US3076408A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Controlled fracturing of solids by explosives
Assignee: Borg Warner Corp
•
Filing: 1958-06-11
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Granted: 1963-02-05
•
Expires: 1978-06-11
Abstract
No abstract record available.
Inventors
- 👤 Thomas C Poulter
- 👤 Eugene F Poncelet
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:37
CPC Classifications
F; F42; F42D; F42D1/00; B; B26; B26F; B26F3/00; B26F3/04; F42B; F42B1/00; F42D1/04; F42D3/00; Y; Y10; Y10S; Y10S102/00; Y10S102/701; Y10T; Y10T225/00; Y10T225/10; Y10T29/00; Y10T29/49; Y10T29/49805; Y10T29/49806
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
A METHOD OF FRACTURING ALONG A PREDETERMINED INTERNAL PLANE A BODY OF METAL OR OTHER NORMALLY SOLID SUBSTANCE FLOWABLE UNDER EXTREME PRESSURE, COMPRISING THE STEPS OF COVERING A PORTION OF A SURFACE OF THE BODY NORMAL TO SAID PLANE WITH A LAYER OF EXPLOSIVE EXTENDING ON OPPOSITE SIDES OF SAID PLANE IN CONTINUOUS SUBSTANTIAL CONTACT WITH SAID PORTION, THE BREADTH OF SAID LAYER ADJACENT SAID PLANE BEING NOT LESS THAN ONE-HALF THE LENGTH OF THE FRACTURE AS MEASURED ALONG SAID SURFACE, AND INITIATING DETONATION OF THE EXPLOSIVE SIMULTANEOUSLY AT POINTS EQUIDISTANT FROM SAID PLANE AT OPPOSITE SIDES THEREOF, TO EFFECT FRACTURING OF SAID BODY SUBSTANTIALLY SOLELY ALONG SAID INTERNAL PLANE.
Claim 2
Independent Claim
110 words
A METHOD OF FRACTURING ALONG A PREDETERMINED INTERNAL PLANE A BODY OF METAL OR OTHER NORMALLY SOLID SUBSTANCE FLOWABLE UNDER EXTREME PRESSURE, COMPRISING THE STEPS OF COVERING A PORTION OF A SURFACE OF THE BODY NORMAL TO SAID PLANE WITH A LAYER OF EXPLOSIVE EXTENDING ON OPPOSITE SIDES OF SAID PLANE IN CONTINUOUS SUBSTANTIAL CONTACT WITH SAID PORTION, THE BREADTH OF SAID LAYER ADJACENT SAID PLANE BEING NOT LESS THAN ONE-HALF THE LENGTH OF THE FRACTURE AS MEASURED ALONG SAID SURFACE, AND INITIATING DETONATION OF THE EXPLOSIVE SIMULTANEOUSLY AT POINTS EQUIDISTANT FROM SAID PLANE AT OPPOSITE SIDES THEREOF, TO EFFECT FRACTURING OF SAID BODY SUBSTANTIALLY SOLELY ALONG SAID INTERNAL PLANE.
References Cited (Backward Citations)
US1531555A
Cited
US2163462A
Cited
US2703297A
Cited
US2679783A
Cited
US2774306A
Cited
US2775940A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-02-04 | 1966-08-06 | 1967-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-04 | 1970-08-06 | 1971-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-04 | 1974-08-06 | 1975-02-05 | $7700.00 | Window Closed / Lapsed |