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US 7,921,796 B1Granted
Collapsible arch bar
OwnerJohn S. Perry, Jr.inventor
Life of this patent
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Abstract
A collapsible arch bar for a water craft includes a pair of side arms pivotally attached to the gunnels on the water craft. A cover member is pivotally attached to the upper ends of the side arms allowing the arch bar to be collapsed rearwardly if the craft is approaching an overhead obstruction. An automated lifting means allows the water craft operator to automatically collapse and re-erect the arch bar, if desired.
Claims4
A collapsible arch bar comprising:
- a pair of spaced side arms each having a lower end and an upper end, the lower end of each side arm pivotally attached to a water craft;
- a substantially planar, pivotal cover member pivotally attached to the upper end of each of said side arms, said cover member having a lower surface whereby said cover is foldable onto the arms and said arms are foldable relative to said water craft to allow the water craft to clear an overhead obstruction;
- a first hydraulic cylinder attached to said water craft, said first hydraulic cylinder having a telescoping piston extending therefrom, said piston having an upper end slidably mounted on either of said side arms;
- a second hydraulic cylinder attached to either of said side arms, said second hydraulic cylinder having a telescoping piston pivotally attached to the lower surface of the cover;
- means for reversibly delivering hydraulic fluid to each of said cylinders allowing a user to easily collapse and re-erect the arch bar.
2 more elements
Dependencies are inferred from the claim text.