GB514140A - Improvements in vacuum cleaners - Google Patents
Improvements in vacuum cleanersInfo
- Publication number
- GB514140A GB514140A GB34516/38A GB3451638A GB514140A GB 514140 A GB514140 A GB 514140A GB 34516/38 A GB34516/38 A GB 34516/38A GB 3451638 A GB3451638 A GB 3451638A GB 514140 A GB514140 A GB 514140A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bag
- air
- hole
- spring
- drawn
- 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
- A47L9/20—Means for cleaning filters
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Filters For Electric Vacuum Cleaners (AREA)
Abstract
514,140. Vacuum-cleaner dust bags. LEHMKUHL, J. Nov. 26, 1938, No. 34516. Convention date, July 6. [Class 8 (ii)] The filter bag 4 of a vacuum cleaner, into which dusty air is drawn through a suction hose 3, is located in. a casing 1 formed with a hole 5 with a closure 6, so that when the hose is put out of action, by inserting its end in a cup 7, the valve 6 is held open and the air drawn in vibrates the bag and shakes the dust from its surface either by direct impact of the air on the bag, or indirectly, e.g., by operating a turbine 14, Fig. 2, bearing cams 18 acting in springs 21 to shake the bag. In a modification, a rack rod is attached to a heating spring and meshes with the pinion of a throttle valve in the air hole, so that the entering air forces the spring against the bag and simultaneously closes the hole, the spring then being returned by its elasticity and re-opening the hole.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE514140X | 1938-07-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB514140A true GB514140A (en) | 1939-10-31 |
Family
ID=20311047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB34516/38A Expired GB514140A (en) | 1938-07-06 | 1938-11-26 | Improvements in vacuum cleaners |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB514140A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3383840A (en) * | 1966-05-10 | 1968-05-21 | Cottrell Res Inc | Dust collecting system |
| WO2017001836A1 (en) * | 2015-07-01 | 2017-01-05 | Dyson Technology Limited | A separating apparatus |
| US10143345B2 (en) | 2016-01-22 | 2018-12-04 | Dyson Technology Limited | Vacuum cleaning apparatus |
| US10299648B2 (en) | 2016-01-22 | 2019-05-28 | Dyson Technology Limited | Vacuum cleaner |
| US10390670B2 (en) | 2016-01-22 | 2019-08-27 | Dyson Technology Limited | Separating apparatus and vacuum cleaner |
| US10842332B2 (en) | 2015-07-01 | 2020-11-24 | Dyson Technology Limited | Separating apparatus |
-
1938
- 1938-11-26 GB GB34516/38A patent/GB514140A/en not_active Expired
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3383840A (en) * | 1966-05-10 | 1968-05-21 | Cottrell Res Inc | Dust collecting system |
| WO2017001836A1 (en) * | 2015-07-01 | 2017-01-05 | Dyson Technology Limited | A separating apparatus |
| US10842332B2 (en) | 2015-07-01 | 2020-11-24 | Dyson Technology Limited | Separating apparatus |
| US10953359B2 (en) | 2015-07-01 | 2021-03-23 | Dyson Technology Limited | Separating apparatus |
| US10143345B2 (en) | 2016-01-22 | 2018-12-04 | Dyson Technology Limited | Vacuum cleaning apparatus |
| US10299648B2 (en) | 2016-01-22 | 2019-05-28 | Dyson Technology Limited | Vacuum cleaner |
| US10390670B2 (en) | 2016-01-22 | 2019-08-27 | Dyson Technology Limited | Separating apparatus and vacuum cleaner |
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