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.
Patent No.:
Date of Patent:
Jun. 13, 2000
Filed:
Apr. 02, 1998
William David Reents, Middlesex, NJ (US);
Lucent Technologies Inc., Murray Hill, NJ (US);
Abstract
A calibration sample for a particle analyzer comprises a deposition tube containing a known distribution of submicron size particles. The sample is produced using a microwave discharge in a microwave chamber to generate particles from a feedstock gas at subambient pressure, transporting the particles downstream from the microwave chamber and depositing them on the tube. The downstream tubing can then be removed, stored, transported and used as a calibration sample. In subsequent use, gas flowing through the tube entrains particles from the inner wall, producing a particle-laden gas whose particle size distribution and composition are identical to that produced originally--even after storage for months. The sample, requiring no special equipment, can be used at remote sites to prove-in and calibrate particle analyzers.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile