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:
Apr. 12, 1977
Filed:
Apr. 09, 1975
Applicant:
Inventors:
Joseph Winter, New Haven, CT (US);
Richard Lanam, Hamden, CT (US);
Douglas L Graham, Ballwin, MO (US);
Assignee:
Swiss Aluminium Ltd., Chippis, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C22F / ;
U.S. Cl.
CPC ...
148 / ; 2415 / ; 2426 / ; 75141 ; 75142 ; 75143 ; 140 82 ; 148 32 ;
Abstract
A clip exhibiting improved corrosion resistance and reduced weight is processed by a drawing operation which is preferably conducted without interannealing treatments and which may employ a variation of drawing speeds. The clip of the present invention is prepared from an aluminum base alloy comprising from about 0.05-6.0% silicon, about 0.10-0.8% iron, about 0.02-0.3% copper, up to 1.0% manganese and up to 7.0% magnesium. The resulting clips possess comparable tensile properties to conventional tin and zinc-coated steel clips with an economy of processing.