IP Library › Granted Patent US 9,604,325
Granted Patent B2
US 9,604,325 · App. 13/303,762 · Granted Mar 28, 2017

Canal hearing devices and batteries for use with same

Inventors: Stuart Wenzel (San Carlos, CA); Chuangang Lin (Fremont, CA); Paul Wagner (San Carlos, CA); Igal Ladabaum (San Carlos, CA)
Assignee: Phonak, LLC
B23P17/00H01M2/0285H01M2/0408H01M6/02H01M12/06H04R25/602H04R25/604H04R25/658H04R25/652H04R25/654H04R25/656H04R2225/023H04R2225/49Y10T29/49108Y10T29/49799
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Quick Facts
Patent No.
US 9,604,325
App. No.
13/303,762
Granted
Mar 28, 2017
Kind
B2
Abstract

Hearing devices configured to fit within the bony portion of the ear canal and batteries that may be used with same.

Claims (20)

1. A method of making a battery can, comprising the step of:

coating a sacrificial mandrel in the shape of the battery can interior with battery can material to form a battery can wall.

2. A method as claimed in claim 1 , wherein

coating a sacrificial mandrel comprises coating a sacrificial mandrel in the shape of the battery can with a first metal layer and a second metal layer that is different than the first metal layer.

3. A method as claimed in claim 1 , wherein

coating a sacrificial mandrel comprises electroplating battery can material onto a sacrificial mandrel in the shape of the battery can.

4. A method as claimed in claim 1 , wherein

coating a sacrificial mandrel comprises coating a sacrificial mandrel, which has an anode portion, a cathode portion, an inwardly contoured region, with battery can material.

5. A method as claimed in claim 1 , further comprising the step of:

removing the sacrificial mandrel from the battery can.

6. A method as claimed in claim 4 , wherein

the sacrificial mandrel defines a longitudinal axis; and

the inwardly contoured region includes a flat surface that is substantially perpendicular to the longitudinal axis.

7. A method as claimed in claim 4 , wherein

the sacrificial mandrel defines a longitudinal axis; and

the sacrificial mandrel is asymmetric about the longitudinal axis.

8. A method as claimed in claim 7 , wherein

the sacrificial mandrel anode portion and/or the sacrificial mandrel cathode portion includes a substantially planar surface and a curved surface opposite the substantially planar surface.

9. A method as claimed in claim 1 , wherein

coating a sacrificial mandrel comprises coating a sacrificial mandrel in the shape of the battery can interior, and dimensioned such that the ratio of the longest dimension to the maximum dimension that is perpendicular to the longest dimension is at least 2.0, with battery can material.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 4, 2012
From: WAGNER, PAUL; WENZEL, STUART; AU, MICHAEL; LADABAUM, IGAL; LIN, CHUANGANG
To: INSOUND MEDICAL, INC.
Reel/Frame 027653/0475 →
Continuity (1)
Related Publication 20130125387A1 · May 23, 2013