Metal working – Method of mechanical manufacture – Assembling or joining
Patent
1989-06-01
1991-05-14
Combs, E. Michael
Metal working
Method of mechanical manufacture
Assembling or joining
10 86A, 10155R, B23P 1906, B21D 3900, B21D 5324
Patent
active
050144111
ABSTRACT:
A locking nut is provided by forming a straight cylindrical bore through a body, forming a tap with uniform teeth, the tips of which taper at a shallow angle toward one end of the tap, and tapping said bore with said tap so as to produce a thread having a pitch diameter and a root diameter which taper from one of the thread to the other, and a crest which is of constant diameter and increasingly truncated from one end to the other, said thread at said one end having substantially a full profile.
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Combs E. Michael
Deutsch Fastener Corporation
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