Patent ID: 7350760

Claim:
A clamp for concrete forms, comprising: a first substantially L-shaped clamp arm having a first clamp leg with an outer shoulder cam surface, and a first joint leg extending about 90° to the first clamp leg; a second substantially L-shaped clamp arm having a second clamp leg located opposite to the first clamp leg, and a second joint leg extending about 90° to the second clamp leg and rotatably jointed to the first joint leg; and a clamp lever body comprising third and fourth arms defining an opening, each of the third and fourth arms having an end part rotatably jointed to the second joint leg; wherein two or more frames located between the first and second clamp legs are pressed against each other while the opening in the clamp lever body is engaged by the outer shoulder cam surface on the first clamp arm, and at least the first joint leg fits in the opening defined by the third and fourth arms.