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. 04, 1994
Filed:
Mar. 27, 1992
Applicant:
Inventors:
Jacob Hyner, Waterbury, CT (US);
Barbara S Lewis, Naugatuck, CT (US);
Assignee:
Whyco Chromium Company, Inc., Thomaston, CT (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B / ; C25D / ;
U.S. Cl.
CPC ...
428648 ; 205176 ; 205177 ; 411902 ; 427406 ; 428658 ; 428667 ; 428674 ; 428675 ; 428679 ; 428935 ;
Abstract
A corrosion resistant coating and process comprises the following layers applied in sequence over a ferrous metal substrate: a micro-throwing nickel-zinc alloy plating; a zinc-nickel alloy plating containing 5 to 30 weight percent nickel; a galvanically protective zinc metal plating; and either copper, nickel and chromium (or chromium substitute) plating layers or a chromate conversion layer. The coating is preferably used with a steel fastener such as a bolt or drill screw in combination with a washer.