US3665768A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device of measuring fluid characteristic of powdered or granular materials
Assignee: Hosokawa Funtai Kogaku Kenkyusho KK
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Filing: 1970-11-10
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Granted: 1972-05-30
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Expires: 1990-11-10
Abstract
Abstract A device for measuring characteristics of powdered and granular materials which includes apparatus for measuring the angle-ofrepose, cohesiveness, aerated bulk density, packed bulk density, angle-of-spatula, dispersability, and angle-of-fall.
Inventors
- 👤 Masuo Hosokawa
- 👤 Tohei Yokoyama
- 👤 Kiyoshi Urayama
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:16
CPC Classifications
G; G01; G01N; G01N11/00; G01N33/00; G01N33/0091
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
161 words
A device for measuring characteristics of powdered and granular materials, characterized by provision in combination of an angle of repose, cohesiveness and aerated bulk density measuring unit including a vibratory base plate, a plurality of sieves to be selectively attached to said base plate and a horizontal circular disc plate and a cup for receiving said materials passing said sieves, a packed bulk density measuring unit including a tapping mechanism for tapping said cup to tighten said materials, an angle of spatula measuring unit including a horizontal rectangular plate and a material container at least one of which is movable vertically with respect to the other, a dispersability measuring unit including a material container having a quickly openable bottom plate and a receptacle placed under said container for receiving said materials falling therefrom, and an angle of fall measuring unit including said circular disc plate and a weight to be let fall near said circular disc plate from a predetermined height.
Claim 2
Independent Claim
161 words
A device for measuring characteristics of powdered and granular materials, characterized by provision in combination of an angle of repose, cohesiveness and aerated bulk density measuring unit including a vibratory base plate, a plurality of sieves to be selectively attached to said base plate and a horizontal circular disc plate and a cup for receiving said materials passing said sieves, a packed bulk density measuring unit including a tapping mechanism for tapping said cup to tighten said materials, an angle of spatula measuring unit including a horizontal rectangular plate and a material container at least one of which is movable vertically with respect to the other, a dispersability measuring unit including a material container having a quickly openable bottom plate and a receptacle placed under said container for receiving said materials falling therefrom, and an angle of fall measuring unit including said circular disc plate and a weight to be let fall near said circular disc plate from a predetermined height.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-05-30 | 1975-11-29 | 1976-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-30 | 1979-11-29 | 1980-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-30 | 1983-11-29 | 1984-05-30 | $7700.00 | Window Closed / Lapsed |