Wrapped temperature sensing assembly
AssigneeLexmark International, Inc.
InventorsReginald Keith Bethel, Robert Leonard Burdick, Charles Jerome Cheek, Larry Steven Foster, Paul Douglas Horrall, Krikor Yosmali
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Abstract
The temperature of a heated roller (1) is monitored by a heat sensor (19) which rests on metal rectangle (25) on polyimide strip (5). The top end of the strip is attached directly to the frame (3). the bottom end of the strip has a hole (7), which receives an arm (9a) of pivoted member (9). A coil spring (13) pivots member 9 to cause arm 9a to pull the strip into contact with the heated roller. Because of the wide contact and low force between the strip and the roller, wear is reduced and smooth operation is realized.
Claims5
An assembly to sense the surface temperature of a member having an extended, curved surface comprising
- a flexible, heat resistant-strip having a first end at one end of said strip and a second end at the opposite end of said strip,
- said strip being mounted at said first end and at said second end to wrap around and contact at least part of said curved surface, at least one of said first end and said second end being mounted under yieldable pressure, and
- a temperature sensor comprising a solid, heat sensing body and at least one resilient wire extending from said heat sensing body and having a bent portion,
- said at least one resilient wire being mounted on said strip to position said heat sensing body in contact with said strip with said bent portion applying pressure on said heat sensing body toward said strip.
Dependencies are inferred from the claim text.