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US 7,017,464 B2Granted
Woodworking tension board
OwnerMarcel Coderreinventor
Life of this patent
Estimating the term…
Abstract
A tension board comprises a bow member that can deform resiliently to apply lateral force to a workpiece pushed between it and the fence of a table saw, and that may have an associated tension gauge element. Combination tools may employ two bow members having different force-generating characteristics, an array of feather members, and a single contact finger.
Claims18
A tension board for guiding a workpiece across the surface of a cutting machine table, comprising:
- a body having a peripheral portion extending peripherally along a plane extending transversely through said body, and having means for mounting said tension board upon the surface of a cutting machine table with said transversely extending plane through said body being to the cutting machine table surface, and at least one resiliently deformable bow member comprised of a strip of material having opposite end portions fixedly attached at mutually spaced, different points along said peripheral portion of said body and projecting generally arcuately from said different points, away from said body on said transversely extending plane thereof, laterally over the surface of the cutting machine table when so mounted, whereby said bow member can deform resiliently toward said body to cooperate with upstanding structure on the cutting machine table to apply lateral force to a workpiece pushed therebetween, said resiliently deformable bow member always being at a fixed location with respect to said plane.
In combination, a cutting machine having a table with a surface;
- and a tension board for guiding a workpiece across said cutting machine table surface, said tension board comprising:
- a body having a peripheral portion extending peripherally along a plane extending transversely through said body, and having means for mounting said tension board upon said surface of said cutting machine table with said transversely extending plane through said body being parallel to said cutting machine table surface, and at least one resiliently deformable bow member comprised of a strip of material having opposite end portions fixedly attached at mutually spaced, different points along said peripheral portion of said body and projecting generally arcuately from said different points, away from said body on said transversely extending plane thereof and laterally over said cutting machine table surface, whereby said bow member can deform resiliently toward said body to cooperate with upstanding structure on said cutting machine table to apply lateral force to a workpiece pushed therebetween, said resiliently deformable bow member always being at a fixed location with respect to said plane.
Dependencies are inferred from the claim text.