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:
Aug. 19, 1997
Filed:
Sep. 11, 1996
Applicant:
Inventors:
Craig A Scheer, Ceres, CA (US);
Bradley W Scheer, San Jose, CA (US);
Assignee:
VLSI Standards, Inc., San Jose, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
356 37 ;
Abstract
A condensation nucleus counter includes a saturator and a condenser with a thermoelectric device (TED) to simultaneously cool the condenser and heat the saturator. A controller is featured which operates the TED to maintain the temperature differential between the saturator and the condenser to within .+-.1.5.degree. C. at steady state. The controller may be set by a user to operate at any desired setpoint temperature.