US3785575A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vibrating mill with introduction of refrigerants into the solid material being ground in the grinding chamber
Assignee: Kloeckner Humboldt Deutz AG
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Filing: 1971-11-18
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Granted: 1974-01-15
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Expires: 1991-11-18
Abstract
Abstract A vibrating mill for grinding solid materials is provided with a grinding chamber with at least one or a plurality of spaced feed pipes for refrigerants which terminate within the body of the solid material being ground within the grinding chamber and the amount of the refrigerants introduced is controlled by temperature probe or probes which control valves in said feed pipes.
Inventors
- 👤 J Langmaack
- 👤 H Haas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:52
CPC Classifications
B; B02; B02C; B02C17/00; B02C17/14; B29; B29B; B29B13/00; B29B13/10; Y; Y10; Y10S; Y10S241/00; Y10S241/37
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
85 words
A vibrating mill for the grinding of solid substances comprising in combination: a horizontal elongate grinding chamber; a material feed inlet at one end of the chamber; a material feed outlet at the other end of the chamber; a vibratory drive means connected to the chamber for grinding material therein; an inlet for refrigerant leading into the chamber for the discharge of refrigerant into the material being ground; and a control valve means for said inlet controlling refrigerant flow into the chamber through said inlet.
Claim 2
Dependent Claim
85 words
A vibrating mill for the grinding of solid substances comprising in combination: a horizontal elongate grinding chamber; a material feed inlet at one end of the chamber; a material feed outlet at the other end of the chamber; a vibratory drive means connected to the chamber for grinding material therein; an inlet for refrigerant leading into the chamber for the discharge of refrigerant into the material being ground; and a control valve means for said inlet controlling refrigerant flow into the chamber through said inlet.
Claim 3
Dependent Claim
49 words
A vibrating mill for the grinding of solid substances constructed in accordance with claim 1: wherein a refrigerant outlet is located between said material inlet and outlets and spaced from the top of the chamber to be submerged beneath the level of the material being ground in the chamber.
Claim 4
Dependent Claim
55 words
A vibrating mill for the grinding of solid substances constructed in accordance with claim 1: including a valve connected to said refrigerant inlet for controlling the flow of refrigerant into the chamber; and a temperature sensitive probe within the chamber operatively connected to control the valve responsive to the temperature of material being ground therein.
Claim 5
Dependent Claim
24 words
A vibrating mill for the grinding of solid substances constructed in accordance with claim 3: wherein said probe is located adjacent said material outlet.
Claim 6
Dependent Claim
38 words
A vibrating mill for the grinding of solid substances constructed in accordance with claim 1: and including a refrigerant gas outlet adjacent the top of the chamber for the escape of refrigerant entering the chamber through said opening.
Claim 7
Dependent Claim
38 words
A vibrating mill for the grinding of solid substances constructed in accordance with claim 1: including a material separating screen across the outlet end of said chamber so that material flowing through said outlet must pass said screen.
Claim 8
Dependent Claim
25 words
A vibrating mill for the grinding of solid substances constructed in accordance with claim 3: wherein said probe is located upstream of said refrigerant outlet.
Claim 9
Dependent Claim
63 words
A vibrating mill for the grinding of solid substances constructed in accordance with claim 1: including a second chamber connected to said drive means and having an inlet connected to the material outlet for the first chamber and having an outlet at the end of the chamber opposite the material inlet; and means for directing a flow of refrigerant into said second chamber.
Claim 10
Dependent Claim
152 words
A vibrating mill for the grinding of solid substances constructed in accordance with claim 1: including a second refrigerant inlet leading into the chamber having an opening positioned near a lower portion of the chamber for discharging refrigerant below the material being processed; a screen across the discharge end of the chamber; first and second temperature sensitive probes for controlling inlet valves for respectively the first and second reFrigerant inlets; a second chamber having an inlet connected to the outlet for the first chamber; an outlet for said second chamber at the end opposite the inlet end; a screen across the outlet end of said second chamber; a screen across the outlet end of said first chamber; first and second refrigerant inlets leading into said second chamber; and first and second temperature sensitive probes connected to valves for the refrigerant inlets for the second chamber and being positioned within the second chamber.
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) | 1977-01-14 | 1977-07-16 | 1978-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-14 | 1981-07-16 | 1982-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-14 | 1985-07-16 | 1986-01-15 | $7700.00 | Window Closed / Lapsed |