Electricity: measuring and testing – Magnetic – Displacement
Reexamination Certificate
2007-08-07
2007-08-07
Lefkowitz, Edward (Department: 2862)
Electricity: measuring and testing
Magnetic
Displacement
C324S207250
Reexamination Certificate
active
10622024
ABSTRACT:
A scale that includes a first base body having a first non-magnetizable support and a first set of magnetic elements that are arranged laterally next to the first non-magnetizable support, are magnetized in a single identical direction and are arranged in a measuring direction. A second base body having a second non-magnetizable support and a second set of magnetic elements that are arranged laterally next to the second non-magnetizable support, are magnetized in the single identical direction and area arranged in the measuring direction. The first base body and the second base body are put together such that in the measuring direction alternating ones of the first and second sets of magnetic elements are arranged and the first and second sets of magnetic elements have different magnetic orientations with respect to each other.
REFERENCES:
patent: 4274053 (1981-06-01), Ito et al.
patent: 5734266 (1998-03-01), Spies
patent: 6717401 (2004-04-01), Schwabe
patent: 0 715 151 (1997-04-01), None
patent: 06103552 (1994-04-01), None
Page 720 of The American Heritage College Dictionary, 4thEdition.
Schroter Andreas
Schwabe Michael
Brinks Hofer Gilson & Lione
Dr. Johannes Heidenhain GmbH
Schindler David M.
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