Abstract: An autonomous cleaning robot includes a drive operable to move the autonomous cleaning robot across a floor surface; a cleaning assembly configured to clean the floor surface; a receiver configured to receive an indication of cat activity in a cat box; and a controller configured to navigate the autonomous cleaning robot to the cat box to execute a cleaning mission in response to the received indication of cat activity.

Abstract: One embodiment of the present invention relates to securities trading using electronic systems. Another embodiment of the present invention relates to a computer implemented trade execution method, comprising: sending from an execution venue to each of a plurality of smart order routers a notification message; receiving at each of the smart order routers the notification message sent thereto, wherein the notification message notifies each of the smart order routers about the presence of a non-displayed priced order at the execution venue; sending from at least one of the smart order routers to the execution venue at least one order to execute against the non-displayed priced order; receiving at the execution venue each order sent from each of the smart order routers; and executing at least one order received from at least one of the smart order routers against the non-displayed priced order.

Abstract: The present invention is directed to the field of securities trading. One embodiment of the present invention relates to securities trading using electronic systems. Another embodiment of the present invention relates to a computer implemented trade execution method, comprising: sending from an execution venue to each of a plurality of smart order routers a notification message; receiving at each of the smart order routers the notification message sent thereto, wherein the notification message notifies each of the smart order routers about the presence of a non-displayed priced order at the execution venue; sending from at least one of the smart order routers to the execution venue at least one order to execute against the non-displayed priced order; receiving at the execution venue each order sent from each of the smart order routers; and executing at least one order received from at least one of the smart order routers against the non-displayed priced order.

Abstract: The present invention relates to a stand alone system for generating electrical power using hydraulic supports on which a weighted object is mounted. A pump injects fluid into the supports to raise the weighted object and thereby store energy in the elevated object. A valve can be opened to deliver fluid under pressure to a turbine or hydraulic motor driven generator to generate electricity.

Abstract: The present invention relates to a system for generating electrical power using hydraulic supports on which a building structure is mounted. A pump injects fluid into the supports to raise the building structure and thereby store energy in the elevated structure. A valve can be opened to deliver fluid under pressure to a turbine or hydraulic motor driven generator to generate electricity.

Abstract: The present invention relates to a system for generating electrical power using hydraulic supports on which a building structure is mounted. A pump injects fluid into the supports to raise the building structure and thereby store energy in the elevated structure. A valve can be opened to deliver fluid under pressure to a turbine to generate electricity.

Abstract: The present invention relates to a system for generating electrical power using hydraulic supports on which a building structure is mounted. A pump injects fluid into the supports to raise the building structure and thereby store energy in the elevated structure. A valve can be opened to deliver fluid under pressure to a turbine or hydraulic motor driven generator to generate electricity.

Abstract: The present invention relates to a system for generating electrical power using hydraulic supports on which a building structure is mounted. A pump injects fluid into the supports to raise the building structure and thereby store energy in the elevated structure. A valve can be opened to deliver fluid under pressure to a turbine to generate electricity.

Abstract: Apparatus for pulverizing coal including a bowl and a cooperating roller between which members the coal is pulverized. The grinding surface of the roller is made up of a removable sleeve which is securely held on the journal bearing housing by means of wedge lock rings located at each end of the sleeve. These wedge lock rings, along with the roller, can be easily assembled, and provide positive locking of the removable sleeve onto the journal bearing housing, even if there are slight irregularities on the tapered surfaces of the sleeve.