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. 31, 1982
Filed:
Apr. 28, 1981
Applicant:
Inventor:
Robert Brownlee, Los Altos Hills, CA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
210101 ; 2101982 ;
Abstract
Pump module for liquid chromatography for delivering the mobile phase to a separation column under high pressure including a cylinder containing a plunger and forming a syringe pump, a seal disposed between the plunger and cylinder, two positive action valves connect to the output of the pump either to a reservoir of said mobile phase or to a sample injection valve. The pump is dimensioned to accommodate most chromatographic analysis i.e. from about 10 ml to 40 ml.