Amp LLC

Robert F Cobaugh

James R Coller

Attalee Snarr Taylor

Howard W Andrews

Norwood C Graeff

James Edward Lynch

James Lee Fedder

Timothy B Billman

Kenneth R Parmer

Clifford F Bobb

Edward C Dowling

Donald Judson Doty

David W Mendenhall

The invention relates to the forces generated in the cantilever beam type contacts by deflecting pins or leads. More particularly, the invention teaches associating the cantilever beam with an elastomer which supplements the beam's capability of exerting force due to being deflected.

Elastomeric supplement for cantilever beams

The present invention relates to the compliant section on contact elements which are received in plated through holes in printed circuit boards and are structured to hold such elements therein without soldering. More particularly, the invention discloses an improved structure relative to the legs forming the moving members of the compliant section. The invention further discloses an improved structure to stabilize the element against normal forces.

Contact element

The present invention relates to a card edge connector having means so that a circuit card may be freely inserted into and withdrawn therefrom. The connector includes an upper housing slidably mounted on cam means so that upon the upper housing being slid vertically upwardly, contact elements extending upwardly thereinto are forced into the card receiving slot and against a card which may be positioned therein.

High density ZIF card edge connector

The present invention discloses a contact element for use in card edge connectors on which the contact surface is located at the free end of the cantilever beam and includes a sharp spherical radius.

Improved card edge connector

The present invention relates to card-latching systems on zero insertion force card edge connectors. More particularly, the latching system includes spring members having the lower ends thereof secured to the lower housing of the connector at each end of the card edge receiving slot and a concavo-convex intermediate section extending through a cam member attached to the vertically moving upper housing so the upper ends of the spring members are cammed in and out of engagement with the card inserted in the connector.

Latch system for ZIF card edge connectors

The invention disclosed herein relates to a biasing means provided in one end of a card-receiving slot of a card edge connector. The biasing means includes a spring loaded wedge slidably positioned in a sloping passage at one end of the slot. The wedge includes a vertical surface which engages a side of the card as the card is inserted in the slot. The wedge moving down the sloping passage increases the slot length to accommodate the card width without exerting significant longitudinal force against the end walls of the connector. Further, the wedge cannot be moved up the passage by an uneven force being exerted on the card; accordingly, the card can only be removed from the slot in a straight line.

Card biasing device for card edge connectors

The present invention relates to a connector system for electrically connecting a circuit card to a circuit board. More particularly the connector system includes an upper card-carrying member mated into a lower board mounted member without requiring insertion forces. Cam means on the lower member move the upper member laterally to electrically engage the contact elements positioned in both members.

Zero insertion force connector system

The present invention relates to a terminal which may be attached to a ceramic chip or other type substrate and which may be plugged into a PCB and thereby provide electrical connections between the substrate and the conductive traces on the board. More particularly, the terminal includes a receptacle for receiving the edge of a chip for mechanical retention and electrical contact, a spring member which protects the chip from thermal and mechanical stresses, means for insertion into a board's plated-through hole, and means establishing redundant short electrical paths between the pad on the chip and the traces on the PCB. Further, the terminal may be encapsulated in an elastomeric material which provides additional spring resiliency and also provides an environmental seal.

Terminal for connecting a ceramic chip to a printed circuit board

The present invention relates to a contact clip which may be attached to a ceramic or other type substrate and which may be plugged into a PCB and thereby provide electrical connections between the substrate and the conductive traces on the board. More particularly, the clip includes a receptacle for receiving the edge of a substrate for mechanical retention and electrical contact, a spring arm which protects the substrate from thermal and mechanical stresses, a low force pluggable pin section for insertion into a board's plated-through hole, and means establishing redundant short electrical paths between the pad on the substrate and the traces on the PCB.

Contact clip for connecting a ceramic substrate to a printed circuit

The present invention relates to a connector into which a printed circuit board or card may be inserted and card guides associated with the connectors which guide and support the inserted card. More particularly, the connector consists of two housings having a common center card-receiving slot with terminals lining the walls thereof. Pins on the terminals pass through the base of the housings for insertion into a printed circuit mother board or the like. The guides have slots into which the edges of the printed circuit board slide. A flexible latch on the guides lock the boards against inadvertant movement.

Guide system for card edge connectors

A zero insertion force (ZIF) connector is preassembled with electrical terminals in a dielectric housing. The housing is molded with integral features that facilitate snap on assembly of a camming mechanism for the terminals. A multiblade insertion tool enters the housing to register with the contacts and to drive the terminals into apertures of a circuit board.

Preassembled electrical connector

The present invention relates to a system for providing input-output paths to and from a densely crowded multi-lager PCB (printed circuit board). More particularly the invention includes a pair of modules having a plurality of spaced conductive members extending normally therethrough and with the ends projecting laterally from opposing sides. The ends of the conductive members are inserted into plated through holes in the PCB on one side and into plated through holes on cards on the other sides. The cards have circuits extending from the plated through holes to an edge as does the PCB. The two cards and PCB are plugged into card-edge connectors as a unit. The connectors may be mounted on a mother board, back panel or the like.

Connection system for printed circuit boards

A card edge terminal is provided with a longitudinally trifurcated portion defining a resilient beam which presses against a circuit card and provides a wiping action of its contact surface along the card. The wiping action will tend to clean away debris and contaminants.

Trifurcated card edge terminal

A unitary, molded card straightener is selectively mounted along the mouth of a card edge connector. The straightener funnels the card edge toward the mouth of the card edge connector and impinges against the side of the card prior to entry thereof into the connector, so that warpage in the card is flattened by the straightener.

Snap on card straightener

Power bus bars and ground return bus bars of relatively massive sizes are incorporated into high speed electronic circuitry provided on a large number of circuit cards which are coupled to the power and ground return bus bars with minimized millivolt resistance losses and reactance losses.

Growing community of inventors

Elizabethtown, PA, United States of America

Robert F Cobaugh