Enhanced security catch assembly for retaining a handle on a...

Details Enhanced security catch assembly for retaining a handle on a... Enhanced security catch assembly for retaining a handle on a...

2005-06-21

2005-06-21

Stodola, Daniel P. (Department: 3676)

Closure fasteners

Knob-attaching devices

C292S350000, C070S224000, C411S403000, C411S404000

Reexamination Certificate

active

06908126

ABSTRACT:
A catch assembly that locks a handle onto the spindle of a lock mechanism has enhanced resistance to attempts to remove the handle by forcibly driving the catch assembly inwards. The catch assembly includes a base mounted on the spindle having a threaded opening that receives a corresponding threaded retaining pin. The pin is moved axially by rotating it. When the pin is rotated to an outward position it engages the handle and the threads act to prevent the pin from being forcibly driven inward by transferring axially applied forces to the base. In the preferred design, the head of the retaining pin is softened and specially shaped to limit the torque that can be applied.

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Sargent Manufacturing Company,8LineParts List. pp 8.1 and 8.2.

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