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:
Dec. 25, 1990
Filed:
Feb. 15, 1989
Jack E Meyer, Dallas, TX (US);
Thomas C Thompson, McKinney, TX (US);
Tamera L Clark, McKinney, TX (US);
Andrew P Johnson, Garland, TX (US);
Don M Killman, Balch Springs, TX (US);
Quest Medical Inc., Dallas, TX (US);
Abstract
An apparatus for rate controlled gravity drip delivery of a liquid from a replaceable storage container to a delivery site includes a first mount for removably suspending the container at a first elevation higher than the site. A second mount is located above the site, but at a second elevation below the first elevation by a predetermined amount. The second mount carries an intersurface comprising a venting tubing connector having an outlet into a delivery conduit extending to the site. A metering tube of predetermined flow resistance substantially higher than that of the delivery conduit extends from the container at one end and is releasably secured to the connector at its other end to define a two part flow path from the container to the site through the metering tube and delivery conduit. The venting of the connector subjects the fluid at the connector to the same ambient pressure as the fluid in the container so that the rate of delivery is substantially predetermined by the difference in the first and second elevations and flow resistance of the metering tube.