AT338835B - DISPLAY DEVICE FOR THE DEGREE OF POLLUTION OF FILTERS - Google Patents
DISPLAY DEVICE FOR THE DEGREE OF POLLUTION OF FILTERSInfo
- Publication number
- AT338835B AT338835B AT66275A AT66275A AT338835B AT 338835 B AT338835 B AT 338835B AT 66275 A AT66275 A AT 66275A AT 66275 A AT66275 A AT 66275A AT 338835 B AT338835 B AT 338835B
- Authority
- AT
- Austria
- Prior art keywords
- pollution
- filters
- degree
- display device
- display
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/14—Safety devices specially adapted for filtration; Devices for indicating clogging
- B01D35/143—Filter condition indicators
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19742404453 DE2404453A1 (en) | 1974-01-31 | 1974-01-31 | DISPLAY UNIT FOR THE DEGREE OF POLLUTION OF FILTERS |
Publications (2)
Publication Number | Publication Date |
---|---|
ATA66275A ATA66275A (en) | 1977-01-15 |
AT338835B true AT338835B (en) | 1977-09-12 |
Family
ID=5906109
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT66275A AT338835B (en) | 1974-01-31 | 1975-01-29 | DISPLAY DEVICE FOR THE DEGREE OF POLLUTION OF FILTERS |
Country Status (3)
Country | Link |
---|---|
AT (1) | AT338835B (en) |
DE (1) | DE2404453A1 (en) |
FR (1) | FR2259638A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4818385A (en) * | 1987-08-31 | 1989-04-04 | Medley Iii Frank W | Filter with high pressure indicator |
-
1974
- 1974-01-31 DE DE19742404453 patent/DE2404453A1/en not_active Withdrawn
-
1975
- 1975-01-29 AT AT66275A patent/AT338835B/en not_active IP Right Cessation
- 1975-01-31 FR FR7503030A patent/FR2259638A1/en active Granted
Also Published As
Publication number | Publication date |
---|---|
FR2259638A1 (en) | 1975-08-29 |
ATA66275A (en) | 1977-01-15 |
DE2404453A1 (en) | 1975-08-07 |
FR2259638B1 (en) | 1977-04-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ELJ | Ceased due to non-payment of the annual fee | ||
RZN | Patent revoked |