Patent ID: 8517365

Claim:
A clamp assembly comprising: a header assembly having first and second ends and a plunger having an aperture with a portion of said aperture being threaded, said aperture forming a portion of a bore extending through said header assembly; first and second arms, said first arm pivotally connected to said header assembly first end and said second arm pivotally connected to said header assembly second end, said first and second arms in opposing spaced relationship; a ram assembly having a ram first end with a passageway through which at least a portion of said first arm extends and arum second end with a passageway through which at least a portion of said second arm extends, said ram assembly having a contact surface; a stem assembly comprising an upper stem end coupled to a handle, a lower stem end rotatably connected to said ram assembly, and a threaded stem portion arranged and designed to threadedly engage said aperture threaded portion; said plunger having an engaged position in which said aperture threaded portion threadedly engages said threaded stem portion, and a disengaged position in which said aperture threaded portion does not threadedly engage said threaded stem portion.