RF shield having removable cover

• US 6,178,097 B1
• Filed: 01/22/1999
• Issued: 01/23/2001
• Est. Priority Date: 01/22/1999
• Status: Expired due to Fees

• Current Assignee: Dial Tool Industries Inc.
• Original Assignee: Dial Tool Industries Inc.
• Inventors: Hauk, Karel Jr.
• Primary Examiner(s): Gandhi, Jayprakash N.
• Application Number:
  US09/234,851
• Time in Patent Office: 732 Days
• Field of Search: 361/752, 361/753, 361/800, 361/816, 361/818, 174/35.R, 174/67, 174/65.R, 206/719
• US Class Current: 361/816
• CPC Class Codes: H05K 9/0026 integrally formed from metal sheet

Abstract

An RF shield having a removable cover is disclosed. An RF shield for shielding an electronic component comprises a plurality of sidewalls and an interconnecting top wall, with the sidewalls and the top wall enclosing a cavity adapted to receive therein the electrical component to be shielded. The top wall is constructed of a first thickness and includes a frangible connection defined by at least one score line circumscribing a removable central portion. The score line has a second thickness less than the first thickness. The frangible connection may be severed in response to the application of a force on the central portion, thereby permitting removal of the central portion to form an access opening.

Claims

1. An RF shield, comprising:

a plurality of sidewalls and an interconnecting top wall, the sidewalls and the top wall enclosing a cavity adapted to receive therein an electrical component to be shielded, the top wall having a first thickness and including a frangible connection defined by at least one score line circumscribing a removable central portion, the at least one score line having a second thickness less than the first thickness, whereby the frangible connection is severed in response to the application of a force on the central portion, thereby permitting removal of the central portion to form an access opening.

2. The RF shield of claim 1, wherein the central portion includes a plurality of upwardly deflected corner portions.

3. The RF shield of claim 2, wherein each of the corner portions includes a vertex defined by a pair of intersecting score lines, each of the pair of intersecting score lines having an end portion penetrating fully through the first thickness.

4. An RF shield, comprising:

a plurality of sidewalls and an interconnecting top wall, the sidewalls and the top wall enclosing a cavity adapted to receive therein an electrical component to be shielded, the top wall having a first thickness and including a frangible connection defined by at least one score line circumscribing a removable central portion, the at least one score line having a second thickness less than the first thickness, whereby the frangible connection is severed in response to the application of a force on the central portion, thereby permitting removal of the central portion to form an access opening, and wherein the cental portion includes an upwardly deflected corner portion.

5. The RF shield of claim 4, wherein the corner portion is defined by a pair of the score lines intersecting at a vertex, each of the pair of score lines having an end portion disposed adjacent to the vertex, each end portion penetrating fully through the first thickness.

6. The RF shield of claim 5, in combination with a replacement cover sized to cover the access opening.

7. The RF shield of claim 6, wherein the top wall includes a plurality of outer edge portions, each of the outer edge portions being defined in part by an adjacent one of the score lines.

8. The RF shield of claim 7, wherein the replacement cover is adapted to engage the outer edge portions, thereby securing the replacement cover over the access opening.

9. An RF shield adapted for connection to a substrate, the RF shield comprising:

a plurality of sidewalls;

an interconnecting top wall, the sidewalls and the top wall forming a cavity sized to receive therein an electrical component to be shielded, the top wall having a first thickness and including a frangible connection generally circumscribing and defining a removable central portion, the frangible connection being defined in part by a plurality of score lines, each of the score lines having a second thickness less than the first thickness; and

at least one upwardly deflected portion formed in the central portion, the upwardly deflected portion being defined in part by a score line extending fully through the first thickness;

whereby the frangible connection is severed in response to the application of an upward force on the central portion, thereby permitting removal of the central portion to form an access opening.

10. The RF shield of claim 9, wherein the access opening includes a plurality of edge portions, and further including a replacement cover adapted to engage the edge portions thereby covering the access opening.

11. The RF shield of claim 10, wherein each of the edge portions is defined by an adjacent one of the score lines.

12. The RF shield of claim 9, wherein the central portion includes an upwardly deflected corner portion.

13. The RF shield of claim 11, wherein the corner portion is defined by a pair of the score lines intersecting at a vertex, each of the pair of score lines having an end portion disposed adjacent to the vertex, each end portion penetrating fully through the first thickness.

14. The RF shield of claim 9, wherein the central portion includes a plurality of upwardly deflected corner portions.

15. The RF shield of claim 14, wherein each of the corner portions includes a vertex defined by a pair of intersecting score lines, each of the pair of intersecting score lines having an end portion penetrating fully through the first thickness.

16. An RF shield, comprising:

a plurality of sidewalls;

an interconnecting top wall, the sidewalls and the top wall forming a cavity sized to receive therein an electrical component to be shielded, the top wall having a first thickness and including a frangible connection generally circumscribing a removable central portion, the frangible connection being defined in part by a plurality of shear lines, each of the shear lines having a second thickness less than the first thickness, at least two of the shear lines intersecting at a vertex to form a corner portion, each of the at least two shear lines having an end portion disposed adjacent to the vertex, each end portion penetrating fully through the first thickness; and

a tool insertion aperture formed in the central portion, the tool insertion aperture being defined in part by a score line penetrating fully through the first thickness, the tool insertion aperture further including an upwardly deflected portion formed in the central portion;

thereby permitting the separation of the central portion from the top wall to form an access opening upon the application of an upward prying force caused by a tool inserted into the tool insertion aperture.

17. The RF shield of claim 16, wherein the access opening includes a plurality of edge portions, and further including a replacement cover adapted to engage the edge portions thereby covering the access opening.

18. An RF shield, comprising:

a plurality of sidewalls;

an interconnecting top wall, the sidewalls and the top wall forming a cavity sized to receive therein an electrical component to be shielded, the top wall having a first thickness and including a frangible connection generally circumscribing a removable central portion, the frangible connection being defined in part by a plurality of shear lines, and wherein the central portion includes a plurality of upwardly deflected corner portions, each of the shear lines having a second thickness less than the first thickness; and

a tool insertion aperture formed in the central portion, the tool insertion aperture being defined in part by a score line penetrating fully through the first thickness, the tool insertion aperture further including an upwardly deflected portion formed in the central portion;

thereby permitting the separation of the central portion from the top wall to form an access opening upon the application of an upward prying force caused by a tool inserted into the tool insertion aperture.

19. An RF shield, comprising:

a sidewall;

an interconnecting planar top wall, the sidewall and the top wall forming a cavity sized to receive therein an electronic component to be shielded, the top wall having a first thickness and including a removable central portion being circumscribed by a line of separation, the line of separation being defined by a shear line having a second thickness less than the first thickness;

whereby the central portion is removable along the line of separation by applying a prying force, thereby creating an access opening for accessing the electronic component within the cavity.