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:
Oct. 17, 1978
Filed:
Jul. 18, 1977
Earl James Genz, Des Plaines, IL (US);
Illinois Tool Works Inc., Chicago, IL (US);
Abstract
An improved linear position sensor that utilizes a pair of elongated magnetically permeable tubular sensing elements and a pair of elongated magnets positioned to move with respect to the tubular sensing elements is disclosed. The sensor is provided with a housing structure having a pair of guide slots which guide a support plate for the tubular sensing elements, and a second pair of guide slots formed at right angles to the first pair of guide slots, which guide a pair of wings on the control member that carries the magnets, so that the elongated tubular sensing elements and the magnetic elements are accurately retained in place with respect to each other. The housing is formed with channels in its interior which receive a pair of elongated coil springs that bias the member. The structure is designed for ease of assembly with snap-together sub-assemblies.