Portable manway cover hinge device
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Oct 18, 2011
Grant Date -
Oct 23, 2008
app pub date -
Apr 14, 2008
filing date -
Apr 17, 2007
priority date (Note) -
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status (Latency Note)
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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.
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