3com Corporation

Scott David Anderson

John Francis Dugan

A fan and chassis assembly, a fan, bracket and chassis arrangement as well as a fan and chassis system and process for providing a fan and chassis are disclosed. The assembly includes a fan, a bracket and a chassis. The fan includes a fan housing having an outer periphery. The chassis includes a sheet metal piece having an air flow opening in the region of a fan bracket receiving space. The bracket is a sheet metal fan bracket defining a fan housing receiving space and having integral fan retention elements engaging the fan housing periphery and for holding the fan in a position in the fan space. The bracket retention elements are integrally formed in the chassis and in the fan bracket respectively. The bracket retention elements include a flange bent outwardly from a chassis surface and defining a slot at a location adjacent to the fan bracket receiving space, a fan bracket flange slidably received in the slot, a first fixing element formed on the chassis and a second fixing element formed on the bracket. The first fixing element has a shape cooperating with a shape of the second fixing element.

Electronic device fan mounting system

A technique for installing circuit cards on a motherboard in an electronic device. A motherboard, having a plurality of keyhole apertures and locking apertures, mounts in the electronic device. Cardguide pairs mount on the motherboard to form expansion ports for receiving circuit cards. Each cardguide pair has two parallel card guides. Each card guide has an elongated body with a bottom member and a longitudinal groove. Entrance ports and ramps located at either end of the body communicate with the groove. Mushroom mounting lugs and resilient locking hooks mount on the bottom member. A cardguide installer places each card guide on the motherboard while passing each mushroom lug into a wide segment of a keyhole aperture. The installer then slides the card guides parallel to the plane of the motherboard to move the mushroom lugs into a narrow segment of the keyhole apertures, while the hooks couple to the locking apertures.

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N. Grafton, MA, United States of America

Scott David Anderson