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:
Jul. 02, 1991
Filed:
May. 21, 1990
William D Dickinson, Medina, NY (US);
James Mirand, Medina, NY (US);
American Sigma, Inc., Medina, NY (US);
Abstract
A self-cycling pump apparatus wherein a valve functioning as a pump cycling device is connected to the pump so that it may be lowered together with the pump to a submerged position in a sub-surface fluid for lifing the sub-surface fluid to ground level. Separate drive air supply and exhaust tubes are connected to the cycling valve, the valve permitting the drive air supply line to communicate with a gas chamber of the pump during a pressurizing phase of the pump cycle, and alternately permitting the exhaust tube to communicate with the gas chamber of the pump during a venting phase of the pump cycle. A timing device for timing the sequence of the cycle phases is connected with the cycling valve. The timing device may be mounted adjacent the cycling valve, so that the pump, the cycling valve and the timing device may be lowered to the submerged operating position as a single unit.