Method and apparatus for repairing a damaged propeller blade

Details Method and apparatus for repairing a damaged propeller blade Method and apparatus for repairing a damaged propeller blade

2007-08-28

2007-08-28

Jones, David (Department: 3725)

Metal deforming

By relatively movable offset tool-faces

Plural

C072S389400, C072S447000, C072S455000, C072S311000, C029S889100, C029S889600

Reexamination Certificate

active

10932619

ABSTRACT:
A propeller straightening apparatus utilizes a pair of adjustable hydraulic cylinders to apply pressure to a selected propeller blade of the propeller. Adjustments can include lateral, longitudinal and tilt angle. A propeller mount holds the propeller in a fixed position during straightening. The mount can be quickly loosened so that the propeller can be rotated to present a different propeller blade to the hydraulic cylinders. The cylinders have polyurethane tips portions that help grip the surface of the propeller. The apparatus can bend a selected propeller blade to change rake and/or pitch.

REFERENCES:
patent: 2013705 (1935-09-01), Warren
patent: 2393317 (1946-01-01), Edwards, Jr. et al.
patent: 2742947 (1956-04-01), Dobbs
patent: 3032092 (1962-05-01), Erlbacher
patent: 4058880 (1977-11-01), Hughey
patent: 4222259 (1980-09-01), Junes
patent: 5315856 (1994-05-01), Mackey
patent: 5377521 (1995-01-01), Mackey
patent: 5713233 (1998-02-01), McCarthy et al.

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