Tube closure device
OwnerAlfred Nuessleininventor
Life of this patent
Estimating the term…
Abstract
A closure device which seals against the internal circumferential surface of a tube by an O-ring seal between a plug member and the circumferential surface and the plug being held in the tube by a plurality of segmented members that are positioned around the plug and pressed against the O-ring seal and the internal circumference of the tube by means on the plug that forces the segments into contact with the O-ring seal and the internal circumference of the tube.
Claims5
A tube closure device comprising a closure assembly including a central member with an outer frusta-conical means, a plurality of arcuate segments positioned around a portion of said frusta-conical means, an O-ring seal in contact with a portion of said frusta-conical means and an end of each of said arcuate segments being in contact with said O-ring seal, adjustable means on said central member for applying force to said arcuate segments to cause said segments to be moved axially and radially on said frusta-conical means and cause said O-ring to move axially and radially and a belleville spring mounted on said central member between said adjustable means and said arcuate segments, and said adjustable means including a threaded portion on said central member and a nut threaded on said threaded portion.
Dependencies are inferred from the claim text.