GB470677A - Improvements in and relating to vacuum cleaners - Google Patents
Improvements in and relating to vacuum cleanersInfo
- Publication number
- GB470677A GB470677A GB27747/36A GB2774736A GB470677A GB 470677 A GB470677 A GB 470677A GB 27747/36 A GB27747/36 A GB 27747/36A GB 2774736 A GB2774736 A GB 2774736A GB 470677 A GB470677 A GB 470677A
- Authority
- GB
- United Kingdom
- Prior art keywords
- closed
- annular
- richter
- outlet tube
- valves
- 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
- A47L5/00—Structural features of suction cleaners
- A47L5/02—Structural features of suction cleaners with user-driven air-pumps or compressors
- A47L5/04—Structural features of suction cleaners with user-driven air-pumps or compressors with pistons, bellows, or diaphragms, e.g. driven by the cleaner-supporting wheels
Landscapes
- Details Of Reciprocating Pumps (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
470,677. Vacuum cleaners. RICHTER, F., and RICHTER, J. Oct. 13, 1936, Nos. 27747 and 27748. Convention dates, Nov. 4, 1935 and April 28, 1936. [Class 8 (i)] In hand - operated suction cleaners of the kind where the cylinder 8 of a double - acting pump is enclosed in protecting jacket 17. Annular suction valves are provided in the otherwise closed cylinder ends. The annular delivery valves 10, 15 are provided in the top and bottom surfaces in the hollow lens shaped piston 1<1>, Fig. 2, and are alternately closed by the annular flexible flap 12. The air drawn through the dust bag 7 at each stroke of the piston is discharged through the hollow piston rod 2 which is in tegral with the hand operated slider 3 guided on the fixed outlet tube 16. The suction valves 9, 13 at the cylinder ends are alternately opened and closed. In a modification, the outlet tube is provided with a second filter, such as a sponge, at its exit.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT470677X | 1935-11-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB470677A true GB470677A (en) | 1937-08-19 |
Family
ID=3674748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB27747/36A Expired GB470677A (en) | 1935-11-04 | 1936-10-13 | Improvements in and relating to vacuum cleaners |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE418203A (en) |
| DE (1) | DE646600C (en) |
| FR (1) | FR814305A (en) |
| GB (1) | GB470677A (en) |
| NL (1) | NL42642C (en) |
-
0
- NL NL42642D patent/NL42642C/xx active
- BE BE418203D patent/BE418203A/xx unknown
-
1936
- 1936-05-08 DE DER96260D patent/DE646600C/en not_active Expired
- 1936-10-13 GB GB27747/36A patent/GB470677A/en not_active Expired
- 1936-11-04 FR FR814305D patent/FR814305A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE418203A (en) | |
| DE646600C (en) | 1937-06-18 |
| FR814305A (en) | 1937-06-21 |
| NL42642C (en) |
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