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:
Jun. 11, 1996
Filed:
May. 25, 1995
Frans P Lautzenhiser, Noblesville, IN (US);
Dwadasi H Sarma, Kokomo, IN (US);
Delco Electronics Corporation, Kokomo, IN (US);
Abstract
An inductive sensing element for sensing displacement of a resilient flexible beam or diaphragm. The inductive sensing element comprises an open faced member and a closed faced member one of which is attachable to the flexible beam and the other of which is attachable to a stationary member. The parameters of both the open and closed faced members are selected so that the self-inductance of the open faced member is determined by the overall distance separating the members. Both the open and closed faced members have a magnetic coating and the open face member further comprises an electrically conductive coating arranged in a predetermined pattern on its magnetic coating. The self- inductance of the open faced member, in particular, the predetermined pattern, is dependent upon the magnetic coating on the open faced member and the magnetic contribution that the magnetic coating of the closed faced member makes to the magnetic coating of the open faced member which, in turn, is dependent upon the overall distance separating the open and closed faced members.