Hinge joint for cylinder actuators of watercraft trim tabs,...

Details Hinge joint for cylinder actuators of watercraft trim tabs,... Hinge joint for cylinder actuators of watercraft trim tabs,...

2009-04-27

2011-11-01

Avila, Stephen (Department: 3617)

Ships

Hull or hull adjunct employing fluid dynamic forces to...

Movably mounted hull portion or hull adjunct

C114S286000

Reexamination Certificate

active

08047152

ABSTRACT:
A joint connecting a cylinder actuator of a trim tab to a watercraft includes a first part couplable to a wall of the watercraft, a second part couplable to the cylinder actuator, a pin coupled to one part and a pin seat formed in the other part. In one embodiment, the seat is defined by a portion of a circular cylindrical surface having an opening on one side. The surface portion has an angular extension larger than 180°, and the pin has a correspondingly cylindrical portion with a laterally flattened surface for introduction into the opening of the pin seat. The opening of the cylindrical pin seat and the flattened portion/s of the pin are in such reciprocal angular positions that the two joint parts are operably connectable and disconnectable by disposing them in a relative angular position, which cannot be attained in the mounted operating condition.

REFERENCES:
patent: 3391667 (1968-07-01), Lo Bue
patent: 3577948 (1971-05-01), Frey
patent: 4363249 (1982-12-01), Stugart
patent: 4600395 (1986-07-01), Pichl
patent: 5113780 (1992-05-01), Bennett et al.
patent: 5474013 (1995-12-01), Wittmaier
patent: 5524567 (1996-06-01), Astley et al.
patent: 6493905 (2002-12-01), Stettler
patent: 2007/0137550 (2007-06-01), Davis et al.

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