Apparatus for repairing lower units

Details Apparatus for repairing lower units Apparatus for repairing lower units

1993-06-07

1994-05-03

Rosenbaum, Mark

Metal working

Means to assemble or disassemble

Means comprising hand manipulatable tool

2940208, 2940213, 228 493, 408222, B25B 2714

Patent

active

053075501

ABSTRACT:
Worn screw threads in the lower unit of a motorboat are repaired by cutting off the trailing end of a housing that is formed integral with the lower unit. The cut off part has the worn screw threads formed in it. A replacement part having pre-formed screw threads is welded into place to replace the cut off part, and a screw thread-cutting tool is used to clean and remove warpage from the screw threads in the replacement part after the welding is completed. An alignment tool holds the replacement part during the welding procedure.

REFERENCES:
patent: Re28190 (1974-10-01), LaForce et al.
patent: 2343632 (1944-03-01), Bakewell
patent: 2409865 (1946-10-01), Jewell
patent: 3864806 (1975-02-01), Hanson et al.
patent: 5044083 (1991-09-01), DeCarolis et al.
patent: 5090608 (1992-02-01), Jones
patent: 5197832 (1993-03-01), Porter, Jr.

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