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. 28, 1989
Filed:
Mar. 25, 1987
Albert D Ehrenfried, Maynard, MA (US);
Michael D Dabrowski, North Grosvenordale, CT (US);
Metritape, Inc., Littleton, MA (US);
Abstract
A distributed resistance material level sensor which is sensitive to actuation pressure of the material in which the sensor is immersed, and ruggedized to provide protection of the sensor by forces encountered during handling and during use. The sensor includes an elongated strip having sensitive front and back surfaces and respective insensitive edges extending along the length of the sensor. An elongated protective element is provided on each edge of the sensor, the element being retained on a respective insensitive edge and having a cross-sectional extent to provide mechanical contact and abrasion protection.