Overmolded substrate

• US 20060204717A1
• Filed: 05/08/2006
• Published: 09/14/2006
• Est. Priority Date: 04/30/2004
• Status: Abandoned Application

• Current Assignee: Medtronic Incorporated (Medtronic Plc)
• Original Assignee: Medtronic Incorporated (Medtronic Plc)
• Inventors: Kast, John E., Peters, Charles E., Deininger, Steve T.
• Application Number:
  US11/429,706
• Publication Number:
  US 20060204717A1
• Time in Patent Office: Days
• US Class Current: 428/137
• CPC Class Codes: A61N 1/375 Constructional arrangements, e.g. casings
• CPC Class Codes: A61N 1/37512 Pacemakers
• CPC Class Codes: A61N 1/3758 Packaging of the components within the casing
• CPC Class Codes: B29C 2045/14893 Preventing defects relating to shrinkage of inserts or coating material
• CPC Class Codes: B29C 2045/14942 Floating inserts, e.g. injecting simultaneously onto both sides of an insert through a pair of opposed gates
• CPC Class Codes: B29C 2045/14967 Injecting through an opening of the insert
• CPC Class Codes: B29C 45/14065 Positioning or centering articles in the mould
• CPC Class Codes: B29C 45/14639 for obtaining an insulating effect, e.g. for electrical components
• CPC Class Codes: B29C 45/1671 with an insert
• CPC Class Codes: Y10T 428/24322 Composite web or sheet

Abstract

An overmolded substrate having a generally planar substrate with a plurality of support feet on the first side of the substrate. A molding material is molded around the substrate enveloping the substrate of both the first side and the second side of the substrate. The substrate may have a coil positioned on the second side of the magnetic substrate.

Claims

1. An overmolded substrate having a first side and a second side, comprising:

a generally planar substrate;

a plurality of support feet on said first side of said substrate; and

a molding material molded around said substrate enveloping said substrate of both said first side and said second side of said substrate.

2. An overmolded substrate as in claim 1 wherein said support feet are molded in a first molding step and said molding material is molded around said substrate in a second molding step.

3. An overmolded substrate as in claim 2 wherein molding material is substantially evenly distributed on said first side and said second side during molding;

4. An overmolded substrate as in claim 1 wherein said substrate is overmolded only from said first side of said substrate.

5. An overmolded substrate as in claim 1 wherein said substrate has a central hub opening.

6. An overmolded substrate as in claim 5 wherein said molding material is distributed to said second side of said substrate through said central hub opening.

7. An overmolded substrate as in claim 1 wherein said feet have a circular cross-section.

8. An overmolded substrate as in claim 7 wherein molding material forms around each of said plurality of feet.

9. An overmolded substrate as in claim 8 wherein said central hub opening has a circular post around which said molding material is allowed to form.

10. An overmolded substrate having a first side and a second side, comprising:

a generally planar magnetic substrate;

a coil positioned on said second side of said magnetic substrate;

a plurality of support feet on said first side of said magnetic substrate; and

a molding material molded around said substrate enveloping said magnetic substrate on both said first side and said second side of said magnetic substrate.

11. An overmolded substrate as in claim 10 wherein said support feet are molded in a first molding step and said molding material is molded around said magnetic substrate in a second molding step.

12. An overmolded substrate as in claim 11 wherein molding material is substantially evenly distributed on said first side and said second side of said magnetic substrate during molding;

13. An overmolded substrate as in claim 11 wherein said second side of said molding material is concave.

14. An overmolded substrate as in claim 10 wherein said magnetic substrate is overmolded only from said first side of said magnetic substrate.

15. An overmolded substrate as in claim 10 wherein said magnetic substrate has a central hub opening.

16. An overmolded substrate as in claim 15 wherein said molding material is distributed to said second side of said magnetic substrate through said central hub opening.

17. An overmolded substrate as in claim 10 wherein said feet have a circular cross-section.

18. An overmolded substrate as in claim 17 wherein molding material forms around each of said plurality of feet.

19. An overmolded substrate as in claim 18 wherein said central hub opening has a circular post around which said molding material is allowed to form.