CA1129925A - A.c. operated oscillating armature aquarium pump - Google Patents
A.c. operated oscillating armature aquarium pumpInfo
- Publication number
- CA1129925A CA1129925A CA344,885A CA344885A CA1129925A CA 1129925 A CA1129925 A CA 1129925A CA 344885 A CA344885 A CA 344885A CA 1129925 A CA1129925 A CA 1129925A
- Authority
- CA
- Canada
- Prior art keywords
- pump
- plate spring
- armature
- plate
- housing
- 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
- 238000005086 pumping Methods 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 230000002349 favourable effect Effects 0.000 abstract description 2
- 230000007704 transition Effects 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 abstract 1
- 230000003068 static effect Effects 0.000 abstract 1
- 241001123248 Arma Species 0.000 description 1
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 1
- 241000353097 Molva molva Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 241000153282 Theope Species 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
- A01K63/04—Arrangements for treating water specially adapted to receptacles for live fish
- A01K63/047—Liquid pumps for aquaria
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D33/00—Non-positive-displacement pumps with other than pure rotation, e.g. of oscillating type
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Biodiversity & Conservation Biology (AREA)
- Animal Husbandry (AREA)
- Marine Sciences & Fisheries (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
- Details Of Reciprocating Pumps (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Electromagnetic Pumps, Or The Like (AREA)
- Computer And Data Communications (AREA)
Abstract
ABSTRACT
An oscillating armature pump for liquids operated by alternating current and having a housing defining a pump cavity, with a. c. coils mounted laterally of the cavity on a block. The oscillating armature is mounted on a plate spring which is secured to the pump housing, and the armature is also provided with a resiliently flexible plate for executing the pumping movement. The plate spring is substantially U- or Omega-shaped, so that it takes up a minimum space, and also provides a favorable transition between the active oscillating end of the spring plate and the static end of the plate se-cured to the housing.
An oscillating armature pump for liquids operated by alternating current and having a housing defining a pump cavity, with a. c. coils mounted laterally of the cavity on a block. The oscillating armature is mounted on a plate spring which is secured to the pump housing, and the armature is also provided with a resiliently flexible plate for executing the pumping movement. The plate spring is substantially U- or Omega-shaped, so that it takes up a minimum space, and also provides a favorable transition between the active oscillating end of the spring plate and the static end of the plate se-cured to the housing.
Description
~2~
OSCILLATING ARMATURE PU~P
The present invention relates to an oscillating arma-ture pump opera~ed by alternating current, especially a cir-culating pump for aquariums, in which the armature is secured to a plate spring and is provided with a thin plate which is made o rubber or rubber-like plastics material and which, for carrying out the pumping movement, is reciprocatable in the manner of a fishtail.
In kno~n pumps of this kind, an elongate plate spring is provided in the form of a flat plate which is rigidly clamped at one end and a~ its free end supports the armature. Since with these springs a high specific continuous loadability is required, a predetermined minimum cross-sectional dimension is required. As a rssult of this, however, the rigidity of the spring can be vbtained only by varying the leng~h of the spring if the amplitude of the armature 7 and hence that Qf the plate, is to be increased. Such a step, however, ca~ses difficulties in small pumps.
The obJect of the in~ention is based on increasing the active length of the plate spring without having to sub~
stantlally modify the dimensions of ~he pump housing. At the same time~ it is an aim to obtain a simpli~ied clamping of the plate spring on khe pump hsusîng.
These and other objects and advantages of the present invention will appear more clearly from ths following speci-fication in conne~ion with the accompanying drawing~ in '~b which:
Figure l shows a plan view of a circulating pump fo~
aquariums; and Figure 2 shows a section taken on the line II-II of Figure l.
In accordance with the present invention there is pro-vided an oscillating ar~ature pump operated by alternating current, especially a circulating pump for aquariums, which comprises a housing which defines a pump ~avity; a substan-tially U~shaped plate spring~ one end of which is secured to said housing and at least the other free end of which projects at least partially intn said cavity; an armature~
~ne side of which is mounted to said other free end of said plate spring and is located in said cavity; and a resilien~ly flexible thin plate which is secured to one side o~ said armature remote from that side thereof mounted to sald plate spring, and which~ for executing a pumping movement, is adapted ~o ~e recipro~ated in the manner o a f1-h~ail.
The legs or shanks of ~he plate spring may bP parallel to one another, or they may diverge~ Thus, it is also possible to provide a fishhook shape or omega~shape.
In these embodiments?one end of the plate spring is conn~cted to the pump hQusing~ and the other end is con-ne~ted to ~he arma~ure9 which in a known manner may be pro-duced by clamping, screwîng thereon, or ~he like. For ~he purpose of i~proved securing7 th~ shanks may also be pro-vided with small bends, if or securing reasons th~s leads
OSCILLATING ARMATURE PU~P
The present invention relates to an oscillating arma-ture pump opera~ed by alternating current, especially a cir-culating pump for aquariums, in which the armature is secured to a plate spring and is provided with a thin plate which is made o rubber or rubber-like plastics material and which, for carrying out the pumping movement, is reciprocatable in the manner of a fishtail.
In kno~n pumps of this kind, an elongate plate spring is provided in the form of a flat plate which is rigidly clamped at one end and a~ its free end supports the armature. Since with these springs a high specific continuous loadability is required, a predetermined minimum cross-sectional dimension is required. As a rssult of this, however, the rigidity of the spring can be vbtained only by varying the leng~h of the spring if the amplitude of the armature 7 and hence that Qf the plate, is to be increased. Such a step, however, ca~ses difficulties in small pumps.
The obJect of the in~ention is based on increasing the active length of the plate spring without having to sub~
stantlally modify the dimensions of ~he pump housing. At the same time~ it is an aim to obtain a simpli~ied clamping of the plate spring on khe pump hsusîng.
These and other objects and advantages of the present invention will appear more clearly from ths following speci-fication in conne~ion with the accompanying drawing~ in '~b which:
Figure l shows a plan view of a circulating pump fo~
aquariums; and Figure 2 shows a section taken on the line II-II of Figure l.
In accordance with the present invention there is pro-vided an oscillating ar~ature pump operated by alternating current, especially a circulating pump for aquariums, which comprises a housing which defines a pump ~avity; a substan-tially U~shaped plate spring~ one end of which is secured to said housing and at least the other free end of which projects at least partially intn said cavity; an armature~
~ne side of which is mounted to said other free end of said plate spring and is located in said cavity; and a resilien~ly flexible thin plate which is secured to one side o~ said armature remote from that side thereof mounted to sald plate spring, and which~ for executing a pumping movement, is adapted ~o ~e recipro~ated in the manner o a f1-h~ail.
The legs or shanks of ~he plate spring may bP parallel to one another, or they may diverge~ Thus, it is also possible to provide a fishhook shape or omega~shape.
In these embodiments?one end of the plate spring is conn~cted to the pump hQusing~ and the other end is con-ne~ted to ~he arma~ure9 which in a known manner may be pro-duced by clamping, screwîng thereon, or ~he like. For ~he purpose of i~proved securing7 th~ shanks may also be pro-vided with small bends, if or securing reasons th~s leads
- 2 -, . . . . .
to a simpli~ication~
Referring now to the drawing in detail, the pump hous-ing is a plastics or synthetic material body having a pump cavity 1 deined by a rigid base plate 2 and by side blocks
to a simpli~ication~
Referring now to the drawing in detail, the pump hous-ing is a plastics or synthetic material body having a pump cavity 1 deined by a rigid base plate 2 and by side blocks
3, which are used ~o receive9 preferably molded-in, alter-nating curxent coils (not shown in detail). At the front end of the pump cavity 1 is the outlet 4 at the end of a taper or constriction 5. The pump housing is open at its upper side.
Between the two blocks 3, or the alternating current coils located there~ an armature 6 is arranged which is secured to a pla~e spring 7 of steel or the like, and at its front end the armature s~pports a thin ru~ber plate 8 This rubber plate 8 is rec~procaked in the manner of a fishtail, in acGordance with the double arrow 9, in order so ~o draw in aquarium wa~er via the ope~ top side o~ the pump h~using and to eject it through the outlet 4 ~see arrows 10). It ~s, however~ also possible or a portion o the inflow to occur also via the rear end of ~he pump cavity 1.
The plate spring 7 ls curved or arcuate, and in par~ic-ular substantially U-shaped, with one end 11 of one shank 12 secu~ed to the axmature 6~ ~nd one end 13 of the ather shank 14 secured to one of the bloc~s 3. While the end 11 is re-tained by clamping in a slo~ in.the armature 6, the end 13 is preferably secured ~o the block 3 by screwing or riveting.
~e rear end of the p~mp ca~ity 1 may also be provided with 9~s a yoke 15, the ends of which are also connPcted to theblocks 3, to provide a rear closure of the pump cavity 1.
The pre-shaped plate spring 7 not only permits a pre-deter~in~d spring characteristic in the narrowest space to be obtained, but moreover9 from a strength point of view, provides a favorable transition between the active, oscil-lating part of the plate spring 7, and the securing point or the part of the plate spring 7 (end 13) which is con-stantly at rest. Thus, a substantial increase of the service life of the dynamically highly-stressed plate spring 7 is attained. Furthermore, the mounting of the clamped-in plate spring end is simplified; the end 13 can be screwed directly ~ -to the rear end face of one of the blocks 3. The described shaping o the plate spring 7 provides end portions of this spring (ends 11, 13) which assume right angles relative to : one another.
The present invention ~s, of course, in no way re-stricted to the speci~ic disclosure of the spe~iflcation and drawing, but also encompasses an~ modi~ications with~
in the scope of the appended clalmsr :: :
' ,~
.
Between the two blocks 3, or the alternating current coils located there~ an armature 6 is arranged which is secured to a pla~e spring 7 of steel or the like, and at its front end the armature s~pports a thin ru~ber plate 8 This rubber plate 8 is rec~procaked in the manner of a fishtail, in acGordance with the double arrow 9, in order so ~o draw in aquarium wa~er via the ope~ top side o~ the pump h~using and to eject it through the outlet 4 ~see arrows 10). It ~s, however~ also possible or a portion o the inflow to occur also via the rear end of ~he pump cavity 1.
The plate spring 7 ls curved or arcuate, and in par~ic-ular substantially U-shaped, with one end 11 of one shank 12 secu~ed to the axmature 6~ ~nd one end 13 of the ather shank 14 secured to one of the bloc~s 3. While the end 11 is re-tained by clamping in a slo~ in.the armature 6, the end 13 is preferably secured ~o the block 3 by screwing or riveting.
~e rear end of the p~mp ca~ity 1 may also be provided with 9~s a yoke 15, the ends of which are also connPcted to theblocks 3, to provide a rear closure of the pump cavity 1.
The pre-shaped plate spring 7 not only permits a pre-deter~in~d spring characteristic in the narrowest space to be obtained, but moreover9 from a strength point of view, provides a favorable transition between the active, oscil-lating part of the plate spring 7, and the securing point or the part of the plate spring 7 (end 13) which is con-stantly at rest. Thus, a substantial increase of the service life of the dynamically highly-stressed plate spring 7 is attained. Furthermore, the mounting of the clamped-in plate spring end is simplified; the end 13 can be screwed directly ~ -to the rear end face of one of the blocks 3. The described shaping o the plate spring 7 provides end portions of this spring (ends 11, 13) which assume right angles relative to : one another.
The present invention ~s, of course, in no way re-stricted to the speci~ic disclosure of the spe~iflcation and drawing, but also encompasses an~ modi~ications with~
in the scope of the appended clalmsr :: :
' ,~
.
Claims (9)
1. An oscillating armature pump operated by alter-nating current, especially a circulating pump for aquariums, which comprises:
a housing which defines a pump cavity;
a substantially U-shaped plate spring, one end of which is secured to said housing and at least the other free end of which projects at least partially into said cavity;
an armature, one side of which is mounted to said other free end of said plate spring and is located in said cavity;
and a resiliently flexible thin plate which is secured to one side of said armature remote from that side thereof mounted to said plate spring, and which, for executing a pumping movement, is adapted to be reciprocated in the manner of a fishtail.
a housing which defines a pump cavity;
a substantially U-shaped plate spring, one end of which is secured to said housing and at least the other free end of which projects at least partially into said cavity;
an armature, one side of which is mounted to said other free end of said plate spring and is located in said cavity;
and a resiliently flexible thin plate which is secured to one side of said armature remote from that side thereof mounted to said plate spring, and which, for executing a pumping movement, is adapted to be reciprocated in the manner of a fishtail.
2. A pump according to claim 1, in which said plate spring is substantially omega-shaped.
3. A pump according to claim 1, in which said plate spring is substantially shaped in the manner of a fishhook.
4. A pump according to claim 1, in which at least said ends of said plate spring extend at least substantially at right angles to one another.
5. A pump according to claim 1, in which one end of said plate spring is secured to the rear end face of said pump housing and extends substantially at right angles to the longitudinal extension of said thin plate when the latter is in a rest position.
6. A pump according to claim 1, in which said plate spring projects arcuately beyond the pump housing on that side thereof remote from that side of said armature to which said thin plate is secured.
7. A pump according to claim 1, in which said pump cavity is closed by a yoke which encloses said plate spring and is located on that side of said housing remote from that side of said armature to which said thin plate is se-cured.
8. A pump according to claim 7, in which one end of said yoke and one end of said plate spring are mutually secured to said pump housing.
9. A pump according to claim 1, in which said re-siliently flexible thin plate is made of a material selected from the group consisting of rubber and rubber-like plastics material.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEG7902758.0 | 1979-02-01 | ||
| DE19797902758U DE7902758U1 (en) | 1979-02-01 | 1979-02-01 | VIBRATOR PUMP |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1129925A true CA1129925A (en) | 1982-08-17 |
Family
ID=6700636
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA344,885A Expired CA1129925A (en) | 1979-02-01 | 1980-02-01 | A.c. operated oscillating armature aquarium pump |
Country Status (17)
| Country | Link |
|---|---|
| JP (1) | JPS55104600A (en) |
| AT (1) | AT364605B (en) |
| AU (1) | AU5470780A (en) |
| BE (1) | BE881484A (en) |
| CA (1) | CA1129925A (en) |
| CS (1) | CS216520B2 (en) |
| DE (1) | DE7902758U1 (en) |
| DK (1) | DK45580A (en) |
| ES (1) | ES254337Y (en) |
| FR (1) | FR2448055A1 (en) |
| GB (1) | GB2041447A (en) |
| GR (1) | GR65807B (en) |
| IT (2) | IT1129787B (en) |
| LU (1) | LU82117A1 (en) |
| NL (1) | NL8000374A (en) |
| SE (1) | SE8000540L (en) |
| SU (1) | SU942605A3 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2121111A (en) * | 1982-05-26 | 1983-12-14 | Graham Frederick Cox | Oscillatory pumps |
| US4493831A (en) * | 1982-10-25 | 1985-01-15 | Fujisawa Pharmaceutical Co., Ltd. | Aminoglycoside derivatives |
| GB2210414A (en) * | 1987-10-01 | 1989-06-07 | Emi Plc Thorn | A pumping device |
| US4834619A (en) * | 1987-11-10 | 1989-05-30 | The Boeing Company | Ducted oscillatory blade fan |
| EP2353626A1 (en) * | 2010-01-27 | 2011-08-10 | ECP Entwicklungsgesellschaft mbH | Supply device for a fluid |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2522309C3 (en) * | 1975-05-20 | 1979-10-11 | Waldemar 4500 Osnabrueck Riepe | Liquid pump |
-
1979
- 1979-02-01 DE DE19797902758U patent/DE7902758U1/en not_active Expired
- 1979-12-13 GB GB7943001A patent/GB2041447A/en not_active Withdrawn
-
1980
- 1980-01-16 AT AT0022280A patent/AT364605B/en not_active IP Right Cessation
- 1980-01-18 AU AU54707/80A patent/AU5470780A/en not_active Abandoned
- 1980-01-21 NL NL8000374A patent/NL8000374A/en not_active Application Discontinuation
- 1980-01-23 GR GR61018A patent/GR65807B/el unknown
- 1980-01-23 SE SE8000540A patent/SE8000540L/en not_active Application Discontinuation
- 1980-01-24 IT IT19438/80A patent/IT1129787B/en active
- 1980-01-24 IT IT8020583U patent/IT8020583V0/en unknown
- 1980-01-25 CS CS80532A patent/CS216520B2/en unknown
- 1980-01-29 FR FR8001905A patent/FR2448055A1/en not_active Withdrawn
- 1980-01-31 ES ES1980254337U patent/ES254337Y/en not_active Expired
- 1980-01-31 BE BE0/199218A patent/BE881484A/en unknown
- 1980-01-31 LU LU82117A patent/LU82117A1/en unknown
- 1980-02-01 JP JP1013080A patent/JPS55104600A/en active Pending
- 1980-02-01 SU SU802879252A patent/SU942605A3/en active
- 1980-02-01 DK DK45580A patent/DK45580A/en unknown
- 1980-02-01 CA CA344,885A patent/CA1129925A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CS216520B2 (en) | 1982-11-26 |
| LU82117A1 (en) | 1980-04-23 |
| ATA22280A (en) | 1981-03-15 |
| AT364605B (en) | 1981-11-10 |
| GB2041447A (en) | 1980-09-10 |
| BE881484A (en) | 1980-05-16 |
| GR65807B (en) | 1980-11-05 |
| IT8020583V0 (en) | 1980-01-24 |
| SU942605A3 (en) | 1982-07-07 |
| SE8000540L (en) | 1980-08-02 |
| ES254337Y (en) | 1981-10-01 |
| IT8019438A0 (en) | 1980-01-24 |
| FR2448055A1 (en) | 1980-08-29 |
| IT1129787B (en) | 1986-06-11 |
| ES254337U (en) | 1981-03-16 |
| AU5470780A (en) | 1980-08-07 |
| DE7902758U1 (en) | 1979-07-05 |
| JPS55104600A (en) | 1980-08-11 |
| NL8000374A (en) | 1980-08-05 |
| DK45580A (en) | 1980-08-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |