GB509582A - Improvements in or relating to filters for aerosols - Google Patents
Improvements in or relating to filters for aerosolsInfo
- Publication number
- GB509582A GB509582A GB37778/38A GB3777838A GB509582A GB 509582 A GB509582 A GB 509582A GB 37778/38 A GB37778/38 A GB 37778/38A GB 3777838 A GB3777838 A GB 3777838A GB 509582 A GB509582 A GB 509582A
- Authority
- GB
- United Kingdom
- Prior art keywords
- aerosols
- filters
- relating
- pleats
- soc
- 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
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B23/00—Filters for breathing-protection purposes
Landscapes
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
Abstract
509,582. Air filters. SOC. ITALIANA PIRELLI. Dec. 29, 1938, No. 37778. Convention date, Jan. 28. [Class 8 (ii)] A filter for aerosols comprises a sheet of paper &c. formed with pleats which are gathered together at the ends and loose in the middle, the periphery being secured to a rigid frame 3, which may be formed in two parts by rubberized fabric &c.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT847651X | 1938-01-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB509582A true GB509582A (en) | 1939-07-18 |
Family
ID=11325370
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB37778/38A Expired GB509582A (en) | 1938-01-28 | 1938-12-29 | Improvements in or relating to filters for aerosols |
Country Status (2)
Country | Link |
---|---|
FR (1) | FR847651A (en) |
GB (1) | GB509582A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3296781A (en) * | 1964-11-10 | 1967-01-10 | Auergesellschaft Gmbh | Filter |
-
1938
- 1938-12-16 FR FR847651D patent/FR847651A/en not_active Expired
- 1938-12-29 GB GB37778/38A patent/GB509582A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3296781A (en) * | 1964-11-10 | 1967-01-10 | Auergesellschaft Gmbh | Filter |
Also Published As
Publication number | Publication date |
---|---|
FR847651A (en) | 1939-10-13 |
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