Two-part protector for a pipe end which is provided with an external or internal thread
AssigneeThread Guard Technology Ltd.
InventorGeorge A. Kovacs, Jr.
Life of this patent
Estimating the term…
Abstract
A two-part protector for a pipe end provided with an external thread or internal thread has a substantially cylindrical thread part of plastic material that covers the thread of the pipe end and further has a sleeve of metal that is also substantially cylindrical and supports the threaded part rearwardly. The threaded part and the sleeve engage one another lockingly by locking projections and locking cutouts. The sleeve, with a terminal edge that is leading when realizing the locking action, is pressed at least near the locking recesses tightly against the threaded part.
Claims11
Method for producing a two-part protector (23, 43), the method comprising the steps of:
- manufacturing a cylindrical sleeve (7, 33) of metal with locking cutouts (2, 31) and a terminal edge;
- injection-molding from plastic material a threaded part (14, 40) with locking projections;
- coaxially moving the cylindrical sleeve (7, 33) and the threaded part (14, 40) into each other with the terminal edge facing the threaded part until locking relative to one another occurs by engagement of the locking projections in the locking cutouts,
- deforming and tightly pressing the terminal edge of the cylindrical part against the threaded part (14, 40) so as to tightly contact the threaded part.
Dependencies are inferred from the claim text.