The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jul. 02, 1996

Filed:

Mar. 23, 1994
Applicant:
Inventors:

Stephen Arnold, New York, NY (US);

Piers Hendrie, Austin, TX (US);

Burt V Bronk, Abingdon, MD (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C12M / ; C12Q / ; G01N / ; H01J / ;
U.S. Cl.
CPC ...
435 34 ; 250282 ; 250283 ; 250292 ; 250293 ; 422 98 ; 436153 ; 436181 ; 4352862 ; 4352871 ;
Abstract

A device and method is described for joining two or more small particles to form a composite levitated particle. The size of the particles joined may be in the range 0.1 micrometer to 30 micrometers. The device utilizes a linear quadrupole electrodynamic levitator with storage rings at right angles to the levitating electrodes. The storage rings move the charged particles to desired positions with DC electric fields. Particles with different sign but unequal charge are then joined by means of displacements caused by the DC fields of the storage rings. The initial particles and the final composite particle are retained free of any contact with substrate in the levitating fields of the linear levitator.


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