US3890223A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Jig for the preparation of coal
Assignee: Kloeckner Humboldt Deutz AG
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Filing: 1973-05-01
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Granted: 1975-06-17
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Expires: 1993-05-01
Abstract
Abstract A mechanism known to the art as a jig for the preparation of a material such as coal including a housing for containing the coal in water and having a horizontal settling sieve member therein with a coal inlet and with outlets, and having an air inlet beneath the sieve controlled by a valve for pushing the coal and water upwardly in a pulsating movement and having an air outlet conduit leading from beneath the sieve with the conduit having discharge lines controlled by intermittent valves and leading to a manifold with the flow from the manifold controlled by a throttling valve.
Inventors
- 👤 Hans Stern
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 02:06
CPC Classifications
B; B03; B03B; B03B5/00; B03B5/02; B03B5/10; B03B5/20
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
134 words
A JIG FOR THE PREPARATION OF MATERIAL SUCH AS COAL COMPRISING IN COMBINATION: A HOUSING FOR CONTAINING MATERIAL IN WATER AND HAVING A SETTLING SIEVE MEMBER THEREIN WITH A MATERIAL DISCHARGE OPENING AND A MATERIAL INTAKE OPENING; AN AIR INLET MEANS FOR DELIVERY OF AIR UNDER PRESSURE INTO A SPACE BELOW THE SIEVE MEMBER; AN AIR OUTLET MEANS FOR DISCHARGING AIR FROM SAID SPACE SO THAT AIR WILL MOVE THE MATERIAL AND WATER IN THE HOUSING RELATIVE TO THE SIEVE MEMBER; AND AN AIR FLOW VALVE MEANS CONNECTED TO SAID AIR OUTLET FOR CONTROLLING THE RATE OF ESCAPE OF AIR THROUGH SAID AIR OUTLET, AND VALVE MEANS INCLUDING AN INTERMITTENTLY OPERATING PULSATING VLVE AND A THROTTLE VALVE DOWNSTREAM A SUFFICIENT DISTANCE FROM THE INTERMITTENT VALVE TO PERMIT EXPANSION OF GAS LEAVING SAID PULSATING VALVE.
Claim 2
Dependent Claim
134 words
A JIG FOR THE PREPARATION OF MATERIAL SUCH AS COAL COMPRISING IN COMBINATION: A HOUSING FOR CONTAINING MATERIAL IN WATER AND HAVING A SETTLING SIEVE MEMBER THEREIN WITH A MATERIAL DISCHARGE OPENING AND A MATERIAL INTAKE OPENING; AN AIR INLET MEANS FOR DELIVERY OF AIR UNDER PRESSURE INTO A SPACE BELOW THE SIEVE MEMBER; AN AIR OUTLET MEANS FOR DISCHARGING AIR FROM SAID SPACE SO THAT AIR WILL MOVE THE MATERIAL AND WATER IN THE HOUSING RELATIVE TO THE SIEVE MEMBER; AND AN AIR FLOW VALVE MEANS CONNECTED TO SAID AIR OUTLET FOR CONTROLLING THE RATE OF ESCAPE OF AIR THROUGH SAID AIR OUTLET, AND VALVE MEANS INCLUDING AN INTERMITTENTLY OPERATING PULSATING VLVE AND A THROTTLE VALVE DOWNSTREAM A SUFFICIENT DISTANCE FROM THE INTERMITTENT VALVE TO PERMIT EXPANSION OF GAS LEAVING SAID PULSATING VALVE.
Claim 3
Dependent Claim
30 words
A jig for the preparation of a material such as coal constructed in accordance with claim 1: wherein said air outlet means includes plural conduits controlled by said throttle valve.
Claim 4
Dependent Claim
29 words
A jig for the preparation of a material such as coal constructed in accordance with claim 2: wherein each of said conduits is controlled by an individual pulsating valve.
Claim 5
Dependent Claim
48 words
A jig for the preparation of a material such as coal constructed in accordance with claim 2: wherein each of the conduits is controlled by an individual pulsating valve and the conduits lead to a manifold with said throttle valve controlling the flow of air from the manifold.
Claim 6
Dependent Claim
27 words
A jig for the preparation of a material such as coal constructed in accordance with claim 1: wherein said air inlet means includes a plurality of conduits.
Claim 7
Dependent Claim
35 words
A jig for the preparation of a material such as coal constructed in accordance with claim 1: and including a pressure valve in said air outlet closing at a minimum pressure in the jig outlet.
Claim 8
Dependent Claim
30 words
A jig for the preparation of a material such as coal constructed in accordance with claim 1: and including an expansion chamber between said pulsating valve and said throttle valve.
Claim 9
Dependent Claim
49 words
A jig for thE preparation of a material such as coal constructed in accordance with claim 1: and including a minimum pressure relief valve connected to said air outlet means and closing to prevent the excess flow of air at a minimum pressure within the area below said sieve.
Claim 10
Dependent Claim
47 words
A jig for the preparation of a material such as coal constructed in accordance with claim 1: wherein pulsating valve means are connected to said air inlet means and to said air outlet means for causing movement of the material within the housing relative to settling sieve.
Claim 11
Independent Claim
79 words
The method of controlling the flow of air through a jig for the preparation of a material such as coal wherein the settling tank includes a housing with a settling sieve therein and an air inlet and an air outlet for a space below the sieve which comprises the steps of: directing air at a pressure into the air inlet, intermittently relieving the air, expanding and throttling the intermittently released air flow through the outlet at a controlled rate.
Claim 12
Independent Claim
79 words
The method of controlling the flow of air through a jig for the preparation of a material such as coal wherein the settling tank includes a housing with a settling sieve therein and an air inlet and an air outlet for a space below the sieve which comprises the steps of: directing air at a pressure into the air inlet, intermittently relieving the air, expanding and throttling the intermittently released air flow through the outlet at a controlled rate.
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) | 1978-06-16 | 1978-12-16 | 1979-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-16 | 1982-12-16 | 1983-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-16 | 1986-12-16 | 1987-06-17 | $7700.00 | Window Closed / Lapsed |