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:
Mar. 08, 1994
Filed:
Jun. 02, 1992
Applicant:
Inventors:
Robert R Mantell, Arlington Heights, IL (US);
Albert Nowesielski, Roselle, IL (US);
Charles Zander, Grayslake, IL (US);
Assignee:
Northgate Technologies, Inc., Arlington Heights, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61M / ;
U.S. Cl.
CPC ...
604 26 ; 604 23 ;
Abstract
A pressure controlling system for an insufflator includes a plurality of parallel connected, solenoid controlled valves. Each valve has in series therewith a gas flow limiter with the limiters arranged in digital succession. The valves are in parallel with one another and in series with the gas flow line so that solenoid opening of one or more of the valves controls gas flow in an on-off fashion with gas flow continuing through the respective flow limiting means to determine total flow rate in a digital manner.