Liquid purification or separation – Processes – Making an insoluble substance or accreting suspended...
Reexamination Certificate
2005-08-16
2005-08-16
Lawrence, Frank M. (Department: 1724)
Liquid purification or separation
Processes
Making an insoluble substance or accreting suspended...
C210S748080, C210S095000, C209S155000, C422S128000, C204S158200
Reexamination Certificate
active
06929750
ABSTRACT:
The present invention provides a device and a method for separating particles from fluids using ultrasound, laminar flow, and stationary wave effects comprising a micro-technology channel system with an integrated branching point or branching fork, and a single ultrasound source. One of the characteristics of the invention is that the single ultrasound source, which generates the standing waves, excites the complete structure including the channel system. No special reflectors or the like are needed. Extremely thin dividers can separate the flow, thereby enhancing the effectiveness of the device. The device could be manufactured in silicon and the ultrasound energy could preferably be delivered by a piezoelectric element.
REFERENCES:
patent: 5085783 (1992-02-01), Feke et al.
patent: 5164094 (1992-11-01), Stuckart
patent: 5626767 (1997-05-01), Trampler et al.
patent: 5803270 (1998-09-01), Brodeur
patent: 6649069 (2003-11-01), DeAngelis
patent: 2002/0154571 (2002-10-01), Cefai et al.
patent: 0773055 (2003-05-01), None
patent: 11-197491 (1999-07-01), None
patent: WO 9850133 (1998-11-01), None
patent: WO 0004978 (2000-02-01), None
IBM Technical Disclosure Bulletin, vol. 25, No. 1, Jun. 1982, H.W. Curtis et al, “Ultrasonic Continuous Flow Plasmaheresis Separator” p. 192-p. 193.
Allers Mats
Jönsson Henrik
Laurell Thomas
Nilsson Andreas
Persson Hans W.
Erysave AB
Ladas & Parry LLP
Lawrence Frank M.
LandOfFree
Device and method for separation 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 and method for separation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Device and method for separation will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3471410