Self-retaining shim for use with a contoured machining template

Details Self-retaining shim for use with a contoured machining template Self-retaining shim for use with a contoured machining template

2005-05-26

2009-11-24

Howell, Daniel W (Department: 3726)

Cutting by use of rotating axially moving tool

Processes

Bit detachable

C024S067900, C024S545000, C024S555000, C024S570000, C029S464000, C206S449000, C408S103000

Reexamination Certificate

active

07621701

ABSTRACT:
Self-retaining shim apparatus and methods for providing an offset surface for supporting a template above a contoured workpiece such as the frame of an aircraft are disclosed. In one embodiment, an apparatus includes a shim portion of substantially uniform thickness, and one or more biasing members secured to the distal end thereof and extending toward the proximal end. A work piece is positioned between the biasing member and shim portion such that the biasing members are elastically deformed, resulting in a restoring force exerted on the workpiece serving to retain the shim in engagement with the workpiece. Contact pads secure to the free ends of the biasing members and have a contact portion offset from the free end. The contact portion is rounded to facilitate mounting and retention of the self-retaining shim.

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