Mounting sleeve for nozzle heater

Details Mounting sleeve for nozzle heater Mounting sleeve for nozzle heater

2005-03-29

2005-03-29

Heitbrink, Tim (Department: 1722)

Plastic article or earthenware shaping or treating: apparatus

Female mold and charger to supply fluent stock under...

With means to heat or cool

C264S328150

Reexamination Certificate

active

06872068

ABSTRACT:
A mounting sleeve fits around a nozzle extending along an axis and a heating coil wrapped around the nozzle and having an outer surface generally centered on the axis. The a mounting sleeve has a sleeve-shaped bimetal body having inner and outer layers and a pair of angularly juxtaposed edges. The body is shaped and dimensioned to fit around the coil with the inner layer engaging the coil outer surface. The inner layer has a smaller coefficient of thermal expansion than the outer layer so that when heated the body contracts radially inward. Interengaging formations at the edges generally prevent radial outward expansion of the body when interengaged.

REFERENCES:
patent: 4635851 (1987-01-01), Zecman
patent: 5360333 (1994-11-01), Schmidt
patent: 5411392 (1995-05-01), Von Buren
patent: 5558888 (1996-09-01), Beck
patent: 6302680 (2001-10-01), Gellert et al.
patent: 37 36 612 (1989-05-01), None

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