GB667000A - Improvements in and relating to dishwashing machines - Google Patents
Improvements in and relating to dishwashing machinesInfo
- Publication number
- GB667000A GB667000A GB2386/50A GB238650A GB667000A GB 667000 A GB667000 A GB 667000A GB 2386/50 A GB2386/50 A GB 2386/50A GB 238650 A GB238650 A GB 238650A GB 667000 A GB667000 A GB 667000A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pump
- port
- wall
- cover
- vanes
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/44—Fluid-guiding means, e.g. diffusers
- F04D29/445—Fluid-guiding means, e.g. diffusers especially adapted for liquid pumps
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/02—Washing or rinsing machines for crockery or tableware with circulation and agitation of the cleaning liquid in the cleaning chamber containing a stationary basket
- A47L15/06—Washing or rinsing machines for crockery or tableware with circulation and agitation of the cleaning liquid in the cleaning chamber containing a stationary basket by means of an impeller in the chamber
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/42—Details
- A47L15/4214—Water supply, recirculation or discharge arrangements; Devices therefor
- A47L15/4225—Arrangements or adaption of recirculation or discharge pumps
Abstract
667,000. Centrifugal pumps. BRITISH THOMSON-HOUSTON, CO., Ltd. Jan. 30, 1950. [Feb. 9, 1949] No. 2386/50. Class 110(i) [Also in Group XXIII] Relates to a centrifugal pump for discharging water from the washing tub of a dishwashing machine (see Group XXIII). As shown in Fig. 2 the pump comprises a chamber 44 having a discharge opening connected to a hose 48, impeller 47 driven by a motor 27 which also drives the coaxially mounted washing liquid circulating impeller 52, and a cover 102, Fig. 10. The cover has a central sump 117 at the centre of which is an upwardly extending wall 118. Extending tangentially from the wall to the periphery of the cover are vanes 120, 121 which are approximately the height of the wall. In the cover portion between the vanes 120, 121 is provided an arcuate inlet port 122 at the base of the wall 118. In the space between vane 121 and a third vane 123 no port is provided since this space is situated over the discharge or high pressure area of the pump chamber. The vane 123 terminates short of the wall 118 to provide a water flow passage 124 into the. cover area between vanes 123, 120 which area is provided with another port 125 communicating with the pump chamber. Both port slots 122, 125 are therefore in the low pressure area of the pump farthest removed from the discharge port. The port slot size is such that water can drain rapidly therethrough but prevents objects which might damage the pump from entering the chamber. This arrangement of the pump inlet ports prevents splashing and noise which would normally occur if the inlet ports were near to the discharge port. Also the vanes nullify the natural vortex action of water entering the pump chamber.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US75466A US2654377A (en) | 1949-02-09 | 1949-02-09 | Dishwashing machine |
| US287149A US2746393A (en) | 1949-02-09 | 1952-05-10 | Centrifugal drainage pump |
| US287148A US2677383A (en) | 1949-02-09 | 1952-05-10 | Circulating pump structure and the like |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB667000A true GB667000A (en) | 1952-02-20 |
Family
ID=27372687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2386/50A Expired GB667000A (en) | 1949-02-09 | 1950-01-30 | Improvements in and relating to dishwashing machines |
Country Status (2)
| Country | Link |
|---|---|
| US (2) | US2677383A (en) |
| GB (1) | GB667000A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2905092A (en) * | 1954-09-01 | 1959-09-22 | Gen Motors Corp | Domestic appliance |
| US3298971A (en) * | 1962-05-17 | 1967-01-17 | Maleic anhydride-tertiary amine adduct foaming agent | |
| US9303647B2 (en) | 2011-08-15 | 2016-04-05 | Dale A. Conway | Centrifugal pump anti-air locking system |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB386432A (en) * | 1932-01-01 | 1933-01-19 | Arthur Chester Daman | Improvements in or relating to centrifugal pumps |
| US2416031A (en) * | 1942-01-31 | 1947-02-18 | Fmc Corp | Centrifugal pump |
| GB557524A (en) * | 1942-04-20 | 1943-11-24 | Self Priming Pump & Eng Co Ltd | Improvements in or relating to motor-driven centrifugal pumps for liquid |
| US2418184A (en) * | 1943-11-18 | 1947-04-01 | Ingersoll Rand Co | Pumping mechanism |
| US2408918A (en) * | 1944-03-25 | 1946-10-08 | Curtis Pump Co | Slotted throat booster pump |
| US2657695A (en) * | 1946-08-24 | 1953-11-03 | Gen Electric | Dishwashing apparatus provided with centrifugal separation sump |
| US2684635A (en) * | 1949-03-09 | 1954-07-27 | Harvey E Winkelman | Centrifugal pump |
-
1950
- 1950-01-30 GB GB2386/50A patent/GB667000A/en not_active Expired
-
1952
- 1952-05-10 US US287148A patent/US2677383A/en not_active Expired - Lifetime
- 1952-05-10 US US287149A patent/US2746393A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US2746393A (en) | 1956-05-22 |
| US2677383A (en) | 1954-05-04 |
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