US4712481A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Additive sealing sleeve for a propellent charge for large-calibered ammunition fired from barreled weapons
Assignee: Diehl Verwaltungs Stiftung
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Filing: 1986-12-17
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Granted: 1987-12-15
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Expires: 2006-12-17
Abstract
Abstract An additive sealing or packing sleeve for a propellent charge employed for large-calibered ammunition which is fired from a barrelled weapon or launch tube, which is glued into a shell or cartridge casing. The sleeve consists of a fabric constituting a support for a mixture of wax and titanium dioxide, in which the mixture is covered towards the inside by a polyethylene sheeting, and in which the side of the polyethylene sheeting facing inwardly towards the propellent charge is fully covered by a textile material.
Inventors
- 👤 Hansjorg Heinrich
- 👤 Josef Kraft
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 07:23
CPC Classifications
F; F42; F42B; F42B5/00; F42B5/02; F42B5/24; F42B5/26; F42B5/28; F42B5/295
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
89 words
Additive sealing sleeve for a propellent charge for large-calibered ammunition which is fired from barrelled weapons, said sealing sleeve being adhesively fastened within a cartridge casing, said sealing sleeve being constituted of a fabric material forming a support for a mixture of wax and titanium dioxide, wherein said mixture is covered by a polyethylene sheeting; the improvement comprising in that a textile material covers the surface of said polyethylene sheeting facing towards the propellent charge; and at least one seam connecting said textile material with said additive sealing sleeve.
Claim 2
Dependent Claim
89 words
Additive sealing sleeve for a propellent charge for large-calibered ammunition which is fired from barrelled weapons, said sealing sleeve being adhesively fastened within a cartridge casing, said sealing sleeve being constituted of a fabric material forming a support for a mixture of wax and titanium dioxide, wherein said mixture is covered by a polyethylene sheeting; the improvement comprising in that a textile material covers the surface of said polyethylene sheeting facing towards the propellent charge; and at least one seam connecting said textile material with said additive sealing sleeve.
Claim 3
Dependent Claim
17 words
Additive sealing sleeve as claimed in claim 1, wherein the textile material is constituted of synthetic silk.
Claim 4
Dependent Claim
56 words
Additive sealing sleeve as claimed in claim 1, wherein the textile material is folded over at both end faces of the additive sealing sleeve so as to form bands at both said end faces, and wherein the bands with the inwardly contacting textile material are connected to the additive sealing sleeve by through-extending of said seams.
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) | 1990-12-14 | 1991-06-15 | 1991-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-12-14 | 1995-06-15 | 1995-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-12-14 | 1999-06-15 | 1999-12-15 | $7700.00 | Window Closed / Lapsed |