James A Holt

US Patent:

44039700, Sep 13, 1983

Filed:

Jul 30, 1981

Appl. No.:

6/288469

Inventors:

Robert G. Dretzka - South Milwaukee WI
James L. Holt - Bristol WI
Guy D. Payne - Lake Villa IL

Assignee:

Outboard Marine Corporation - Waukegan IL

International Classification:

B63H 2308

US Classification:

440 75

Abstract:

Ignition pulses derived from an engine ignition coil primary are fed to the input of an ignition interruption circuit that employs an integrated circuit timer. The state of the output terminal of the timer is governed by an RC time constant circuit and by trigger signals supplied by a trigger circuit in response to occurrence of each ignition pulse. The timer output is coupled to the gate of an SCR which when it receives gate current as a result of the timer output being in a high state becomes conductive and bypasses ignition pulses to ground to thereby lower engine rpm to a preset minimum in which case gate current is removed and at least enough ignition pulses are allowed to be unbypassed for keeping the engine running above stalling speed. The timer, in effect, compares the interval between pulses with its time constant. When the intervals are longer than the time constant period the timer output remains low and provides no gate current, but when the opposite condition exists gate current is supplied until the intervals between ignition pulses equal or exceed the time constant period.

US Patent:

42626226, Apr 21, 1981

Filed:

Mar 30, 1979

Appl. No.:

6/025343

Inventors:

Robert G. Dretzka - South Milwaukee WI
James L. Holt - Bristol WI
Guy D. Payne - Lake Villa IL

Assignee:

Outboard Marine Corporation - Waukegan IL

International Classification:

B63H 506

US Classification:

440 1

Abstract:

Disclosed herein is a marine propulsion device and apparatus and methods for assisting transmission shifting thereof. The marine propulsion device includes an internal combustion engine and a reversing transmission having a pair of bevel gears and a clutch dog movable between a neutral position out of engagement with the bevel gears and forward and reverse drive positions in full engagement with one of the bevel gears. The marine propulsion device also includes a shift assistance arrangement included in a shift mechanism for axially moving the clutch dog between the neutral and drive positions, and which includes a load sensing lost motion shift lever arrangement having a first switch which is actuated when the resistance to axially moving the clutch dog into a drive position exceeds an upper limit. The shift assistance arrangement also includes an ignition interruption circuit responsive to actuation of the first switch for selectively interrupting the ignition of the internal combustion engine to reduce the engine torque transmitted to the bevel gears to effect relative angular displacement of the clutch dog and the bevel gears to thereby assist the shift mechanism in moving the clutch dog into and out of a drive position. The ignition interruption circuit includes a control circuit having a first timer for providing a plurality of successive timed cycles, each cycle including an ignition-kill interval and an ignition-on interval, and also having a second timer for establishing an overall cycle during which the first timer is operative, subject to the first switch.

Address:

913 Stonebrook Mnr Ct, Saint Louis, MO 63122

VIN:

3N1BC13E27L394324

Make:

NISSAN

Model:

VERSA

Year:

2007