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US 4,050,830 AGranted
Double-sigmoid connector
AssigneeChemetron Corporation
InventorsRobert Charles Paulin, Ronald Joseph Billings
Life of this patent
Estimating the term…
Abstract
A double-sigmoid connector is used to interconnect structural members in a trusswork and comprises a pair of arcuate elbows joined to each other at their outer peripheral midsections. Coaxial outlets are formed in the elbows at their inner peripheral midsections.
Claims6
A double sigmoid structural connector comprising:
- a pair of arcuate pipe elbows having coplanar, arcuate centerlines, one of said pair having an elongated opening in its outer periphery and the other of said pair having a portion of its outer periphery extending into said opening and substantially closing same, said one elbow being rigidly joined to said other elbow around said opening.
Dependencies are inferred from the claim text.