LAWRENCE P KAUFMAN
Engineering in Brookline, MA
License number
Massachusetts 12800
Issued Date
May 26, 1960
Expiration Date
Jun 30, 2012
Type
Metallurgical Engineer
Address
Address
Brookline, MA 02445
Professional information
Fabrication Of Nonsparking Titanium Diboride Mining Tools
US Patent:
3954419, May 4, 1976
Filed:
Jun 19, 1975
Appl. No.:
5/588548
Inventors:
Lawrence P. Kaufman - Brookline MA
Richard L. Pober - Newtonville MA
Richard L. Pober - Newtonville MA
Assignee:
The United States of America as represented by the Secretary of the
Interior - Washington DC
Interior - Washington DC
International Classification:
C22C 2900, C22C 105
US Classification:
291825
Abstract:
Titanium diboride is composited with about 11 to 13 per cent by weight of copper and about 2 to 4 per cent by weight of nickel, preferably by mixing the constituents in powdered form, heating the mixture to about 2000. degree. F, and then hot pressing at a pressure of about 3000 psi and a temperature of about 2650. degree. F. The titanium diboride-copper-nickel composite composition possesses execellent strength and non-sparking properties useful in the fabrication of mining tools and implements.