Heat responsive door latch handle

Details Heat responsive door latch handle Heat responsive door latch handle

1982-06-04

1984-06-12

Smith, Gary L.

Closure fasteners

Knob-attaching devices

49 1, 292169, 292347, 292350, 292357, 292359, 292DIG66, E05C 116, E05B 300, E05F 1520

Patent

active

044537530

ABSTRACT:
A door latch mechanism for controllably securing a door, the latch mechanism of the type having a spindle and operating handles, comprises a fusible connecting member rigidly attaching the handle and spindle at room temperature, the fusible connecting member melting at elevated temperatures to permit relative rotation of the handle and spindle. The handle is mounted using a connecting member which is attached to the latch trim using a screwless connection. This is particularly applicable to latches using lever handles in that a positive positioning mechanism holds the handles at their selected positions, regardless of wear and age.

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