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. 16, 1989
Filed:
Jan. 27, 1987
Applicant:
Inventor:
Hamid Shirkhan, Watertown, MA (US);
Assignee:
Fluid Management Systems, Watertown, MA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B67D / ;
U.S. Cl.
CPC ...
222 52 ; 318685 ; 604 67 ;
Abstract
A controlled fluid delivery system comprising a pump and electric drive apparatus which provides precise metering of the fluid, and includes an error correction apparatus by which the system errors may be compensated and calibrated to provide a precisely controlled fluid flow at a continuous speed or small quantities of the fluid by intermittent system operations. Furthermore, the apparatus is modular and may accommodate a variety of mechanical pumps. The controlled fluid delivery system communicates with other apparatus such as measurement devices and process control equipment through standard binary communication lines.