Browse Prior Art Database

Air Filtration System for a Small Rigid File

IP.com Disclosure Number: IPCOM000060293D
Original Publication Date: 1986-Mar-01
Included in the Prior Art Database: 2005-Mar-08
Document File: 2 page(s) / 73K

Publishing Venue

IBM

Related People

Wilson, DR: AUTHOR

Abstract

The recirculating filter cartridge is formed of four components, shown in the exploded view of Fig. 1, upper and lower housing elements 5 and 6 respectively; a sheet of filter media 7 and pressure-sensitive adhesive media 8 having adhesive on both sides. The lower housing element 6 includes radial media support ribs 9 extending from the central opening to the peripheral wall 10. Peripheral wall 10 includes spaced projections 11 that engage the filter housing top element 5 in the assembled condition to form air inlet opening therebetween. The recirculating filter media 7 is bonded to the rib surfaces 13 and along the margins to the shoulder 14 that extends continuously along the inside of peripheral wall 10.

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Air Filtration System for a Small Rigid File

The recirculating filter cartridge is formed of four components, shown in the exploded view of Fig. 1, upper and lower housing elements 5 and 6 respectively; a sheet of filter media 7 and pressure-sensitive adhesive media 8 having adhesive on both sides. The lower housing element 6 includes radial media support ribs 9 extending from the central opening to the peripheral wall 10. Peripheral wall 10 includes spaced projections 11 that engage the filter housing top element 5 in the assembled condition to form air inlet opening therebetween. The recirculating filter media 7 is bonded to the rib surfaces 13 and along the margins to the shoulder 14 that extends continuously along the inside of peripheral wall 10. The bonding of filter media 7 to lower housing element 6 and the subsequent bonding of upper element 5 to lower element 6 can be effected using adhesive, ultrasonic welding or a fusion bond. The toroid 8 with double- sided adhesive is applied to the upper surface 15 of housing element 5, and the cartridge is thereafter adhered to the inner surface 16 of the cover 17 of a disk drive 20, as shown in Fig. 2.

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