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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 4724000 B1

PDFFull Text
Date of Patent:
Feb. 09, 1988

Filed:

Oct. 29, 1986

Powdered metal valve seat insert

Applicant:
Inventors:

Jay M Larson, Marshall, MI (US);

Sundaram L Narasimhan, Marshall, MI (US);

David L Bonesteel, Richland, MI (US);

John N Gilmer, Farmington Hills, MI (US);

Assignee:

Eaton Corporation, Cleveland, OH (US);

Attorneys:

Rowe; D. A.

Chrow; A. E.

Primary Examiner:

Stephen J Lechert, Jr

Int. Cl.
CPC ...
C22C / ;
U.S. Cl.
CPC ...
75236 ; 75238 ; 75241 ; 75243 ; 75244 ; 75246 ; 419 11 ; 419 14 ; 419 15 ; 419 13 ;
Abstract

Wear resistant articles, especially valve seat inserts for internal combustion engines, are produced as sintered metal compacts comprising interspersed microzones of prealloyed austenitic stainless steel and softer ferrous metal, the microzones of austenitic stainless steel containing carbides and carbonitrides. The sintered compacts can be made by forming a green compact from prealloyed austenitic stainless steel powder atomizate blended with softer powdered ferrous metal component and powdered carbon, and sintering the green compact.

Find Patent Forward Citations

Larson, Jay. (1988). Powdered metal valve seat insert (U.S. Patent No. 4724000). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4724000

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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