Telescopic pipe structure for a marine light

Details Telescopic pipe structure for a marine light Telescopic pipe structure for a marine light

2009-03-19

2011-11-15

Dunwoody, Aaron (Department: 3679)

Pipe joints or couplings

Variable length

Telescopic with relative motion

C285S390000

Reexamination Certificate

active

08056936

ABSTRACT:
A telescopic pipe structure for a marine light includes a telescopic pipe and a positioning device. The telescopic pipe includes a second pipe and a fixed pipe. The positioning device is used to control the telescopic pipe in a fixed status or in an adjustable status. The positioning device includes a rotatable lid, a resilient sleeve, and a metallic ring. When the rotatable lid is turned clockwise or counterclockwise, the metallic ring will be pushed by the top of the fixed tube or returned to its original position by the resilient sleeve for controlling the engagement or disengagement of an contracted opening of the resilient sleeve and the second pipe so as to change the telescopic pipe in a fixed status or in an adjustable status.

REFERENCES:
patent: 5836620 (1998-11-01), Wang et al.

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