Horology: time measuring systems or devices – Controlled by a disparate device – Engine
Reexamination Certificate
2006-12-26
2006-12-26
Cuneo, Kamand (Department: 2841)
Horology: time measuring systems or devices
Controlled by a disparate device
Engine
C368S008000, C324S402000, C377S016000
Reexamination Certificate
active
07154814
ABSTRACT:
A digital engine operating time measuring apparatus for an internal combustion engine. The apparatus is powered by a magneto of the engine and accumulates engine operating time only when the engine is operating. The apparatus includes power regulation circuitry including a pair of terminals coupled to the engine magneto. The power regulation circuitry converts a time varying electrical signal generated by the magneto when the engine is operating to a low voltage DC signal. The apparatus further includes digital circuitry coupled to an output of the power regulation circuitry for calculating accumulated engine operating time. The digital circuitry is powered by the low voltage DC signal of the power regulation circuitry and only accumulates engine operating time upon sensing the low voltage DC signal. The apparatus further includes a display coupled to the digital circuitry for displaying accumulated engine operating time as calculated by the digital circuitry.
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Brochure: Curtis Instruments, Inc.—700 Series Solid State Hour Meters&Counters, 7 pgs, Jun. 2002.
Technical Data 646: ENM Company—Engine Powered Hour Meter, Series T60, 2 pgs., 2002.
Printout: ENM Company—LCD Hour Meter catalog, www.enmco.com, 2 pgs, publication date unknown.
Printout: SenDEC Corporation—Technical Data Sheet 806-10x Surface Mount, www.sendec.com, 4 pgs, publication date unknown.
Printout: Honeywell/Hobbs Corp.—LCD Hour Meters, www.content.honeywell.com/sensing/hss/hobbcorp, 3 pgs., publication date unknown.
Cuneo Kamand
Delta Systems, Inc.
Kayes Sean
Tarolli, Sundheim Covell & Tummino LLP
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