Patent ID: 6308348
Filing Date: 2001-10-30
Classification: E03D

Abstract:
A continuous water level controller comprising:a tubular base member including a first end having an outlet defined with a shoulder extending inward and a second end, said base member including an inlet defined in and extending through a periphery;a sleeve mounted in said base member and including an annular flange extending inward from a internal periphery and near a middle portion of said sleeve, said sleeve including multiple slots defined in and extending through the periphery between said annular flange and said first end of said base member;a block slidably received in said sleeve and abutting one side of said annular flange toward said first end of said base member, said block including a centrally defined through hole;a cover attached to said first end of said base member to seal said second of said base member, said cover including a centrally defined hole aligning with said through hole of said block;a first spring mounted between said block and cover;a shaft slidably received in and extending through said hole of said cover, said first spring and said through hole of said block, said shaft having a second end extending out from said sleeve toward said outlet and a first end extending out from said cover, said shaft and said block forming a gap;a piston penetrated by said shaft, securely attached to said shaft and slidably received in said sleeve under said annular flange of said sleeve,a second spring mounted between said annular flange of said sleeve and said piston and penetrated by said shaft; anda stopper attached to said second end of said shaft, said stopper closing said outlet of said base member in a rest position due to the force of restitution of said second spring.