Multiple pitch threaded fastener apparatus
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Oct 16, 2001
Grant Date -
N/A
app pub date -
Dec 17, 1999
filing date -
Dec 17, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A fastener apparatus having a bolt member with a fast lead threaded portion, a barrel member with a fine lead threaded portion, a collar member interposed between the bolt and the barrel and including both fast lead and fine lead threads to mesh with the respective threads on the bolt and the barrel, and an actuator for coupling two of the three members together so that in one instance the fastener is drawn rapidly on fast lead threads through a significant distance and in the second instance the fastener is drawn together on fine lead threads providing additional mechanical advantage.
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Cited Art Landscape
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