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:
Nov. 29, 2005
Filed:
Jun. 04, 2004
Joseph Baron, Huntington Beach, CA (US);
David C. Abbe, El Cajon, CA (US);
Joseph Baron, Huntington Beach, CA (US);
David C. Abbe, El Cajon, CA (US);
Other;
Abstract
A gauge is disclosed for indicating a level of a liquid in a tank including a display device and a control unit coupled thereto. The display device includes multiple light-emitting elements. The control unit receives a liquid level signal, measures a magnitude of the liquid level signal, and activates a number of the light-emitting elements dependent upon the magnitude. In one embodiment the control unit receives a reset signal and performs a calibration routine in response. The gauge may include a housing and a cap portion attached to the housing. The display device and the control unit may be positioned within the housing. The gauge may include conveying means (e.g., an array of light pipes) for conveying light emitted by each of the light-emitting elements through an outer side surface of the cap portion. A method is described for indicating a level of a liquid in a tank.