Telescopic tube

Details Telescopic tube Telescopic tube

2008-05-06

2010-10-19

Fineman, Lee (Department: 2872)

Optical: systems and elements

Compound lens system

Telescope

Reexamination Certificate

active

07817336

ABSTRACT:
A telescopic tube includes an upper section tube and a lower section tube that are provided coaxially with each other. A plurality of connecting rods is provided between the upper and lower section tubes in parallel to the axis of the tube. Via the connecting rods, the upper section tube or the lower section tube can slide telescopically in the axial direction of the tube, thereby extending or retracting the tube.

REFERENCES:
patent: 5130853 (1992-07-01), Sakurai
patent: 5192011 (1993-03-01), Fuchs
patent: 5224271 (1993-07-01), Langford et al.
patent: 6061175 (2000-05-01), Watters
patent: 6400503 (2002-06-01), Mickelson
patent: 2002/0039228 (2002-04-01), Watters
patent: 2217471 (1989-10-01), None

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