Inductively linked receiver

• US 3,357,434 A
• Filed: 04/06/1964
• Issued: 12/12/1967
• Est. Priority Date: 04/06/1964
• Status: Expired due to Term

• Current Assignee: Gurdon R. Abell
• Original Assignee: Gurdon R. Abell
• Inventors: Abell, Gurdon R.
• Application Number:
  US04/357,396
• Time in Patent Office: 1,345 Days
• US Class Current: 607/2
• CPC Class Codes: A61F 2250/0001 Means for transferring electromagnetic energy to implants
• CPC Class Codes: A61N 1/3787 from an external energy source

Claims

1. IN AN INDUCTIVELY-LINKED DEVICE FOR RECEIVING ELECTRICAL ENERGY WITHIN A LIVING BODY AND PRODUCING A FLOW OF ELECTRICAL CURRENT THROUGH A LOAD, THE COMBINATION COMPRISING:

(A) AN ANNULAR PICKUP COIL HAVING A GENERALLY FLAT END PORTION AND AN OPEN CENTER PORTION;

(B) A SUBSTANTIALLY-FLAT FERROMAGNETIC MEMBER HAVING AN OUTER PERIPHERY SUBSTANTIALLY THE SAME AS THAT OF SAID COIL, SAID MEMBER BEING IN SUBSTANTIALLY ABUTTING RELATIONSHIP WITH SAID FLAT END PORTION OF SAID COIL AND HAVING A THICKNESS DIMENSION THAT IS SMALL COMPARED TO THAT OF SAID COIL;