Communications: electrical – Digital comparator systems
Patent
1993-10-21
1995-02-07
Callahan, Timothy P.
Communications: electrical
Digital comparator systems
70404, 70413, 341 21, G05B 100, G06F 702
Patent
active
053878957
ABSTRACT:
A control apparatus which includes apparatus for storing a first digital code, apparatus for storing a second digital code, and apparatus for comparing the first and second digital codes, the apparatus for comparing including first and second generally dish shaped members that are dimensioned and configured for nesting relationship. In some forms of the invention the dish shaped members are each rotationally symmetrical. The first and second dish shaped members may each include a plurality of steps on the face thereof. At least one of the first and second dish shaped members includes a plurality of steps on the face thereof. The other of said first and second dish shaped members may includes a plurality of steps on the face thereof. The apparatus will often include means for conducting disposed respectively in contact with the conductive generally planar members. Some of the generally planar members may have tab portions for connection thereto. The other of the dish shaped members may include a plurality of elongated contacts that are resiliently mounted. The elongated contacts may have an axial portion thereof disposed for engagement with one of the generally planar members. In some forms of the invention each of the axial portions has depending axial portions. One form of the invention includes elongated conductors that have axial portions contacting the planar members. In one form of the invention the apparatus includes apparatus for storing a first digital code; apparatus for storing a second digital code; and apparatus for comparing the first and second digital codes. The apparatus for comparing includes first and second members in which the means for storing a first digital code and the means for storing a second digital code are respectively disposed in first and second members and the second member receives all electrical power for the operation thereof from the first member.
REFERENCES:
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patent: 4838060 (1989-06-01), Hutzenlaub
patent: 5006842 (1991-04-01), Tobol
patent: 5091771 (1992-02-01), Bolan et al.
patent: 5281945 (1994-01-01), Keppner et al.
Keppner Louis A.
Lecours Ramon L.
Callahan Timothy P.
Lam T. T.
MagiCorp Inc.
Smith Robert S.
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