Patent US3207447A successfully refreshed from Google Patents.
US3207447A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of crushing ores with explosive energy released in a liquid medium, and apparatus therefor
Assignee: Kennecott Corp
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Filing: 1963-08-22
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Granted: 1965-09-21
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Expires: 1983-08-22
Abstract
No abstract record available.
Inventors
- 👤 Latham E Whitham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:38
CPC Classifications
B; B02; B02C; B02C19/00; B02C19/18; B02C2019/183
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
104 words
A METHOD OF CRUSHING MASSED DISCRETE PIECES OR PARTICLES OF SOLID MATERIALS SUCH AS ORE, COMPRISING THE STEPS OF: MIXING THE MATERIAL TO BE CRUSHED WITH A LIQUID TO FORM A SLURRY; PASSING THE SLURRY THROUGH A CONFINING VESSEL, WHILE MAINTAINING SAID VESSEL SUBSTANTIALLY COMPLETELY FULL OF THE SLURRY AT ALL TIMES; PERIODICALLY GENERATING EXPLOSIONS IN SAID SLURRY AT SPACED INTERVALS ALONG THE CONFINING VESSEL; AND DIRECTING THE SHOCK WAVES AND COMPRESSIVE FORCES RESULTING FROM SAID EXPLOSIONS TOWARD THE INTERIOR OF THE VESSEL, WHEREBY SHOCK WAVES PROPAGATE IN THE LIQUID, CONTACT THE SOLID MATERIAL TO BE CRUSHED, AND SET UP REVERBERATING TENSILE STRESSES THEREIN.
Claim 2
Independent Claim
104 words
A METHOD OF CRUSHING MASSED DISCRETE PIECES OR PARTICLES OF SOLID MATERIALS SUCH AS ORE, COMPRISING THE STEPS OF: MIXING THE MATERIAL TO BE CRUSHED WITH A LIQUID TO FORM A SLURRY; PASSING THE SLURRY THROUGH A CONFINING VESSEL, WHILE MAINTAINING SAID VESSEL SUBSTANTIALLY COMPLETELY FULL OF THE SLURRY AT ALL TIMES; PERIODICALLY GENERATING EXPLOSIONS IN SAID SLURRY AT SPACED INTERVALS ALONG THE CONFINING VESSEL; AND DIRECTING THE SHOCK WAVES AND COMPRESSIVE FORCES RESULTING FROM SAID EXPLOSIONS TOWARD THE INTERIOR OF THE VESSEL, WHEREBY SHOCK WAVES PROPAGATE IN THE LIQUID, CONTACT THE SOLID MATERIAL TO BE CRUSHED, AND SET UP REVERBERATING TENSILE STRESSES THEREIN.
Claim 3
Dependent Claim
94 words
A CRUSHER, COMPRISING: AN ELONGATE HOUSING FORMING A LIQUID-CONTAINING VESSEL; MEANS AT ONE END OF THE HOUSING FOR INTRODUCING MATERIAL TO BE CRUSHED; MEANS FOR INTRODUCING A SLURRYFORMING LIQUID INTO SAID HOUSING; OUTLET MEANS FOR SLURRY AT THE OTHER END OF SAID HOUSING; A PLURALITY OF EXPLOSION-GENERATING MEANS SPACED ALONG THE LENGTH OF THE HOUSING; AND MEANS FOR PERIODICALLY ACTUATING SAID EXPLOSION-GENERATING MEANS TO CREATE SHOCK WAVES ANS COMPRESSIVE FORCES IN THE SLURRY, WHEREBY THE MATERIAL TO BE CRUSHED IS SUBJECTED TO REPEATED SHOCK WAVES AND COMPRESSIVE FORCES AS IT PASSES THROUGH THE HOUSING.
Claim 4
Dependent Claim
94 words
A CRUSHER, COMPRISING: AN ELONGATE HOUSING FORMING A LIQUID-CONTAINING VESSEL; MEANS AT ONE END OF THE HOUSING FOR INTRODUCING MATERIAL TO BE CRUSHED; MEANS FOR INTRODUCING A SLURRYFORMING LIQUID INTO SAID HOUSING; OUTLET MEANS FOR SLURRY AT THE OTHER END OF SAID HOUSING; A PLURALITY OF EXPLOSION-GENERATING MEANS SPACED ALONG THE LENGTH OF THE HOUSING; AND MEANS FOR PERIODICALLY ACTUATING SAID EXPLOSION-GENERATING MEANS TO CREATE SHOCK WAVES ANS COMPRESSIVE FORCES IN THE SLURRY, WHEREBY THE MATERIAL TO BE CRUSHED IS SUBJECTED TO REPEATED SHOCK WAVES AND COMPRESSIVE FORCES AS IT PASSES THROUGH THE HOUSING.
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) | 1968-09-20 | 1969-03-22 | 1969-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-20 | 1973-03-22 | 1973-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-20 | 1977-03-22 | 1977-09-21 | $7700.00 | Window Closed / Lapsed |