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:
Dec. 03, 1996
Filed:
Sep. 22, 1995
Albert D Fisher, LaHarpe, KS (US);
William E Fritsche, Iola, KS (US);
Midland Brake, Incorporated, Kansas City, MO (US);
Abstract
The invention presented is a tapered joint thread system, especially for use in a fluid handling device, and a fluid handling device containing the inventive tapered joint thread system. More particularly, the invention presented includes a plastic female end segment having an opening sized to receive a male fitting, and having a first tapered segment which tapers from a first internal diameter to a second internal diameter, and which is gauged from the opening of the female end segment to a controlled depth; the female end segment also has an unthreaded non-tapering segment having the second internal diameter which extends from the controlled depth to a second controlled depth, and an angled shoulder which tapers from the second internal diameter to a third internal diameter and which extends from the second depth to a third controlled depth.