US3888427A - Disposal unit - Google Patents

Disposal unit Download PDF

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Publication number
US3888427A
US3888427A US398695A US39869573A US3888427A US 3888427 A US3888427 A US 3888427A US 398695 A US398695 A US 398695A US 39869573 A US39869573 A US 39869573A US 3888427 A US3888427 A US 3888427A
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US
United States
Prior art keywords
plate
coacting
disposal unit
grinder
grinding
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
US398695A
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English (en)
Inventor
Rene Derouineau
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Individual
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Individual
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Publication date
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Publication of US3888427A publication Critical patent/US3888427A/en
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
    • E03C1/12—Plumbing installations for waste water; Basins or fountains connected thereto; Sinks
    • E03C1/26—Object-catching inserts or similar devices for waste pipes or outlets
    • E03C1/266—Arrangement of disintegrating apparatus in waste pipes or outlets; Disintegrating apparatus specially adapted for installation in waste pipes or outlets
    • E03C1/2665—Disintegrating apparatus specially adapted for installation in waste pipes or outlets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/0084—Disintegrating by knives or other cutting or tearing members which chop material into fragments specially adapted for disintegrating garbage, waste or sewage
    • B02C18/0092—Disintegrating by knives or other cutting or tearing members which chop material into fragments specially adapted for disintegrating garbage, waste or sewage for waste water or for garbage

Definitions

  • pans of the closets or other public conveniencies are connected to mains. septic tanks or recovery reservoirs, it is necessary for the matter to reach them in finely comminuted form it rapid clogging of the discharge pipes from the pans is to be avoided.
  • all kinds of materials can be thrown into the parts, as for example newspaper, sanitary towels or pads and other objects such as old combs. The consequence is that very frequently the discharge pipes of the pans are clogged as a consequence of swelling of absorbent materials or the jamming of foreign bodies.
  • disposal units which are interposed between the discharge pipe of the closet and the discharge sewer or reservoir and which have for their object merely to grind the fecal or other matter before this is admitted into the said sewers or recovery reservoirs.
  • These disposal units generally comprise a grinding member formed by a screw mounted in a vertical tube. of which one end opens into a chamber in which the grinding of the materials takes place, the screw being slightly recessed at this end, while the other end is connected to a pump capable of withdrawing the materials from the grinding chamber so as to evacuate them towards the sewer or recovery reservoir or tank. the said materials being ground as they pass through at the level of the screw.
  • this type of disposal unit has numerous drawbacks. As the number of blades of the screw are limited. it is necessary to drive the screw with a high speed of rotation so as to grind the material as efficiently as possible between the screw and the internal wall of the vertical withdrawal tube. In addition, this type of grinder is fragile and may become inoperative when a relatively hard object, such as a comb, is jammed between one blade of the screw and the tube, it being possible for the jamming action very quickly to cause the destruction of the screw, which is being constantly rotated.
  • a relatively hard object such as a comb
  • the present invention has for its object to avoid, or at least reduce, the aforesaid disadvantages and to provide a grinder or disposal unit suitable for grinding most materials liable to be thrown into the pans of water closets.
  • a grinder or disposal unit comprising a body having an inlet orifice for material to be ground and a discharge orifice for ground material, a grinding member having teeth on one ofits faces and a coaeting member. means for providing a relative movement between the grinding member and coacting member. wherein the coact ing member includes at least one notch through which at least one tooth of the grinding member is capable of being displaced.
  • the grinding member is formed by a rotatable grid which is provided with teeth substantially perpendicular to the grid, while the coacting member is formed by a thin plate disposed in a plane that is substantially perpendicular to the plane of the grid and provided on its bottom edge with a series of notches and capable of pivoting away from the grid from a stop position in which it is substantially perpendicular to the grinding grid, so that the materials admitted between the grid and plate are finely ground with the passage of the teeth through the corresponding notches.
  • One advantage of the disposal unit of the present invention consists in that, in practice, the fecal matter and other soft materials are finely ground during their first forced passage through the notches, while the other materials which are more difficult to grind or which are harder are progressively destroyed or shredded.
  • a sanitary towel cannot be shredded in the first passage and offers resistance to the movement of the teeth through the notches.
  • the thin plate pivots in the appropriate direction under the joint action of the sanitary towel and the teeth and enlarges the passage available to the said sanitary towel. which is once again driven, always in the same direction of rotation, towards the plate.
  • the sanitary towel is progressively destroyed by the repeated passages beneath the plate until it no longer offers any resistance to the passage into the notches of the plate, this latter being in its position of equilibrium. after which it is discharged with the other ground materials towards the sewer or recovery reservoir or tank.
  • the grid is provided with a large number of discharge orifices and is driven at a low speed of rotation. This makes it possible for the ground materials or the materials for which there is no need for grinding to be discharged progressively, due to being of smaller dimensions than the diameter ofthe orifices, and also to avoid textile or other threads wrapping around the grinding teeth or parts of the plate situated between the notches.
  • FIG. 1 is a top plan view of a grinder or disposal unit according to one embodiment of the invention, the cover thereof being removed.
  • FIG. 2 is a sectional view on the line Il-II of FIG. 1, and
  • FIG. 3 is a sectional view on the line III-Ill of FIG. 2.
  • a disposal unit 1 is associated with a suction pump 2 for ground materials and a motor 3 by which the parts of the said unit are driven in rotation.
  • the pump 2 and the motor 3 can be constructed as a single element, one part forming the pump and another part forming the driving motor.
  • the disposal unit 1 comprises a vertical cylindrical body 4 which is terminated at one of its ends by a base 5 and is closed at its other end by a cover or plug 6 provided with an O-ring sealing joint 7.
  • the pump 2 which is known per se, is connected by a suction pipe 8 for the ground materials to the interior of the grinder body 4, while a supply pipe 9 for materials to be ground and connected to a lavatory pan also opens into the interior of the said body 4, but at a higher level than that of the suction pipe 8 (FIGS. 2 and 3
  • a grinding member which is formed by a circular horizontal plate 10 is disposed inside the body 4, situated above the level of the opening of the suction pipe 8.
  • a driving shaft 11 therefore extends through the base 5 of the body and has keyed thereto a toothed wheel 12 meshing with a toothed wheel 13 of smaller diameter and mounted on a shaft 14 which is driven in rotation by the driving motor 3.
  • the free end of the shaft 11 is supported by a bearing 15 mounted in a recess of a supporting base 16 which is made fast with the base 5 by posts and screws 17 (FIG. 2).
  • the circular plate 10 is formed by a grid having a di ameter slightly smaller than the internal diameter of the body 4 and provided with orifices 18 between which are provided vertical grinding teeth 19 disposed along concentric circles 20, the centre of which is coincident with the centre of rotation of the shaft 11.
  • a retractable coacting member 21 which is formed by a plate of small thickness disposed in a plane substantially perpendicular to the plane of the grid.
  • the thin plate is secured to a shaft which is capable of turning in a single direction through a specified angle, the blocking of the plate in its position of equilibrium, ie in the vertical position in relation to the shaft 22, being assured by any suitable member, such as a calibrated spring 23 supported between the shaft and a fixed stop 24.
  • Notches 25 are formed on the bottom edge of the plate, which are arranged in such a way that with the rotation of the grid 10, the teeth 19 disposed along a diameter of the largest circle simultaneously traverse the plate 21, each tooth 19 on the same radius passing through a notch 25.
  • the plate 21 has a bottom edge 21a of a length that is substantially equal to the radius of the largest circle and situated very close to the grid 10, so that the materials to be ground are unable to pass between the grid and the bottom edge 21a of the plate 21 when the latter is in abutment.
  • the function of the disposal unit according to the invention is as follows.
  • the grid is driven at a low speed of rotation, which is of the order of to 200 r.p.m., by an appropriate choice of the toothed wheels 12 and 13, which makes it necessary only to have a lowpower motor, for example, of the order of about lOU watts.
  • the means of controlling the motor and the pump have not been shown and are known in existing types of sanitary unit.
  • This electromagnetic valve is controlled from a push button which simultaneously controls the starting up of the disposal unit according to the inventionv
  • the disposal unit is also energised, discharging and grinding the materials which are in the pan and which are diluted with water. This arrangement permits a substantial reduction in the cost price of the sanitary unit and the consumption of water which is used therein.
  • a grinder for a disposal unit or the like comprising a body having an inlet orifice for material to be ground and an outlet orifice for ground material, grinding apparatus interposed between said inlet and outlet orifices, said apparatus including a grinding plate member formed with a waste support surface having perforations formed therethrough. said plate member including tooth portions extending from said waste support surface. a coaeting member disposed adjacent the waste support surface of said plate member. said coaeting member including at least one notch portion, drive means for relatively moving said members in a predetermined path progressively to shift said tooth portions of said plate member through said at least one notch of said coacting member. and movable mounting means interposed between said members for enabling relative separating movements of said eoacting member and said waste support surface responsive to passage between said members of a large solid waste object.
  • a grinder in accordance with claim 2 wherein said coacting member comprises a plate pivotally secured to said body, stop means extending from said body. said spring means normally yieldingly urging said plate against said stop means.
  • a disposal unit accordance with claim I and including electromagnetic valve means for releasing waste to said inlet orifice and a flush release member adapted simultaneously to energize said electromagnetic valve means and said drive means of said grinding apparatus.
  • a disposal unit in accordance with claim I wherein said plate member is rotated relative to said eoaeting member at a speed of rotation of from about to 200 rpm.

Landscapes

  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Disintegrating Or Milling (AREA)
US398695A 1972-09-26 1973-09-19 Disposal unit Expired - Lifetime US3888427A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7235059A FR2200759A5 (de) 1972-09-26 1972-09-26

Publications (1)

Publication Number Publication Date
US3888427A true US3888427A (en) 1975-06-10

Family

ID=9105136

Family Applications (1)

Application Number Title Priority Date Filing Date
US398695A Expired - Lifetime US3888427A (en) 1972-09-26 1973-09-19 Disposal unit

Country Status (9)

Country Link
US (1) US3888427A (de)
JP (2) JPS4971767A (de)
AU (1) AU475109B2 (de)
BR (1) BR7307436D0 (de)
CA (1) CA995853A (de)
DE (1) DE2348202A1 (de)
FR (1) FR2200759A5 (de)
GB (1) GB1416054A (de)
IT (1) IT993133B (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4206879A (en) * 1978-08-10 1980-06-10 Gebrueder Buehler Ag Agitator mill
US4401278A (en) * 1980-03-28 1983-08-30 Hitachi Shipbuilding & Engineering Co., Ltd. Apparatus for granulating coal
US5722604A (en) * 1995-04-18 1998-03-03 Dudley; Russell D. Metal scrap shredder
US20050256464A1 (en) * 2002-04-11 2005-11-17 Gilbert Pallas Apparatus for washing the colon

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3125309C2 (de) * 1981-06-27 1986-07-24 Kurt 4513 Belm Rößler Zerkleinerungsvorrichtung für Abfälle
CN107999228A (zh) * 2017-11-30 2018-05-08 江苏永尚能源科技有限公司 一种高效的厨房垃圾处理设备
CN110237912B (zh) * 2019-07-15 2021-04-06 广西宾阳力拓新型建材有限公司 一种多级循环加工并且预打散的粉煤灰超细粉磨系统
CN113019613A (zh) * 2021-02-26 2021-06-25 丽水腾创新材料有限公司 一种基于离心力调节粉碎半径的聚氯乙烯粉碎设备

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2852199A (en) * 1954-07-02 1958-09-16 Frederick J Holzer Food waste disposer
US2852200A (en) * 1955-08-01 1958-09-16 Frederick J Holzer Food waste disposer

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2852199A (en) * 1954-07-02 1958-09-16 Frederick J Holzer Food waste disposer
US2852200A (en) * 1955-08-01 1958-09-16 Frederick J Holzer Food waste disposer

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4206879A (en) * 1978-08-10 1980-06-10 Gebrueder Buehler Ag Agitator mill
US4401278A (en) * 1980-03-28 1983-08-30 Hitachi Shipbuilding & Engineering Co., Ltd. Apparatus for granulating coal
US5722604A (en) * 1995-04-18 1998-03-03 Dudley; Russell D. Metal scrap shredder
US20050256464A1 (en) * 2002-04-11 2005-11-17 Gilbert Pallas Apparatus for washing the colon

Also Published As

Publication number Publication date
DE2348202A1 (de) 1974-04-04
GB1416054A (en) 1975-12-03
AU6056273A (en) 1975-03-27
AU475109B2 (en) 1976-08-12
JPS5397770U (de) 1978-08-08
IT993133B (it) 1975-09-30
CA995853A (en) 1976-08-31
JPS4971767A (de) 1974-07-11
FR2200759A5 (de) 1974-04-19
BR7307436D0 (pt) 1974-08-15

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