B - Operations – Transporting – 23 – P
Patent
B - Operations, Transporting
23
P
277/56, 285/57,
B23P 19/00 (2006.01) B25B 27/02 (2006.01) B25B 27/28 (2006.01) F16J 15/10 (2006.01) F16L 5/02 (2006.01) F16L 21/08 (2006.01) F16L 41/08 (2006.01)
Patent
CA 1333624
A resilient gasket is provided herein having an outer flange positioned within a manhole opening and held by a compression band. The gasket has a central opening with an enlarged beaded periphery to encircle a pipe. A tapered intermediate section is joined to the outer flange and the beaded periphery. The intermediate section folds after insertion and clamps in an opening to form diagonally-aligned annular portions defining a V-shaped yieldable gasket to maintain a watertight seal between opening and pipe, even when misaligned. A strap encircling the gasket next to the beaded periphery enhances the watertight seal between gasket and pipe. The clamping band has free ends which cooperate with projections of a piston cylinder assembly. The clamping band is formed of material impervious to the surrounding environment. The expansion assembly includes the piston cylinder assembly which cooperates with an hydraulic jack and is positioned with its projections against the free ends of the clamping band to expand the clamping band into a locked position against the gasket flange and to apply a force directly upon the clamping band to insure proper positioning and locking of the clamping band. The hydraulic jack may also include a swingable member having a free end which moves along a curved path to follow the movement of the clamping band as it expands. The initial configuration of the gasket expedites the insertion, expansion and locking of the clamping band. A cooperating groove receives a projection, the groove and projection being adjacent at opposite ends of the clamping band to prevent relative axial movement of the clamping band ends as it is expanded.
518134
Ditcher Jack
Westhoff James A.
A-Lok Products Inc.
Borden Ladner Gervais Llp
LandOfFree
Method and apparatus for providing watertight seal for... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for providing watertight seal for..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for providing watertight seal for... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1229603