly 10 in place within thecentral opening 13 it is operable to fully block the manhole opening 16 below themanhole cover 18. With theinflow dish assembly 10 in place as shown inFIG. 1 , debris and rainwater that has made its way past themanhole cover 18 can, in many instances, be removed by removing thecover 18 and then removing only theinsert dish 12. - The
insert dish 12 is preferably dimensioned to fit within a standard manhole where it can be used without theoutside dish 14. - As can best be seen in
FIGS. 1 andFIG. 3 theinsert dish 12 removably nests within the center of theoutside dish 14 to close the central opening 13 (FIG. 2 ) formed withinoutside dish 14 to form theinflow dish assembly 10. As seen inFIG. 1 theinflow dish assembly 10 is intended to be inserted in themanhole opening 16 with an outwardly extendingflange 22 of theoutside dish 14 supported by aflange 20 formed in thewall 17 of themanhole 19. Aslot 21 is preferably formed in theflange 20 to receive theflange 22 of theoutside dish 14. - Still referring to
FIGS. 1, 2 and 3 theoutside dish 14 is provided with an offsetinternal flange 23 formed about thecentral opening 13 which supports an outer rim 24 (FIG. 3 ) of theinsert dish 12 to receive acentral portion 25 of theinsert dish 12 within thecentral opening 13 to nest theinsert dish 12 within theoutside dish 14 to close thecentral opening 13. - It should be apparent that then an inflow dish assembly has been provided which includes an insert dish mounted within an outside dish to form an assembly which fits within a manhole that has been enlarged from the conventional size.
- If access to the enlarged manhole is required any debris and rainwater can be removed by removing the inflow dish assembly in sections. If access through the enlarged manhole is not required it may only be necessary to remove the insert dish to gain access.
- Inflow dishes have heretofore been commonly constructed of polyethylene or a similar plastic material. Applicant has found that polycarbonate and similar plastic material as well as acrylic possess the strength necessary to prevent the dish from sagging and thereby risking debris and rainwater and even the dish itself from falling into the manhole and into the sanitary system.
- Having thus described the disclosed two-piece inflow dish assembly of the present invention, other embodiments for the present invention that do not depart from the scope of the claims will become apparent to those of skill in the art.
Claims (5)
1. A manhole system comprising:
a manhole being formed with a cylindrical wall, a ledge extending interiorly from said cylindrical wall, said ledge having a slot extending radially along said ledge so as to form a ring and a manhole cover removably mounted to said ledge;
an inflow dish assembly for mounting in said manhole, said inflow dish assembly comprising; an outside dish and an insert dish mounted within said outside dish, said outside dish having a circumferential flange, said circumferential flange removably disposed on said ring so as to be bound by said ledge and disposed within said manhole and below said cover, said outside dish having an offset central opening forming a second ledge surrounding said opening, said second ledge disposed on a plane beneath the circumferential flange and parallel to the circumferential flange, and said inside dish removably mounted within said opening and on said second ledge.
2. The manhole system as set forth in claim 1 , wherein said circumferential flange having a planar surface and an outer edge, the planar surface resting upon said ring, the outer edge disposed within the slot.
3. The manhole system set forth in claim 1 , wherein said insert dish is dimensioned to fit within a standard size manhole opening.
4. The manhole system as set forth in claim 3 , wherein said outside dish is dimensioned to fit within an enlarged size manhole opening.
5. The manhole system as set forth in claim 1 , wherein said insert dish and said outside dish are formed of polycarbonate.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15/330,827 US20170058481A1 (en) | 2011-11-22 | 2016-11-07 | Inflow dish |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201161562517P | 2011-11-22 | 2011-11-22 | |
US13/682,900 US20130129418A1 (en) | 2011-11-22 | 2012-11-21 | Inflow dish |
US15/330,827 US20170058481A1 (en) | 2011-11-22 | 2016-11-07 | Inflow dish |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/682,900 Division US20130129418A1 (en) | 2011-11-22 | 2012-11-21 | Inflow dish |
Publications (1)
Publication Number | Publication Date |
---|---|
US20170058481A1 true US20170058481A1 (en) | 2017-03-02 |
Family
ID=48427117
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/682,900 Abandoned US20130129418A1 (en) | 2011-11-22 | 2012-11-21 | Inflow dish |
US15/330,827 Abandoned US20170058481A1 (en) | 2011-11-22 | 2016-11-07 | Inflow dish |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/682,900 Abandoned US20130129418A1 (en) | 2011-11-22 | 2012-11-21 | Inflow dish |
Country Status (1)
Country | Link |
---|---|
US (2) | US20130129418A1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2938308C (en) * | 2014-01-30 | 2020-12-22 | Jason Stephen Honeyball | Watershed protection device and system |
USD768843S1 (en) | 2014-11-28 | 2016-10-11 | Draingarde Inc. | Catch basin cover |
US11124958B1 (en) | 2016-10-03 | 2021-09-21 | Leanne M. Gagliardi | Debris catching device for open manhole |
USD873971S1 (en) * | 2018-04-05 | 2020-01-28 | Ohio Precision, Inc. | Drain |
US20220167069A1 (en) * | 2020-09-18 | 2022-05-26 | Reign RMC, LLC | Automated environment monitoring systems and methods |
GB2615369A (en) * | 2022-02-08 | 2023-08-09 | Drainfast Ltd | Inspection chamber protector |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3920347A (en) * | 1973-10-29 | 1975-11-18 | Roby Ind Inc | Manhole cover |
US5966876A (en) * | 1997-10-17 | 1999-10-19 | Southwestern Packing & Seals Inc. | Manhole insert and tether apparatus and method |
Family Cites Families (29)
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US3621623A (en) * | 1970-03-23 | 1971-11-23 | Allan Macmillan Downes | Apparatus for temporarily closing an opening formed at the top of vertical walls of a catch basin manhole or the like |
USRE29636E (en) * | 1975-01-06 | 1978-05-23 | Owens-Corning Fiberglas Corporation | Manhole and method of manufacture |
US4030851A (en) * | 1976-11-03 | 1977-06-21 | Graybeal Walter C | Manhole closure including a two-way pressure relief valve |
US4650365A (en) * | 1985-05-28 | 1987-03-17 | Frw Industries, Inc. | Watertight manhole insert |
US4649674A (en) * | 1986-03-17 | 1987-03-17 | Craig S. Gaul | Drain hole seal with bottom bleeder |
US4919564A (en) * | 1988-12-15 | 1990-04-24 | David L. Neathery | Manhole insert |
US4957389A (en) * | 1989-09-05 | 1990-09-18 | Neathery David L | Method and apparatus for sealing manholes |
US5062735A (en) * | 1989-12-04 | 1991-11-05 | Gaudin Carl J | Self sealing domed sewer cover assembly |
US5727351A (en) * | 1993-05-26 | 1998-03-17 | Neathery; David L. | Manhole insert and tether and method |
US6007270A (en) * | 1993-07-02 | 1999-12-28 | Bowman; Harold M. | Manhole frame assembly |
US5382113A (en) * | 1993-09-13 | 1995-01-17 | Chilton; Jack | Manhole Aqua-Blok inflow protector |
US5743673A (en) * | 1994-08-04 | 1998-04-28 | Bravo; Sergio M. | Watertight sealing system with relief valve for manhole having a spill bucket |
US5827007A (en) * | 1996-04-30 | 1998-10-27 | Barton; David L. | Entrance-deterring cap for manhole openings |
US5733444A (en) * | 1997-01-21 | 1998-03-31 | Johnson; Eric A. | Debris catcher for manholes and catch basins |
US5842811A (en) * | 1997-02-21 | 1998-12-01 | Johnson; David B. | Confined space manhole sign system |
US5957618A (en) * | 1997-12-19 | 1999-09-28 | Camtek Construction Products Corporation | Manhole insert |
US6224292B1 (en) * | 1999-06-16 | 2001-05-01 | Coskun Akalin | Catch basin installation system and method |
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DE102004023831B4 (en) * | 2004-05-13 | 2009-09-03 | Aco Severin Ahlmann Gmbh & Co. Kg | Covered plastic bar |
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-
2012
- 2012-11-21 US US13/682,900 patent/US20130129418A1/en not_active Abandoned
-
2016
- 2016-11-07 US US15/330,827 patent/US20170058481A1/en not_active Abandoned
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3920347A (en) * | 1973-10-29 | 1975-11-18 | Roby Ind Inc | Manhole cover |
US5966876A (en) * | 1997-10-17 | 1999-10-19 | Southwestern Packing & Seals Inc. | Manhole insert and tether apparatus and method |
Also Published As
Publication number | Publication date |
---|---|
US20130129418A1 (en) | 2013-05-23 |
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Owner name: VLASAK, JACKIE, FLORIDA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:JACQUELINE VLASAK,EXECUTOR OF ESTATE, LLOYD JAY WANDER-DECEASED;REEL/FRAME:045434/0381 Effective date: 20180404 |
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STPP | Information on status: patent application and granting procedure in general |
Free format text: NON FINAL ACTION MAILED |
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STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |