Patent ID: 8356791

Claim:
A tubing squeeze-off apparatus, comprising in combination: a first elongated base member having a flat first side and a flat second side; a second elongated base member having a flat first side and a flat second side, wherein the first side of said first base member is parallel to, spaced apart from and faces the first side of said second base member; a drive block adapted to slide between said first base member and said second base member; a first inner jaw member rotatable about a first pivot centrally located on said first jaw member, and in the vicinity of one end of said first base member and said second base member; a second inner jaw member rotatable about the first pivot centrally located on said second jaw member, said first jaw member and said second jaw member rotating between said first base member and said second base member, said first jaw member and said second jaw member each having a leg portion on each side of the pivot thereof together forming a generally C-shaped opening capable of receiving said tubing; at least one pair of actuating bars, one end of each actuating bar pivotably attached to an end of said first inner jaw member on either side thereof and opposite the leg portion thereof, the opposite end of each actuating bar being pivotably attached to said drive block; a first squeeze-off jaw rotatable in the vicinity of a first end thereof about a second pivot location on the leg portion of said first inner jaw member; a second squeeze-off jaw rotatable in the vicinity of a first end thereof about a second pivot location on the leg portion of said second inner jaw member; a pair of first positioning bars, one end of each first positioning bar pivotably attached in the vicinity of a second end of said first squeeze-off jaw and a second end of said second squeeze-off jaw opposite the first end thereof, the second end of each first positioning bar being pivotably attached to said first base member; a third squeeze-off jaw rotatable in the vicinity of a first end thereof about a second pivot location on the leg portion of said first inner jaw member; a fourth squeeze-off jaw rotatable in the vicinity of a first end thereof about a second pivot location on the leg portion of said second inner jaw member; a pair of second positioning bars, one end of each second positioning bar pivotably attached in the vicinity of a second end of said third squeeze-off and said fourth squeeze-off jaw opposite the first end thereof, the second end of each second positioning bar being pivotably attached to said second base member; and means for moving said drive block between said first base member and said second base member; whereby a uniform gap is maintained between said first squeeze-off jaw and said second squeeze-off jaw and between said third squeeze-off jaw and said fourth squeeze-off jaw as said drive block is moved.