Back to results
US 3,940,840 AGranted
Tool for extraction of a preformed fitting from a peripheral groove
AssigneeEtat Francais
InventorEugene Sauveur Bellia
Life of this patent
Estimating the term…
Abstract
A tool is provided for the extraction of preformed fittings placed in a peripheral groove hollowed into the wall of a bore. A pincer device is formed by two tapered noses, one fixedly attached to a hollow body and the second attached to a piston capable of sliding within the hollow body. An adjustable stop controls the width of the pincer device, and a reference marking indicates the setting of the stop. A grip sleeve and positioning holder assist a user in operating the tool.
Claims10
A tool for extracting a preformed fitting from a peripheral groove hollowed in the wall of a bore comprising:
- a cylindrical, hollow body having an external diameter less than the diameter of said bore, at least one longitudinal slit opening at one of the ends of said hollow body and at least one nose, disposed at the bottom of said slit and projecting to the outside of said hollow body;
- a piston capable of sliding inside said hollow body, having at least one nose at one of the ends of said piston, positioned so as to engage in said at least one slit of said hollow body, and projecting to the outside thereof;
- said tool including means for positioning said one end of said hollow body within a bore to position the nose of said hollow body and the nose of said piston at a pre-determined position within said bore.
Dependencies are inferred from the claim text.