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. 01, 2019
Filed:
Sep. 27, 2018
Applicant:
Nri R&d Patent Licensing, Llc, San Antonio, TX (US);
Inventor:
Lester F. Ludwig, San Antonio, TX (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01L 1/00 (2006.01); B01L 3/00 (2006.01); B01L 3/02 (2006.01); F16K 31/04 (2006.01);
U.S. Cl.
CPC ...
B01L 3/567 (2013.01); B01L 3/0203 (2013.01); B01L 3/569 (2013.01); F16K 31/041 (2013.01); B01L 2300/0663 (2013.01); B01L 2300/0867 (2013.01); B01L 2400/0622 (2013.01); B01L 2400/0644 (2013.01); Y10T 137/4456 (2015.04); Y10T 137/85954 (2015.04);
Abstract
A hand-rotatable motorized-aperture plug arrangement for use as a stopcock in articles of traditional and legacy laboratory glassware of arbitrary complexity. The hand-rotatable plug additionally comprises a longitudinally-movable gate whose gate position is changed by a stepper or D.C. electrical motor. As the gate position is changed, the amount of flow can be varied. Hand-rotation operation of the plug itself can be used to force flow turn-off. The gate position can be monitored by a sensor and can be computer-controlled for use with an article of laboratory glassware for controlling and/or directing the flow of chemical materials.