Appeal No. 2000-1616
Application 08/698,054
sonar transducer, and an adjustable swivel joint (151)
supported by the frame and engaging the column (143), said
swivel joint comprising a ball (201) rotatably mounted in a
socket formed by two bracket plates (203) and an adjustment
mechanism (219) for adjusting the compressive force exerted by
the bracket plates on the ball to control the resistance of
the ball to rotation relative to the plates. The swivel joint
of Havins also includes a sleeve (199) secured to the ball for
receiving the column (143) and an adjustment mechanism (209,
211, 213) on each end of the sleeve for permitting or
restricting longitudinal movement of the column relative to
the swivel joint so as to allow for adjustment of the depth of
the transducer. As observed by the examiner, Havins lacks any
teaching of a trolling motor.
The examiner relies on Klammer to show that it was well
known at the time of appellants’ invention to mount a trolling
motor to a boat using a mounting apparatus of a type similar
to that in Havins, i.e., wherein the column of the trolling
motor is adjustably gripped by a portion (16) of the mounting
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