Patent ID: 7013500
Filing Date: 2006-03-21
Classification: E03C

Abstract:
1. A strainer, comprising: a body; a water collector located on a upper side of the body having an opening directing upwards and a drain port on the bottom connecting to a duct located therebelow; a filter having a plurality of drain apertures on the bottom and a button formed in a strut in the center movable up and down; a hollow tube coupled on the bottom of the water collector having a plurality of longitudinal and bulged walls on the inner perimeter that are spaced from one another to form a flute between every two neighboring bulged walls, each bulged wall having an arched guiding section on the bottom thereof, the guiding section having an indented wedged notch directing downwards; an extendable rod housed in the tube having lugs on the perimeter of the bottom thereof corresponding to the flutes; a plug fastened to the top end thereof engageable with the drain port and a round housing chamber formed on the bottom thereof; a latch member formed in a strut having a top end housed in the housing chamber and coupling sections corresponding to the lugs that have a slanted top end; and an elastic element having a top end housed in the latch member and a bottom end fastened to a coupling member.