Hard composite with deformable constituent and method of applying to earth-engaging tool

US8945720B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8945720-B2
Application numberUS-53662409-A
CountryUS
Kind codeB2
Filing dateAug 6, 2009
Priority dateAug 6, 2009
Publication dateFeb 3, 2015
Grant dateFeb 3, 2015

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

A hardmetal composite used as wear-resistant surfaces and inlays in earth-engaging equipment includes more than one hardphase. At least one hardphase has a high average particle size, for example, from 100 μm to 2000 μm. The hardphases vary in terms of particle size, hardness, and binder content, and at least one hardphase includes a particulate constituent capable of plastic deformation that comprises at least 1% residual porosity.

First claim

Opening claim text (preview).

What is claimed is: 1. A hardmetal composite, comprising: a solid state forged product of: a primary hardphase; at least one secondary hardphase, at least one of the primary hardphase and the at least one secondary hardphase having a particulate constituent having a residual porosity and which exhibits plastic deformation under pressure, and having at least 15% residual porosity; and a steel matrix comprised of iron powder; wherein the particulate constituent of the at leas…

Assignees

Inventors

Classifications

  • Operations & Transport · mapped topic

  • Operations & Transport · mapped topic

  • C22C19/07Primary

    Chemistry & Metallurgy · mapped topic

  • Chemistry & Metallurgy · mapped topic

  • E21B10/46Primary

    Fixed Constructions · mapped topic

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What does patent US8945720B2 cover?
A hardmetal composite used as wear-resistant surfaces and inlays in earth-engaging equipment includes more than one hardphase. At least one hardphase has a high average particle size, for example, from 100 μm to 2000 μm. The hardphases vary in terms of particle size, hardness, and binder content, and at least one hardphase includes a particulate constituent capable of plastic deformation that c…
Who is the assignee on this patent?
Sreshta Harold, Drake Eric F, Caraway Douglas B, and 1 more
What technology area does this patent fall under?
Primary CPC classification C22C19/07. Mapped technology areas include Chemistry & Metallurgy.
When was this patent published?
Publication date Tue Feb 03 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).