US4063456A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and a device for continuously measuring a flow of material
Assignee: Individual
•
Filing: 1974-08-30
•
Granted: 1977-12-20
•
Expires: 1994-08-30
Abstract
Abstract A device and a method for continuously measuring a flow of material in mass per unit time by measuring the momentum occurring by a change of movement of the material utilizing a conveyor to advance the material undergoing measurement at a speed having a known horizontal component. A catching box is movably mounted to serve as an impact device and presents a surface for receiving the material as it is discharged from the end of the conveyor. The discharged material exerts a horizontal force on the catching box which, in turn, causes the speed horizontal component of the material to be reduced to zero. The material is discharged from the catching box in a direction perpendicular to the direction of said speed horizontal component. A force measuring instrument is mounted between the catching box and a stationary support and serves to measure the horizontal force of momentum to which the catching box is subjected by the material impacting upon it.
Inventors
- 👤 Cornelius Otto Jonkers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:35
CPC Classifications
G; G01; G01F; G01F1/00; G01F1/05; G01F1/20; G01F1/28; G01F1/30
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
163 words
A device for continuously measuring a flow of material in mass per unit time by measuring the momentum occurring by a change of movement of the material comprising, in combination, a conveying device for advancing the material at a speed having a known horizontal component, a movably mounted impact device having a surface for receiving material discharged from said conveying device in an impact direction such that the momentum of the material acting in the direction of said speed horizontal component exerts a horizontal force thereon, said impact device being arranged to reduce the speed horizontal component of the material in said impact direction to zero, discharge means for discharging the material from said impact device in a direction perpendicular to the direction of said speed horizontal component, a stationary support, and force measuring means mounted between said impact device and said stationary support for measuring said horizontal force of momentum to which said impact device is subjected by said material impacted thereon.
Claim 2
Independent Claim
163 words
A device for continuously measuring a flow of material in mass per unit time by measuring the momentum occurring by a change of movement of the material comprising, in combination, a conveying device for advancing the material at a speed having a known horizontal component, a movably mounted impact device having a surface for receiving material discharged from said conveying device in an impact direction such that the momentum of the material acting in the direction of said speed horizontal component exerts a horizontal force thereon, said impact device being arranged to reduce the speed horizontal component of the material in said impact direction to zero, discharge means for discharging the material from said impact device in a direction perpendicular to the direction of said speed horizontal component, a stationary support, and force measuring means mounted between said impact device and said stationary support for measuring said horizontal force of momentum to which said impact device is subjected by said material impacted thereon.
Claim 3
Dependent Claim
53 words
A device according to claim 1, wherein the impact device includes a catching box mounted movably with respect to the stationary support, and wherein said force measuring device is mounted between said box and said stationary support for measuring the force on the box in the direction of said horizontal component of speed.
Claim 4
Dependent Claim
42 words
A device according to claim 2, wherein said box is subdivided by upstanding baffles perpendicular to the horixzontal component of speed into compartments for transferring the material into discharging flows of material in a direction perpendicular to said horizontal component of speed.
Claim 5
Dependent Claim
20 words
A device according to claim 3, wherein the baffles terminate with their upper edges at different heights within the box.
Claim 6
Dependent Claim
24 words
A device according to claim 2, wherein one or more catching grids or sieve plates are mounted in said box one above the other.
Claim 7
Dependent Claim
48 words
A device according to claim 1, wherein said impact device comprises a conveyor moving perpendicular to said horizontal component of speed, means for supporting said conveyor movably with respect to said support structure, and wherein said conveyor is connected to said stationary support through said force measuring device.
Claim 8
Dependent Claim
22 words
A device according to claim 1, wherein the impact device is supported by supports movable in the direction of the force measurement.
Claim 9
Independent Claim
147 words
A method for continuously measuring a flow of material in mass per unit time by measuring the momentum ocurring by a change of movement of the material comprising the steps of, discharging flowable material from a source of supply, advancing said discharged flowable material in a path at a speed having a known horizontal component, impacting said moving flowable material onto an impact surface in an impact direction such that the momentum of said impacting material exerts a horizontal force on said impct surface in the direction of said speed horizontal component, reducing the speed of the impacting material in the direction of said speed horizontal component to zero with said impact surface, moving said impacting material from said impact surface in a direction perpendicular to the direction of said speed horizontal component and measuring said horizontal force exerted on said impact surface by said impacting material.
Claim 10
Independent Claim
147 words
A method for continuously measuring a flow of material in mass per unit time by measuring the momentum ocurring by a change of movement of the material comprising the steps of, discharging flowable material from a source of supply, advancing said discharged flowable material in a path at a speed having a known horizontal component, impacting said moving flowable material onto an impact surface in an impact direction such that the momentum of said impacting material exerts a horizontal force on said impct surface in the direction of said speed horizontal component, reducing the speed of the impacting material in the direction of said speed horizontal component to zero with said impact surface, moving said impacting material from said impact surface in a direction perpendicular to the direction of said speed horizontal component and measuring said horizontal force exerted on said impact surface by said impacting material.
Claim 11
Dependent Claim
88 words
A method according to claim 8, wherein said impact surface is provided on a box and wherein said impacting step is carried out by introducing said material into said box, and wherein said step of moving said material from said impact surface is carried out by causing the material to be discharged from the box in a direction perpendicular to said speed horizontal component and wherein said measuring step is carried out by measuring the force exerted on the box in the direction of said speed horizontal component.
Claim 12
Dependent Claim
58 words
A method according to claim 8, wherein said impacting step is carried out by moving said material onto a moving conveyor which has a conveying direction perpendicular to said speed horizontal component and wherein said measuring step is carried out by measuring the horizontal force of momentum on said conveyor in the direction of said speed horizontal component.
References Cited (Backward Citations)
US2033306A
Cited
DE1001828B
Cited
US3206978A
Cited
DE1272012B
Cited
US3429181A
Cited
US3611803A
Cited
US3613449A
Cited
US3640135A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-12-19 | 1981-06-20 | 1981-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-12-19 | 1985-06-20 | 1985-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-12-19 | 1989-06-20 | 1989-12-20 | $7700.00 | Window Closed / Lapsed |