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:
Sep. 02, 1986
Filed:
May. 08, 1985
Rudolph Bergsma, Ann Arbor, MI (US);
Hi-Stat Michigan Manufacturing Co., Inc., Ann Arbor, MI (US);
Abstract
A float operated liquid level sensing switch for horizontal mounting in the sidewall of a container is disclosed. The switch can be inserted into an aperture in the sidewall regardless of its circumferential orientation with full assurance that its float is properly oriented to perform the level sensing function. The float is tubular and contains a weighting means which orients the float to a unique circumferential orientation. This positions a magnet on the float to a unique operating range. A reed switch is contained horizontally within a body portion of the switch and is surrounded by the float. The magnet is disposed to operate in a vertical plane relative to the reed switch and when the level drops to a certain level, the float similarly drops causing the magnet to activate the reed switch. In order to attain overlying relationship of the magnet to the reed switch, a pendulum weight is also included on the float diametrically opposite the magnet. The switch and electrical circuitry are isolated from the liquid whose level is being sensed.