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:
Aug. 14, 1990
Filed:
Jan. 31, 1989
Applicant:
Inventors:
Stephen P Johnson, Olean, NY (US);
Stephen P Hassler, Muskego, WI (US);
Assignee:
Cooper Industries, Inc., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08K / ; C08K / ;
U.S. Cl.
CPC ...
524437 ; 524456 ; 524597 ;
Abstract
A spider for a gassing current limiting fuse made of an asbestos free material is disclosed. The spider material produces an arc quenching gas and water upon erosion by an arc. The material includes the following proportions of ingredients: 50-80% Al.sub.2 O.sub.3.3H.sub.2 O; 8-22% Wollastonite (CaSiO.sub.3); and 10-25% melamine formaldehyde resin.