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:
Jul. 02, 1991
Filed:
Oct. 11, 1989
Lonnie E Johnston, Bedford, OH (US);
Crawford Fitting Company, Solon, OH (US);
Abstract
A device for swaging a ferrule onto the periphery of a cylindrical member includes a first piston mounted for reciprocation within a body and an anvil member drivingly connected to the first piston. The anvil member has a recess at one end to receive an end of the cylindrical member. A camming device is associated with the anvil member for camming a ferrule carried on the end of the cylindrical member into tight peripheral engagement. A second piston is mounted for reciprocation within the body in spaced relation to the first piston. A movement of the second piston is necessary in order to move the first piston. Located between the first and second pistons are an unexpandible chamber which contains a constant amount of fluid and a spring for resiliently urging the pistons away from each other.