US3325075A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tool for explosive spot welding
Assignee: Asahi Kasei Corp
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Filing: 1964-12-28
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Granted: 1967-06-13
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Expires: 1984-12-28
Abstract
No abstract record available.
Inventors
- 👤 Higuchi Ryuichiro
- 👤 Niwatsukino Toru
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:35
CPC Classifications
B; B23; B23K; B23K20/00; B23K20/06; B23K20/08; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49805; Y10T29/49806
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
A TOOL FOR EXPLOSIVE SPOT WELDING, COMPRISING A HANDLE, A BODY SLIDABLY MOUNTED IN SAID HANDLE AND ADAPTED FOR SUPPORTING A CONTAINER OF EXPLOSIVE HAVING A PREDETERMINED EXPLOSIVE FORCE, A SPRING BETWEEN SAID BODY AND SAID HANDLE HAVING A SPRING STRENGTH GREATER THAN THE FORCE OF THE EXPLOSION OF SAID CONTAINER, A HOLDER FOR SAID CONTAINER SECURED TO THE LOWER PORTION OF SAID BODY AND HAVING ELECTRODES CONNECTED THERETO, A PROTECTOR SECURED TO SAID BODY AND SURROUNDING THE LOWER PORTION THEREOF AS WELL AS SAID HOLDER AND THE CONTAINER OF EXPLOSIVE SUPPORTED THEREFROM, AND AN ELECTRICAL FIRING CIRCUIT CONNECTED TO SAID ELECTRODES AND INCLUDING ACTIVATION MEANS IN SAID HANDLE FOR THE DETONATION OF SAID EXPLOSIVE, THE ACTIVATION MEANS INCLUDING A SWITCH WHICH IS ACTUATED
Claim 2
Dependent Claim
124 words
A TOOL FOR EXPLOSIVE SPOT WELDING, COMPRISING A HANDLE, A BODY SLIDABLY MOUNTED IN SAID HANDLE AND ADAPTED FOR SUPPORTING A CONTAINER OF EXPLOSIVE HAVING A PREDETERMINED EXPLOSIVE FORCE, A SPRING BETWEEN SAID BODY AND SAID HANDLE HAVING A SPRING STRENGTH GREATER THAN THE FORCE OF THE EXPLOSION OF SAID CONTAINER, A HOLDER FOR SAID CONTAINER SECURED TO THE LOWER PORTION OF SAID BODY AND HAVING ELECTRODES CONNECTED THERETO, A PROTECTOR SECURED TO SAID BODY AND SURROUNDING THE LOWER PORTION THEREOF AS WELL AS SAID HOLDER AND THE CONTAINER OF EXPLOSIVE SUPPORTED THEREFROM, AND AN ELECTRICAL FIRING CIRCUIT CONNECTED TO SAID ELECTRODES AND INCLUDING ACTIVATION MEANS IN SAID HANDLE FOR THE DETONATION OF SAID EXPLOSIVE, THE ACTIVATION MEANS INCLUDING A SWITCH WHICH IS ACTUATED
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) | 1970-06-12 | 1970-12-12 | 1971-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-12 | 1974-12-12 | 1975-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-12 | 1978-12-12 | 1979-06-13 | $7700.00 | Window Closed / Lapsed |