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:
Aug. 08, 1995
Filed:
Oct. 15, 1993
Dennis R Mueller, Granite Bay, CA (US);
Donald R Sandell, San Jose, CA (US);
C & K Systems, Inc., Folsom, CA (US);
Abstract
A reed switch assembly and method of assembling it are disclosed. A preferred embodiment of the reed switch assembly includes an elongate hollow housing having an opening at one end thereof for access to a cavity therein. A reed switch is positioned completely inside the cavity. The first and second connecting leads of the reed switch are bent so that they are each substantially parallel to their respective first and second reeds and so that they lie in planes that are not coplanar with the flat portions of the first and second reeds. The first connecting lead has a length that is long enough so that it extends at least half-way over the reed switch body towards the second connecting lead. A first wire is attached to the first connecting lead at a connection point that is spaced apart from the free end of the first connecting lead a distance equal to at least one-half the total length of the first connecting lead. An ameliorator magnet is mounted on the first connecting lead between the free end and the connection point to create a magnetic circuit between itself and the first and second reeds in order to reduce the magnetic flux density required to close the first and second reeds. A substantially flat, circular, blocking member is positioned inside the cavity between the reed switch body and the housing opening. The blocking member provides support for the reed switch and substantially centers the reed switch in the housing cavity. Fillant is positioned in the cavity at the housing opening for substantially closing the housing opening.