Abstract: A water-saving sheet and a water-saving device having the same is provided. The water-saving sheet includes a sheet body including a central assembling base and a plurality of through holes arranged around the central assembling base. A circumference of the sheet body has an engaging flange structure for being positionably engaged with an inner wall of a tube. An elastic ring is annularly arranged on the central assembling base. The elastic ring and the central assembling base form at least one first passage therebetween, the elastic ring and each said through hole form a second passage therebetween. The water-saving device includes one said water-saving sheet and a barrel member. An inner wall of the barrel member has a shoulder portion engageable with the engaging flange structure to restrict the sheet body from moving toward and out from the inlet end.

Abstract: An attachment system for connecting a piston cover to a piston body of a french press coffee maker comprises a plate having a top surface and a bottom surface. The bottom surface of the plate is adapted to be in contact with a top surface of the piston cover. The bottom surface has at least one peg extending therefrom. The at least one peg is adapted to be inserted into at least one aperture of the piston cover and corresponding at least one aperture of the piston body. The at least one peg is adapted to be secured to the bottom surface of the piston body. Piston heads for a brewing chamber of a french press coffee maker are also presented.

Abstract: A compressor plate valve having a valve seat, a valve guard and a valve plate. The valve plate is moveable between the valve guard and valve seat to control fluid passage through passages in the seat, the guard, and the plate. A valve stem passes through the center of the valve guard and is attached to the center of the valve plate. The valve stem provides guidance for the plate valve to ensure parallel motion. In addition to sealing surfaces that oppose passages, the seat and plate have landing surfaces that provide a braking effect when the valve closes through squeeze film action.