Joints and connections – Articulated members – Plural distinct articulation axes
Reexamination Certificate
2005-03-01
2005-03-01
Cottingham, John R. (Department: 3679)
Joints and connections
Articulated members
Plural distinct articulation axes
C403S057000, C403S090000, C600S228000, C600S229000, C248S181100
Reexamination Certificate
active
06860668
ABSTRACT:
The invention includes linkage assemblies comprising coupled links with metallic contact surfaces with improved stiffness. The inventors found significant mechanical problems with all previous descriptions of metallic contact links sufficient to preclude their commercial use. These metallic contact links are a significant improvement over existing plastic ball and metal joint, or all plastic beads as found in the prior art. The invention includes methods providing these links and high friction couplings between them, as well as the linkage assemblies and flexible arms resulting from these processes.
REFERENCES:
patent: 4949927 (1990-08-01), Madocks et al.
patent: 5348259 (1994-09-01), Blanco et al.
patent: 5624381 (1997-04-01), Kieturakis
patent: 5727569 (1998-03-01), Benetti et al.
patent: 5899425 (1999-05-01), Corey Jr. et al.
patent: 6361493 (2002-03-01), Spence et al.
Geyster Steve
Gleeson James
Haubert Thomas D.
Ibrahim Tamer
Prescott James A.
Cottingham John R.
Endoscopic Technologies, Inc.
Ferguson Michael P.
GSS Law Group
Smith Gregory Scott
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