Abstract: A rotary switch includes a keylock housing having a collar disposed therein and a rotor disposed in a switch case housing to provide an internal labyrinth geometry. The collar includes a plurality of spaced mechanical stops to provide multiple mechanical travel options determined by the orientation with which the collar is disposed in the housing. Thus the stop collar may be disposed in the keylock housing in a plurality of different orientations with each of the orientations providing a keylock mechanism disposed in the keylock housing with a corresponding mechanical travel. The internal labyrinth geometry provided by the rotor-switch case housing assembly increases the electrical path length through which an electric charge must travel. Thus, the rotor-switch case housing assembly provides the rotary switch with protection from electrostatic discharge.

Abstract: A method for constructing a multiple-pole switch of the dual in-line package type initially manufacturing a base unit with integral terminals and a cavity for each pole. A movable contact having first and second end portions and intermediate portions are deposited in each cavity. A double-injection molding process produces a rotatable actuator and a cover that is assembled onto the base unit to capture the movable contacts in their corresponding cavities.

Abstract: A terminal structure for an electrical switching device. The terminal structure comprises an integral thin planar member with a external terminal section, a body section, a neck section and an internal contact section all lying along a longitudinal axis. The body section is intermediate the external terminal section and the neck section. The neck section is adjacent the internal contact section that can twist about the neck section to be rotated with respect to the body and external terminal sections. During manufacture, the terminal structure is installed in planar form through a conforming passage in a molded housing. Then the internal contact section is twisted to lock the terminal structure in the housing and to form a seat for a movable contact.

Abstract: A snap action switch including a switch in incipient form. The switch comprises a contact having a cut-out tongue mounted on a post with the tongue bent to form a spring, the post being one terminal. The other end of the element remote from the tongue end initially contacts an exposed second or third terminal above or below the other end. When an actuator or nose from a resilient body acts against the surround adjacent the tongue end, force is exerted against the contact. The contact snaps from the initial connection between the nose and one of the second or third contacts to the other. When the resilient body relaxes, the nose resumes its original position and the switch snaps back to resume a connection between the post and the initial connection with the second or third terminal.

Abstract: A machine for inserting socket contacts into holes in electrical panel boards or printed circuit boards. A vibratory feeder is coupled through an escapement by means of a flexible tube to a hand held insertion tool. A timing mechanism operates the escapement at a predetermined rate to individually feed socket contacts to the tool, where they are dispensed into the holes in a panel board. Operation of the timing mechanism can be controlled by a foot switch. The method for insertion is also disclosed.

Abstract: A dual-in-line programming jumper pin assembly for use with electrical panel boards having dual-in-line arrays of holes therethrough. Jumper pins may be mounted as desired in slots in an insulator having a shape and size similar to the body of a dual-in-line electronic package, for purposes of electrically interconnecting two or more socket contacts mounted in a panel board. Such jumper pins having different configurations may interconnect, among others: two or more adjacent socket contacts in a line; two socket contacts on opposite sides of an array; two adjacent socket contacts with a third on the opposite side of the array; and two adjacent socket contacts with two other adjacent ones on the opposite side of the array. Means are provided on each jumper pin to anchor it firmly within the slots in the insulator. The jumper pins may be employed for interconnecting two or more socket contacts independently of the insulator.

Abstract: An adaptor for interfacing coaxial cable with electronic circuit boards. The adaptor has a shape similar to a dual-in-line electronic circuit package with contact pins extending therefrom and includes one or more miniature coaxial connectors for plug-in connection of a coaxial cable thereto.

Abstract: A multi-layer panel employing a resistor-terminator module in the form of a single-in-line package located adjacent conventional dual-in-line packages, with interconnections to be made by means of wire wrapping. The resistors in the single-in-line package have one common lead electrically connected to a conductive layer in the panel. Conductive layer surface areas are maximized for improved signal transmission characteristics.

Abstract: A socket for a dual-in-line electronic package. The socket is plugged into a printed circuit board having dual-in-line arrays of holes therethrough, and an electronic package is removably plugged into the socket. Several alternative means are disclosed to prevent undesired wicking of the solder into the socket contact cavities above the holes in the printed circuit board when the socket is wave soldered to the board.

Abstract: A method for mounting socket contacts to the leads of electronic component packages having a dual-in-line configuration, and for one-step mounting of the pre-socketed packages to dual-in-line arrays of holes in a panel board. Dual-in-line packages (DIP) are fed to a processor where a plurality of socket contacts are separated into two parallel spaced rows and the leads of the DIP are inserted into the sockets. The thus pre-socketed DIP's are repackaged for further handling, to ultimately be assembled to a panel board wherein dual-in-line arrays of holes have been drilled. The ends of the socket contacts projecting from the back side of the board are normally wave soldered for permanent electrical connection, while the IC remains in position secured to the board by means of the socket contacts.