Electricity: motive power systems – Motor-reversing – Periodic- or intermittent-reversing
Reexamination Certificate
2005-02-22
2005-02-22
Leykin, Rita (Department: 2837)
Electricity: motive power systems
Motor-reversing
Periodic- or intermittent-reversing
C318S001000, C318S002000, C345S161000, C463S037000
Reexamination Certificate
active
06859003
ABSTRACT:
Force in a direction opposite to an operating direction imparted from a motor to a rotary knob is increased gradually at the start of an operation to an upper limit value with the increase of a rotating angle of the rotary knob in the same direction as the operating direction, and is gradually decreased at the finish of the operation from the upper limit value to 0 with the increase of the rotating angle in the opposite direction to the operating direction. In consequence, when the operation is stopped before or at the time at which force in the opposite direction to the operating direction imparted to the rotary knob reaches the upper value, the rotary knob returns to the angle at which it has existed before operated, and can come to halt without oscillation.
REFERENCES:
patent: 3869121 (1975-03-01), Flavell
patent: 5959613 (1999-09-01), Rosenberg et al.
patent: 6067077 (2000-05-01), Martin et al.
patent: 6079513 (2000-06-01), Nishizaki et al.
patent: 6278439 (2001-08-01), Rosenberg et al.
patent: 6380925 (2002-04-01), Martin et al.
patent: 6636197 (2003-10-01), Goldenberg et al.
Alps Electric Co. ,Ltd.
Brinks Hofer Gilson & Lione
Leykin Rita
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