摘要:
A rotary tool accessory for shaping hard, brittle material is disclosed. In one embodiment, a work portion includes a first flute extending from one end portion of the work portion toward the other end of the work portion and a first land adjacent to the first flute. A first leading edge is located between the first flute and the first land and at least one recess extends from the first leading edge into the first land. An abrasive material is located at the surface of the first leading edge.
摘要:
A rotary tool accessory for shaping hard, brittle material is disclosed. In one embodiment, a work portion includes a first flute extending from one end portion of the work portion toward the other end of the work portion and a first land adjacent to the first flute. A first leading edge is located between the first flute and the first land and at least one recess extends from the first leading edge into the first land. An abrasive material is located at the surface of the first leading edge.
摘要:
The present invention is directed to a tool accessory case having a first and a second housing member pivotally connected to each other along a hinge portion and forming a tool holding cavity. The tool accessory case also has at least one index configured for receiving at least one elongated tool accessory disposed in one of the housing members. The index has an upper guide for contacting an upper portion of the tool accessory, and a lower guide for contacting a lower portion of the tool accessory. Further, a flexible arm is included on either the index or one of the first and second housing members. The flexible arm is configured for deforming and applying a lateral pressure to the lower portion of the tool accessory for the purpose of positively retaining the tool accessory in the index. The tool accessory is slidingly received by the index, and the lateral pressure is applied by the flexible arm when the tool accessory is generally entirely received by the index.
摘要:
A method of maintaining a printhead in an operable condition is provided. The method comprises the steps of: (i) providing a chassis having mounted thereon: a maintenance roller having an elastically deformable contact surface and an ink removal system for removing ink from the maintenance roller; (ii) moving the chassis towards the printhead such that the contact surface is sealingly engaged with an ink ejection face thereof; (iii) moving the chassis away from said printhead such that the contact surface is disengaged from the face; and (iv) rotating the maintenance roller such that ink is removed from the contact surface by the ink removal system.
摘要:
A rotary tool accessory in one embodiment includes a base, a circular wall extending upwardly from the base about a central axis, the circular wall including an inner face, an outer face and a circular rim, a first cutting group including a first inwardly extending tooth extending from a location directly above the circular wall to a location closer to the central axis than the inner face, a first outwardly extending tooth extending from a location directly above the circular wall to a location farther from the central axis than the outer face, and a first gullet extending downwardly from the rim toward the base, a second cutting group including a second inwardly extending tooth, a second outwardly extending tooth, and a second gullet, and a toothless expanse of the rim extending between the first cutting group and the second cutting group.
摘要:
A system and method for measuring contact pressures between two surfaces, and especially, between the body and a device resting on the body, e.g., the skin and a breathable gas mask. A deformable, resilient probe having a flow passage therein is initially placed between the two surfaces such that the flow passage is blocked. Fluid pressure within the probe is then increased until the pressure in the probe overcomes the contact pressure between the two surfaces, such that fluid begins to flow through the flow passage in the probe. The pressure at which the fluid begins to flow through the flow passage in the probe is recorded as the contact pressure between the two surfaces. Contact pressure maps created using this apparatus and method may be used to create anthropometric models of the face and other body parts.
摘要:
A method of removing particulates from an ink ejection face of a printhead is provided. The method comprises the steps of: (i) flooding the face with ink from the printhead, thereby dispersing the particulates into the flooded ink; and (ii) transferring the flooded ink, including the particulates, onto a disposable sheet moving through a maintenance zone adjacent the face, wherein the sheet does not contact the face.
摘要:
A printhead maintenance assembly for maintaining a printhead in an operable condition is provided. The maintenance assembly comprises: (a) a printhead having an ink ejection face; (b) a first roller having an outer surface for receiving ink from the face; (c) a second roller engaged with said first roller, the second roller being configured for receiving ink from the first roller; (d) a cleaning pad in contact with the second roller; and (e) a mechanism for rotating the first and second rollers.
摘要:
A comfortable low-leak mask assembly for use with Non-Invasive Positive Pressure Ventilation (NIPPV) is provided to improve patient compliance and/or treatment. The mask system may include headgear having straps that are substantially inextensible and/or micro-adjustable; and/or a mask and/or cushion that includes various structures to allow enhanced/tailored sealing and/or fit at selected locations on the patient's face.