Fluid control, treatment, or containment > Flow control > Water gate or adjustable weir > Condition responsive > To weight of liquid separated from a main body > Patents

Resources

Home

Browse by:

Browse by Category: Main > Engineering

Class Information
Number: 405/93
Name: Hydraulic and earth engineering > Fluid control, treatment, or containment > Flow control > Water gate or adjustable weir > Condition responsive > To weight of liquid separated from a main body
Description: Method or apparatus wherein the water gate has associated therewith which receives liquid therein from the body of liquid controlled by the water gate which means responds to the weight of the received liquid to control the position of the gate.

Patents under this class:

Patent Number	Title Of Patent	Date Issued
8511938	Flood flaps vent for sealed crawlspace	Aug. 20, 2013
6719491	Fluid level control system	Apr. 13, 2004
6171023	Water control gate	Jan. 9, 2001
4963057	Sluice gate for automatically regulating a level	Oct. 16, 1990
4449851	Energy-efficient automatic sluice gate for sustaining a fluid level	May. 22, 1984
4242009	Apparatus for automatically and selectively discharging saline water	Dec. 30, 1980