US4037770A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tool using caseless ammunition
Assignee: Illinois Tool Works Inc
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Filing: 1976-06-11
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Granted: 1977-07-26
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Expires: 1996-06-11
Abstract
Abstract The recess for the ammunition comprises two blind bores whose width is equal to, or greater than, the thickness of the ammunition and whose depth is similar to, or greater than, the diameter of the ammunition, whereby the said blind bores are connected by a groove issuing over a part of the height thereof which is at least equal to the diameter of the ammunition, while the duct or ducts issue into the bottom of at least one of the blind bores.
Inventors
- 👤 Roger Dorgnon
- 👤 Marc Combette
- 👤 Jean Luthringer
- 👤 Jean Ollivier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 14:34
CPC Classifications
B; B25; B25C; B25C1/00; B25C1/08; B25C1/082
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
99 words
A power-actuated tool of the type utilizing caseless ammunition pellets contained in a recess in a cylindrical breech, said recess for the ammunition comprising two blind bores each of whose diameter is greater than the thickness of the ammunition pellet and whose depth is similar to or greater than the diameter of the ammunition pellet, said blind bores being connected by a slot having a depth which is at least equal to the diameter of the ammunition pellet and further comprising at least one combustion gas duct opening into the bottom of at least one of the blind bores.
Claim 2
Dependent Claim
99 words
A power-actuated tool of the type utilizing caseless ammunition pellets contained in a recess in a cylindrical breech, said recess for the ammunition comprising two blind bores each of whose diameter is greater than the thickness of the ammunition pellet and whose depth is similar to or greater than the diameter of the ammunition pellet, said blind bores being connected by a slot having a depth which is at least equal to the diameter of the ammunition pellet and further comprising at least one combustion gas duct opening into the bottom of at least one of the blind bores.
Claim 3
Dependent Claim
13 words
The tool of claim 1, wherein said bores have a conical bottom surface.
Claim 4
Dependent Claim
17 words
The tool of claim 1, wherein said breech is integral with a barrel member of the tool.
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) | 1980-07-25 | 1981-01-24 | 1981-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-07-25 | 1985-01-24 | 1985-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-07-25 | 1989-01-24 | 1989-07-26 | $7700.00 | Window Closed / Lapsed |