Joints and connections – Biased catch or latch – Leaf spring
Reexamination Certificate
2001-06-25
2004-01-13
Browne, Lynne H. (Department: 3679)
Joints and connections
Biased catch or latch
Leaf spring
C403S009000, C403S109300, C403S109800, C403S298000
Reexamination Certificate
active
06676326
ABSTRACT:
BACKGROUND OF THE INVENTION
Field of the Invention
The invention herein relates to a square lamp post insertional conjoinment structure in which a slip-mount tube has disposed at one end an internal binding sleeve, an insertional conjoinment section of a stepped arrangement is formed between it and the slip-mount tube at two opposing sides and, furthermore, a spring is installed at each of the insertional conjoinment sections; a casing tube has engagement blocks aligned with and capable of pressing inward against the springs such that after the casing tube is fitted onto the slip-mount tube, the springs rebound to their original positions, locking the casing tube onto the slip-mount tube and thereby achieving the fixed coupling of the casing tube and the slip-mount tube.
SUMMARY OF THE INVENTION
The primary objective of the invention herein is to provide a square lamp post insertional conjoinment structure comprised of a slip-mount tube and a casing tube fitted onto the slip-mount tube, wherein the said slip-mount tube has disposed at one end an internal binding sleeve and, furthermore, an insertional conjoinment section of a stepped arrangement is formed between the exterior of the internal binding sleeve and the interior of the slip-mount tube at two opposing sides; a recess is formed in each of insertional conjoinment sections and, furthermore, a spring is riveted to the bottom of each recess; the casing tube has engagement blocks aligned with the springs such that when the said casing tube is fitted onto the slip-mount tube, its engagement blocks press inward against the springs to facilitate the sleeving on of the casing tube; after the casing tube engagement blocks pass the springs, the springs rebound to their original positions, locking the casing tube onto the slip-mount tube and thereby achieving the fixed coupling of the casing tube and the slip-mount tube.
REFERENCES:
patent: 1824192 (1931-09-01), Bouma
patent: 2538448 (1951-01-01), Finley
patent: 4068333 (1978-01-01), Gutner
patent: 4299421 (1981-11-01), Bontrager
patent: 4431331 (1984-02-01), Brody
patent: 4819293 (1989-04-01), Nicholson
patent: 5127762 (1992-07-01), Havlovitz
patent: 5144780 (1992-09-01), Gieling et al.
patent: 5387048 (1995-02-01), Kuo
patent: 5829910 (1998-11-01), Kameyama
Browne Lynne H.
Thompson Kenn
Troxell Law Office PLLC
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