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US 4,353,203 AGranted
Quick-coupling link
AssigneeSea Trec Enterprises, Ltd.
InventorJohn G. D. Lotoski
Life of this patent
Estimating the term…
Abstract
A quick-coupling link to be utilized in conjunction with an identical link has a slot in one of the longitudinal side portions of the link. A tab extends from the opposite longitudinal side portion to adjacent the slot. The tab spans the width of the slot. When a pair of identical links are joined, the tabs prevent the links from accidentally being uncoupled as the slots cannot be brought into disengaging alignment without bending the flexible tab away from the entry to the slot.
Claims4
A quick-coupling link comprising:
- a link having longitudinal side portions joined by curved end portions, one of said side portions having a slot in the central region thereof, said slot having a thickness less than the diameter of said link, said slot being positioned generally along a diameter of said link and extending from the inner portion of said link to the outer portion of said link, said slot being joined to the upper and lower surfaces of the link by outwardly diverging V-shaped notches that extend transversely from said slot, and
- a flexible tab joined to the other of said longitudinal side portions and extending across the central portion of said link, said tab having a width greater than the width of said slot, said tab terminating adjacent said one longitudinal side portion and being separated from said one side portion by a distance less than a diameter of said link.
Dependencies are inferred from the claim text.