UNIVERSE MACHINE CORPORATION Patent applications |
Patent application number | Title | Published |
20140246105 | SHUTOFF VALVE - A safety interlock valve with two flow passages, which in one position allows flow through the flow passages and blocks flow between them, and in another position blocks flow through the flow passages and allows flow between them. The safety interlock valve can be used in hydraulic systems such as power tongs. | 09-04-2014 |
20110296958 | COMPACT POWER TONG - A power tong for rotating a pipe, the power tong comprising: a frame having a pair of arcuate front portions defining a throat for receiving the pipe; a cage plate assembly mounted for rotation on the arcuate front portions about a center of rotation, the cage plate assembly having an opening that is alignable with the throat; a ring gear mounted for rotation within, and supported by, the cage plate assembly about the center of rotation, the ring gear having an opening that is alignable with the throat; the ring gear cooperating with jaws mounted on the cage plate assembly for gripping the pipe upon rotation of the ring gear. | 12-08-2011 |
20110296957 | POWER TONG WITH DOOR JAMMER VALVE - A power tong with a cable operated door jammer valve for shutting off the hydraulic supply of a power tong when the door is opened. | 12-08-2011 |