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:
Oct. 05, 1993
Filed:
May. 23, 1991
Verl Law, Emmett, ID (US);
Vemco, Inc., Emett, ID (US);
Abstract
A hollow tube attachable at one end to a container of fluid is provided at the other end with an end cap in which is formed a fluid discharge opening through which to transfer fluid. The end cap includes a first portion inserted into the tube, while a second portion remains exterior thereto. A slide valve on the exterior of the tube is biased into a closed position, precluding fluid transfer until the discharge opening is inside a receiving vessel. An air vent passageway in the form of an air vent recess in the outer surface of the first portion of the end cap communicates between the interior of the container and the exterior of the fluid conduit. When the receiving vessel is filled, fluid in the receiving vessel closes entry to the air vent passageway, terminating air flow into the container and stopping fluid flow through the conduit. Capillary sections of reduced cross-sectional area relative that of the air vent passageway are located at either end of the air vent recess. One is formed as an outer air vent aperture through the wall of the tube at the end of the air vent recess remote from the container; the other is formed in the outer surface of the first portion of the end cap at the opposite end of the air vent recess.