US3172199A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of hardening
Assignee: Individual
•
Filing: 1962-09-19
•
Granted: 1965-03-09
•
Expires: 1982-09-19
Abstract
No abstract record available.
Inventors
- 👤 Schmidt William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:26
CPC Classifications
C; C21; C21D; C21D10/00; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49805; Y10T29/49806; Y10T29/4981; Y10T29/49812
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
THE METHOD OF HARDENING, BY THE USE OF EXPLOSIVE, A MATERIAL SUCH AS METAL HAVING A PLURALITY OF SURFACES AND HAVING A PREDETERMINED DENSITY AND VELOCITY OF SOUND PROPAGATION, WHICH COMPRISES APPLYING IN PROXIMITY TO ONE OF ITS SAID SURFACES AN EXPLOSIVE HAVING A VELOCITY OF DETONATION SUBSTANTIALLY EXCEEDING THE SAID VELOCITY OF SOUND PROPAGATION IN THE MATERIAL, APPLYING TO ANOTHER SURFACE OF THE MATERIAL A SUBSTANCE HAVING A DENSITY LYING WITHIN THE RANGE OF FROM ABOUT 40% TO 70% THAT OF THE MATERIAL TO BE HARDENED AND HAVING A VELOCITY OF SOUND PROPAGATION LYING WITHIN THE RANGE OF FROM ABOUT 15% TO ABOUT 40% THAT OF THE MATERIAL TO BE HARDENED, DETONATING THE SAID EXPLOSIVE, AND HARDENING THE MATERIAL BY THE COMPRESSIVE AND TENSILE STRESSES WITHIN THE MATERIAL THEREBY GENERATED.
Claim 2
Independent Claim
131 words
THE METHOD OF HARDENING, BY THE USE OF EXPLOSIVE, A MATERIAL SUCH AS METAL HAVING A PLURALITY OF SURFACES AND HAVING A PREDETERMINED DENSITY AND VELOCITY OF SOUND PROPAGATION, WHICH COMPRISES APPLYING IN PROXIMITY TO ONE OF ITS SAID SURFACES AN EXPLOSIVE HAVING A VELOCITY OF DETONATION SUBSTANTIALLY EXCEEDING THE SAID VELOCITY OF SOUND PROPAGATION IN THE MATERIAL, APPLYING TO ANOTHER SURFACE OF THE MATERIAL A SUBSTANCE HAVING A DENSITY LYING WITHIN THE RANGE OF FROM ABOUT 40% TO 70% THAT OF THE MATERIAL TO BE HARDENED AND HAVING A VELOCITY OF SOUND PROPAGATION LYING WITHIN THE RANGE OF FROM ABOUT 15% TO ABOUT 40% THAT OF THE MATERIAL TO BE HARDENED, DETONATING THE SAID EXPLOSIVE, AND HARDENING THE MATERIAL BY THE COMPRESSIVE AND TENSILE STRESSES WITHIN THE MATERIAL THEREBY GENERATED.
References Cited (Backward Citations)
US2703297A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-08 | 1968-09-07 | 1969-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-08 | 1972-09-07 | 1973-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-08 | 1976-09-07 | 1977-03-09 | $7700.00 | Window Closed / Lapsed |