Abstract: A fast C-clamp comprises a generally C-shaped frame and a fixed jaw disposed in a front end of the frame. A fixed handle has an interior to receive a driving handle. The driving handle has an upper flange disposed on an upper end of the driving handle, a pivot hole and a rectangular hole formed on the upper portion of the driving handle. The driving handle and the fixed handle are fastened together. A holding seat is disposed in front of the fixed handle. A lower flange with a slot therein is disposed beneath the holding seat. A through hole is formed on the holding seat. The rear end of the frame is positioned in the slot. A round hole and a square hole are formed on the rear upper portion of the fixed handle. A shaft has a front end to connect a ball and a rear end to connect a holder. The ball is inserted in a rear portion of a movable jaw. A push plate with a circular hole thereon is disposed in the interior between a compression spring and the upper flange. A press plate has a center hole.

Abstract: A C-clamp has a generally C-shaped frame and a fixed jaw disposed in the front end of the frame. A connecting end and an adjacent rectangular shaped recess are disposed at the rear end of the frame. A square hole is formed at the center of the holding seat. A fixed handle which has a groove to receive a driving handle connects the holding seat. A hole on the driving handle and two corresponding holes on the fixed handle are passed through by a pin so that the two handles are fastened together. A square hole is formed on the fixed handle. A square spindle is inserted through the square hole of the fixed handle and the square hole of the holding seat. A spring and a pushing plate which has a square hole receives the spindle so that the spring and the plate are blocked by the holding seat. The flange which is disposed on the upper end of the driving handle pushes the pushing plate forwardly.

Abstract: A C-clamp assembly has a fixed handle, a circular holding seat disposed in a front of the fixed handle, a driving handle inserted in an interior of the fixed handle, a push rod passing through the circular holding seat and the fixed handle transversely, a movable jaw disposed in a front end of the push rod, a generally C-shaped frame extending from the circular holding seat transversely, an elastic clamp device positioned on the generally C-shaped frame, and a fixed jaw disposed on a front end of the generally C-shaped frame.

Abstract: An angle-adjustable C-clamp has a handle with an upper interior to receive a rod. The upper front edge of the handle has a couple of step-shaped front edges with two positioning posts extending forward from each front edge. The positioning posts are inserted in a rotary seat and a disk plate. The rotary seat has a central opening to receive the positioning posts. An upper and lower seat lugs are protruded upward and downward from the rotary seat, respectively. The disk plate which has a central square hole and four rectangular holes corresponding to the four positioning posts is disposed in the rotary seat. The C-shaped frame has a lobe at one end and a fixed jaw at the other end. The lobe connects the lower seat lug. The rod has a ball at front end. The rod passes through the central opening and the square hole. The ball is inserted in the socket of the movable jaw.

Abstract: A C-clamp including a grip fixed to a body, a rod laterally extended through the upper end of the grip and extended into the body, a rack formed in the rod, a handle having an upper end pivotally coupled to the grip, a pawl pivotally coupled in the upper end of the handle for engagement with the rack, a catch disposed in the grip and engaged with the rack for preventing backward movement of the rod, whereby, the rod is pushed forward when the handle pulled toward the grip, and the rack is disengaged from the pawls when the rod is rotated.