Measuring and testing – Gas analysis – By vibration
Reexamination Certificate
2007-03-20
2007-03-20
Williams, Hezron (Department: 2856)
Measuring and testing
Gas analysis
By vibration
C073S024050, C073S031060, C073S03200R, C073S054260, C073S054410, C073S061490, C073S064530, C073S579000
Reexamination Certificate
active
10739526
ABSTRACT:
A device for determining and/or monitoring at least one physical parameter of a medium, having at least one mechanically oscillatable unit and at least one drive-/receive unit. The drive-/receive unit excites the oscillatable unit to oscillate, or, it receives the oscillations of the oscillatable unit, as the case may be. The invention includes that in the drive-/receive unit at least one piezo-drive is provided, which has at least one exterior surface. The exterior surface is composed of at least two segments of different polarization, wherein the directions of polarization are directed essentially opposite to one another. The mechanically oscillatable unit is directly or indirectly connected with the exterior surface, so that the mechanically oscillatable unit is excited to a movement, or so that the movement of the mechanically oscillatable unit is received. The movement always has at least two different force components.
REFERENCES:
patent: 4811593 (1989-03-01), Miura et al.
patent: 4879909 (1989-11-01), Lew
patent: 4934194 (1990-06-01), Itoh et al.
patent: 4986134 (1991-01-01), Lew
patent: 5121658 (1992-06-01), Lew
patent: 6148665 (2000-11-01), Getman et al.
patent: 6326563 (2001-12-01), Takeuchi et al.
patent: 6386053 (2002-05-01), Takeuchi et al.
patent: WO 01/85236 (2001-11-01), None
Bacon & Thomas PLLC
Endress & Hauser GmbH & Co. KG
Miller Rose M.
Williams Hezron
LandOfFree
Device for determining and/or monitoring at least one... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Device for determining and/or monitoring at least one..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Device for determining and/or monitoring at least one... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3790510