Self-locking bolt
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 21, 2005
Grant Date -
N/A
app pub date -
Jul 12, 2000
filing date -
Jul 12, 1999
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A self-locking bolt has a head with a bearing surface and a threaded part extending from the bearing surface and provided with an external thread of a pitch P for fastening to a first member when the head and threaded part are rotated in a fastening direction. There are n locking projections or recesses at equal angular intervals on the bearing surface, heights or depths of the locking projections or recesses from the bearing surface increasing or decrease gradually in a direction opposite the fastening direction from maximums to minimums with edges of the locking projections or recesses at junctions of the bearing surface and end walls of the locking projections or recesses at the maximums. The maximum height of the edge of the locking projections from the bearing surface of the head is nearly equal to and less than P/n. A second member that is between the bearing surface and the first member when the head and threaded part are rotated in the fastening direction bulges into the locking recesses.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully