RICHARD MCDONALD
Engineering in Scituate, MA
License number
Massachusetts 12973
Issued Date
Jun 23, 1960
Expiration Date
Jun 30, 2002
Type
Metallurgical Engineer
Address
Address
Scituate, MA 02066
Personal information
See more information about RICHARD MCDONALD at radaris.comName
Address
Phone
487 E 7Th St, Boston, MA 02127
49 Willow St, Waltham, MA 02453
564 E 6Th St #1, Boston, MA 02127
564 E 6Th St, Boston, MA 02127
57 Hubbardston Rd, Barre, MA 01005
Professional information
See more information about RICHARD MCDONALD at trustoria.com
Process For Producing Corrosion Resistant Carbon Steel Razor Blades And Products Made Thereby
Process For Producing Corrosion Resistant Carbon Steel Razor Blades And Products Made Thereby
US Patent:
4139942, Feb 20, 1979
Filed:
Dec 16, 1977
Appl. No.:
5/861275
Inventors:
Suri A. Sastri - Stow MA
Thomas G. Decker - Wellesley Hills MA
Richard McDonald - Scituate MA
Thomas G. Decker - Wellesley Hills MA
Richard McDonald - Scituate MA
Assignee:
The Gillette Company - Boston MA
International Classification:
B26B 2154, B05D 500
US Classification:
3034654
Abstract:
A process for producing long-lasting corrosion resistant carbon steel razor blades and the products made thereby. The process comprises first coating the cutting edges of the blades with chromium; and then immersing the blades in an electroless coating bath to provide a coating of a nickel-phosphorous, nickel- copper- phosphorous, cobalt-phosphorous or cobalt-nickel-phosphorous coating material on at least the bodies of the blades, the chromium coating preventing beading up of the coating material on the cutting edges of the blades to an extent that would require resharpening of the cutting edges. The blades may thereafter be overcoated with a carboxy-substituted silicone oil composition preferably comprising therein a long chain aliphatic acid, alcohol, amide and mixtures thereof.