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:
May. 08, 1979
Filed:
May. 22, 1978
Applicant:
Inventor:
Donald C Olson, Houston, TX (US);
Assignee:
Shell Oil Company, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
204 / ;
Abstract
An improved galvanic detector for measuring trace amounts of tetralkyl lead in gasoline having a sample holder mounted in a turntable. A disc of dried porous material is placed in the holder and a small sample of gasoline placed on the porous material and allowed to evaporate for a pre-set time to flash off the olefins. The turntable is then rotated to pass the disc over the sensing electrode of the galvanic cell and the peak value of current signal produced by the galvanic cell is measured and recorded.