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:
Sep. 24, 2002
Filed:
Nov. 27, 2000
Peter A. Weise, Attleboro, MA (US);
Chris D. Wagner, Pawtucket, RI (US);
Thomas R. Maher, Rehoboth, MA (US);
Other;
Abstract
A port fitting ( ) is formed with a closed, pedestal end forming a diaphragm ( ) on which a strain gauge sensor ( ) is mounted. A support member ( ) is received on the pedestal end and is formed with a flat end wall ( ) having an aperture ( ) aligned with the sensor. A portion of a flexible circuit assembly ( ) is bonded to the flat end wall. An electronics chamber is formed in a connector ( ) which is inverted and maintained at a selected height adjacent to the flat end wall of the support member to facilitate soldering of the flexible circuit to terminals ( ) in the connector and electronic components to the flexible circuit. The port fitting, when assembled to the support member, is also maintained at the selected height adjacent to the inverted connector to facilitate wire bonding the sensor to the bonded portion of the flexible circuit. The connector ( ) is then turned over, bending the flexible circuit assembly ( ) into a generally U-configuration, and attached to the support member. In one embodiment, as a last step in assembling the transducer, a tubular outer housing ( ) is fitted over the connector/support member sub-assembly and its bottom portion is welded to a support flange of the port fitting while its top portion places a selected load on an O-ring ( ) received about the connector as well as internal components of the transducer.