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US 2011/0209587 A1Published application
Tool for freeing seized bolts
AssigneeLisle Corporation
InventorVincent J. Urick, SR.
Life of this patent
Estimating the term…
Abstract
A tool may loosen seized bolts by sending shock waves into the bolt shank and thread areas via axial blows from a pneumatic hammer on the center of the bolt head prior to removal. The tool may allow impacts to be centered on the bolt head without damaging the bolt head or without worry of the bit jumping off the bolt.
Claims10
A tool comprising:
- a front end attached to a shaft;
- an opening in the front end, the opening fitting about a bolt head;
- and
- a raised convex center in the opening, wherein the raised convex center contacts a bolt head when the bolt head is placed within the opening.
1 more element
A tool comprising:
- a front end attached to a first end of a main shaft;
- a stub shaft attached to a second, opposite end of the main shaft;
- and
- a raised tool flare is disposed about the shaft, wherein the front end fits within an engagement opening in a bolt head.
1 more element
A method for freeing seized bolts, the method comprising:
- attaching a tool to a pneumatic hammer, the tool having a front end attached to a shaft;
- an opening in the front end, and a raised convex center in the opening;
- fitting the opening about a bolt head;
- and
- activating the pneumatic hammer to cause the raised convex center to strike the bolt head.
2 more elements
Dependencies are inferred from the claim text.