Hinge mechanism

Details Hinge mechanism Hinge mechanism

2005-11-28

2008-12-02

Olson, Lars A (Department: 3617)

Ships

Spars

Masts and masting

C052S116000

Reexamination Certificate

active

07458328

ABSTRACT:
A hinge mechanism comprises first and second chock plates and an adjustable shaft. Each of the chock plates includes an aperture in the form of a figure of eight, the first and second circular portions of which are similar and are connected by a neck portion of a width less than the diameter of the circular portions. The shaft is longitudinally adjustable between a first retracted position in which the sections of the shaft aligned with each of the chock plates have a cross-section which corresponds to the circular portion of the aperture and a second extended position in which the sections of the shaft aligned with each of the chock plates have a cross-section of a diameter which is less than the width of neck portion.

REFERENCES:
patent: 4016823 (1977-04-01), Davis
patent: 4020606 (1977-05-01), Pratt
patent: 4121530 (1978-10-01), Arce
patent: 4592177 (1986-06-01), Pratt
patent: 4875424 (1989-10-01), Baldwin
patent: 5058336 (1991-10-01), Jenvey
patent: 5280760 (1994-01-01), Edwards
International Preliminary Report on Patentability dated Oct. 25, 2006.
International Search Report from EPO dated Aug. 2, 2006.

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