Rollerstand

Work holders – Work-underlying support – Movable roller

Reexamination Certificate

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Details

C269S047000, C269S052000, C269S060000, C269S061000, C269S282000, C269S2890MR, C248S269000, C248S430000

Reexamination Certificate

active

06988719

ABSTRACT:
A stand for movably supporting a workpiece is disclosed. The stand includes a base, a support and a plurality of roller assemblies. The support is releasably connected to the base for permitting the height of the stand to be altered. The roller assemblies are mounted on diverging surfaces which are in turn mounted at oblique angles relative to the support for permitting non-interfering movement of the workpiece relative thereto. Each roller assembly includes a sphere captured within a collar mounted on a selected one of the diverging surfaces for permitting free-rolling movement of the sphere relative to the collar and the workpiece.

REFERENCES:
patent: 2705119 (1955-03-01), Ingwer
patent: 2733330 (1956-01-01), Blewett
patent: 2893669 (1959-07-01), Kindorf
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patent: 3741509 (1973-06-01), Kelly
patent: 4335523 (1982-06-01), Bryant
patent: 4492354 (1985-01-01), Rice
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patent: 4699343 (1987-10-01), Handler et al.
patent: 5028149 (1991-07-01), Hardtke
patent: 5060907 (1991-10-01), Castano
patent: 5247976 (1993-09-01), Matthews
patent: 5299656 (1994-04-01), Grill
patent: 5337875 (1994-08-01), Lee
patent: 5435411 (1995-07-01), Borgatti
patent: 6179024 (2001-01-01), Yang
patent: 0018495 (2003-08-01), None

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