Electromagnetic interference shielding device
AssigneeTektronix, Inc.
InventorDelmer E. Snyder
Life of this patent
Estimating the term…
Abstract
An electromagnetic interference (EMI) shielding device for use in supporting members that receive enclosure covers of electrical or electronic instruments. The EMI device comprises an L-shaped strip of metal having first contact means which maintain the device in position in a groove in the supporting member and provide electrical contact therewith and spring contact means against which an edge of an enclosure member disposed in the groove engages thereby providing electrical contact therewith and securely maintaining the enclosure member in position.
Claims7
In combination with an electronic equipment cabinet including an elongate support member having means therein defining a longitudinally-extending groove, and a closure member having an edge portion thereof extending into said groove, improved electromagnetic interference shielding means disposed within said groove for maintaining electrical contact between said members, said shielding means comprising
- an elongate metal strip having an angular cross-sectional configuration provided by first and second leg portions thereof,
- a plurality of cantilever spring members disposed at spaced-apart locations along said first leg portion, said spring members extending in a generally longitudinal direction form one face of said portion, and
- a plurality of tangs projecting from the opposite face of said first leg portion,
- said strip being positioned within said groove with said spring members pressing said edge portion of the closure member against a first inner surface of said groove, and with said tangs engaging a second inner surface of the groove.
An electromagnetic interference shielding device for use in combination with an electronic equipment enclosure that includes an elongate support member having means therein defining a logitudinally-extending groove, said shielding device comprising
- an elongate metal strip having an L-shape cross-sectional configuration provided by first and second leg portions thereof,
- a plurality of elongate cantilever spring members disposed at spaced-apart locations along said first leg portion, said spring members extending in a longitudinal direction outward from one face of said portion, and
- a plurality of tangs extending in the same direction from the opposite face of said first leg portion,
- said strip being configured for slidable insertion into said groove, whereupon said spring members and tangs engage different interior groove surfaces for retention of the strip therein.
Dependencies are inferred from the claim text.