Abstract: Improvements in MolyPhos corrosion resistant coatings for zinc plated surfaces and zinc alloy surfaces are presented, which enhances corrosion protection in marine environments, and other corrosive atmospheres. In particular a cerium fluoride stabilized MolyPhos coating, and organic acid stabilized coatings are provided, which improve resistance to standard salt fog test exposures to at least 300 hrs, thus extending applicability of a conventional MolyPhos coating to applications to telecommunications, electronics, automotive and aviation equipment. MolyPhos coatings offer promise as an environmentally friendly alternative to conventional chromate corrosion coatings.

Abstract: An electronics enclosure includes an assembly of wall elements having metallic surfaces with a standard oxidization potential within the range of -0.25 to +0.5 volts, the wall elements rigidly secured together, and having a coating of molybdenum phosphate covering the metallic surfaces of the wall elements and providing electrical discharge continuity around the enclosure. The molybdenum phosphate coating provides a required degree of electrical conductivity for adequate electrostatic discharge thereby providing a Faraday cage to filter out any electromagnetic radiation attempting to pass through the enclosure. Of particular importance in the structure is the feature that the molybdenum phosphate is particularly effective as an electromagnetic interference element at junctures between wall elements of the enclosure. The molybdenum phosphate coating may be applied to the wall elements either prior to assembly or following assembly.

Abstract: Mounting for holding a planar electronic device, e.g. a printed circuit board in electronic slots to receive edges of the electronic device and a clamp is inserted into each slot to clamp an edge of the device in heat conductive engagement with a side surface of the slot. The clamp has a rigid elongate clamp element inserted along the slot, springs to urge the clamp element towards the side surface of the clamp to provide a clamping action and a lever to move the clamp element out of a clamping position to release the electronic device.

Abstract: A sheet metal member with a securing arrangement to securely attach the member to another sheet member. The securing arrangement is an elongate structure with two ends integral with an edge of a body of the sheet metal member. The elongate structure extends between its ends around a spatial area and has a specific width. The elongate structure is flexible to a greater width in which a locking part securely grips the other sheet member between the body and the locking part of the structure.