Implements or apparatus for applying pushing or pulling force – Single throw lever – Mechanically actuated
Reexamination Certificate
2005-06-28
2005-06-28
Watson, Robert C. (Department: 3723)
Implements or apparatus for applying pushing or pulling force
Single throw lever
Mechanically actuated
C254S122000, C254S103000, C254SDIG010, C254SDIG002, C254SDIG002
Reexamination Certificate
active
06910677
ABSTRACT:
A battery driven reversible motor and speed reduction gear assembly coupled to a worm-screw scissor jack, all mounted on a flat, stable platform (base plate) for use in raising and lowering the corner of a vehicle. The device can be powered from a rechargeable battery pack or from the vehicle's battery. A controller unit extended by means of a cable is used to raise and lower the vehicle while the user stands out-of-the-way in safe location. The device also has a light for illuminating the work area for nighttime application. In use, the lift plate on top of the scissor-jack is placed under the frame or axle of the vehicle close to the flat tire and the power switch is turned ON. The user then walks away from the vehicle, with the controller unit in his/her hand, to a safe distance. The UP button on the controller unit is pressed to enable the motor and gear drive so that the drive shaft, which is coupled to the worn-screw of the scissor-jack, turns slowly lifting the corner of the vehicle up until the flat tire is off the ground. This process is reversed to lower the vehicle once the flat tire has been changed.
REFERENCES:
patent: 3451655 (1969-06-01), Scott
patent: 3623707 (1971-11-01), Klopp
patent: 4653727 (1987-03-01), Chang et al.
patent: 4943034 (1990-07-01), Wagnon
patent: 5085407 (1992-02-01), Lonon
Miller Patricia N.
Miller Terry R.
LandOfFree
Portable power jack device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Portable power jack device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Portable power jack device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3499502