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. 20, 1999
Filed:
Dec. 19, 1996
Applicant:
Inventors:
Roger C Finn, Nepean, CA;
Raymond K Orr, Kanata, CA;
Assignee:
Northern Telecom Limited, Montreal, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01F / ;
U.S. Cl.
CPC ...
156276 ; 1563041 ; 336196 ;
Abstract
A method of providing a predetermined set distance apart between two members in article manufacture. This involves clamping the members together with a mixture of an adhesive and glass microspheres between opposing surfaces of the members, the microspheres being of specific grid size. The largest diameter microspheres are gripped between the opposing surfaces thereby determining the distance between the members. The invention is particularly useful for precise location apart between members with small gaps therebetween, e.g. less than 3 mil. It is useful particularly for magnetic device cores of small dimensions.