US3742762A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Impact-type powder/granule flow meter
Assignee: Individual
•
Filing: 1971-04-01
•
Granted: 1973-07-03
•
Expires: 1991-04-01
Abstract
Abstract Impact-type powder/granule flow meter characterized in that a detecting plate is supported by parallel linkage means for constraining the plate to move only a vertical direction.
Inventors
- 👤 H Tomiyasu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:23
CPC Classifications
G; G01; G01F; G01F1/00; G01F1/05; G01F1/20; G01F1/28; G01F1/30
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
143 words
In an impact-type powder/granule flow meter, an elongated, horizontally extending detecting plate having an upwardly directed inclined surface against which freely falling particles strike for urging the detecting plate downwardly, and parallelogram linkage means operatively connected with said detecting plate for constraining the latter to move only in a vertical direction without tilting so that a change in the location of impact with said plate will not influence the detection of the rate of flow, said parallelogram linkage means including at least one parallelogram linkage composed of a vertical support member, a pair of parallel horizontal bars each pivotally connected at one end to said support member, and a Tshaped member having a vertical leg pivotally connected to said horizontal bars distant from said vertical support member and a horizontal leg extending perpendicularly from said vertical leg and fixed with said detecting plate.
Claim 2
Dependent Claim
143 words
In an impact-type powder/granule flow meter, an elongated, horizontally extending detecting plate having an upwardly directed inclined surface against which freely falling particles strike for urging the detecting plate downwardly, and parallelogram linkage means operatively connected with said detecting plate for constraining the latter to move only in a vertical direction without tilting so that a change in the location of impact with said plate will not influence the detection of the rate of flow, said parallelogram linkage means including at least one parallelogram linkage composed of a vertical support member, a pair of parallel horizontal bars each pivotally connected at one end to said support member, and a Tshaped member having a vertical leg pivotally connected to said horizontal bars distant from said vertical support member and a horizontal leg extending perpendicularly from said vertical leg and fixed with said detecting plate.
Claim 3
Dependent Claim
35 words
The combination of claim 1 and wherein said parallelogram linkage means includes only a single parallelogram linkage situated to one side of said plate and fixed thereto to support the same only for vertical movement.
Claim 4
Dependent Claim
30 words
The combination of claim 1 and wherein said parallelogram linkage means includes a pair of said parallelogram linkages respectively situated symmetrically on both sides of said plate and fixed thereto.
References Cited (Backward Citations)
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Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-02 | 1977-01-01 | 1977-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-02 | 1981-01-01 | 1981-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-02 | 1985-01-01 | 1985-07-03 | $7700.00 | Window Closed / Lapsed |