| Progress Mfg. Inc. Patent applications |
| Patent application number | Title | Published |
|---|
| 20110215286 | JACK FOOT RETRACTION SYSTEM - A system for supporting a vehicle. The system may include a vehicle jack in mechanical communication with a jack foot and a striker plate. The jack foot is rotatable relative to the vehicle jack on a rotation axis disposed on the vehicle jack and perpendicular to a long axis of the vehicle jack. The jack foot includes a base at a distal end of the jack foot. The jack foot also includes a cam surface at least in part at a proximal end of the jack foot. The cam surface is aligned with the striker plate and interacts with the striker plate to rotate the jack foot in response to movement of the vehicle jack from a lowered position to a raised position. | 09-08-2011 |
| 20100320040 | TRAILER BREAKAWAY SWITCH CABLE - The present invention relates generally to trailer and towing safety devices, and more particularly, but not necessarily entirely, to trailer automatic braking devices that initiate braking when a trailer becomes separated from its tow vehicle. | 12-23-2010 |
| 20080277903 | APPARATUS FOR RAISING A SPRING ARM ON A TRAILER HITCH - An apparatus for raising a spring arm of a trailer hitch. The apparatus may include a lift, such as a jack, for attaching to a tongue of a trailer. A link member may be pivotally attached to the lift. The link member may also be pivotally attached to a bracket which may be attached to the spring arm. A brace member may be attached to the link member on an end opposite the bracket. As the lift raises the link member, the link member may pivot about the brace member such that movement of the bracket may be amplified as compared to movement of the lift. Moreover, lifting of the spring arm can be easily accomplished. | 11-13-2008 |
