Patent application number | Description | Published |
20120103940 | GAS BLAST CIRCUIT BREAKER WITH MAKING RESISTANCE CONTACT AND ITS MAKING AND BREAKING METHOD - A gas blast circuit breaker with a making resistance contact includes a first movable electrode in which a first arc electrode and a first main electrode in a concentric state are arranged, a second movable electrode in which a second arc electrode and a second main electrode in a concentric state are arranged and which is arranged to face the first movable electrode in the longitudinal direction, a drive device to drive the two movable electrodes to contact with or separate from each other, a conductive support member to slidably support the second main electrode, a making resistive element to slidably support an end portion of the second arc electrode, and a making resistance contact having a fixed making resistance contact fixed to the conductive support member around the second arc electrode and a movable making resistance contact supported by the second arc electrode. | 05-03-2012 |
20120242018 | BUFFERING DEVICE FOR THE OPERATING MECHANISM OF A SWITCHGEAR, AND METHOD OF LUBRICATION THEREOF - A piston rod ( | 09-27-2012 |
20140353086 | BUFFERING DEVICE FOR THE OPERATING MECHANISM OF A SWITCHGEAR, AND METHOD OF LUBRICATION THEREOF - A piston rod ( | 12-04-2014 |
20140353888 | BUFFERING DEVICE FOR THE OPERATING MECHANISM OF A SWITCHGEAR, AND METHOD OF LUBRICATION THEREOF - A piston rod ( | 12-04-2014 |
20140353889 | BUFFERING DEVICE FOR THE OPERATING MECHANISM OF A SWITCHGEAR, AND METHOD OF LUBRICATION THEREOF - A piston rod ( | 12-04-2014 |
20140353890 | BUFFERING DEVICE FOR THE OPERATING MECHANISM OF A SWITCHGEAR, AND METHOD OF LUBRICATION THEREOF - A piston rod ( | 12-04-2014 |