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:
Dec. 30, 1980
Filed:
Nov. 16, 1977
Wolfgang von Tluck, Olching, DE;
Siemens Aktiengesellschaft, Berlin & Munich, DE;
Abstract
An indicating device is disclosed for showing the level of a fluid in a container. A transparent rod having a sensing end is immersed in the fluid when the container is filled above a predetermined level. The sensing end is shaped to cause a substantially total reflection of a beam of light projected in the rod from an opposite end of the rod when the sensing end is not in contact with the flowable substance. A light source and photoelectric detector are arranged at the opposite end of the rod and a circuit is connected to the photoelectric detector for detecting when a predetermined amount of reflection occurs and also for preventing response of the device to slopping of the fluid to and fro in the container.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile