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:
Aug. 10, 1993
Filed:
May. 14, 1992
Alberto G Domenge, Tecamachalco 53950 Edo. de, MX;
Other;
Abstract
A centrifugal suction pump includes a vertically disposed support tube having upper and lower ends, a liquid check valve on the lower end of the support tube, and a hollow rotatable hub mounted on the upper end of the support tube. A number of horizontally expeller tubes are connected to the hub and extend radially therefrom. A check valve is associated with the hub for venting the hub to ambient atmosphere and a priming conduit is connected to the support tube for filing the latter and the expeller tubes with liquid. A stopper is associated with each expeller tube and has an operative position that seals the expeller tube. Rotation of the expeller tubes causes radial displacement of liquid therein which effects movement of the stoppers to an inoperative position at which the tubes are unsealed and liquid is pumped up the support tube.