US3535713A - Cleaning system for portable toilet - Google Patents

Cleaning system for portable toilet Download PDF

Info

Publication number
US3535713A
US3535713A US782063A US3535713DA US3535713A US 3535713 A US3535713 A US 3535713A US 782063 A US782063 A US 782063A US 3535713D A US3535713D A US 3535713DA US 3535713 A US3535713 A US 3535713A
Authority
US
United States
Prior art keywords
holding tank
main holding
bowl
filter
pump
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
Application number
US782063A
Other languages
English (en)
Inventor
Robert C Helke
Charles E Vangilder
Ralph H Drew Jr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kidde Inc
Koehler Dayton Inc
Original Assignee
Koehler Dayton Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Koehler Dayton Inc filed Critical Koehler Dayton Inc
Application granted granted Critical
Publication of US3535713A publication Critical patent/US3535713A/en
Assigned to KIDDE, INC. A CORP. OF DE. FORMERLY KOEHLER-DAYTON, INC. A CORP. OF OH. reassignment KIDDE, INC. A CORP. OF DE. FORMERLY KOEHLER-DAYTON, INC. A CORP. OF OH. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: KODA, INC.
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D5/00—Special constructions of flushing devices, e.g. closed flushing system
    • E03D5/016—Special constructions of flushing devices, e.g. closed flushing system with recirculation of bowl-cleaning fluid

Definitions

  • a portable toilet including a main holding tank, a toilet bowl emptying into the holding tank, and means to recirculate filtered liquid from the main holding tank through a flushing manifold surrounding the bowl includes means for passing cleaning water simultaneously through the filter, through the flushing manifold, and to spray the cleaning water into the main holding tank.
  • the portable toilet also includes a drain opening in. the bottom surface which is sealed by a portion of the filter assembly so that cleaning of the unit is facilitated.
  • This invention relates to an improved system for clean.- ing self-contained, recirculating toilets.
  • toilets include a main holding tank, a toilet bowl emptying into the holding tank, a flushing manifold surrounding the bowl, and means for drawing filtered liquid from the main holding tank and directing the liquid into the flushing manifold.
  • a static filter is located within the main holding tank, and the lower portion of the filter is provided with a seal which closes one end of the filter and which also closes the drain opening in the tank.
  • a pump is located within the filter to draw liquid from the main holding tank and direct it upwardly into the flushing manifold.
  • the pump, pump motor, filter and the drain valve seal are all mounted on a single member to facilitate handling and to lower the cost of construction, as described in the above mentioned application Ser. No. 782,240.
  • Cleaning of the pump and filter, the main holding tank, the flushing manifold, and the toilet bowl is accomplished in the present invention by directing clean flushing water into the pipe which connect the pump with the flushing manifold.
  • clean water is directed into the flushing manifold and then downwardly across the bowl into the main holding tank, and at the same time a portion of this water is directed downwardly through the pump and out through the filter in a reverse direction to cause cleaning of those elements.
  • Cleaning water is also applied to a spray nozzle located within the main holding tank so that the side walls of that tank are also cleaned.
  • the member supporting the pump, pump motor, and filter may be loosened from the main holding tank and the drain seal removed so that the cleaning water can drain from the main holding tank through the now open drain opening.
  • FIG. 1 is a plan view of a self-contained portable toilet showing the location of the toilet bowl, pump motor, and spray nozzle, with a portion of the flushing manifold surrounding the toilet bowl shown in cross section;
  • FIG. 2 is a cross sectional view taken along line 2-2 in FIG. 1;
  • FIG. 3 is an elevational view taken along line 3-3 in FIG. 1, with a portion of the cleaning water inlet hose in cross section to show the location of a check valve;
  • FIG. 4 is a view, partly in cross section, of the spray nozzle located within the main holding tank.
  • a self-contained, recirculating toilet includes a main holding tank 10, preferably molded from plastic or fiberglass, having a lower section 11 and an upper section 12.
  • a main holding tank 10 preferably molded from plastic or fiberglass, having a lower section 11 and an upper section 12.
  • one hand hold 13 is shown formed in the lower section 11, while a second hand hold, not shown, is provided on the other side of the tank to facilitate the removal of the unit from its operating position.
  • the toilet seat under which the unit is positioned when in use.
  • a bowl 15 is mounted to the upper section 12 and has an opening 16 through which the contents of the bowl are discharged into the main holding tank 10.
  • the bowl 15 may be formed from a separate piece of plastic or fiberglass, or may be integrally formed with the upper section 12, as explained in the above mentioned copending application Ser. No. 782,062.
  • a flushing manifold 20 surrounds the bowl 15 and directs filtered liquid drawn from the main holding tank 10 around the bowl 15 to cause cleaning thereof and to assist the dischange of the contents of the bowl into the main holding tank.
  • a preferred embodiment of this flushing manifold 20 is described in more detail in the above mentioned application Ser. No. 782,062.
  • a pump 22 is located within the main holding tank 10 and is surrounded by a filter 23.
  • a motor 25 turns the impeller 26 in the pump to draw liquid from the main holding tank, through the filter 23 and direct it upwardly through hoses 27 and 28 into the flushing manifold 20.
  • the pump 22, the filter 23, and the pump motor -26 are all mounted on a single member shown generally at 30, which is secured to the top of the main holding tank by quick release fasteners 31.
  • a seal is mounted over the bottom end of the filter 23 and fits within a drain opening 36 when the member 30 is locked in place on the main holding tank.
  • a handle 38 above the motor 25 may be used as an aid in removing the member 30 from the main holding tank.
  • a primary feature of the present invention is in the use of means for simultaneously cleaning the filter, the bowl, and the interior of the tank.
  • This means includes an inlet, shown generally at 40 in FIG. 1, into which clean water may be applied, as from a hose 41.
  • a cap 42 covers the inlet 40 when not in use. Clean water then flows through a hose 43 to a spray nozzle, shown at 45, where a portion of the clean water is sprayed into the interior of the tank 10.
  • the spray nozzle 45 includes a rotating head 46 (FIG. 4) which has an opening 47 formed therein on one side and which receives a portion of the clean water from the hose 43 which is directed downwardly through pas- 3 sageway 48. Since the opening 47 is on one side of the head '46, a spray of water will be formed which causes the head to rotate about the pin 50 and spray the water into the interior of the main holding tank 10. The head 46 is held in place on the pin 50 by a retaining ring 51.
  • Cleaning water also flows through hose 53 to a connection formed in the hose 28.
  • a one way valve (FIG. 3) is installed in the hose 53 to prevent any flushing liquid drawn from the main holding tank from flowing backwards through the hose 53 during recirculation of the flushing liquid, and therefore the check valve prevents any possible contamination of the source of clean water.
  • the arrangement shown also prevents liquid from being siphoned from the main holding tank 10 since the upper portion of the hose 28 is vented to the atmosphere through the flushing manifold 20.
  • clean water from the hose 53 is directed both downwardly through the hose 27 and through the pump 22 and filter 23 into the main holding tank 10 to clean those elements, and at the same time a portion of the cleaning water will flow upwardly through hose 2 8, through the flushing manifold 20, and down across the bowl 15. Since the cleaning liquid is flowing through the pump 22 and filter 23 in a reverse direction, these elements will be flushed clean.
  • the hose 28 may be removed from connection 57 in the member 30, which joins hoses 27 and 28, by removing or loosening hose clamp 60. When this is done, the entire member 30 may be removed from the main holding tank 10 for cleaning at a location remote from the toilet.
  • a self-contained sewage system including a main holding tank, a toilet bowl emptying into said tank, a flushing manifold surrounding said bowl, a filter, and a pump to draw liquid from said tank and force it into said manifold to flush said bowl, the improvement comprising means for cleaning said filter, said bowl, and said tank,
  • said means comprising inlet means adapted to receive cleaning Water and direct said water into a conduit connecting said flushing manifold to said pump, said conduit including a oneway valve to prevent the flow of flushing liquid into said inlet means;

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Sanitary Device For Flush Toilet (AREA)
  • Special Spraying Apparatus (AREA)
US782063A 1968-12-09 1968-12-09 Cleaning system for portable toilet Expired - Lifetime US3535713A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US78206368A 1968-12-09 1968-12-09

Publications (1)

Publication Number Publication Date
US3535713A true US3535713A (en) 1970-10-27

Family

ID=25124836

Family Applications (1)

Application Number Title Priority Date Filing Date
US782063A Expired - Lifetime US3535713A (en) 1968-12-09 1968-12-09 Cleaning system for portable toilet

Country Status (3)

Country Link
US (1) US3535713A (enrdf_load_stackoverflow)
JP (1) JPS4944503B1 (enrdf_load_stackoverflow)
GB (1) GB1288787A (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090025756A1 (en) * 2007-07-24 2009-01-29 Zanolli George E Cleaning wastewater holding tanks
US7523512B1 (en) 2005-02-18 2009-04-28 Gamajet Cleaning Systems, Inc. System and method for cleaning restrooms

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0686613U (ja) * 1993-06-02 1994-12-20 尉 岩切 座 席

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3440669A (en) * 1967-04-03 1969-04-29 Carl F Boester Household toilet waste disposal unit and method

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3440669A (en) * 1967-04-03 1969-04-29 Carl F Boester Household toilet waste disposal unit and method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7523512B1 (en) 2005-02-18 2009-04-28 Gamajet Cleaning Systems, Inc. System and method for cleaning restrooms
US20090025756A1 (en) * 2007-07-24 2009-01-29 Zanolli George E Cleaning wastewater holding tanks
US7867336B2 (en) 2007-07-24 2011-01-11 Zanolli George E Cleaning wastewater holding tanks

Also Published As

Publication number Publication date
GB1288787A (enrdf_load_stackoverflow) 1972-09-13
JPS4944503B1 (enrdf_load_stackoverflow) 1974-11-28

Similar Documents

Publication Publication Date Title
US2531370A (en) Liquid discharging and collecting apparatus for cleaning
US4368550A (en) Method and apparatus for winterizing a swimming pool
JPH01111933A (ja) 真空トイレット装置
US3707737A (en) Apparatus for cleaning submerged surfaces
US3712331A (en) Holding tank evacuating apparatus for a recreational vehicle
US6012678A (en) Galley vacuum waste disposal system
US2900079A (en) Submersible pump filter-skimmer for swimming pools
US5141017A (en) Recreational vehicle sewage removal adapter with back-flushing capability
US6035455A (en) Portable power plumbing plunger
US3538518A (en) Flushing manifold for portable toilets
US3897599A (en) Holding tank with quick disconnect valve
US4736968A (en) Coupling device for coupling a hose to a drain pipe
US6539962B2 (en) Holding tank cleaning device
US2288247A (en) Vacuum breaker
US3797508A (en) Portable pool cleaner
US3535713A (en) Cleaning system for portable toilet
US4527295A (en) Tank flushing apparatus
US5493753A (en) Vacuum cleaning system with water extraction lid
US3545011A (en) Sewage system
US3139100A (en) Tank sprayer
US7036524B2 (en) Waste disposal system for recreational vehicles
US5193245A (en) Apparatus for opening drains
JPS63107714A (ja) 液槽内の浄化装置
US3471884A (en) Implement for cleaning the walls of a swimming pool
US9404247B2 (en) Manual toilet flushing apparatus with an odor reducing fresh water inlet valve assembly

Legal Events

Date Code Title Description
AS Assignment

Owner name: KIDDE, INC. A CORP. OF DE. FORMERLY KOEHLER-DAYTON

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:KODA, INC.;REEL/FRAME:003954/0138

Effective date: 19820105

Owner name: KIDDE, INC. A CORP. OF DE. FORMERLY KOEHLER-DAYTON

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST. EFFECTIVE DATE;ASSIGNOR:KODA, INC.;REEL/FRAME:003954/0138

Effective date: 19820105