Length-adjustable column for tables, chairs or the like

Details Length-adjustable column for tables, chairs or the like Length-adjustable column for tables, chairs or the like

1993-01-14

1994-08-02

Reese, Randolph A.

Joints and connections

Interfitted members

Including discrete retainer

403109, 403 83, A47B 900, A47C 300, F16F 900

Patent

active

053339681

ABSTRACT:
A length-adjustable column for chairs, tables or the like has a length-adjusting element and a stand pipe. The stand pipe is in the form of a composite pipe and has an outer tube and an inner guide tube, which are connected with each other by guide webs. On the internal surface of the inner guide tube, partial cylinder surfaces are produced by chip removal as guide surfaces for the cylindrical housing of the length-adjusting element.

REFERENCES:
patent: 3711054 (1973-01-01), Bauer
patent: 4899969 (1990-02-01), Bauer et al.
patent: 4979718 (1990-12-01), Bauer et al.
patent: 5131615 (1992-07-01), Hosan et al.
patent: 5152646 (1992-10-01), Bauer

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