Accession Number : ADD008673

Title :   Drill-Tap-Bolt Padeye.

Descriptive Note : Patent Application,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Wernli,Robert L ; Caudy,Don W ; Hackman,Donald J

Report Date : 27 Mar 1981

Pagination or Media Count : 10

Abstract : This invention relates to a coupling apparatus for secure attachment to the surface of the plate-like structure by means of minimal mechanical motion. The apparatus includes a flat padeye portion having a suction cup one side and a coupling device such as a lifting eye on the other side. Several holes are spaced around the periphery of the padeye, each hole being of such radius that a linear drill tap bolt tool may pass through it. Each drill tap bolt tool comprises a drill, a tap and a bolt of similar radii which are joined together in colinear relationship. The suction cup holds the padeye in place while each of the drill tap bolt tools are sequentially rotated to drill and tap the plate-like structure and then to bolt the padeye to the plate-like structure. (Author)

Descriptors :   *Patent applications, *Couplings, *Marine salvage, *Underwater objects, Attachment, Plates, Drills, Taps, Bolts, Drilling, Holes(Openings), Suction, Towing

Subject Categories : Couplers, Fasteners, and Joints

Distribution Statement : APPROVED FOR PUBLIC RELEASE