Emhart Inc.

Rheem Manufacturing Company

David S Calkins

James M Bradbury

David J Banducci

Mark T Steiner

Eric Robert Jurczyszak

Christopher Mark Hayden

Sergiu Gabriel Mihu

Curtis J Keohane

Peter C Thomas

Kathleen L Daudish

John O'Hara

Portable heated water system

A portable rivet setting system is provided with a modular design. The portable rivet setting system includes an electronic control module, a pneumatic control module, a rivet feeder device, an escapement mechanism and an umbilical assembly including a rivet setting tool each modularly designed. The modular design improves the ability to react to diagnosed problems and allows the replacement or substitution of a single module while the faulty module can be repaired. The easy replacement or substitution of a module greatly reduces the down time associated with repairing the rivet setting system and allows a user to remove and replace a module with limited technical capabilities.

Modular portable rivet setting tool

A rivet delivery device is provided for transferring a rivet from a rivet passage to a nose piece of a pulling head and jaw case mechanism. The rivet delivery device is air driven to extend forwardly of the rivet setting tool and rotates to present a rivet in front of the jaws and then transfers the rivet into the jaws. The angular rotation and stroke length of the rivet delivery device can be easily adjusted. A double-acting piston is driven in both directions by positive air pressure to extend and rotate the delivery device in front of the nose piece and returning the rivet delivery device after rivet transfer. The use of a double-acting piston greatly enhances the speed at which the, rivet delivery device can operate.

Rivet tool adjustable rivet delivery device

Power supply and rivet supply console for a rivet setting tool

An improved escapement mechanism is provided including a reciprocating nesting block which periodically advances a rivet or other fastener to a delivery tube. The escapement mechanism includes a cover plate mounted to the housing and secured in place by a pair of locating pins and a thumb screw assembly which makes removal of the cover plate very simple. The nesting block is provided with an elongated slot which is engaged by a head portion of an end fitting attached to drive rod of a drive mechanism. The sliding engagement of the end fitting with the elongated slot of the nesting block provides for easy changeover to other nesting blocks as well as improved maintenance and cleaning.

Rivet tool escapement mechanism

Rivet setting tool

Growing community of inventors

Branford, CT, United States of America

David S Calkins