Patent US4767456A successfully refreshed from Google Patents.
Patent US4613370A successfully refreshed from Google Patents.
US4613370A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hollow charge, or plate charge, lining and method of forming a lining
Assignee: Bayerische Metallwerke GmbH
•
Filing: 1984-10-03
•
Granted: 1986-09-23
•
Expires: 2004-10-03
Abstract
Abstract A hollow charge, or plate charge, lining, and a projectile charge coating, made from a composite material of tungsten and copper. Indicated are material proportions, grain sizes, and manufacturing methods.
Inventors
- 👤 Manfred Held
- 👤 Alfred Leidig
- 👤 Wilhelm A. Merl
- 👤 Gunter Stempel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 09:15
CPC Classifications
F; F24; F24B; F24B1/00; F24B1/003; F42; F42B; F42B1/00; F42B1/02; F42B1/032; B; B22; B22F; B22F2998/00
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
59 words
Coating material in shaped form for use as hollow charge, plate charge lining and projectile charge coating, comprising a composite binder material formed from particles of tungsten and copper in the presence of a binder metal and having a homogeneous structure in which the individual tungsten particles are agglutinated substantially with the copper by means of the binder metal.
Claim 2
Dependent Claim
59 words
Coating material in shaped form for use as hollow charge, plate charge lining and projectile charge coating, comprising a composite binder material formed from particles of tungsten and copper in the presence of a binder metal and having a homogeneous structure in which the individual tungsten particles are agglutinated substantially with the copper by means of the binder metal.
Claim 3
Dependent Claim
11 words
Coating of claim 1, wherein the composite material comprises 50-95% tungsten.
Claim 4
Dependent Claim
11 words
Coating of claim 1, wherein the composite material comprises 60-80% tungsten.
Claim 5
Dependent Claim
14 words
Coating of claim 1, wherein the tungsten has a particle size of 2-90 microns.
Claim 6
Dependent Claim
14 words
Coating of claim 1, wherein the tungsten has a particle size of 30-60 microns.
Claim 7
Dependent Claim
14 words
Coating of claim 1, wherein the binder metal is one of nickel and palladium.
Claim 8
Dependent Claim
82 words
Coating material in shaped form for use as hollow charge, plate charge lining and projectile charge coating according to claim 1, comprising a composite binder material formed from particles of tungsten and copper in the presence of one of nickel and palladium as binder metal and having a homogeneous structure in which the individual tungsten particles have a grain size of 2-90 microns and are agglutinated substantially with the copper by means of the binder metal, the composite material comprising 50-95% tungsten.
Claim 9
Dependent Claim
52 words
Coating material in selectively shaped form for use as hollow charge, plate charge lining and projectile charge coating, comprising a composite material formed from particles of tungsten and copper and having a homogeneous structure of selective shape for such use in which the individual tungsten particles are agglutinated substantially with the copper.
Claim 10
Dependent Claim
52 words
Coating material in selectively shaped form for use as hollow charge, plate charge lining and projectile charge coating, comprising a composite material formed from particles of tungsten and copper and having a homogeneous structure of selective shape for such use in which the individual tungsten particles are agglutinated substantially with the copper.
Claim 11
Dependent Claim
58 words
Method of forming a coating material in shaped form made of a composite binder material of tungsten and copper for use as hollow charge, plate charge lining and projectile charge coating, comprising agglutinating to a homogeneous structure of selective shape individual particles of tungsten with copper in the presence of one of nickel and palladium as binder metal.
Claim 12
Dependent Claim
58 words
Method of forming a coating material in shaped form made of a composite binder material of tungsten and copper for use as hollow charge, plate charge lining and projectile charge coating, comprising agglutinating to a homogeneous structure of selective shape individual particles of tungsten with copper in the presence of one of nickel and palladium as binder metal.
Claim 13
Dependent Claim
10 words
Method of claim 9, wherein from 50-95% tungsten is used.
Claim 14
Dependent Claim
10 words
Method of claim 9, wherein from 60-80% tungsten is used.
Claim 15
Dependent Claim
16 words
Method of claim 9, wherein the tungsten is used in a particle size of 2-90 microns.
Claim 16
Dependent Claim
16 words
Method of claim 9, wherein the tungsten is used in a particle size of 30-60 microns.
Claim 17
Dependent Claim
20 words
Method of claim 9, wherein the tungsten is treated by sintering and pressing, and thereafter combined with copper and repressed.
Claim 18
Dependent Claim
31 words
Method of claim 9, wherein the tungsten is compressed in powder form and copper powder is added with the binder metal at a temperature greater than the melting point of copper.
Claim 19
Dependent Claim
22 words
Method of claim 9, wherein pure tungsten is pressed with the binder metal and copper is added and the copper is repressed.
Claim 20
Dependent Claim
83 words
Method of forming a coating material in shaped form made of a composite binder material of tungsten and copper for use as hollow charge, plate charge lining and projectile charge coating according to claim 9, comprising agglutinating to a homogeneous structure of selective shape individual particles of tungsten in a particle size of 2-90 microns with copper in the presence of one of nickel and palladium as binder metal and such that the proportion of tungsten present comprises 50-95% of the composite material.
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) | 1989-09-22 | 1990-03-24 | 1990-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-09-22 | 1994-03-24 | 1994-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-09-22 | 1998-03-24 | 1998-09-23 | $7700.00 | Window Closed / Lapsed |