Electricity: motive power systems – Impact – mechanical shock – or vibration-producing motors
Reexamination Certificate
2002-11-01
2004-01-20
Tamai, Karl (Department: 2834)
Electricity: motive power systems
Impact, mechanical shock, or vibration-producing motors
C318S037000
Reexamination Certificate
active
06680591
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates generally to vibratory phase angle monitoring and, more specifically, to an apparatus for phase angle monitoring of a plurality of vibrating machines.
BACKGROUND OF THE INVENTION
It is known that in the normal operation of a vibratory machinery, harmful vibrations may develop which may damage the machinery and/or the supporting structure, such as a concrete factory floor. On many vibratory machines, these harmful vibrations are controlled for frequency and amplitude in order to avoid building into potentially damaging vibrations. Furthermore, these machines may contain vibration damping structures, as are well known in the art, to absorb any vibrations before they build to harmful levels.
For example, one such system for controlling a vibratory apparatus is described in U.S. Pat. No. 5,054,606. In the disclosed system, an accelerometer is provided for sensing the acceleration of vibratory movement of the vibratory machine. The signal generated by the accelerometer is transmitted to a control, which is capable of modifying the amplitude or the frequency of the vibratory movement, thereby regulating the vibratory machine.
However, in a location where there is a plurality of vibrating machines in close proximity, the vibrations generated by the machines may naturally synchronize to form a harmful resultant vibration. Thus, wherein the individual vibrations produced by any individual machine may be controlled, the resulting product of multiple machines in phase may produce damaging vibrations to the surrounding area. Accordingly, it may be desirable to monitor the vibrations produced by various machines in order to properly synchronize their vibrations and prevent the negative impact on the surrounding area.
REFERENCES:
patent: 3477281 (1969-11-01), Helmuth
patent: 5054606 (1991-10-01), Musschoot
patent: 6377900 (2002-04-01), Ueno et al.
patent: 6469417 (2002-10-01), Shibatani
Wilcoxon Research, Model P702B General Purpose Power Unit/Amplifier, 1 page, www.wilcoxon.com.
Laurel Electronics, Inc., Phase Angle & Duty Cycle Meters, 6 pages, http://www.laurels.com/phase.htm.
Knutson Rusty Roger
Steffes, Jr. Edward Charles
General Kinematics Corporation
Jones Judson H.
Marshall & Gerstein & Borun LLP
Tamai Karl
LandOfFree
Apparatus for phase angle monitoring of a plurality of... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus for phase angle monitoring of a plurality of..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for phase angle monitoring of a plurality of... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3253930