A duct coupler assembly includes a female duct coupler, where the female duct coupler is coupled to a first duct segment. The female duct coupler includes a female duct coupler body having an inner surface having an inner diameter and a bayonet slot formed therein. The duct coupler assembly further includes a male duct coupler. The male duct coupler is coupled to a second duct segment. The male duct coupler includes a male duct coupler body having an outer surface having an outer diameter, where the outer diameter is smaller than the inner diameter of the inner surface of the female duct coupler body. The male duct coupler has a bayonet post extending from an outer surface of the male duct coupler body, and the male duct coupler body is positioned within the female duct coupler body such that the bayonet post is positioned within the bayonet slot wherein the male duct coupler is coupled with the female duct coupler.

Perfected curving machine comprising a support bench configured to simultaneously support one or more bars, wherein said support bench has an oblong development in relation to the length of the bars, and comprises at least one bending unit controllably mobile along the support bench in order to bend said bars, and clamping means configured to constrain the position of the bars on the support bench.

Perfected curving machine comprising a support bench configured to simultaneously support one or more bars, wherein said support bench has an oblong development in relation to the length of the bars, and comprises at least one bending unit controllably mobile along the support bench in order to bend said bars, and clamping means configured to constrain the position of the bars on the support bench.

Drawing and straightening unit (10) having at least one first roller (12) and at least one second roller (16, 17, 18) opposite said first roller (12) with respect to an axis of feed (X) of said at least one metal product (P). The present invention also concerns an apparatus (100), comprising a feed unit (119) and a drawing and straightening unit (10), and a corresponding method to draw and straighten metal products (P) with said drawing and straightening unit (10).

The method for processing bars provides for feeding a predefined number of bars (2) into a feeding station (3). The method further provides for transferring said fed bars to an operating assembly (4) by means of a transfer assembly (5) comprising at least one transfer device (50).

A bending head for an automatic bending machine includes a frame. A first rotationally driven bending roll is arranged in the frame. A bending arm is transversely arranged below the first bending roll and is coupled to a bi-directional drive, with an end of the bending arm rotatable about the longitudinal axis of the first bending roll. A rotatable second bending roll is mounted to an opposite end of the bending. A bending support is configured with the first and second bending rolls. The second bending roll is rotationally coupled to the first bending roll in a forced torque transmission manner for mutual counter-direction rotation of the first and second bending rolls. The bending rolls have axially symmetric reduced lateral circumferential sections. The bending roll controls an angle of mutual rotation of both of the first and second bending rolls.

A bending head for an automatic bending machine includes a frame. A first rotationally driven bending roll is arranged in the frame. A bending arm is transversely arranged below the first bending roll and is coupled to a bi-directional drive, with an end of the bending arm rotatable about the longitudinal axis of the first bending roll. A rotatable second bending roll is mounted to an opposite end of the bending. A bending support is configured with the first and second bending rolls. The second bending roll is rotationally coupled to the first bending roll in a forced torque transmission manner for mutual counter-direction rotation of the first and second bending rolls. The bending rolls have axially symmetric reduced lateral circumferential sections. The bending roll controls an angle of mutual rotation of both of the first and second bending rolls.

Machine for bending metal products (B) comprising a drawing unit (11) configured to feed at least one metal product (B) along an axis of feed (D) and toward a bending unit (12) and a shearing unit (14) configured to shear the metal product (B). The bending unit (12) is mounted on a translating platform (13) able to be translated in a direction of translation (T) transverse to the axis of feed (D), and at least one part of the shearing unit (14) is mounted on the translating platform.

Machine for bending metal products (B) comprising a drawing unit (11) configured to feed at least one metal product (B) along an axis of feed (D) and toward a bending unit (12) and a shearing unit (14) configured to shear the metal product (B). The bending unit (12) is mounted on a translating platform (13) able to be translated in a direction of translation (T) transverse to the axis of feed (D), and at least one part of the shearing unit (14) is mounted on the translating platform.

A ratcheting hand tool (or Hickey bar) for bending rebar comprising a ratchet mechanism, a handle attached to the ratchet mechanism, and a Hickey bar tool head attached to the ratchet mechanism, which tool head may be a detachable.