Tap duct crimping tool
OwnerRobert M. Bilkieinventor
Life of this patent
Estimating the term…
Abstract
A tool for securing a tap duct to an opening in a tap duct sized main duct having a base structure for extending transversely across and seating in supported relationship against the exterior open end of a tap duct flanged at the opposite end; an anvil structure movable so as to force the flanged end of said tap duct outwardly and toward the interior wall of a main duct; manually activated bending structure mounted on said base structure suitable for extending said anvil structure against the flanges of said tap duct outwardly and toward the interior wall of said main duct.
Claims6
A bending tool for securing a tap duct to a main duct wherein the tap duct has a flanged interior end extending into the main duct through an opening therein and also has an open exterior end, said tool comprising:
- (a) base means for extending transversely across and seating in supported relationship against the exterior open end of the tap duct;
- (b) a handle means pivotably attached to said base means;
- (c) a rear leg assembly attached to said base means, said rear leg assembly adapted to extend interiorly into said duct, said rear leg assembly having a rear leg means, a retaining plate integrally attached thereto, and a duct-engaging foot means;
- and wherein said foot means is slidably attached to said rear leg assembly;
- and
- (d) manually actuated bending means mounted on said base means for extending therefrom into the open end of said tap duct and having anvil means movable in a bending movement upon actuation of said bending means for bending a flange of said flanged end outwardly of said tap duct and toward the interior surface of said main duct adjacent to said opening;
- said bending means comprising a duct-engaging front leg assembly including a front leg integrally attached to said handle and adapted to extend into said duct and an anvil means slidably attached to said front leg means and having a duct-engaging crimping face;
- wherein said front leg extends substantially perpendicular to said handle means and is adjustable so as to accommodate tap ducts of varying depths.
Dependencies are inferred from the claim text.