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. 29, 1998
Filed:
Apr. 28, 1997
William C Russum, Tucson, AZ (US);
Wyko Corporation, Tucson, AZ (US);
Abstract
A threaded connection between adjoining male/female surfaces is produced by mating a plastic insert embedded in one surface with threads machined on the other surface. The plastic insert is pressed against the machined threads and deformed to provide conforming meshing threads in the insert, thereby producing a threaded engagement between the two surfaces. Preferably, the insert is sufficiently wide to overlap multiple machined threads and yield a stable, strip-resistant engagement. By providing at least three such inserts evenly distributed around the preexisting threads, an axially stable, screwable threaded connection is produced between the two surfaces that does not require precise machining or special tooling for unconventional threads. Although the inserts are preferably used in the female surface for ease of access, they can be used advantageously in equivalent fashion in the male surface of the screwable threaded connection.