CA1101758A - Pump support and fluid deflector assembly for parts washing machines - Google Patents
Pump support and fluid deflector assembly for parts washing machinesInfo
- Publication number
- CA1101758A CA1101758A CA283,116A CA283116A CA1101758A CA 1101758 A CA1101758 A CA 1101758A CA 283116 A CA283116 A CA 283116A CA 1101758 A CA1101758 A CA 1101758A
- Authority
- CA
- Canada
- Prior art keywords
- pump
- solvent
- component
- motor
- wall portion
- 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
Links
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
A truncated cone shaped pump support and fluid de-flector is provided with a plurality of intake apertures in the wall thereof and the pump is supported in the wall below the upper side of the sloping wall so that the intake is uppermost and situated above the intake apertures. This main-tains the pump and motor submerged in solvent at all times for cooling purposes and also provides self-priming character-istics to the pump. In conventional assemblies, if the pump is switched on for too long a period, most of the fluid will be pumped to the sink of the parts washing machine thus starv-ing the pump which, if fully exposed, can overheat and become damaged. Furthermore, with conventional pumps, if starved of fluid, air locks often occur which prevents the pump from operating correctly once liquid or fluid is restored thereto.
A truncated cone shaped pump support and fluid de-flector is provided with a plurality of intake apertures in the wall thereof and the pump is supported in the wall below the upper side of the sloping wall so that the intake is uppermost and situated above the intake apertures. This main-tains the pump and motor submerged in solvent at all times for cooling purposes and also provides self-priming character-istics to the pump. In conventional assemblies, if the pump is switched on for too long a period, most of the fluid will be pumped to the sink of the parts washing machine thus starv-ing the pump which, if fully exposed, can overheat and become damaged. Furthermore, with conventional pumps, if starved of fluid, air locks often occur which prevents the pump from operating correctly once liquid or fluid is restored thereto.
Description
BACKGROUND OF THE INVENTION
This invention relates to new and useful improve-ments in parts washing machines such as those illustrated in Canadian patent no: 967,077.
This patent illustrates a parts washing machine which includes a cone shaped primary separator with a pump and motor supported at the apex thereof immediately below the drain from the sink. The secondary intake consists i _ __ . .. . _ . _.~__ . ..... . _ . .... --. , :.', : ,:: . , ' ' ' ' " -~
: . . , :: .~ : .
.: ' ` ' ' , , ~ , , ~1~117S8 of a tube or conduit e~tending downwardly through the ape~ of the support and into the fluid or solvent con-tained within the tank or container~
Under normal circumstances, this construction operates adequately but if, for axample, the pwmp is left on inadvertently, the fluid level within the container often drops below the intake of the pump inasmuch as the drain cannot return the fluid fast enough to maintain the fluid level~
When this occurs, the pump continues to operate without pumping fluid and overheating can occur~ Further- :
more, air can be drawn into the pump and an air lock may : occur so that even if the pump is switched off and the i~
fluid level is returned to normal, the air lock will often prevent the pump from drawing fluid due to the length of : : the intake which is occasioned by the design of tha pri-mary separator and support cone~
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Even although thermal overload means were provi-,, -: : ded, occasionally the pump motor would burn out due to this overheating and fluid starvation~
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This invention relates to new and useful improve-ments in parts washing machines such as those illustrated in Canadian patent no: 967,077.
This patent illustrates a parts washing machine which includes a cone shaped primary separator with a pump and motor supported at the apex thereof immediately below the drain from the sink. The secondary intake consists i _ __ . .. . _ . _.~__ . ..... . _ . .... --. , :.', : ,:: . , ' ' ' ' " -~
: . . , :: .~ : .
.: ' ` ' ' , , ~ , , ~1~117S8 of a tube or conduit e~tending downwardly through the ape~ of the support and into the fluid or solvent con-tained within the tank or container~
Under normal circumstances, this construction operates adequately but if, for axample, the pwmp is left on inadvertently, the fluid level within the container often drops below the intake of the pump inasmuch as the drain cannot return the fluid fast enough to maintain the fluid level~
When this occurs, the pump continues to operate without pumping fluid and overheating can occur~ Further- :
more, air can be drawn into the pump and an air lock may : occur so that even if the pump is switched off and the i~
fluid level is returned to normal, the air lock will often prevent the pump from drawing fluid due to the length of : : the intake which is occasioned by the design of tha pri-mary separator and support cone~
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Even although thermal overload means were provi-,, -: : ded, occasionally the pump motor would burn out due to this overheating and fluid starvation~
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- 2 ~LC~1758 SUMMARY OF THE INVENTION
The present invention overcomes these disadvantages by providing a novel combination pump and motor support and primary separator component.
In accordance with the invention, there is provided, in a solvent type parts cleaner which includes a sink, a solvent container below said sink and drain means in said sink for draining solvent from said sink into said container;
a combination pump-and-motor-support and primary separator component in said container, said component including an u~per, solvent receiving portion and an outwardly and downwardly sloping wall portion to deflect solvent from said drain means, outwardly towards the wall of said container; means for solvent to enter the interior of said component from said con-tainer, said pump and motor unit including an upwardly facing pump intake situated on the upper side of said pump and motor unit preventing airlocks in said intake and ensuring that said pump and motor unit remains submerged in the solvent in said container.
The pump and motor component are situated withi~ -the pump and motor support and primary separator component with the pump intake being uppermost so that the pump and motor are always submerged in solvent or fluid thus assisting in the cooling aspect.
~ Because of the position of the intake, the pump ,: .
,~
The present invention overcomes these disadvantages by providing a novel combination pump and motor support and primary separator component.
In accordance with the invention, there is provided, in a solvent type parts cleaner which includes a sink, a solvent container below said sink and drain means in said sink for draining solvent from said sink into said container;
a combination pump-and-motor-support and primary separator component in said container, said component including an u~per, solvent receiving portion and an outwardly and downwardly sloping wall portion to deflect solvent from said drain means, outwardly towards the wall of said container; means for solvent to enter the interior of said component from said con-tainer, said pump and motor unit including an upwardly facing pump intake situated on the upper side of said pump and motor unit preventing airlocks in said intake and ensuring that said pump and motor unit remains submerged in the solvent in said container.
The pump and motor component are situated withi~ -the pump and motor support and primary separator component with the pump intake being uppermost so that the pump and motor are always submerged in solvent or fluid thus assisting in the cooling aspect.
~ Because of the position of the intake, the pump ,: .
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i " __, _ ___. ,__, . ,.. , . .. ! ' ' ' . ' 13L~175~
is self-priming once the fluid level is returned to normal so that air locks cannot occur.
Another aspect of the invention is to provide a device which is simple in construction, economical in manufacture and otherwise we.l suited to the purpose for which it is designed~
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With the foregoing objects in view, and other such objects and advantages as will become apparent to those skilled in the art to which this invention relates as this specification proceeds, my invention consists es-sentially in the arrangement and construction of parts all as hereinafter more particularly described, reference be-ing had to the accompanying drawings in which:
BRIEF DESCRIPTION OF THE DR~WINGS
~ _ . .
Figure 1 is a cross sectional side elevation view substantially along the line 1-1 of Figure 2.
Figure 2 is an underside view through 180 of Figure 1, it being understood that the device is symme-; trical about the center line shown.
: . ..... : .
Figure 3 is a partial sectional view reduced in scale with reference to Figures 1 and 2, of a solvent cleaner with the device of Figures 1 and 2 shown in posi-tion therein.
~ ' In the drawings like characters of reference indicate corresponding parts in the different figures.
i " __, _ ___. ,__, . ,.. , . .. ! ' ' ' . ' 13L~175~
is self-priming once the fluid level is returned to normal so that air locks cannot occur.
Another aspect of the invention is to provide a device which is simple in construction, economical in manufacture and otherwise we.l suited to the purpose for which it is designed~
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With the foregoing objects in view, and other such objects and advantages as will become apparent to those skilled in the art to which this invention relates as this specification proceeds, my invention consists es-sentially in the arrangement and construction of parts all as hereinafter more particularly described, reference be-ing had to the accompanying drawings in which:
BRIEF DESCRIPTION OF THE DR~WINGS
~ _ . .
Figure 1 is a cross sectional side elevation view substantially along the line 1-1 of Figure 2.
Figure 2 is an underside view through 180 of Figure 1, it being understood that the device is symme-; trical about the center line shown.
: . ..... : .
Figure 3 is a partial sectional view reduced in scale with reference to Figures 1 and 2, of a solvent cleaner with the device of Figures 1 and 2 shown in posi-tion therein.
~ ' In the drawings like characters of reference indicate corresponding parts in the different figures.
- 4 D ETAILED DESCRI PTI 0~
Proceeding therefore to describe the invention in detail, reference should first be made to Figure 3 in which lO illustrates a casing or reservoir having a sink ll situated thereabove for the reception of parts for cleaningO A solvent discharge pipe 12 discharges fluid into the sink from the container or reservoir lO and this solvent drains downwardly from the sink into the container through the centrally situated drain pipe 13, all of which is shown in the above-identified patent.
. . .
The invention illustrated in details in Figures :~
l and 2 is collectively designated 14 and consists of a com~ination pump and motor support and primary separator ; component normally situated on the floor 15 o the solvent '~ 15 con~ainer or reservoir lO~
In this embodiment~ this component comprises a ~ .
truncated eonical component 16 having an upper planar or truncated closed portion 17 and outwardly and downwardly .~ sleping wall portion 18~ This component is situated sub-s~.aniially centrally of the container 10 and immediately be_~w the drain 13 so that any fluid or solvent falling from the drain, striXes the truncated upper porl-lon 17 and is deflected dcwnwardly and outwardly by the sloping wall portion 18, to adjacent the outer walls of the con-7~8 tainer 10. This ensures that any heavy particles containedwithin the contaminated solvent, are deposited by gravity around the outer base of the component 14 in a manner simi-lar to that described in the previous mentioned patent.
Fluid or solvent intake apertures 19 are formed through the sloping wall portion 18 of the component 14 ad-jacent the upper end thereof and these apertures are pre-ferably formed by striking out tabs 20 which remain in the downwardly and outwardly inclined position illustrated thus shielding the intake apertures 19 and directing the solvent flowing down the outside of the component 14, towards the outer perimeter of the component 14.
The fluid or solvent level normally is at a level for example, illustrated by reference character 21 and a pump and motor component collectively designated 22 is se-cured to the inner surface of the sloping wall portion 18 by any conventional means (not illustrated). The sealed motor portion 22A is provided with a sealed electrical con-duit connection l9A which extends to a source of electrical power (not illustrated) and maybe controlled by a conve-: nient switch (not illustrated) within the parts cleaner and the combination of a nut and clamp 23 on each side of the wall of the portion 18, may assist in supporting the component 22.
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` 11S~7~8 The pump portion 22B is provided with a fluid discharge conduit 24 also extending through the wall por-tion 18 and means may be provided in conjunction with this conduit also to assist in the support of the component 22.
The pump intake 25 extends upwardly from a housing 26 on the upper side 27 of the pump 22B and nor-mally this relatively short intake 25 is situated below the normal fluid level 21.
However, if the unit is left on inadvertently, the fluid level 21 may fall to the level indicated by re-ference character 21A and of course, as soon as the intake 25 is exposed, the fluid level will not fall any further as obviously fluid cannot enter the intake.
This maintains the pump and motor component 22 submerged in fluid or solvent at all times so that even if it is left on inadvertently, a cooling effect is provided by this immersion within the solvent.
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~; When the fluid level is returned to the original level 21, as for example, when the unit is switched off, ~ 20 then fluid or solvent flows by gravity into the intake 25 :~ and prevents any air lock from causing the pump to become inoperative. In other words, as soon as the pump is switched '7S8 on a~ain, fluid will be pumped in the usual manner.
It will also be noted that the pump intake 25 is higher than the intake apertur~s 19 which is advanta-geous to the operation of the device.
The component 14 together with the positioning of the pump and motor component 22, also facilitates the operation of the parts cleaning device by permitting the user to close off the drain 13 in the event that he wishes to have a quantity of solvent retained within the sink 11 ; 10 so that contaminated parts can be soaked in the solvent.
~hen the drain 13 is closed off in the conventional units, ~; too much solvent is sometimes removed from the container ~ 10, once again causing pump starvation which even if over- -`:5 heating does not oc~ur, often causes air locks which can-, ~ ~
not be overcome merely by submerging the dcwnwardly extend-ing intake into the solvent~
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Since various modifications can be made in my :i !~ invention as hereinabove described, and many apparently , widely different embodiments of same made within the spirit ~ 20 ~and scope of the claims without departing from such spirit `~ ~ and scope, it is intended that all matter contained in the accompanying specification shall be interpreted as illus-trative only and not in a limiting sense~
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Proceeding therefore to describe the invention in detail, reference should first be made to Figure 3 in which lO illustrates a casing or reservoir having a sink ll situated thereabove for the reception of parts for cleaningO A solvent discharge pipe 12 discharges fluid into the sink from the container or reservoir lO and this solvent drains downwardly from the sink into the container through the centrally situated drain pipe 13, all of which is shown in the above-identified patent.
. . .
The invention illustrated in details in Figures :~
l and 2 is collectively designated 14 and consists of a com~ination pump and motor support and primary separator ; component normally situated on the floor 15 o the solvent '~ 15 con~ainer or reservoir lO~
In this embodiment~ this component comprises a ~ .
truncated eonical component 16 having an upper planar or truncated closed portion 17 and outwardly and downwardly .~ sleping wall portion 18~ This component is situated sub-s~.aniially centrally of the container 10 and immediately be_~w the drain 13 so that any fluid or solvent falling from the drain, striXes the truncated upper porl-lon 17 and is deflected dcwnwardly and outwardly by the sloping wall portion 18, to adjacent the outer walls of the con-7~8 tainer 10. This ensures that any heavy particles containedwithin the contaminated solvent, are deposited by gravity around the outer base of the component 14 in a manner simi-lar to that described in the previous mentioned patent.
Fluid or solvent intake apertures 19 are formed through the sloping wall portion 18 of the component 14 ad-jacent the upper end thereof and these apertures are pre-ferably formed by striking out tabs 20 which remain in the downwardly and outwardly inclined position illustrated thus shielding the intake apertures 19 and directing the solvent flowing down the outside of the component 14, towards the outer perimeter of the component 14.
The fluid or solvent level normally is at a level for example, illustrated by reference character 21 and a pump and motor component collectively designated 22 is se-cured to the inner surface of the sloping wall portion 18 by any conventional means (not illustrated). The sealed motor portion 22A is provided with a sealed electrical con-duit connection l9A which extends to a source of electrical power (not illustrated) and maybe controlled by a conve-: nient switch (not illustrated) within the parts cleaner and the combination of a nut and clamp 23 on each side of the wall of the portion 18, may assist in supporting the component 22.
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` 11S~7~8 The pump portion 22B is provided with a fluid discharge conduit 24 also extending through the wall por-tion 18 and means may be provided in conjunction with this conduit also to assist in the support of the component 22.
The pump intake 25 extends upwardly from a housing 26 on the upper side 27 of the pump 22B and nor-mally this relatively short intake 25 is situated below the normal fluid level 21.
However, if the unit is left on inadvertently, the fluid level 21 may fall to the level indicated by re-ference character 21A and of course, as soon as the intake 25 is exposed, the fluid level will not fall any further as obviously fluid cannot enter the intake.
This maintains the pump and motor component 22 submerged in fluid or solvent at all times so that even if it is left on inadvertently, a cooling effect is provided by this immersion within the solvent.
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~; When the fluid level is returned to the original level 21, as for example, when the unit is switched off, ~ 20 then fluid or solvent flows by gravity into the intake 25 :~ and prevents any air lock from causing the pump to become inoperative. In other words, as soon as the pump is switched '7S8 on a~ain, fluid will be pumped in the usual manner.
It will also be noted that the pump intake 25 is higher than the intake apertur~s 19 which is advanta-geous to the operation of the device.
The component 14 together with the positioning of the pump and motor component 22, also facilitates the operation of the parts cleaning device by permitting the user to close off the drain 13 in the event that he wishes to have a quantity of solvent retained within the sink 11 ; 10 so that contaminated parts can be soaked in the solvent.
~hen the drain 13 is closed off in the conventional units, ~; too much solvent is sometimes removed from the container ~ 10, once again causing pump starvation which even if over- -`:5 heating does not oc~ur, often causes air locks which can-, ~ ~
not be overcome merely by submerging the dcwnwardly extend-ing intake into the solvent~
~' .....
Since various modifications can be made in my :i !~ invention as hereinabove described, and many apparently , widely different embodiments of same made within the spirit ~ 20 ~and scope of the claims without departing from such spirit `~ ~ and scope, it is intended that all matter contained in the accompanying specification shall be interpreted as illus-trative only and not in a limiting sense~
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Claims
WHAT I CLAIM AS MY INVENTION IS:
(1) In a solvent type parts cleaner which includes a sink, a solvent container below said sink and drain means in said sink for draining solvent from said sink into said container; a combination pump-and-motor-support and primary separator component in said container, said component includ-ing an upper, solvent receiving portion and an outwardly and downwardly sloping wall portion to deflect solvent from said drain means, outwardly towards the wall of said container;
means for solvent to enter the interior of said component from said container, said pump and motor unit including an upwardly facing pump intake situated on the upper side of said pump and motor unit preventing airlocks in said intake and ensuring that said pump and motor unit remains submerged in the solvent in said container.
(2) The invention according to Claim 1 in which said pump intake is situated above said means for solvent to enter the interior of said combination pump-and-motor support and primary separator component.
(3) The invention according to Claim 1 in which said means for solvent to enter the interior of said compo-nent from said container includes a plurality of openings formed through the downwardly sloping wall portion of said component spaced below said solvent receiving portion, and shielding tabs overlying said openings and inclining out-wardly and downwardly to shed solvent flowing down the out side of said sloping wall portion.
(4) The invention according to Claim 2 in which said means for solvent to enter the interior of said compo-nent from said container includes a plurality of openings formed through the downwardly sloping wall portion of said component spaced below said solvent receiving portion, and shielding tabs overlying said openings and inclining out-wardly and downwardly to shed solvent flowing down the out-side of said sloping wall portion.
(5) The invention according to Claim 1 in which said pump and motor support and primary separator component is in the form of a truncated cone, said solvent receiving portion being formed by the closed upper end of said trun-cated cone, said pump and motor component being secured to the sloping wall portion of said truncated cone.
(6) The invention according to Claim 2 in which said pump and motor support and primary separator component is in the form of a truncated cone, said solvent receiving portion being formed by the closed upper end of said trun-cated cone, said pump and motor component being secured to the sloping wall portion of said truncated cone.
(7) The invention according to Claim 3 in which said pump and motor support and primary separator component is in the form of a truncated cone, said solvent receiving portion being formed by the closed upper end of said trun-cated cone, said pump and motor component being secured to the sloping wall portion of said truncated cone.
(8) The invention according to Claim 4 in which said pump and motor support and primary separator component is in the form of a truncated cone, said solvent receiving portion being formed by the closed upper end of said trun-cated cone, said pump and motor component being secured to the sloping wall portion of said truncated cone.
(1) In a solvent type parts cleaner which includes a sink, a solvent container below said sink and drain means in said sink for draining solvent from said sink into said container; a combination pump-and-motor-support and primary separator component in said container, said component includ-ing an upper, solvent receiving portion and an outwardly and downwardly sloping wall portion to deflect solvent from said drain means, outwardly towards the wall of said container;
means for solvent to enter the interior of said component from said container, said pump and motor unit including an upwardly facing pump intake situated on the upper side of said pump and motor unit preventing airlocks in said intake and ensuring that said pump and motor unit remains submerged in the solvent in said container.
(2) The invention according to Claim 1 in which said pump intake is situated above said means for solvent to enter the interior of said combination pump-and-motor support and primary separator component.
(3) The invention according to Claim 1 in which said means for solvent to enter the interior of said compo-nent from said container includes a plurality of openings formed through the downwardly sloping wall portion of said component spaced below said solvent receiving portion, and shielding tabs overlying said openings and inclining out-wardly and downwardly to shed solvent flowing down the out side of said sloping wall portion.
(4) The invention according to Claim 2 in which said means for solvent to enter the interior of said compo-nent from said container includes a plurality of openings formed through the downwardly sloping wall portion of said component spaced below said solvent receiving portion, and shielding tabs overlying said openings and inclining out-wardly and downwardly to shed solvent flowing down the out-side of said sloping wall portion.
(5) The invention according to Claim 1 in which said pump and motor support and primary separator component is in the form of a truncated cone, said solvent receiving portion being formed by the closed upper end of said trun-cated cone, said pump and motor component being secured to the sloping wall portion of said truncated cone.
(6) The invention according to Claim 2 in which said pump and motor support and primary separator component is in the form of a truncated cone, said solvent receiving portion being formed by the closed upper end of said trun-cated cone, said pump and motor component being secured to the sloping wall portion of said truncated cone.
(7) The invention according to Claim 3 in which said pump and motor support and primary separator component is in the form of a truncated cone, said solvent receiving portion being formed by the closed upper end of said trun-cated cone, said pump and motor component being secured to the sloping wall portion of said truncated cone.
(8) The invention according to Claim 4 in which said pump and motor support and primary separator component is in the form of a truncated cone, said solvent receiving portion being formed by the closed upper end of said trun-cated cone, said pump and motor component being secured to the sloping wall portion of said truncated cone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA283,116A CA1101758A (en) | 1977-07-20 | 1977-07-20 | Pump support and fluid deflector assembly for parts washing machines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA283,116A CA1101758A (en) | 1977-07-20 | 1977-07-20 | Pump support and fluid deflector assembly for parts washing machines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1101758A true CA1101758A (en) | 1981-05-26 |
Family
ID=4109176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA283,116A Expired CA1101758A (en) | 1977-07-20 | 1977-07-20 | Pump support and fluid deflector assembly for parts washing machines |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1101758A (en) |
-
1977
- 1977-07-20 CA CA283,116A patent/CA1101758A/en not_active Expired
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |