Thomson Industries, Inc. Patent applications |
Patent application number | Title | Published |
20150075306 | TELESCOPING LINEAR ACTUATOR WITH SCREW DRIVES - A linear actuator ( | 03-19-2015 |
20140298934 | ANTI-ROTATION DEVICE FOR LINEAR ACTUATOR AND LINEAR ACTUATOR COMPRISING SAME - An anti-rotation device for use in a linear actuator comprises a hollow body permitting passage of a screw therein. At least one pair of legs extends longitudinally away from the hollow body and each leg of the at least one pair includes a first key feature configured for mating or complementary engagement with a second key feature of an housing used to enclose the screw, nut and anti-rotation device. In one embodiment, each leg is configured to extend or flex radially outward relative to an outer diameter of the hollow body. In another embodiment, the second key features of the housing are substantially longitudinally uniform, whereas the first key feature of at least one of the legs includes a longitudinally non-uniform feature. These pre-loading features induce self-centering of the anti-rotation device that reduces or eliminates play between the components and noise while also improving performance of the linear actuator. | 10-09-2014 |
20130216164 | LINEAR MOTION BEARING WITH IMPROVED OUTER HOUSING SLEEVE - A linear motion bearing assembly comprising a ball retainer structure having at least a portion of a plurality of open axial ball tracks formed therein. The ball tracks including an open load-bearing portion, an open return portion and turnarounds interconnecting the load bearing and return portions. A plurality of bearing balls are disposed in the ball tracks. At lease one load bearing plate is axially positioned adjacent said ball retainer structure for receiving load from the balls disposed in the load-bearing portion of the ball tracks. Various outer housing sleeves are disclosed including a structure split axially and a monolithic structure. | 08-22-2013 |