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:
Jun. 15, 1976
Filed:
Oct. 24, 1972
Robert E Sullivan, Houston, TX (US);
Other;
Abstract
A pump control comprising a control circuit having a timer which periodically closes the control circuit and hence an energizing electric circuit to an electric motor driving the pump, for predetermined intervals of time, and a float assembly having a vertically movable float surrounded by a vertical guide and shield having openings adjacent its bottom. Inlet and outlet lines extend upwardly through its bottom and establish an upward liquid level in the float chamber and provide support. A reduced flow drain line at the bottom of the float chamber drains liquid to establish a lower liquid level. A removable top closes the float chamber, which top carries a switch actuated by a float stem extending through it so that movement of the float in response to liquid levels closes the control circuit and thus the energizing circuit to the electric motor and opens the circuit to the timer when the float is in an upper position, and opens the control circuit to the energizing circuit to the motor and closes the circuit to the timer when the float is in a lower position. The float is located out of the path of fluid flowing into and through the float chamber and is shielded by the vertical guide so that surges or flow of gas do not affect operation of the float.