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US 5,372,447 AGranted
Double-bar connecting device
OwnerMing-Dar Chunginventor
Life of this patent
Estimating the term…
Abstract
This invention provides a double-bar connecting device which in one embodiment includes a cubic connector housing having three pairs of mutually orthogonal opposing surfaces. Each surface has two holes passing through to allow elongated bars having the same cross-section as the holes to snugly and tightly extend through the connector housing. Bolts may be provided to further secure the elongated bars to the connector housing. By positioning a number of such connector devices together with the elongated bars extending between connector housings, a three-dimensional frame structure is provided.
Claims13
A double-bar connecting device comprising:
- (a) a connector housing having three pairs of opposingly displaced and parallel surfaces, each of said pairs of surfaces being mutually orthogonal to the other of said pairs of surfaces, each of said pairs of surfaces having a pair of holes formed therethrough, said pair of holes formed through said displaced and parallel surfaces of each of said pairs of surfaces being coincidently aligned and of predetermined contour, said holes of each of said pairs of holes displaced from each other by a predetermined distance;
- and,
- (b) three pairs of elongated bars for insert into and through said connector housing through respective pairs of holes formed through said displaced and parallel surfaces, said elongated bars having the same contour as said predetermined hole contours and of a cross-sectional dimension size less than or equal to said predetermined distance between said holes of each of said pair of holes, each of said pairs of elongated bars being sandwiched between another pair of said elongated bars within said connector housing.
Dependencies are inferred from the claim text.