GB571584A - Improvements in or relating to suction cleaners - Google Patents
Improvements in or relating to suction cleanersInfo
- Publication number
- GB571584A GB571584A GB3511/44A GB351144A GB571584A GB 571584 A GB571584 A GB 571584A GB 3511/44 A GB3511/44 A GB 3511/44A GB 351144 A GB351144 A GB 351144A GB 571584 A GB571584 A GB 571584A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cleaning nozzle
- nozzle
- main
- filter
- ratchet
- 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
-
- 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
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/0072—Mechanical means for controlling the suction or for effecting pulsating action
-
- 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
- A47L5/00—Structural features of suction cleaners
- A47L5/12—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum
- A47L5/22—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum with rotary fans
- A47L5/36—Suction cleaners with hose between nozzle and casing; Suction cleaners for fixing on staircases; Suction cleaners for carrying on the back
- A47L5/365—Suction cleaners with hose between nozzle and casing; Suction cleaners for fixing on staircases; Suction cleaners for carrying on the back of the vertical type, e.g. tank or bucket type
-
- 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
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/20—Means for cleaning filters
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Nozzles For Electric Vacuum Cleaners (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
571,584. Suction cleaners. HOOVER, Ltd. Feb. 25, 1944, No. 3511. Convention date, April 26, 1943. [Classes 8 (i) and 8 (ii)] In a fan suction cleaner of the type comprising a preliminary separator or whirling chamber 12, Fig. 1, a final separating chamber 31 containing a filter bag 32, and a filter cleaning nozzle which returns dirt to the preliminary chamber or inlet port, the filter cleaning nozzle is caused to move over the filter in response to movement of casing or main cleaning nozzle. Step by step rotation of the filter cleaning nozzle is effected by pawl and ratchet 74, 58. The ratchet is fixed to the bushing of the nozzle arm 47 and the pawl is carried by a bell-crank lever 71 pivotally mounted on a bracket 72 on an inner casing wall 54. The upper arm of the lever is bracketed to lower plate 66 of bellows 61 connected by conduit 67 to the main inlet 23.,; where pressure changes cause the lower bellows plate to reciprocate and the filter cleaning nozzle to rotate. Such pressure changes are induced by a rocking plate 76 pivotally,.mounted in the main nozzle 10 admitting additional air on each reversal of direction of movement of the main nozzle. In a modification, Figs. 8 and 9, the ratchet 58 is rotated by a spring loaded pawl 86 carried by a spring controlled armature 82 of a solenoid 81 energised by a bob-weight operated switch located between the outer casing 1 and the preliminary separator 12 and actuated by movement of the cleaner.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US484515A US2406915A (en) | 1943-04-26 | 1943-04-26 | Suction cleaner |
Publications (1)
Publication Number | Publication Date |
---|---|
GB571584A true GB571584A (en) | 1945-08-30 |
Family
ID=23924466
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3511/44A Expired GB571584A (en) | 1943-04-26 | 1944-02-25 | Improvements in or relating to suction cleaners |
GB3509/44A Expired GB572065A (en) | 1943-04-26 | 1944-02-25 | Improvements in or relating to suction cleaners |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3509/44A Expired GB572065A (en) | 1943-04-26 | 1944-02-25 | Improvements in or relating to suction cleaners |
Country Status (3)
Country | Link |
---|---|
US (1) | US2406915A (en) |
CH (2) | CH241885A (en) |
GB (2) | GB571584A (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2648867A (en) * | 1946-05-10 | 1953-08-18 | Separator Ab | Currying machine for connection with vacuum systems |
US2605857A (en) * | 1946-08-09 | 1952-08-05 | Hoover Co | Suction cleaner |
US2482166A (en) * | 1947-07-16 | 1949-09-20 | William I Gage | Stationary filter type suction cleaner |
FI71660C (en) * | 1983-12-16 | 1990-11-11 | Martti Ilmari Ollila | SUGARE. |
US5218736A (en) * | 1990-01-12 | 1993-06-15 | Trc Acquisition Corporation | Vacuum cleaner |
EP0437109A3 (en) * | 1990-01-12 | 1991-10-30 | Trc Acquisition Corporation | Hand-held corded vacuum cleaner |
-
1943
- 1943-04-26 US US484515A patent/US2406915A/en not_active Expired - Lifetime
-
1944
- 1944-02-25 GB GB3511/44A patent/GB571584A/en not_active Expired
- 1944-02-25 GB GB3509/44A patent/GB572065A/en not_active Expired
- 1944-04-25 CH CH241885D patent/CH241885A/en unknown
- 1944-04-25 CH CH243324D patent/CH243324A/en unknown
Also Published As
Publication number | Publication date |
---|---|
US2406915A (en) | 1946-09-03 |
CH243324A (en) | 1946-07-15 |
GB572065A (en) | 1945-09-20 |
CH241885A (en) | 1946-04-15 |
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