A modular matrix with plug interconnection including at least two individual modular matrix boards of insulating material essentially alike in construction with each board having an upper and a lower face, upper conductive members secured to the upper face and lower conductive members secured to the lower face, detachable contacts secured to the boards, certain of the contacts being electrically united to the upper conductive members and certain of the contacts being electrically united to the l...

A solenoid operated fuel injector discharges into an internal combustion engine induction passage adjacent the combustion chamber intake port. Fuel is supplied to the injector through a tubular fuel rail which is received by and clamped in a recess at the top of the injector. A thermistor senses injector tip temperature and controls the duration of energization of the solenoid to compensate for a reduction in fuel delivery at high temperatures.

A tool such as a sledge or an axe is fastened on a handle by an adhesive which expands as it solidifies. A flexible sleeve is fitted on the handle and has a flange which is disposed at the lower end of the end portion of the handle that projects into the usual bore in the head. The flange closes the bottom of the bore and the sleeve includes an upwardly projecting extension which engages the lower end of the wall of the bore so that the flange and the extension locate the head properly on the ha...

Multiple electrical connections between circuits in axially displaced housings are made by mounting the connectors so that they are at right angles to the axis of the housings.

A multilayer interconnection is prepared by forming a stable insulating film on a nitride film which is formed on a first interconnection metal layer, and then, a second interconnection metal layer is formed on the insulating film. The insulating film can be made of aluminum oxide, an oxynitride or the other metal oxide. A silicon rich layer can be used for this purpose.

A conductor for transmitting an electrical signal from a signal generator on a rotating member to a signal detector on a relatively stationary member across the motion interface between the two members comprises at least one solid carbon graphite ring mounted coaxially between the two members and having a first annular surface in intimate contact with a mating conductive surface on the signal generator and having a second annular surface in intimate contact with a mating conductive surface on th...

A rectangular channel member has coplanar spaced-apart wall portions defining a slot therebetween and each having a flange extending from the slot inwardly of the channel member and away from the other wall portion at an acute angle. A generally U-shaped connector is disposable within the channel member across the slot and includes rectangular recesses receiving the flanges therein. A threaded fastener engageable with the connector extends through the slot for engagement with a support member, t...

An electronic circuit interconnection system permitting high density mounting of ceramic chip-carrier integrated circuit devices or other beam-lead, dual-in-line (DIP), tape-automated-bonded (TAB), flip-chip, or direct-mounted i.c. devices with wire-bonded interconnects or the like has economical, dimensionally-stable, interconnection substrate which has high heat dissipating properties. The substrate has glass components which are fused onto etched metal patterns and which are proportioned rela...

A flexible connector cable for providing high density and reliable electrical interconnections between printed circuit boards or any other surfaces having conductive paths that need connection to conductive paths on adjacent surfaces. The connector cable comprises a flat flexible laminar structure including an electrically-insulative layer and an electrically-conductive layer. The insulative layer is typically formed on a bonded plastic such as Polyimide and the conductive layer is typically for...

An arrangement for interconnecting a pair of hybrid integrated circuit boards mounted by means of pins in an upstanding position on a horizontally extending base circuit board in closely spaced, substantially parallel relationship, each of the hybrid circuit boards being provided with a row of contact terminals extending along the upper edge thereof together with a secondary printed circuit board having a row of downwardly directed, spring-like contact elements mounted along each side edge, the ...