Machine element or mechanism – Gearing – Interchangeably locked
Reexamination Certificate
2006-06-13
2008-12-09
Pang, Roger (Department: 3681)
Machine element or mechanism
Gearing
Interchangeably locked
C074S473120
Reexamination Certificate
active
07461569
ABSTRACT:
A device for engaging power takeoffs, primarily used to drive a load from the engine of a vehicle, has an electromagnet with a single winding of small size which is driven by a microprocessor system in PWM mode allowing to differentiate the current intensity of the engaging phase and of the phase of maintaining said engaging. The control system monitors, without the aid of external sensors, parameters such as electromagnet current, power supply and electromagnet voltage, electromagnet winding resistance, electromagnet winding inductance. From these parameters, the system is able to determine the engaging or unengaging position of the power takeoff, and it is able automatically to uncouple if the monitored parameters do not fall within the expected ranges, simultaneously notifying the user of the protective intervention.
REFERENCES:
patent: 3464277 (1969-09-01), Longshore
patent: 4273001 (1981-06-01), Miyahara et al.
patent: 4534455 (1985-08-01), Fujikawa et al.
patent: 5287939 (1994-02-01), Fernandez et al.
patent: 6202812 (2001-03-01), Semke
patent: 6792821 (2004-09-01), Yamamoto
patent: 6874750 (2005-04-01), Muraji
patent: 2002/0096009 (2002-07-01), Yamamoto et al.
patent: 2003/0080306 (2003-05-01), Yoeda et al.
patent: 2003/0084860 (2003-05-01), Haghgooie et al.
patent: 2005/0279607 (2005-12-01), Fusegi
patent: 3828707 (1989-11-01), None
patent: 1176328 (2002-01-01), None
patent: 2084280 (1982-04-01), None
OMFB S.p.A. Hydraulic Components
Pang Roger
Shoemaker and Mattare
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