Threaded – headed fastener – or washer making: process and apparat – Process – Making internally threaded fastener – e.g. – nut
Reexamination Certificate
2008-05-20
2008-05-20
Tolan, Ed (Department: 3725)
Threaded, headed fastener, or washer making: process and apparat
Process
Making internally threaded fastener, e.g., nut
C470S019000, C470S020000
Reexamination Certificate
active
07374495
ABSTRACT:
The locking nut and bolt system includes an elongated locking unit, mounted in a nut and operative with a specially configured groove bolt. The locking unit includes a plurality of at least three tines, asymmetrically located, which protrude tangentially and generally radially inward. The tines are radially asymmetrically disposed such that when a respective tine latches into a corresponding groove, asynchronous locking operation is achieved. When the tine is engaged in the groove, counter-rotational movement (loosening) is prohibited. In another embodiment, the locking unit has different sized edge cut-outs prohibiting the locking insert from rotating within the nut. The locking unit may also include a longitudinal split and a key and a keyway. A manufacturing process is also disclosed.
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Kain, Jr. Robert C
Permanent Technologies, LLC
Tolan Ed
LandOfFree
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