Barb and method of making same
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 18, 1980
Grant Date -
N/A
app pub date -
Jul 25, 1978
filing date -
Jul 29, 1977
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A barb for engagement with a body 13 of deformable material such as nylon has a sharp edge 28 at the top of a relatively steep face 29 forming one side of a trough 32. A ledge or rim 38 projects from the face 29, about halfway up the face 29, and provides an abutment which restricts the extent to which the deformable material can enter the trough. This improves the resistance of the barb against being pulled out of the trough. This form of barb is particularly applicable to fasteners of the type in which a threadless bolt having barbs is embedded in a shell carrying a nylon sleeve. The barb is manufactured by a rolling process in which two dies are successively applied to a cylindrical blank, the first die to form the trough 32, and the second die to form the ledge 38.
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