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:
Mar. 24, 1987
Filed:
May. 29, 1986
Stephen P Johnston, Detroit Lakes, MN (US);
S. J. Electro Systems, Inc., Detroit Lakes, MN (US);
Abstract
Alternator circuit arrangement (20) for controlling the electrical energization of multiple load devices such as two pump motors (41,42) on an alternating basis so as to maintain the level of a liquid (86) in a container (84) within a predetermined range. The alternator circuit arrangement (20) further including an RC circuit (54) having a capacitor (62) for discharging through a normally closed switch (50b) which is opened during energization of the pump motors (41,42) so as to energize a bi-stable relay (52) which in turn interconnects alternate ones of the pump motors (41,42) to the alternator circuit (20) such that upon detection of the liquid (86) at an intermediate level (96) alternate ones of the pumps (41,42) are energized.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile