Patent US4030427A successfully refreshed from Google Patents.
US4030427A
Expired / Lapsed
US
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Armor plate
Assignee: United States Department of the Navy
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Filing: 1974-10-30
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Granted: 1977-06-21
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Expires: 1994-10-30
Abstract
Abstract Armor plate formed of an array of tiles composed of titanium carbide partes dispersed in a matrix of tough, crack resistant titanium-nickel binary alloy. The tiles are mounted on a support layer which is an alloy of either aluminum or titanium or is a fragment resistant plastic which may be reinforced or non-reinforced.
Inventors
- 👤 David Goldstein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:23
CPC Classifications
F; F41; F41H; F41H5/00; F41H5/02; F41H5/04; F41H5/0414; F41H5/0492; Y; Y10; Y10S; Y10S428/00; Y10S428/911; Y10T; Y10T428/00; Y10T428/12; Y10T428/12014; Y10T428/12028; Y10T428/12063; Y10T428/12493; Y10T428/12771; Y10T428/12806; Y10T428/16; Y10T428/163; Y10T428/164; Y10T428/166
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
162 words
Armor plating comprising: tiles arranged in an array, comprising titanium carbide particles finely dispersed in a matrix of tough crack resistant titanium-nickel alloy, the titanium carbide particles constituting from 30 to 60 weight percent of the tile and the matrix of titanium-nickel alloy the remainder, the composition of the matrix being from about 44 to about 46 titanium and from about 54 to about 56 nickel by weight percent, provided that the tile has a Rockwell-A hardness of at least 82, and further provided that the tile be at least 11/8 inches on a side when square and have a diagonal of at least 1 inch when other than square, A support layer fastened to the underside of said tiles and being composed of a material selected from the group consisting of (a) woven roving glass reinforced plastic, (b) alloys of aluminum which have a brinell hardness between 80-130, and (c) alloys of titanium which have a Rockwell C hardness of 5-40.
Claim 2
Dependent Claim
162 words
Armor plating comprising: tiles arranged in an array, comprising titanium carbide particles finely dispersed in a matrix of tough crack resistant titanium-nickel alloy, the titanium carbide particles constituting from 30 to 60 weight percent of the tile and the matrix of titanium-nickel alloy the remainder, the composition of the matrix being from about 44 to about 46 titanium and from about 54 to about 56 nickel by weight percent, provided that the tile has a Rockwell-A hardness of at least 82, and further provided that the tile be at least 11/8 inches on a side when square and have a diagonal of at least 1 inch when other than square, A support layer fastened to the underside of said tiles and being composed of a material selected from the group consisting of (a) woven roving glass reinforced plastic, (b) alloys of aluminum which have a brinell hardness between 80-130, and (c) alloys of titanium which have a Rockwell C hardness of 5-40.
Claim 3
Dependent Claim
24 words
Armor plate according to claim 1 wherein the matrix of titanium-nickel alloy is composed of 50 atomic present titanium and 50 atomic percent nickel.
Claim 4
Dependent Claim
22 words
Armor plate according to claim 1 wherein said plastic is selected from the group consisting of polycarbonates, polyesters, phenolics, polyolefins, and expoxies.
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) | 1980-06-20 | 1980-12-20 | 1981-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-06-20 | 1984-12-20 | 1985-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-06-20 | 1988-12-20 | 1989-06-21 | $7700.00 | Window Closed / Lapsed |