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US 6,931,908 B1Granted
Tube-bending device
OwnerKen J. Mitsoninventor
Life of this patent
Estimating the term…
Abstract
A tube-bending device including a frame having a reciprocably mounted anvil and a coacting crossbar with tube-restraining blocks, together with a ratchet mechanism for driving the anvil toward the blocks to perform tube-bending operations, wherein the crossbar is reinforced with reinforcing ribs to prevent failure.
Claims14
A tube-bending device comprising:
- a frame, an anvil reciprocally mounted on said frame against which a tube can be positioned for a bending operation,
- a crossbar mounted on said frame extending perpendicular to the path of said anvil;
- tube-engaging means at each end of said crossbar for restraining a tube at each side of said anvil, wherein driving said anvil toward said tube-engaging means causes bending of the tube;
- a ratchet mechanism on said frame for driving said anvil substantially linearly in one direction;
- means for operating said ratchet mechanism;
- the improvement being in said crossbar which further includes reinforcing means for preventing crossbar failure during a bending operation.
3 more elements
In a portable tube-bending device comprising:
- an elongated frame having a handle at one end,
- a crossbar mounted on the frame at the end opposite the handle, spaced apart tube-engaging blocks on the crossbar against which a tube is held,
- an anvil slidably mounted on the frame and incrementally movable toward and between said blocks to perform a tube-bending operation,
- means for driving the anvil,
- the improvement being in the crossbar, wherein the crossbar includes reinforcing means to prevent crossbar failure.
2 more elements
Dependencies are inferred from the claim text.