Magnetic bridge devices
CA 1296061 C · Owner: Zinke, Otto Henry · Inventors: Zinke, Otto Henry
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Various devices are constructed with gap-modified magnetic bridge circuits. In a magnetic bridge device for evaluation of samples, a magnetic bridge circuit (10 20, 30, 40, 40; 50) as at least four arms (P1-P2; A12-B12 A13-B13, A14-B14, A15-B15), a driving leg (A11) and a sensing leg (B11), one of the arms (A15-B15) being utilized for evaluating a sample (S), pole pieces (P1-P2) of a sample-evaluating arm having end faces defining between them a sample-evaluating gap (G15). An electrically conductive gap insert (C) produces an enhanced fringing flux exteriorly of it. The sample (S) is placed in juxtaposition to the sample-evaluating gap for affecting the fringing flux. A-driving circuit …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted February 18, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 18, 2009.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.