Pipe joints or couplings – Variable length
Patent
1989-11-30
1991-03-12
Nicholson, Eric K.
Pipe joints or couplings
Variable length
285373, 285303, F16L 2712
Patent
active
049987569
ABSTRACT:
An adjustable connection apparatus for joining tubular members including a first tubular member with a central bore, a counterbore on one end thereof, a flange on the other end thereof and external fine pitch grooves and ridges, a second tubular member with a central bore, a flange on one end thereof, a first reduced external diameter portion on the opposite end for insertion into said counterbore of said first tubular member, a second reduced diameter portion on the end of said first reduced diameter portion with external threads on the end of said second reduced diameter portion and external fin pitch grooves and ridges, clamping elements having internal fine pitch grooves and ridges for gripping engagement with the external grooves and ridges of said tubular members and means for securing the clamping elements together in gripping engagement with the tubular members to secure them into a joint having a preselected length and sealing means between the tubular members.
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Cooper Industries Inc.
Nicholson Eric K.
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