Patrick A Mack

Title: Innovations of Patrick A. Mack

Introduction

Patrick A. Mack is an accomplished inventor based in Carpenteria, California. He has made significant contributions to the field of relay devices, holding 2 patents that showcase his innovative approach to technology. His work focuses on enhancing the functionality and reliability of relay systems.

Latest Patents

One of his notable inventions is the DC vacuum relay device with an angular impact break mechanism. This relay device utilizes an angular 'impact break' method to achieve contact break. A rotatable armature is pivotally mounted to one end of the relay while its other end remains separated from the relay pole center by a spring. A separate rotatable actuator, carrying a moving contact, is movably positioned atop the armature and pivoted at the same point where the armature is pivotally mounted. The armature responds to the electromagnetic effects caused by the excitation of the coil and rotates downward towards the pole center. The actuator rotates along with the armature, due to a spring receptacle on the armature and an overtravel spring between the receptacle and actuator, until the moving contact connected to the actuator contacts the stationary contacts of the relay. After contact, the armature continues its rotation while the actuator maintains the contact between the moving and stationary contacts. Upon de-energization, the armature rotates upward and away from the pole center and, before making contact with the actuator, acquires kinetic energy which is imparted upon the actuator upon impact with the same. The impact force is sufficient to break the previously closed contacts and any welding that occurs between the contacts. The relay device further provides a number of features serving to reduce arcing, puddling, and welding.

Another significant patent is the DC vacuum relay device, which utilizes a linear 'impact break' method for contact break. An armature shaft has attached at one end a plunger situated at the base of the relay core. The armature has a terminal end portion at its other end. A spring provides a biasing force to maintain the plunger and armature shaft in an open state. Resiliently mounted on the armature shaft adjacent its end opposite the plunger is a movable contact disc rotatable about the armature shaft for coming in contact with two stationary contacts in the closed state. The armature shaft towards its plunger end extends into an armature travel cavity. The armature shaft towards its