Joints and connections – Branched – Three or more radiating members
Patent
1994-03-21
1996-07-16
Vo, Peter
Joints and connections
Branched
Three or more radiating members
403174, 403217, 403362, 403231, 2952502, F16D 100
Patent
active
055360971
ABSTRACT:
A modular system uses a plurality of metal pipes each having an orthogonal array of coplanar openings at one end and a threaded bore at the other end. An insert is inserted in a first pipe bore at one end next to the openings, the insert having a set of like threaded bores aligned with the openings. A coupling member external the pipe is aligned with each opening and has a bore aligned with these openings. A plurality of bolts each with a threaded end is attached to a different threaded insert bore through a coupling member and pipe opening. The bolts each have an annular groove which is aligned with a threaded bore at a second pipe other end. A set screw in the second pipe threaded bore secures the bolt by engaging the groove, locking the second pipe to the first. A foot is threaded to a lowermost vertical pipe and an end cap is used as insert for the uppermost vertical pipe. A number of second pipes aligned in a horizontal plane are connected to other joints similarly to form a three dimensional interconnected pipe structure to which panels are attached to form furniture and the like. Another embodiment includes two axially attached pipes secured by a ribbed threaded bore insert in interference fit in each pipe. A stud is threaded to each insert through an end collar of each pipe. An internal sleeve bearing between the collars is surrounded by a ring having a threaded bore for receiving a grooved bolt which is secured perpendicularly to the stud and two pipes to a third pipe.
REFERENCES:
patent: 159105 (1875-01-01), Light
patent: 2238561 (1941-04-01), Goodyear
patent: 2609638 (1952-09-01), Lindenmeyer
patent: 3980408 (1976-09-01), Jachmann
patent: 4036371 (1977-07-01), Michel
patent: 5062732 (1991-11-01), Ballerstein
Behr Omri M.
McDonald Matthew J.
Nguyen Khan V.
Vo Peter
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