Patent ID: 7389978

Claim:
A jaw for a bar clamp, comprising: a main section structured and arranged to permit a bar to pass-through; a clamping face extending from said main section; a drive lever structured and arranged to couple the bar; a handle extending from said main section; and a trigger pivoted to said main section, said trigger having a first force applying mechanism structured and arranged to apply a first force against said drive lever at a first point on said drive lever that is remote from the bar as said trigger pivots with respect to said main section to provide low mechanical advantage to said drive lever, said trigger having a second force applying mechanism structured and arranged to apply a second force against said drive lever at a second point on said drive lever that is closer to the bar than said first point as said trigger pivots with respect to said main section to provide high mechanical advantage to said drive lever, wherein the first force applying mechanism is structured and arranged such that, as the trigger is pivoted away from its nonactuated position, the first force applying mechanism applies the first force against the drive lever before the second force applying mechanism applies the second force against the drive lever.