US3516541A - Drain safety device - Google Patents

Drain safety device Download PDF

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Publication number
US3516541A
US3516541A US773983A US3516541DA US3516541A US 3516541 A US3516541 A US 3516541A US 773983 A US773983 A US 773983A US 3516541D A US3516541D A US 3516541DA US 3516541 A US3516541 A US 3516541A
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US
United States
Prior art keywords
drain
safety device
sheet
tank
tube
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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
Application number
US773983A
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English (en)
Inventor
Derek D Hardingham
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Individual
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Individual
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Publication date
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Publication of US3516541A publication Critical patent/US3516541A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F5/00—Sewerage structures
    • E03F5/04—Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps
    • E03F5/0407—Floor drains for indoor use
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F5/00—Sewerage structures
    • E03F5/04—Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps
    • E03F2005/0416—Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps with an odour seal

Definitions

  • a prefabricated drain safety device adapted to be mounted in a vertical drain structure to prevent upward discharge of explosive vapors through the structure into the ambient atmosphere.
  • the present invention overcomes the disadvantages of sand bagging of such drain openings by the provision of A prefabricated drain safety device incorporating a rigid sheet in which a central opening is formed that is in communication with a depending cylindrical shell that is housed within an apertured tank secured to said sheet.
  • the peripheral edge portions of the shell rest on body shoulders forming a part of a downwardly extending drain structure.
  • a grated frame rests on the upper surface of the sheet and removably holds the safety device in place on the upper portion of the drain structure.
  • a major object of the present invention is to provide a prefabricated drain safety device of relatively simple mechanical structure which can be fabricated from standard, commercially available materials, is easy to install,
  • a further object of the invention is to supply a safety device of relatively lightweight structure that is formed from fibers of glass impregnated with a polymerized resin, which device is particularly adapted for removable installation in an existing vertical drain provided with a horizontal body shoulder in which an iron grating rests, with the safety device when so installed being substantially impervious to the action of water and moisture, and with only the peripheral edge portion of a sheet forming a part of said device being subjected to the wheel load of a vehicle as it passes over said grating.
  • FIG. 1 is a perspective view of a first form of the drain safety device
  • FIG. .2 is a vertical cross-sectional view of the device, taken on the line 22 of FIG. 1;
  • FIG. 3 is a transverse cross-sectional view of the device, taken on the line 3-3 of FIG. 3;
  • FIG. 4 is a perspective view of the upper portion of a drain structure after the safety device has been installed therein;
  • FIG. 5 is a vertical cross-sectional view of the device, taken on the line 5-5 of FIG. 4;
  • FIG. 6 is a perspective view of a second form of the drain safety device.
  • the first form of drain safety device A includes a rigid sheet B in which a central opening 10 is formed that serves as an entrance to a depending cylindrical tube or shell C.
  • a tank D (FIG. 2) is provided, from the upper edges of which a circular flange 12 projects outwardly and is bonded to the lower surface of sheet B.
  • Tank D is substantially greater in depth and transverse cross section than the shell C, as may be seen in FIG. 2.
  • One or more second openings 14 are formed in tank D, located above the lower edge of the shell C.
  • the combined area of the openings 14 is preferably at least equal to the interior transverse cross section of the shell C in order that downward flow of fluid through the drain safety device A will not be impeded.
  • Sheet B, shell C, and tank D are preferably fabricated from resin impregnated glass fibers, although other materials resistant to moisture, water, and anti-freeze compounds may be used for this purpose if desired.
  • Each drain safety device A is prefabricated and delivered to the site where it will be installed in the form shown in FIG. 1.
  • Sheet B includes an annulus-shaped area 16 that slopes inwardly toward shell C to facilitate the flow of surface water into tank D.
  • the tank D includes a cylindrical side wall 18 and bottom 20.
  • a typical downwardly extending drain structure B such as found in existing refineries is shown in FIG. 5, and includes a continuous wall 22 which defines an interior, vertical passage 25 leading to an underground drain line (not shown).
  • Wall '22 is recessed at the top, as illustrated in FIG. 5, to define a continuous horizontal body shoulder 24.
  • the sheet B may be either formed to such size as to rest on the body shoulder 24, or if of too large area to so fit, the excess edge material may be trimmed from the sheet.
  • the formed or trimmed sheet B is positioned on the 3 shoulder 24, and a grated frame F (FIGS. 4 and 5) is then placed in the recessed portion 26 of the 'drain structure E.
  • the edge portions of the sheet are thereafter sandwiched between the frame F and body shoulder 24.
  • a mastic material G or other sealant can be applied to the upper and lower edge surfaces of the sheet B to seal with the body shoulder 24 and frame F.
  • drain safety device A After installation of the drain safety device A, water is discharged into the device until it overflows through the second opening 14. A body of water 28 remains in the tank D to serve as a seal and prevent upward discharge of explosive gases through passage 25 into the ambient atmosphere.
  • salt or other anti-freezing material may be added to the body of water 28 to prevent solidification thereof.
  • the lower edge of shell C is located a substantial distance above the bottom to provide a space 30 in which solids may accumulate without obstructing communication between first and second openings 10 and 14.
  • FIG. 6 A second form A of the drain safety device is shown in FIG. 6.
  • This second form A differs from form A, only in that the sheet B is circular rather than square or rectangular.
  • Elements of the second form A corresponding to like elements found in the first form A are identified in the drawing by the same numerals, but to which primes have been added.
  • Both the first and second forms A and A, respectively, are preferably brightly colored to visually indicate that drain structures in which they are installed will not discharge explosive vapors into the ambient atmosphere.
  • a safety device to prevent discharge of said vapors into the ambient atmosphere, which safety device includes:
  • a tank of substantially greater transverse cross section and depth than that of said tube which tank depends from said sheet surrounding said tube, with said tank having at least one second opening in a side portion thereof, with said second opening being disposed above the lower edge of said tube whereby after water has been added to said tank to the extent that it flows therefrom through said second opening the lower end of said tube is immersed in said water in said tank and acts as a seal to prevent discharge of said explosive vapors from said underground line into the ambient atmosphere, and said safety device only having the portion thereof sandwiched between said shoulder and grating subjected to a substantial compressive load when the wheel of a vehicle travels across said grating.
  • a drain safety device as defined in claim 1 wherein said sheet, tube and tank are formed as an integral unit from a rigid resin-containing material that is substantially impervious to the action of moisture and water.
  • a drain safety device as defined in claim 1 wherein a plurality of second openings are formed in said tank, with the combined area of said second openings being at least as great as the interior transverse cross-sectional area as that of said tube.
  • a drain safety device as defined in claim 1 wherein the lower edge of said tube is sufiiciently high above the bottom of said tank that a substantial amount of solid material may accumulate in the lower portion of said tank without obstructing communication between said first and second openings.
  • a drain safety device as defined in claim 1 wherein at least said sheet is of a bright, distinctive color to readily indicate that a particular drain structure is protected by said safety device.

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)
  • Revetment (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Sewage (AREA)
US773983A 1968-11-07 1968-11-07 Drain safety device Expired - Lifetime US3516541A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US77398368A 1968-11-07 1968-11-07

Publications (1)

Publication Number Publication Date
US3516541A true US3516541A (en) 1970-06-23

Family

ID=25099898

Family Applications (1)

Application Number Title Priority Date Filing Date
US773983A Expired - Lifetime US3516541A (en) 1968-11-07 1968-11-07 Drain safety device

Country Status (6)

Country Link
US (1) US3516541A (enrdf_load_stackoverflow)
JP (1) JPS4931224B1 (enrdf_load_stackoverflow)
CA (1) CA918531A (enrdf_load_stackoverflow)
DE (1) DE1955724A1 (enrdf_load_stackoverflow)
FR (1) FR2022825A1 (enrdf_load_stackoverflow)
GB (1) GB1284900A (enrdf_load_stackoverflow)

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3974599A (en) * 1971-12-08 1976-08-17 Indian Head Inc. Underground reinforced plastic enclosure
US4419231A (en) * 1981-07-23 1983-12-06 Friedl Edward L Ground surface drainage apparatus
US4682907A (en) * 1986-04-01 1987-07-28 Gaudin Carl J Self sealing sewer cover assembly
US4776722A (en) * 1986-04-01 1988-10-11 Gaudin Carl J Self sealing sewer cover assembly
US5015371A (en) * 1990-01-08 1991-05-14 Nsertaseal Corporation Safety device for sealing a drain assembly
US5028320A (en) * 1989-12-04 1991-07-02 Gaudin Carl J Sewer catch basin with gas seal for a petroleum refinery or chemical processing plant
US5062735A (en) * 1989-12-04 1991-11-05 Gaudin Carl J Self sealing domed sewer cover assembly
US5192156A (en) * 1991-05-28 1993-03-09 Nsertaseal Corporation Drain apparatus with liquid trap
US5197510A (en) * 1992-07-16 1993-03-30 Nsertaseal Corporation Apparatus for checking back pressure
US5458769A (en) * 1990-01-24 1995-10-17 Johannessen; Jorgen M. Floor drain
US6093314A (en) * 1998-06-05 2000-07-25 Wilson; Andrew Charles Drain insert for storm water sewer systems, and method of manufacture
US6180006B1 (en) * 1998-02-13 2001-01-30 George R. Whiteman Clarification and solid waste containment system and process
US6294095B1 (en) 2000-04-24 2001-09-25 Erosion Control Services, Inc. Silt filtration system
US6319397B1 (en) * 2000-07-20 2001-11-20 Shu-Yin Sun Draining device adapted to be disposed within a drain port
US20050166315A1 (en) * 2003-12-23 2005-08-04 Zurn Industries, Inc. Floor drain support plate
US20050183997A1 (en) * 2004-02-24 2005-08-25 Henry Happel Street curb filter basket system
US20050203468A1 (en) * 2002-01-15 2005-09-15 Zurn Industries, Inc. Drain support plate/under-deck clamp
US20060066098A1 (en) * 2004-09-24 2006-03-30 Yeager Bryan K Non-leak pool fixture and method for implementing
US20060087114A1 (en) * 2004-09-24 2006-04-27 Yeager Bryan K Non-leak pool fixture and method for implementing
US20130174921A1 (en) * 2011-11-18 2013-07-11 Schluter Systems L.P. Drain system with odor trap and related methods
US20130284282A1 (en) * 2011-01-05 2013-10-31 Dion Grant Sutherland In-Line Water Trap
USD768843S1 (en) * 2014-11-28 2016-10-11 Draingarde Inc. Catch basin cover
US10208884B2 (en) 2014-01-30 2019-02-19 Draingarde, Inc. Watershed protection device and system
WO2020098222A1 (zh) * 2018-11-15 2020-05-22 微山宏瑞电力科技有限公司 一种下水道防沼气爆炸系统
EP3825478A1 (en) * 2019-11-22 2021-05-26 Humberto Ernesto Scorza Cure Drain strainer for a drainpipe

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5113544A (enrdf_load_stackoverflow) * 1974-07-25 1976-02-03 Nitsuko Ltd
JPS5670389A (en) * 1979-11-08 1981-06-12 Souwa Kogyo Kk Control system of night deposit safe
GB2120296A (en) * 1982-01-20 1983-11-30 Peter Noel Henry Scarfe Trapped gully with rodding access
JPH0263177U (enrdf_load_stackoverflow) * 1988-10-31 1990-05-11
WO1999027199A1 (en) * 1997-11-19 1999-06-03 Ian Alexander Mackay Drain assembly

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US543617A (en) * 1895-07-30 Stench-trap
US2695678A (en) * 1946-02-23 1954-11-30 Martin A Sisk Surface drain
US2859875A (en) * 1955-11-14 1958-11-11 Wilkie James Trim drain cover
US3411628A (en) * 1966-02-21 1968-11-19 Nat Distillers Chem Corp Combination plastic-stainless steel sink strainer

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US543617A (en) * 1895-07-30 Stench-trap
US2695678A (en) * 1946-02-23 1954-11-30 Martin A Sisk Surface drain
US2859875A (en) * 1955-11-14 1958-11-11 Wilkie James Trim drain cover
US3411628A (en) * 1966-02-21 1968-11-19 Nat Distillers Chem Corp Combination plastic-stainless steel sink strainer

Cited By (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3974599A (en) * 1971-12-08 1976-08-17 Indian Head Inc. Underground reinforced plastic enclosure
US4419231A (en) * 1981-07-23 1983-12-06 Friedl Edward L Ground surface drainage apparatus
US4682907A (en) * 1986-04-01 1987-07-28 Gaudin Carl J Self sealing sewer cover assembly
US4776722A (en) * 1986-04-01 1988-10-11 Gaudin Carl J Self sealing sewer cover assembly
US5062735A (en) * 1989-12-04 1991-11-05 Gaudin Carl J Self sealing domed sewer cover assembly
US5028320A (en) * 1989-12-04 1991-07-02 Gaudin Carl J Sewer catch basin with gas seal for a petroleum refinery or chemical processing plant
US5015371A (en) * 1990-01-08 1991-05-14 Nsertaseal Corporation Safety device for sealing a drain assembly
US5458769A (en) * 1990-01-24 1995-10-17 Johannessen; Jorgen M. Floor drain
US5192156A (en) * 1991-05-28 1993-03-09 Nsertaseal Corporation Drain apparatus with liquid trap
US5197510A (en) * 1992-07-16 1993-03-30 Nsertaseal Corporation Apparatus for checking back pressure
US6180006B1 (en) * 1998-02-13 2001-01-30 George R. Whiteman Clarification and solid waste containment system and process
US6093314A (en) * 1998-06-05 2000-07-25 Wilson; Andrew Charles Drain insert for storm water sewer systems, and method of manufacture
US6294095B1 (en) 2000-04-24 2001-09-25 Erosion Control Services, Inc. Silt filtration system
US6319397B1 (en) * 2000-07-20 2001-11-20 Shu-Yin Sun Draining device adapted to be disposed within a drain port
US20050203468A1 (en) * 2002-01-15 2005-09-15 Zurn Industries, Inc. Drain support plate/under-deck clamp
US7784242B2 (en) * 2002-01-15 2010-08-31 Zurn Industries, Llc Drain support plate/under-deck clamp
US20050166315A1 (en) * 2003-12-23 2005-08-04 Zurn Industries, Inc. Floor drain support plate
US8146308B2 (en) 2003-12-23 2012-04-03 Zurn Industries, Llc Floor drain support plate
US7997038B2 (en) * 2003-12-23 2011-08-16 Zurn Industries, Llc Floor drain support plate
US20110023229A1 (en) * 2003-12-23 2011-02-03 Zurn Industries, Llc Floor Drain Support Plate
US7959799B2 (en) * 2004-02-24 2011-06-14 Henry Happel Street curb filter basket system
US20050183997A1 (en) * 2004-02-24 2005-08-25 Henry Happel Street curb filter basket system
US7571938B2 (en) * 2004-09-24 2009-08-11 Bryan Keith Yeager Non-leak pool fixture and method for implementing
US20060087114A1 (en) * 2004-09-24 2006-04-27 Yeager Bryan K Non-leak pool fixture and method for implementing
US20060066098A1 (en) * 2004-09-24 2006-03-30 Yeager Bryan K Non-leak pool fixture and method for implementing
US20130284282A1 (en) * 2011-01-05 2013-10-31 Dion Grant Sutherland In-Line Water Trap
US8887753B2 (en) * 2011-01-05 2014-11-18 Amphicom Investments Cc In-line water trap
US20130174921A1 (en) * 2011-11-18 2013-07-11 Schluter Systems L.P. Drain system with odor trap and related methods
US10208884B2 (en) 2014-01-30 2019-02-19 Draingarde, Inc. Watershed protection device and system
USD768843S1 (en) * 2014-11-28 2016-10-11 Draingarde Inc. Catch basin cover
USD792962S1 (en) 2014-11-28 2017-07-25 Draingarde Inc. Catch basin cover
WO2020098222A1 (zh) * 2018-11-15 2020-05-22 微山宏瑞电力科技有限公司 一种下水道防沼气爆炸系统
EP3825478A1 (en) * 2019-11-22 2021-05-26 Humberto Ernesto Scorza Cure Drain strainer for a drainpipe

Also Published As

Publication number Publication date
JPS4931224B1 (enrdf_load_stackoverflow) 1974-08-20
DE1955724A1 (de) 1970-06-04
CA918531A (en) 1973-01-09
GB1284900A (en) 1972-08-09
FR2022825A1 (enrdf_load_stackoverflow) 1970-08-07

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