Abstract: A power generation element includes a magnetic member that produces a large Barkhausen effect and magnetism collection members including an insertion part having the magnetic member inserted therethrough. The magnetism collection member includes a first component on an opposite side of a boundary plane to a magnetic field generation unit and a second component on the same side of the boundary plane as the magnetic field generation unit, the boundary plane passing through a center of an imaginary circle inscribed in the insertion part and having a diameter equal to a length of the insertion part in a third direction perpendicular to first and second directions, the first direction is a direction of the insertion of the magnetic member, and the second direction is a direction in which the magnetic field generation unit is disposed. A volume of the second component is larger than a volume of the first component.

Abstract: A filtration apparatus having a cover pivotably installed through a hinge mechanism has a casing bracket secured to a casing flange and a cover bracket secured to the cover. A pin is inserted through insertion holes in side walls of the casing bracket and through insertion holes in side walls of the cover bracket. The filtration apparatus is provided with a stopper mechanism for maintaining the cover in a full-open position when it is fully opened, and also provided with a stopper-releasing mechanism for canceling the stopper function.

Abstract: A filtration apparatus having a cover pivotably installed through a hinge mechanism has a casing bracket secured to a casing flange and a cover bracket secured to the cover. A pin is inserted through insertion holes in side walls of the casing bracket and through insertion holes in side walls of the cover bracket. The filtration apparatus is provided with a stopper mechanism for maintaining the cover in a full-open position when it is fully opened, and also provided with a stopper-releasing mechanism for canceling the stopper function.

Abstract: Described herein is a gas filter including a plural number of axially stacked filtration units, each unit having filter membranes bonded by thermal fusion bonding to the opposite sides of a flat holder. Influent gas channels are formed between adjacent unit of the filter, and an axial gas passage for effluent filtrate gas is provided by axially aligned center openings through the flat holders. A large number of parallel ribs are provided in closely spaced relation on each side of each flat holder, each of the ribs in turn having a gradually diminishing width in section toward the outer end thereof. A large number of gas flow apertures are defined by the ribs, and gas flow passages communicate the gas flow apertures with the center openings forming the axial gas passage.