30-01-2014 дата публикации
Номер: US20140026308A1
A multi flush volume flush valve is in communication with an automatic flush control. The flush control determines the presence of a user and the amount of time the user uses the toilet. The usage time is compared to a predetermined time value to determine the appropriate flush volume based on an assumption regarding usage time and flush volume needs. The comparative value statistically adjusts to the restroom traffic. 1. A method for controlling the flush volume of a flush valve , comprising the steps of:detecting the presence of a user;initiating a usage timer upon detection of the user;{'sub': 'x', 'stopping the usage timer upon the cessation of detection of the presence of the user, thereby generating a usage time trepresenting elapsed time;'}{'sub': x', 'p', 'p', 'p, 'comparing the usage time tto an average usage time tor, if tdoes not exist, to a preset usage time T;'}selecting a flush volume to be used for a flush event based on the comparison, and{'sub': p', 'p', 'x', 'p, 'if Twas used for the comparison, averaging Tand tto generate average usage time t;'}{'sub': p', 'p', 'x', 'p, 'if twas used for the comparison, averaging tand tto generate a new average usage time which becomes t.'}2. The method of claim 1 , wherein tis t claim 1 , a predetermined average liquid waste use time and further wherein selecting the flush volume comprises claim 1 , if tis greater than t claim 1 , then selecting a full volume flush and if tis less than t claim 1 , then selecting a reduced volume flush.3. The method of claim 1 , wherein tis t claim 1 , a predetermined average solid waste use time and further wherein selecting the flush volume comprises claim 1 , if tis greater than t claim 1 , then selecting a full volume flush and if tis less than t claim 1 , then selecting a reduced volume flush.4. A method for controlling the flush volume of a flushometer claim 1 , comprising the steps of:monitoring for the presence of a user;detecting the presence of a user;initiating a usage ...
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