US5328776A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Abrasion and impact resistant composite castings and wear resistant surface provided therewith
Assignee: WHITE EAGLE INTERNATIONAL TECHNOLOGIES LP
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Filing: 1993-01-04
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Granted: 1994-07-12
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Expires: 2013-01-04
Abstract
Abstract A composite casting for wear resistant surface has a base composed of a ductile material and a plurality of wear resistant elements embedded in the base, wherein the wear resistant elements have rounded sides and are arranged in the base so that they are flush with a surface of the base.
Inventors
- 👤 Michail Garber
- 👤 Boris Amusin
- 👤 Kunsoo Kim
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:54
CPC Classifications
B; B02; B02C; B02C1/00; B02C1/02; B02C1/10; B02C17/00; B02C17/18; B02C17/22; B02C4/00; B02C4/28; B02C4/30; B02C4/305; E; E21; E21B; E21B10/00; E21B10/46; B02C2210/00; B02C2210/02; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12486
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
97 words
A composite casting for wear resistant surface comprising a base composed of a ductile material; and a plurality of wear resistant elements embedded in said base, said wear resistant elements having rounded sides and are arranged in said base so that they are flush with a surface of said base, said wear resistant elements including a central wear resistant element which has a thickening provided in its central region and also in its end regions, said central wear resistant element having a longitudinal axis extending in direction of movement of an abrasive material along the composite casting.
Claim 2
Dependent Claim
97 words
A composite casting for wear resistant surface comprising a base composed of a ductile material; and a plurality of wear resistant elements embedded in said base, said wear resistant elements having rounded sides and are arranged in said base so that they are flush with a surface of said base, said wear resistant elements including a central wear resistant element which has a thickening provided in its central region and also in its end regions, said central wear resistant element having a longitudinal axis extending in direction of movement of an abrasive material along the composite casting.
Claim 3
Dependent Claim
83 words
A composite casting for wear resistant surface, comprising a base composed of a ductile material; and a plurality of substantially curved elongated wear resistant elements embedded in said base, said elongated wear resistant elements being spaced from one another in a transverse direction by distances and being interrupted in a longitudinal direction by transverse cutouts so that the ductile material of said base fills said distances between said elongated wear resistant elements and also fills said cuts in said elongated wear resistant elements.
Claim 4
Dependent Claim
83 words
A composite casting for wear resistant surface, comprising a base composed of a ductile material; and a plurality of substantially curved elongated wear resistant elements embedded in said base, said elongated wear resistant elements being spaced from one another in a transverse direction by distances and being interrupted in a longitudinal direction by transverse cutouts so that the ductile material of said base fills said distances between said elongated wear resistant elements and also fills said cuts in said elongated wear resistant elements.
Claim 5
Dependent Claim
27 words
A composite casting as defined in claim 2, wherein said distances between said wear resistant elements are not greater than a width of said wear resistant elements.
Claim 6
Dependent Claim
50 words
A composite casting as defined in claim 2, wherein said transverse cutout of a preceding one of said wear resistant elements is followed by an uncut portion in a subsequent one of said wear resistant elements and said uncut portion is a plurality of times wider than said transverse cutout.
Claim 7
Dependent Claim
39 words
A composite casting as defined in claim 2, wherein at least some of said wear resistant elements are integral and have a central region which has a greater cross-section than an end region of said some wear resistant elements.
Claim 8
Dependent Claim
31 words
A composite casting as defined in claim 1, wherein some of said wear resistant elements are formed as a strip which is gradually bent in a plane of the composite casting.
Claim 9
Dependent Claim
29 words
A composite casting as defined in claim 2, wherein at least some of said wear resistant elements are formed as a parallelogram in a plane of the composite casting.
Claim 10
Dependent Claim
37 words
A composite casting as defined in claim 2, wherein said cutouts of said wear resistant elements are spaced from one another by a distance which is a multiple of a transverse size of said wear resistant element.
Claim 11
Dependent Claim
29 words
A composite casting as defined in claim 2, wherein said base has corner regions, said wear resistant elements include at least some wear resistant elements arranged in said corners.
Claim 12
Dependent Claim
28 words
A composite casting as defined in claim 2, wherein said wear resistant elements are arranged so that their longitudinal axes intersect with one another forming a Chevron shape.
Claim 13
Dependent Claim
30 words
A composite casting as defined in claim 2, wherein said wear resistant elements are arranged in zigzag rows extending at both sides of a central longitudinal axis of said base.
Claim 14
Dependent Claim
50 words
A composite casting as defined in claim 2, wherein said wear resistant elements include a central wear resistant element extending in direction of the central longitudinal axis of said base, and at least two rows of other wear resistant elements arranged at both sides of said central wear resistant element.
Claim 15
Dependent Claim
30 words
A composite casting as defined in claim 2, wherein said wear resistant elements are spaced from one another by distances, said base filling said distances between said wear resistant elements.
Claim 16
Dependent Claim
22 words
A composite casting as defined in claim 2, wherein said wear resistant elements are composed of wear resistant and corrosion resistant material.
Claim 17
Dependent Claim
37 words
A composite casting as defined in claim 2, wherein said wear resistant elements have a rail-shaped cross-section with a rounded head-shaped upper portion, a lower support portion, and an intermediate narrow neck-shaped portion to withstand strong impact.
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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) | 1997-07-11 | 1998-01-10 | 1998-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-07-11 | 2002-01-10 | 2002-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-07-11 | 2006-01-10 | 2006-07-12 | $7700.00 | Window Closed / Lapsed |