Blind bolt installation tool
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 4, 2007
Grant Date -
Dec 22, 2005
app pub date -
Jun 7, 2005
filing date -
Jun 22, 2004
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A pulling head includes a sleeve which threadably engages a sleeve adapter. A collet is threadably engaged with a drawbar adapter, and the collet and drawbar adapter are disposed and slidable in the sleeve. A set of jaws is disposed in the collet, and a jaw follower is disposed in the collet and contacts the jaws. A spring retainer is disposed in the collet, and engages two springs. Specifically, a first spring is disposed between the drawbar adapter and the spring retainer, and a second spring is disposed between the spring retainer and the jaw follower. The first spring has a higher rating than does the second spring. While the first spring is configured to accommodate inertia loading, the second spring is configured to urge the jaws closed yet be relatively easily overcome by the insertion of mandrels of different diameters.
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