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US 5,310,284 AGranted
Weak link prop for wicket dam
AssigneeThe United States of America as represented by the Secretary of the Army
InventorRalph B. Snowberger
Life of this patent
Estimating the term…
Abstract
The invention is directed to a breakaway prop for a wicket employing a slble and rotatable prop bearing which is secured to the prop by shear pins. Upon application of sufficient force, the shear pins release the prop bearing and allow the wicket to drop without damaging the prop.
Claims7
A support for a wicket pivotable about an axis between extreme positions, said support for engaging a hurter having a hurter bearing, said hurter located at the downstream side of the wicket comprising:
- a prop secured to the downstream side of the wicket and having a free end for slidably engaging the hurter between the extreme positions of the wicket, said prop for engaging the support bearing as the wicket is raised to near the extreme upright position and means for causing a portion of the free end of the prop to break away in a controlled manner upon application of a selected force on the wicket.
Dependencies are inferred from the claim text.