CA2355811A1 - Manure transfer apparatus with spring biased guillotine door - Google Patents
Manure transfer apparatus with spring biased guillotine door Download PDFInfo
- Publication number
- CA2355811A1 CA2355811A1 CA002355811A CA2355811A CA2355811A1 CA 2355811 A1 CA2355811 A1 CA 2355811A1 CA 002355811 A CA002355811 A CA 002355811A CA 2355811 A CA2355811 A CA 2355811A CA 2355811 A1 CA2355811 A1 CA 2355811A1
- Authority
- CA
- Canada
- Prior art keywords
- guillotine door
- manure
- hydraulic
- hydraulic cylinder
- guillotine
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B7/00—Piston machines or pumps characterised by having positively-driven valving
- F04B7/02—Piston machines or pumps characterised by having positively-driven valving the valving being fluid-actuated
- F04B7/0266—Piston machines or pumps characterised by having positively-driven valving the valving being fluid-actuated the inlet and discharge means being separate members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B15/00—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts
- F04B15/02—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts the fluids being viscous or non-homogeneous
- F04B15/023—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts the fluids being viscous or non-homogeneous supply of fluid to the pump by gravity through a hopper, e.g. without intake valve
Description
MANURE TRANSFER APPARATUS WITH SPRING BIASED
GUILLOTINE DOOR
FIELD OF THE INVENTION
The present invention relates to an improved underground apparatus for removing liquid and semi-liquid manure from barns or other animal housing structures.
BACKGROUND OF THE INVENTION
Referring to Figures 1 and 2, there is shown a known manure transfer apparatus 10 for pumping manure from a building or barn 12 through an underground conduit 14, to a remotely located storage reservoir 16 or collection site. The apparatus 10 has a collection hopper 18 located below the building's floor, into which manure and waste from the building's floor is pushed or scraped. Manure falls down through a vertical portion 20 of the hopper 18 and into a collection chamber 22. The collection chamber 22 communicates with a pumping chamber 24 from which it is separated by a first guillotine door 26. The first guillotine door 26 is actuated by means of a hydraulic cylinder 28. The pumping chamber 24 communicates with a pumping tube 30 which includes a piston actuated by a hydraulic cylinder 32. The pumping tube 30 is preferably located above the pumping chamber 24. The piston mounted within the pumping tube 30 is used for sucking manure into and pushing manure out of the same. The pumping chamber 24 also communicates with the underground conduit 14 from which it is separated by a second guillotine door 34. The second guillotine door 34 is actuated by means of another hydraulic cylinder 36. The hydraulic cylinders 28, 36 and the pumping tube 30 are preferably located above the pumping chamber 24 in order to provide easy access for maintenance and repair purposes.
The operation of the manure transfer apparatus 10 is preferably carried out automatically by means of a control circuit or control valves (not shown).
GUILLOTINE DOOR
FIELD OF THE INVENTION
The present invention relates to an improved underground apparatus for removing liquid and semi-liquid manure from barns or other animal housing structures.
BACKGROUND OF THE INVENTION
Referring to Figures 1 and 2, there is shown a known manure transfer apparatus 10 for pumping manure from a building or barn 12 through an underground conduit 14, to a remotely located storage reservoir 16 or collection site. The apparatus 10 has a collection hopper 18 located below the building's floor, into which manure and waste from the building's floor is pushed or scraped. Manure falls down through a vertical portion 20 of the hopper 18 and into a collection chamber 22. The collection chamber 22 communicates with a pumping chamber 24 from which it is separated by a first guillotine door 26. The first guillotine door 26 is actuated by means of a hydraulic cylinder 28. The pumping chamber 24 communicates with a pumping tube 30 which includes a piston actuated by a hydraulic cylinder 32. The pumping tube 30 is preferably located above the pumping chamber 24. The piston mounted within the pumping tube 30 is used for sucking manure into and pushing manure out of the same. The pumping chamber 24 also communicates with the underground conduit 14 from which it is separated by a second guillotine door 34. The second guillotine door 34 is actuated by means of another hydraulic cylinder 36. The hydraulic cylinders 28, 36 and the pumping tube 30 are preferably located above the pumping chamber 24 in order to provide easy access for maintenance and repair purposes.
The operation of the manure transfer apparatus 10 is preferably carried out automatically by means of a control circuit or control valves (not shown).
In the aspiration cycle, the first guillotine door 26 is open and manure is sucked down through the vertical portion of the hopper 18 by lifting the piston within the pumping tube 30. In the evacuation cycle, the first guillotine door 26 is closed by lowering the corresponding hydraulic cylinder 28. Then, the second guillotine door 34 is opened by elevating the corresponding hydraulic cylinder 36. Then, the hydraulic cylinder 32 is actuated to lower the piston within the pumping tube 30 and thus to cause manure to be pushed out into the underground conduit 14 toward the remote reservoir 16.
1 o One problem with the above manure transfer apparatus 10 is that, if for some reason the second guillotine door 34 is left in an open or a partially open position, then manure from the remote reservoir 16 flows back into the pumping chamber 24. If, at the same time, the first guillotine door 26 is also left in an open position (if, for example, in the case of a power failure), the manure stored in reservoir 16 may flow back into the barn 12, by gravity. Such may occur if the operator or the control system because of a power failure, does not stop the apparatus at the end of the evacuation cycle.
A solution to this problem has been to position a flapper valve 38 at the end of the underground conduit 14 just below the remote reservoir 16. The flapper valve 38 is normally closed so as to impede a back flow of manure into the pumping chamber 24. Unfortunately, this solution is not entirely satisfactory as the flapper valve 38 can also become stuck in an open position and it is hard to reach for verification or repair.
SUMMARY OF THE INVENTION
It is therefore an object of the present invention to provide an improved manure transfer apparatus that does not have the drawbacks of the above-mentioned 3 0 prior art manure transfer apparatus, in particular a manure back flow problem.
According to the present invention, that object is achieved with a manure transfer apparatus for transferring manure from a first location to a second remote location, comprising:
a hopper at the first location for receiving the manure;
a collection chamber communicating with the hopper for receiving the manure;
a pumping chamber communicating with the collection chamber, the pumping chamber having an inlet and an outlet;
a first guillotine door positioned between the collection chamber and the inlet of the pumping chamber, the first guillotine door being movable between open and closed positions;
a first hydraulic cylinder connected to the first guillotine door for opening and closing the first guillotine door by means of hydraulic conduits;
a second guillotine door positioned between the outlet of the pumping chamber and a conduit communicating to the second remote location, the second guillotine door being movable between open and closed positions;
a second hydraulic cylinder connected to the second guillotine door for opening and closing the second guillotine door by means of hydraulic conduits;
a pumping tube communicating with the pumping chamber;
2 0 a piston activated by a hydraulic cylinder and positioned within the pumping tube for sucking manure into, and pushing manure out of the pumping tube; and wherein:
at least one of first and second hydraulic cylinders is connected to a 2 5 biasing spring that forces it to an extended position with the corresponding guillotine door in the closed position; and a small by-pass conduct is mounted between the hydraulic conduits of said at least one of the first and second hydraulic cylinders whereby if pressure in the hydraulic conduits of said at least one of the 3 0 first and second hydraulic cylinders drops below a predetermined threshold in a predetermined period of time, the pressure becomes equalized between the hydraulic conduits of said at least one of the first and second hydraulic cylinders, thereby allowing the biasing spring to force the corresponding guillotine door to close.
The invention as well as its numerous advantages will be better understood by the following non-restrictive description of a preferred embodiment made in reference to the appending drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
1 o Figure 1 is a perspective view of a known manure transfer apparatus;
Figure 2 is a side cross sectional view of the known manure transfer apparatus shown in Figure 1 with an underground conduit leading to a remote reservoir;
Figure 3 is a perspective view of the manure transfer apparatus according to a preferred embodiment of the present invention;
Figures 4 and 5 are side cross sectional views of a hydraulic piston actuating a second guillotine door of the manure transfer apparatus of the preferred 2 0 embodiment of the present invention in respectively open and closed positions;
and Figure 6 is an enlarged view of a small by-pass conduct shown in encircled portion A of Figure 5.
DETAILED DESCRIPTION OF THE OF THE INVENTION
Referring to Figure 3, there is shown a manure transfer apparatus 100 according to a preferred embodiment of the present invention. The manure 3 o transfer apparatus 100 is nearly identical to the one described in the background of the invention, except for a modification in the hydraulic cylinder 36 of the second guillotine door 34. As shown, a biasing spring 114 is connected above of the rod of the hydraulic cylinder 36. Thereby, unless the hydraulic cylinder 36 is hydraulically forced to be contracted, the biasing spring 114 will push down the hydraulic cylinder 36 to its extended position and this forces the second guillotine door 34 to be closed.
1 o One problem with the above manure transfer apparatus 10 is that, if for some reason the second guillotine door 34 is left in an open or a partially open position, then manure from the remote reservoir 16 flows back into the pumping chamber 24. If, at the same time, the first guillotine door 26 is also left in an open position (if, for example, in the case of a power failure), the manure stored in reservoir 16 may flow back into the barn 12, by gravity. Such may occur if the operator or the control system because of a power failure, does not stop the apparatus at the end of the evacuation cycle.
A solution to this problem has been to position a flapper valve 38 at the end of the underground conduit 14 just below the remote reservoir 16. The flapper valve 38 is normally closed so as to impede a back flow of manure into the pumping chamber 24. Unfortunately, this solution is not entirely satisfactory as the flapper valve 38 can also become stuck in an open position and it is hard to reach for verification or repair.
SUMMARY OF THE INVENTION
It is therefore an object of the present invention to provide an improved manure transfer apparatus that does not have the drawbacks of the above-mentioned 3 0 prior art manure transfer apparatus, in particular a manure back flow problem.
According to the present invention, that object is achieved with a manure transfer apparatus for transferring manure from a first location to a second remote location, comprising:
a hopper at the first location for receiving the manure;
a collection chamber communicating with the hopper for receiving the manure;
a pumping chamber communicating with the collection chamber, the pumping chamber having an inlet and an outlet;
a first guillotine door positioned between the collection chamber and the inlet of the pumping chamber, the first guillotine door being movable between open and closed positions;
a first hydraulic cylinder connected to the first guillotine door for opening and closing the first guillotine door by means of hydraulic conduits;
a second guillotine door positioned between the outlet of the pumping chamber and a conduit communicating to the second remote location, the second guillotine door being movable between open and closed positions;
a second hydraulic cylinder connected to the second guillotine door for opening and closing the second guillotine door by means of hydraulic conduits;
a pumping tube communicating with the pumping chamber;
2 0 a piston activated by a hydraulic cylinder and positioned within the pumping tube for sucking manure into, and pushing manure out of the pumping tube; and wherein:
at least one of first and second hydraulic cylinders is connected to a 2 5 biasing spring that forces it to an extended position with the corresponding guillotine door in the closed position; and a small by-pass conduct is mounted between the hydraulic conduits of said at least one of the first and second hydraulic cylinders whereby if pressure in the hydraulic conduits of said at least one of the 3 0 first and second hydraulic cylinders drops below a predetermined threshold in a predetermined period of time, the pressure becomes equalized between the hydraulic conduits of said at least one of the first and second hydraulic cylinders, thereby allowing the biasing spring to force the corresponding guillotine door to close.
The invention as well as its numerous advantages will be better understood by the following non-restrictive description of a preferred embodiment made in reference to the appending drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
1 o Figure 1 is a perspective view of a known manure transfer apparatus;
Figure 2 is a side cross sectional view of the known manure transfer apparatus shown in Figure 1 with an underground conduit leading to a remote reservoir;
Figure 3 is a perspective view of the manure transfer apparatus according to a preferred embodiment of the present invention;
Figures 4 and 5 are side cross sectional views of a hydraulic piston actuating a second guillotine door of the manure transfer apparatus of the preferred 2 0 embodiment of the present invention in respectively open and closed positions;
and Figure 6 is an enlarged view of a small by-pass conduct shown in encircled portion A of Figure 5.
DETAILED DESCRIPTION OF THE OF THE INVENTION
Referring to Figure 3, there is shown a manure transfer apparatus 100 according to a preferred embodiment of the present invention. The manure 3 o transfer apparatus 100 is nearly identical to the one described in the background of the invention, except for a modification in the hydraulic cylinder 36 of the second guillotine door 34. As shown, a biasing spring 114 is connected above of the rod of the hydraulic cylinder 36. Thereby, unless the hydraulic cylinder 36 is hydraulically forced to be contracted, the biasing spring 114 will push down the hydraulic cylinder 36 to its extended position and this forces the second guillotine door 34 to be closed.
5 Referring to Figures 4 to 6, the hydraulic cylinder 36 of the second guillotine door 34 has a pair of hydraulic conduits 112 for extending and contracting the hydraulic cylinder 36, as it is know to those skilled in the art. However, the operation of the hydraulic cylinder 36 is modified by having a by-pass conduct 116 mounted between its two hydraulic conduits 112. The conduct 116 is very l0 small and kept permanently open so that, in the case the pressure drops below a certain level in the hydraulic conduits 112, the pressure will be equalized in both hydraulic conduits 112 after a certain time. Thereby, the hydraulic cylinder 36 is forcibly extended by the biasing spring 114, and this, in turn, forces the second guillotine door 34 to be initially closed before the operation of the Z5 apparatus 100.
Accordingly, the present invention solves the problem of the back flow of manure from the remote reservoir 16 into the manure transfer apparatus 10.
Furthermore, the modified hydraulic cylinder 36 is more accessible and thus 2 o easier to repair than the flapper valve of the prior art.
Although a preferred embodiment of the present invention has been described in detail herein and illustrated in the accompanying drawings, it is to be understood that the invention is not limited to this embodiment and that various 2 5 changes and modifications may be effected therein without departing from the scope or spirit of the present invention. Indeed, in the above preferred embodiment, the biasing spring 114 and by-pass conduct 116 are exclusively "associated" to the hydraulic cylinder 36 of the second guillotine. However, it should be noted that the invention is not exclusively restricted to this 3 o embodiment. As a matter of fact, the biasing spring and by-pass conduct could be associated to the hydraulic cylinder of the first guillotine with the very result and advantage.
Biasing springs and by-pass conducts could even be associated to the hydraulic cylinders of both guillotine doors.
Accordingly, the present invention solves the problem of the back flow of manure from the remote reservoir 16 into the manure transfer apparatus 10.
Furthermore, the modified hydraulic cylinder 36 is more accessible and thus 2 o easier to repair than the flapper valve of the prior art.
Although a preferred embodiment of the present invention has been described in detail herein and illustrated in the accompanying drawings, it is to be understood that the invention is not limited to this embodiment and that various 2 5 changes and modifications may be effected therein without departing from the scope or spirit of the present invention. Indeed, in the above preferred embodiment, the biasing spring 114 and by-pass conduct 116 are exclusively "associated" to the hydraulic cylinder 36 of the second guillotine. However, it should be noted that the invention is not exclusively restricted to this 3 o embodiment. As a matter of fact, the biasing spring and by-pass conduct could be associated to the hydraulic cylinder of the first guillotine with the very result and advantage.
Biasing springs and by-pass conducts could even be associated to the hydraulic cylinders of both guillotine doors.
Claims
1. A manure transfer apparatus for transferring manure from a first location to a second remote location, comprising:
a hopper at the first location for receiving the manure;
a collection chamber communicating with the hopper for receiving the manure;
a pumping chamber communicating with the collection chamber, the pumping chamber having an inlet and an outlet;
a first guillotine door positioned between the collection chamber and the inlet of the pumping chamber, the first guillotine door being movable between open and closed positions;
a first hydraulic cylinder connected to the first guillotine door for opening and closing the first guillotine door by means of hydraulic conduits;
a second guillotine door positioned between the outlet of the pumping chamber and a conduit communicating to the second remote location, the second guillotine door being movable between open and closed positions;
a second hydraulic cylinder connected to the second guillotine door for opening and closing the second guillotine door by means of hydraulic conduits;
a pumping tube communicating with the pumping chamber;
a hydraulic piston actuated by a hydraulic cylinder and positioned within the pumping tube for sucking manure into, and pushing manure out of the suction chamber; and wherein:
at least one of first and second hydraulic cylinders is connected to a biasing spring that forces it to an extended position with the corresponding guillotine door in the closed position; and a small by-pass conduct is mounted between the hydraulic conduits of said at least one of the first and second hydraulic cylinders whereby if pressure in the hydraulic conduits of said at least one of the first and second hydraulic cylinders drops below a predetermined threshold in a predetermined period of time, the pressure becomes equalized between the hydraulic conduits of said at least one of the first and second hydraulic cylinders, thereby allowing the biasing spring to force the corresponding guillotine door to close.
a hopper at the first location for receiving the manure;
a collection chamber communicating with the hopper for receiving the manure;
a pumping chamber communicating with the collection chamber, the pumping chamber having an inlet and an outlet;
a first guillotine door positioned between the collection chamber and the inlet of the pumping chamber, the first guillotine door being movable between open and closed positions;
a first hydraulic cylinder connected to the first guillotine door for opening and closing the first guillotine door by means of hydraulic conduits;
a second guillotine door positioned between the outlet of the pumping chamber and a conduit communicating to the second remote location, the second guillotine door being movable between open and closed positions;
a second hydraulic cylinder connected to the second guillotine door for opening and closing the second guillotine door by means of hydraulic conduits;
a pumping tube communicating with the pumping chamber;
a hydraulic piston actuated by a hydraulic cylinder and positioned within the pumping tube for sucking manure into, and pushing manure out of the suction chamber; and wherein:
at least one of first and second hydraulic cylinders is connected to a biasing spring that forces it to an extended position with the corresponding guillotine door in the closed position; and a small by-pass conduct is mounted between the hydraulic conduits of said at least one of the first and second hydraulic cylinders whereby if pressure in the hydraulic conduits of said at least one of the first and second hydraulic cylinders drops below a predetermined threshold in a predetermined period of time, the pressure becomes equalized between the hydraulic conduits of said at least one of the first and second hydraulic cylinders, thereby allowing the biasing spring to force the corresponding guillotine door to close.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002355811A CA2355811A1 (en) | 2001-08-24 | 2001-08-24 | Manure transfer apparatus with spring biased guillotine door |
| US10/196,138 US20030039566A1 (en) | 2001-08-24 | 2002-07-17 | Manure transfer apparatus with spring biased guillotine door |
| CA 2393987 CA2393987A1 (en) | 2001-08-24 | 2002-07-18 | Manure transfer apparatus with spring biased guillotine door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002355811A CA2355811A1 (en) | 2001-08-24 | 2001-08-24 | Manure transfer apparatus with spring biased guillotine door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2355811A1 true CA2355811A1 (en) | 2003-02-24 |
Family
ID=4169806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002355811A Abandoned CA2355811A1 (en) | 2001-08-24 | 2001-08-24 | Manure transfer apparatus with spring biased guillotine door |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US20030039566A1 (en) |
| CA (1) | CA2355811A1 (en) |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3687311A (en) * | 1971-03-24 | 1972-08-29 | Clinton A Nesseth | Manure transfer and storage system |
| US3790035A (en) * | 1972-02-02 | 1974-02-05 | Blair Mfg Co | Manure spreader with bed closing gates |
| US3872981A (en) * | 1973-09-14 | 1975-03-25 | Junior M Hedlund | Manure handling system |
| US4079892A (en) * | 1976-07-29 | 1978-03-21 | Chromalloy American Corporation | Liquid manure spreader |
| US4056226A (en) * | 1976-07-29 | 1977-11-01 | Chromalloy American Corporation | Liquid manure spreader |
| US4140443A (en) * | 1977-08-31 | 1979-02-20 | Olson David A | Manure handling system |
| CA1073396A (en) * | 1978-02-22 | 1980-03-11 | Georges H. Bessette | Apparatus for handling manure |
| US4322023A (en) * | 1979-07-16 | 1982-03-30 | Olson David A | Material moving apparatus |
| DE3204975C1 (en) * | 1982-02-12 | 1983-05-19 | Echt & Co, Nachf. Schulte Kg, 5750 Menden | Double-leaf door with closing sequence control |
| US5030069A (en) * | 1990-01-30 | 1991-07-09 | Olson David A | Material moving pump |
| US5330332A (en) * | 1992-08-31 | 1994-07-19 | Nth, Inc. | Manure transfer system |
| US6295917B1 (en) * | 1999-03-24 | 2001-10-02 | Curt D. Richardson | Lost motion cylinder |
| US6167589B1 (en) * | 1999-03-25 | 2001-01-02 | Daren J. Luedtke | Control mechanism including a permanent magnet system |
-
2001
- 2001-08-24 CA CA002355811A patent/CA2355811A1/en not_active Abandoned
-
2002
- 2002-07-17 US US10/196,138 patent/US20030039566A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| US20030039566A1 (en) | 2003-02-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Dead |