CA2038617A1 - Removable filter fluid flow shutoff apparatus - Google Patents
Removable filter fluid flow shutoff apparatusInfo
- Publication number
- CA2038617A1 CA2038617A1 CA 2038617 CA2038617A CA2038617A1 CA 2038617 A1 CA2038617 A1 CA 2038617A1 CA 2038617 CA2038617 CA 2038617 CA 2038617 A CA2038617 A CA 2038617A CA 2038617 A1 CA2038617 A1 CA 2038617A1
- Authority
- CA
- Canada
- Prior art keywords
- filter
- valve
- fluid
- percussion device
- outlet
- 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
Landscapes
- Earth Drilling (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
A filter apparatus for a percussion device powered by fluid pressure includes a percussion device housing having a fluid inlet and a fluid outlet. A valve is displaced between an open and a closed position. A filter recess is formed within the housing. A filter is inserted within the filter recess for moving the valve from the closed to the open position, thereby permitting fluid pressure to be supplied from the inlet to the outlet.
A filter apparatus for a percussion device powered by fluid pressure includes a percussion device housing having a fluid inlet and a fluid outlet. A valve is displaced between an open and a closed position. A filter recess is formed within the housing. A filter is inserted within the filter recess for moving the valve from the closed to the open position, thereby permitting fluid pressure to be supplied from the inlet to the outlet.
Description
~ 0 3:8 6 ~ 7 ~
Docket ~O 0902-IR-MC
REMOVABLE FILTER FLUID FLOW SHUTOFF APPARATUS
BACKGROUND OF THE INVENTION
This invention relates generally to a filter for a percus~ion device, and mor~ specifically a filter to be ~ used in a rock drill and contalned within the housing of the rock drill. The rock drill is to be powered by an impure fluid such as water.
Previously, rock drills have been constructed with the filter element connected with the rock drill by a hose element. This configuratlon is awkward considering the weight o~ the filter and the small work space in which the rock drill is typically used.
This conflguration also per~itted operation of the percussion device with the ~llter disconnected from the percussion device. Since the fluid used in these applications is o~ten conta~inated, this reduced the lifetime o~ th~ percussion device considerably.
- , . . . ` : .
Docket ~ 0902-IR-MC
The foregoing illustrate~ limitations known to exist in present rock drills. Thus, it is apparent that it would be advantageous to provide an alternative directed to overco~ing one or more of the l~tations set forth above.
Accordingly, a suitable alternatlve i8 provided including features ~ore fully disclosed hereinafter.
SUMMARY OF ~HE INVENTION
In one aspect of the present invention, this is accomplished by providing a filter apparatus for a percus6ion device powered by fluid pressure comprising a percuss~on dQvice housing. The ~ilter apparatus has a fluid inlet and a fluid outlet.
A valve is displaceable between an open and a closed position. A filter recess is formed within'the housing. A
filter is inserted within tAe ~ilter recess for moving the valve from the closed to the open position, thereby per~ittlng fluid pressure to be ~upplied from the inlet to the outlet.
~: ' The foregoing and other aspects will become apparent from the following detailed description of the invention when considered in conjunction with the accompanying drawing figure~.
20~8617 Docket No.: 0902-IR-MC
BRIEF D~SCRIPTION OF THE D~AWING FIGURES
Fig. 1 is a side view of a per~ussion device illustxating one embodiment of the location of the shutoff valve o~ the in~tant invention;
Fig. 2 is a split cross sectional view on the left side of the figure, and an elevation view on the right side of the figure, illustrating an embodiment of the removable filter flow shutoff apparatus of the in~tant invention, with the ~ilter in the inssrted position; and Fig. 3 is a cros~ sectional view of the valve portion of Fi~. 2 with the valve in the clo~ed position.
DE~AILED DESC~IPTION
~ .' A percussion device shown gener~lly at 10, such as a jackhammer, is formed with a housing 12. An internal filter recess 14 is formed within the hou~ing 12. A filter-i6, which is mounted on a filter apparatus 18, i8 removably di~pos2d within tha rece~s 14.
~ : :
The filt~r 16 is us~d to filter a fluid, such a~ water . .
or air, used in the operation of the percussion device.
During the normal operatlon of the percussion device 10, fluid pa~sing fro~
.
:. : : , , . . , .; .. . . . .
Docket No.: 0902-IR-MC
a fluid inlet 20 to a fluid outlet Z2 must pass through filter 16. The fluid passing through the filter outlet 22 will be used to operate the percussion device.
A valve ~ean~ 24 can be displaced between an open position (as shown in Fig. 21, and a clossd position (a~
shown in Fig 3). When the val~ i~ in a closed po~ition, a shoulder 26 of the valve mean 24 acts against a ~alve seat means 28, and acts as a seal to prevent the flow of ~luid :
from the fluid inlet 20 to the ~luid outlet 22. Whenever the valve 24 is open, the fluid flows freely between the inlet and the outlet. :
Insertion of the filter apparatus 18 into the filter recess 14 with the filter 16 on the ~ilter apparatus w~
cause t~e filter 16 to act against the shoulder 26. This will displace valve mean~ 24 from the closed to the open position, and per~it t~e proper functioning of the percussion device 10.
However, if the filter apparatus 18 is inserted into the filter recess 14 with the f~lter 16 removed from the filter apparatus 18, the valve means 24 will remain seated against the valve seat means 28 under the force of a spring ~`
30. Fluid passing from th~ inlet 20 to the outlet 22 will therefore be blocked, and the percussion device will be inoperative.
- : :, Docket ~o.: oso2-IR-Mc This configuration en~ures that the percussion device 10 will be able to be operated only on fluid which has pa~sed through filter 16, and enca~e~ the bulky filter element within the percussion davice housing 12.
Docket ~O 0902-IR-MC
REMOVABLE FILTER FLUID FLOW SHUTOFF APPARATUS
BACKGROUND OF THE INVENTION
This invention relates generally to a filter for a percus~ion device, and mor~ specifically a filter to be ~ used in a rock drill and contalned within the housing of the rock drill. The rock drill is to be powered by an impure fluid such as water.
Previously, rock drills have been constructed with the filter element connected with the rock drill by a hose element. This configuratlon is awkward considering the weight o~ the filter and the small work space in which the rock drill is typically used.
This conflguration also per~itted operation of the percussion device with the ~llter disconnected from the percussion device. Since the fluid used in these applications is o~ten conta~inated, this reduced the lifetime o~ th~ percussion device considerably.
- , . . . ` : .
Docket ~ 0902-IR-MC
The foregoing illustrate~ limitations known to exist in present rock drills. Thus, it is apparent that it would be advantageous to provide an alternative directed to overco~ing one or more of the l~tations set forth above.
Accordingly, a suitable alternatlve i8 provided including features ~ore fully disclosed hereinafter.
SUMMARY OF ~HE INVENTION
In one aspect of the present invention, this is accomplished by providing a filter apparatus for a percus6ion device powered by fluid pressure comprising a percuss~on dQvice housing. The ~ilter apparatus has a fluid inlet and a fluid outlet.
A valve is displaceable between an open and a closed position. A filter recess is formed within'the housing. A
filter is inserted within tAe ~ilter recess for moving the valve from the closed to the open position, thereby per~ittlng fluid pressure to be ~upplied from the inlet to the outlet.
~: ' The foregoing and other aspects will become apparent from the following detailed description of the invention when considered in conjunction with the accompanying drawing figure~.
20~8617 Docket No.: 0902-IR-MC
BRIEF D~SCRIPTION OF THE D~AWING FIGURES
Fig. 1 is a side view of a per~ussion device illustxating one embodiment of the location of the shutoff valve o~ the in~tant invention;
Fig. 2 is a split cross sectional view on the left side of the figure, and an elevation view on the right side of the figure, illustrating an embodiment of the removable filter flow shutoff apparatus of the in~tant invention, with the ~ilter in the inssrted position; and Fig. 3 is a cros~ sectional view of the valve portion of Fi~. 2 with the valve in the clo~ed position.
DE~AILED DESC~IPTION
~ .' A percussion device shown gener~lly at 10, such as a jackhammer, is formed with a housing 12. An internal filter recess 14 is formed within the hou~ing 12. A filter-i6, which is mounted on a filter apparatus 18, i8 removably di~pos2d within tha rece~s 14.
~ : :
The filt~r 16 is us~d to filter a fluid, such a~ water . .
or air, used in the operation of the percussion device.
During the normal operatlon of the percussion device 10, fluid pa~sing fro~
.
:. : : , , . . , .; .. . . . .
Docket No.: 0902-IR-MC
a fluid inlet 20 to a fluid outlet Z2 must pass through filter 16. The fluid passing through the filter outlet 22 will be used to operate the percussion device.
A valve ~ean~ 24 can be displaced between an open position (as shown in Fig. 21, and a clossd position (a~
shown in Fig 3). When the val~ i~ in a closed po~ition, a shoulder 26 of the valve mean 24 acts against a ~alve seat means 28, and acts as a seal to prevent the flow of ~luid :
from the fluid inlet 20 to the ~luid outlet 22. Whenever the valve 24 is open, the fluid flows freely between the inlet and the outlet. :
Insertion of the filter apparatus 18 into the filter recess 14 with the filter 16 on the ~ilter apparatus w~
cause t~e filter 16 to act against the shoulder 26. This will displace valve mean~ 24 from the closed to the open position, and per~it t~e proper functioning of the percussion device 10.
However, if the filter apparatus 18 is inserted into the filter recess 14 with the f~lter 16 removed from the filter apparatus 18, the valve means 24 will remain seated against the valve seat means 28 under the force of a spring ~`
30. Fluid passing from th~ inlet 20 to the outlet 22 will therefore be blocked, and the percussion device will be inoperative.
- : :, Docket ~o.: oso2-IR-Mc This configuration en~ures that the percussion device 10 will be able to be operated only on fluid which has pa~sed through filter 16, and enca~e~ the bulky filter element within the percussion davice housing 12.
Claims (5)
1. A filter apparatus for a percussion device powered by fluid pressure comprising:
a percussion device housing;
a fluid inlet and a fluid outlet within the percussion device housing;
valve means movable between an open and a closed position;
a filter recess formed within the housing; and filter means inserted within the filter recess for moving the valve from the closed to the open position thereby permitting fluid pressure to be supplied from the inlet to the outlet.
a percussion device housing;
a fluid inlet and a fluid outlet within the percussion device housing;
valve means movable between an open and a closed position;
a filter recess formed within the housing; and filter means inserted within the filter recess for moving the valve from the closed to the open position thereby permitting fluid pressure to be supplied from the inlet to the outlet.
2. The apparatus as defined in claim 1, further comprising:
a passage interconnecting the inlet with the outlet.
a passage interconnecting the inlet with the outlet.
3. The apparatus as defined in claim 1, further comprising:
spring means for biasing the valve means to a closed position.
spring means for biasing the valve means to a closed position.
4. The apparatus as defined in claim 1, wherein the valve means further comprises a shoulder means which the filter means acts against for biasing the valve from a closed to an open position.
5. The apparatus as defined in claim 4, wherein the shoulder means forms a seal with the valve means when the shoulder means and a valve means are in contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2038617 CA2038617A1 (en) | 1991-03-19 | 1991-03-19 | Removable filter fluid flow shutoff apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2038617 CA2038617A1 (en) | 1991-03-19 | 1991-03-19 | Removable filter fluid flow shutoff apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2038617A1 true CA2038617A1 (en) | 1992-09-20 |
Family
ID=4147220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2038617 Abandoned CA2038617A1 (en) | 1991-03-19 | 1991-03-19 | Removable filter fluid flow shutoff apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2038617A1 (en) |
-
1991
- 1991-03-19 CA CA 2038617 patent/CA2038617A1/en not_active Abandoned
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Dead |