Magnetic gripper device
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Mar 9, 1993
Grant Date -
N/A
app pub date -
Apr 20, 1992
filing date -
Apr 20, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A climbing apparatus is provided for climbing ferromagnetic surfaces, such as storage tanks and steel frame structures. A magnet assembly is rotatably mounted in a frame assembly. The frame assembly provides a pair of cam surfaces having different dimensions so that, when the frame is rotated, the cam surfaces contact the ferromagnetic surface to separate the magnet assembly from the surface. The different cam dimensions enable one side of the magnet at a time to be detached from the surface to reduce the effort needed to disengage the climbing apparatus. The cam surface also provides for smoothly attaching the apparatus. A hardened dowel pin is also attached to the frame and the pointed end of the dowel engages the surface when the magnet is attached to the surface to prevent downward sliding movement of the assembly under the weight of the user.
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