US4327642A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inserts for cutting charges
Assignee: Diehl Verwaltungs Stiftung
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Filing: 1980-01-28
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Granted: 1982-05-04
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Expires: 2000-01-28
Abstract
Abstract Inserts for cutting charges utilized for the shearing or separation of steel plates, cables, bridge girders or the like. The cutting charges are provided with a hollow space in which there are adhered liners or inserts of multi-component structure so as to develope a primary detonating effect in a symmetrical plane. For military purposes the cutting charges have gabled roof-shaped or semicircular inserts, preferably of inert material or metal, such as electrolytic copper.
Inventors
- 👤 Wilhelm Grosse-Benne
- 👤 Paul Beermann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:47
CPC Classifications
F; F42; F42B; F42B1/00; F42B1/02; F42B1/028; B; B21; B21D; B21D28/00; B21D28/007; B26; B26F; B26F3/00; B26F3/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
37 words
An apparatus for the cutting or shearing of man-made structural members, the improvement comprising an insert having at least two parts, said parts forming a gablesided expansion joint, said joint being fully closed in the cut direction.
Claim 2
Independent Claim
37 words
An apparatus for the cutting or shearing of man-made structural members, the improvement comprising an insert having at least two parts, said parts forming a gablesided expansion joint, said joint being fully closed in the cut direction.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-05-03 | 1985-11-02 | 1986-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-05-03 | 1989-11-02 | 1990-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-05-03 | 1993-11-02 | 1994-05-04 | $7700.00 | Window Closed / Lapsed |