JPS5512423A - Detection of powder quantity - Google Patents
Detection of powder quantityInfo
- Publication number
- JPS5512423A JPS5512423A JP8467578A JP8467578A JPS5512423A JP S5512423 A JPS5512423 A JP S5512423A JP 8467578 A JP8467578 A JP 8467578A JP 8467578 A JP8467578 A JP 8467578A JP S5512423 A JPS5512423 A JP S5512423A
- Authority
- JP
- Japan
- Prior art keywords
- powder
- switch
- container
- float
- pressure
- 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.)
- Pending
Links
Landscapes
- Level Indicators Using A Float (AREA)
Abstract
PURPOSE: To effect the detection of powder quantity simply, reliably and promptly by blowing air under preset pressure thereby to fluidize the powder.
CONSTITUTION: A powder container 1 is made to have a double bottom construction such that its upper bottom 2 is formed with a number of pores 5 which are uniformly distributed and that the space between the upper and lower bottoms 2 and 3 is connected with an air supply pipe B which is equipped with a needle valve 4. A float switch 6 is arranged above the container. Air under preset pressure is pumped into the space between the two bottoms 2 and 3 and is blown upward from the pores 5 so that the powder A is fluidized to float a float 7. In accordance with the floating degree, the switch 6 is turned on and off to detect the level a of the powder thereby to detect whether the powder A reaches a preset quantity or not. In place of the switch 6, incidentally, a pressure switch 9 is arranged in the vicinity of the inner bottom of the container and may be turned on and off by the pressure which is established when the powder A is fluidized by the air blow.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8467578A JPS5512423A (en) | 1978-07-12 | 1978-07-12 | Detection of powder quantity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8467578A JPS5512423A (en) | 1978-07-12 | 1978-07-12 | Detection of powder quantity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5512423A true JPS5512423A (en) | 1980-01-29 |
Family
ID=13837272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8467578A Pending JPS5512423A (en) | 1978-07-12 | 1978-07-12 | Detection of powder quantity |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5512423A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4566326A (en) * | 1984-07-09 | 1986-01-28 | Quantachrome Corporation | Automatic volumetric sorption analyzer |
-
1978
- 1978-07-12 JP JP8467578A patent/JPS5512423A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4566326A (en) * | 1984-07-09 | 1986-01-28 | Quantachrome Corporation | Automatic volumetric sorption analyzer |
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