Patent ID: 7827627
Filing Date: 2010-11-09
Classification: E03D

Abstract:
1. A dual-detent toilet flush assembly, comprising: a flapper; a connector attached to a toilet flush handle on one end and to a connection point of the flapper on the other end, wherein when a user engages the toilet flush handle, the connector lifts the flapper away from a flapper seat; a first detent mechanism; a first flush pivot arm attached to a first side of the flapper, wherein the first flush pivot arm interacts with the first detent mechanism when the flapper rises part way from the flapper seat such that the first detent mechanism holds the flapper open in a first open position; a second detent mechanism; a second flush pivot arm attached to a second side of the flapper, wherein the second flush pivot arm interacts with the second detent mechanism when the flapper rises to a second open position where the flapper is held open by the second detent mechanism; a first flush float associated with the first detent mechanism on the same side of the assembly as the first flush pivot arm, wherein a buoyancy of the first flush float creates a force upon the first detent mechanism; a second flush float associated with the second detent mechanism on the same side of the assembly as the second flush pivot arm and at a position different from the first flush float, wherein buoyancy of the second flush float creates a force upon the second detent mechanism; wherein, when the flapper is opened to a first flush position upon engagement of the toilet flush handle: a) the first flush pivot arm tilts and interacts with the first detent mechanism to allow the first detent mechanism to move in response to a change in a water level; b) upon a drop in the water level to a first level the first detent mechanism shifts downward to disengage the first flush pivot arm from the first detent mechanism thereby releasing the flapper to close on the flapper seat; and wherein when the flapper is opened to a second flush position upon engagement of the toilet flush handle: a) the second flush pivot arm tilts and interacts with the second detent mechanism to allow the second detent mechanism to move in response to the change in the water level; b) upon a drop in the water level to a second level, the second detent mechanism shifts downward to disengage the second flush pivot arm from the second detent mechanism thereby releasing the flapper to close on the flapper seat.