Hawser chain seal assembly

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


Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0


24116R, 114180, 114200, 138 93, 277188A, 277235R, B63B 2118, F16J 1500




A hawser chain assembly and method for installation of its sealing element is disclosed. The assembly includes a housing adapted for connection in series with a hawser pipe of a marine vessel such as a semi-submersible drilling rig. The housing may be moved to an open position for installation or replacement of the sealing element, and a closed position to longitudinally surround and secure the sealing element. The sealing element has at least two semi-cylindrical elastomeric parts, each of which is adapted for placement partially about the hawser chain when the housing is in the open position. Each semi-cylindrical part has at least one inflatable bladder. A manifold is provided by which fluid pressure may be introduced to the bladders of the sealing element causing them to expand. The sealing element is restricted on its outer diameter by the closed housing causing the elastomeric material to move inwardly forming a sealing engagement with the chain.

patent: 293610 (1884-02-01), Winter
patent: 672475 (1901-04-01), Cavallaro
patent: 1861726 (1932-06-01), Trout
patent: 2652018 (1953-09-01), Griffith
patent: 2716575 (1955-08-01), Vickers
patent: 2871035 (1959-01-01), Kaiser
patent: 2994291 (1961-08-01), Angell
patent: 3001804 (1961-09-01), Tomlinson et al.
patent: 3038022 (1962-06-01), Scott
patent: 3039795 (1962-06-01), Reuter
patent: 3399548 (1968-09-01), Burns
patent: 3661112 (1972-05-01), Angell
patent: 3967572 (1976-07-01), Lea
patent: 4310139 (1982-01-01), Williams, III et al.
patent: 4322054 (1982-03-01), Campbell
patent: 4330143 (1982-05-01), Reneau
patent: 4345735 (1982-08-01), Regan
patent: 4372528 (1983-02-01), Raftis
patent: 4567840 (1986-02-01), Arlt et al.


Say what you really think

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


Hawser chain seal assembly does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Hawser chain seal assembly, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hawser chain seal assembly will most certainly appreciate the feedback.

Rate now


Profile ID: LFUS-PAI-O-1423934

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