Patent ID: 6350024
Filing Date: 2002-02-26
Classification: B41J

Abstract:
A fastening device for securing a diaphragm to a chassis associated with an ink container, the diaphragm and the chassis defining a variable volume chamber for delivering pressurized ink from the ink container, the fastening device comprising:a base portion elongated along an axis of elongation; an upright circumferential wall surrounding the base portion, the upright circumferential wall having a plurality of breaks that define a pair of upright sides on either side of the axis of elongation, each upright side of the pair of upright sides extending upward and outward away from the base portion so as to form an obtuse angle relative to the base portion, each upright side of the pair of upright sides having an engagement portion disposed toward an end of the upright side opposite the base portion; and wherein with the fastening device positioned on the chassis with the diaphragm between the base portion and the chassis, the engagement portion disposed on each upright side of the pair of upright sides is positioned to engage a flange on the chassis when the pair of upright sides are urged toward the chassis so that the engagement portion engages the flange fixing the diaphragm to the chassis.