Radially expandable locking device for a pipe seal

Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

277128, 277147, 277189, 24 20CW, F16J 1500, B65D 6302

Patent

active

056428910

ABSTRACT:
A radially expandable device for exerting an outward expansion of a seal to establish a pipe joint including a band having inner and outer ends wrapped to overlap. A pivot link hinged to the inner band end has serrations which engage locking serrations on the inside of the outer band end and swings out as the band inner end is forced out with a hydraulic jack to an expanded locked condition, in which the pivot link extends circumferentially. The radial expansion is accomplished with lower friction as the frictional resistance created by contact with seal is reduced, and simplified installation equipment may be used.

REFERENCES:
patent: 3958313 (1976-05-01), Rossborough
patent: 4191390 (1980-03-01), Wolf et al.
patent: 4215868 (1980-08-01), Skinner et al.
patent: 4478437 (1984-10-01), Skinner
patent: 4711455 (1987-12-01), Ditcher et al.
patent: 4903970 (1990-02-01), Ditcher et al.
patent: 5029907 (1991-07-01), Gundy
patent: 5054794 (1991-10-01), Westhoff et al.
patent: 5150927 (1992-09-01), Skinner
"Press-Boot" by: Press-Seal Gasket Corporation (no date available).

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Radially expandable locking device for a pipe seal does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Radially expandable locking device for a pipe seal, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Radially expandable locking device for a pipe seal will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-590521

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.