Portable manway cover hinge device
AssigneeUniversal Hinge Corporation
InventorsEdward A. DePietro, James J. Porebski
Life of this patent
Estimating the term…
Abstract
A portable manway hinge device has a pair of hinge plates where each hinge plate has a support member with a hinge aperture positioned for alignment with a bolt opening of a manway cover and a manway flange, a linkage member adjacent a first end of each hinge plate and extending out of the plane of the hinge plate, and a pivotal connection coupling overlapping pairs of the linkage member of the pair of hinge plates.
Claims27
A portable manway hinge device for handling the removal and installation of a manway cover, the hinge device comprising:
- a pair of hinge plates wherein each hinge plate has a support member with a hinge aperture positioned for alignment with a bolt opening of a manway cover and a manway flange;
- a linkage member adjacent a first end of each hinge plate and extending out of the plane of the hinge plate;
- and
- a pivotal connection coupling overlapping pairs of the linkage member of the pair of hinge plates.
A method of handling the removal and installation of a manway cover to a manway flange, the method comprising:
- removing a plurality of manway cover bolts from a portion of the manway cover;
- assembling a portable manway cover hinge device having a pair of hinge plates wherein each hinge plate has a support member with a hinge aperture positioned for alignment with a bolt opening of a manway cover and a manway flange, a linkage member adjacent a first end of each hinge plate and extending out of the plane of the hinge plate, and a pivotal connection coupling overlapping pairs of the linkage member of the pair of hinge plates;
- aligning a hinge aperture of the support member with one of the plurality of bolt openings of the portion of the manway cover and the manway flange from which the bolts were removed;
- inserting a pin into each hinge aperture of one of the pair of hinge plates and corresponding manway cover bolt opening and a pin into each hinge aperture of the other of the pair of hinge plates and corresponding manway flange bolt opening;
- securing each pin within the corresponding cover bolt opening and flange bolt opening;
- and
- removing the remaining manway cover bolts from the manway cover.
A method of handling the removal and installation of a manway cover to a manway flange, the method comprising:
- removing a plurality of manway cover bolts from a portion of the manway cover;
- forming a plurality of corresponding openings in the manway cover and the manway flange;
- assembling a portable manway cover hinge device having a pair of hinge plates wherein each hinge plate has a support member with a hinge aperture positioned for alignment with one of the plurality of formed openings of the manway cover and the manway flange, a linkage member adjacent a first end of each hinge plate and extending out of the plane of the hinge plate, and a pivotal connection coupling overlapping pairs of the linkage member of the pair of hinge plates;
- aligning a hinge aperture of the support member with one of the plurality of bolt openings of the portion of the manway cover and the manway flange from which the bolts were removed;
- inserting a pin into each hinge aperture of one of the pair of hinge plates and corresponding manway cover bolt opening and a pin into each hinge aperture of the other of the pair of hinge plates and corresponding manway flange bolt opening;
- securing each pin within the corresponding cover bolt opening and flange bolt opening;
- and
- removing the remaining manway cover bolts from the manway cover.
In combination, a manway cover connected to a manway flange and a portable manway hinge device for handling the removal and installation of the manway cover, the combination comprising:
- a manway cover connected to a manway flange;
- and
- a portable manway hinge device connected to the manway cover and manway flange, the hinge device comprising:
- a pair of hinge plates wherein one hinge plate has a support member with a hinge aperture positioned for alignment with a bolt opening of the manway cover and wherein the other hinge plate has a support member with a hinge aperture positioned for alignment with a bolt opening of the cover flange;
- a removable pin inserted into the hinge aperture aligned with the bolt opening of the manway cover and a removable pin inserted into the hinge aperture aligned with the bolt opening of the cover flange.
- a linkage member adjacent a first end of each hinge plate and extending out of the plane of the hinge plate;
- and
- a pivotal connection coupling overlapping pairs of the linkage member of the pair of hinge plates.
Dependencies are inferred from the claim text.