DAVID KEITH HANSEN
Pilots at Us Hwy 14/34, Norman Ranch, SD
License number
South Dakota A0771532
Issued Date
Feb 2016
Expiration Date
Feb 2018
Category
Airmen
Type
Authorized Aircraft Instructor
Address
Address
28187 Us Highway 14/34, Norman Ranch, SD 57532
Professional information
Lifting Apparatus
US Patent:
2006006, Mar 23, 2006
Filed:
Sep 21, 2004
Appl. No.:
10/947623
Inventors:
David Hansen - Fort Pierre SD, US
International Classification:
B66C 1/42
US Classification:
294103100, 294088000
Abstract:
Apparatus for gripping and lifting objects such as fence posts. A frame carries a pair of grippers that are slidingly movable along the frame to grasp a post or other object. The grippers may pivot so that the object remains in essentially constant vertical orientation despite arcuate motion of a tractor or other lifting machine by which the frame is lifted. The grippers may be actuated by hydraulic or other power provided by the lifting machine.