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.:
Date of Patent:
Jan. 19, 1999
Filed:
Feb. 25, 1997
Applicant:
Inventors:
Shuhei Adachi, Iwata, JP;
Junichi Inami, Iwata, JP;
Assignee:
Yamaha Hatsudoki Kabushiki Kaisha, Iwata, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C23C / ; F16K / ;
U.S. Cl.
CPC ...
1231888 ;
Abstract
An improved method of metallurgically bonding two dissimilar materials to form, for example, a valve seat for an internal combustion engine. The bonding process is coupled by pressing pressure and the application of heat. The process is controlled so that the temperature of the lower melting point material never exceeds its solidus temperature but is close to it. Plastic deformation occurs in the base material but the base material is not liquefied.