End cap contact assembly for a heater roller
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United States of America Patent
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-
Nov 23, 1999
Grant Date -
N/A
app pub date -
Mar 3, 1998
filing date -
Mar 3, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An electrical contact assembly for a roller (10) having at least one single-bevel end portion (13) has a first electrical contact formed by a thermally sprayed band (29) of a nickel alloy, a second electrical contact (30) formed by an annular contact structure (57, 37, 38, 30) assembled to the roller (10) and a bridging contact formed by an extension coil spring (33) which extends around the tapered end (24) of the roller (10) in a location where it will make bridging contact between the first electrical contact (29) and the second electrical contact (30) and provide spring pressure to maintain such contact.
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