Adjustable shims and washers

Details Adjustable shims and washers Adjustable shims and washers

2005-06-08

2010-02-02

Huson, Monica A (Department: 1791)

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

Shaping against forming surface

C264S320000, C264S345000

Reexamination Certificate

active

07655170

ABSTRACT:
A method comprising disposing an active device comprising a shape memory polymer upon a first surface; wherein the active device is operative to change at least one physical attribute in response to a thermal activation signal; activating the active device with a thermal activation signal to substantially decrease its modulus, contacting and compressing the active device with a second surface, and cooling the device to set a compressed geometry. In another embodiment, a method comprising disposing an active device comprising a shape memory polymer in a gap between two opposing surfaces; wherein the active device is operative to exhibit a memorized shape in response to a thermal activation signal; activating the active device with a thermal activation signal to increase a dimension of the active device; filling the gap between the opposing surfaces, and cooling the device to set a new gap filling dimension.

REFERENCES:
patent: 6156842 (2000-12-01), Hoenig et al.
patent: 6388043 (2002-05-01), Langer et al.
patent: 6720402 (2004-04-01), Langer et al.
patent: 6858680 (2005-02-01), Gunatillake et al.

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