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Browse Prior Art Database

Multidirectional Locking Feature for Plastic Enclosure with Electromagnetic Control Seal

IP.com Disclosure Number: IPCOM000111063D
Original Publication Date: 1994-Feb-01
Included in the Prior Art Database: 2005-Mar-26
Document File: 2 page(s) / 40K

Publishing Venue

IBM

Related People

Carolan, PL: AUTHOR [+2]

Abstract

Described is a method of retaining a conductive plastic cover on an enclosure for printed circuit cards without the use of tools or fasteners and produce a tight seam for electromagnetic control.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 100% of the total text.

Multidirectional Locking Feature for Plastic Enclosure with Electromagnetic
Control Seal

      Described is a method of retaining a conductive plastic cover
on an enclosure for printed circuit cards without the use of tools or
fasteners and produce a tight seam for electromagnetic control.

      Figs. 1 and 2 show the cover 1 as it is placed on the enclosure
2.  The tab 3 flexes to allow the cover to be placed flush to the
enclosure (Figs. 3 and 4) but does not snap into position under
feature 4.

      The cover 1 is now pressed at the point indicated by 5 in Fig.
5 and deflects into the recess in the base 2 until tab 3 snaps under
feature 4 (Fig. 6).  This produces a preloaded seal between the cover
and base for improved electromagnetic control.

      During the assembly process, the tab 6 on the cover (Fig. 2)
moves into the hole 7 in the base.  This produces a locking action to
prevent movement of the cover relative to the base which could allow
tab 3 to release.